build-appliance-image: Update to rocko head revision

(From OE-Core rev: 9d1129076658b4c5827c95ad8b195a7a100d7a9e)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

.gitignore

@@ -1,14 +1,12 @@
 *.pyc
 *.pyo
 /*.patch
-/.repo/
 /build*/
 pyshtables.py
 pstage/
 scripts/oe-git-proxy-socks
 sources/
 meta-*/
-buildtools/
 !meta-skeleton
 !meta-selftest
 hob-image-*.bb
@@ -20,20 +18,10 @@ hob-image-*.bb
 !meta-yocto
 !meta-yocto-bsp
 !meta-yocto-imported
-/documentation/*/eclipse/
-/documentation/*/*.html
-/documentation/*/*.pdf
-/documentation/*/*.tgz
-/bitbake/doc/bitbake-user-manual/bitbake-user-manual.html
-/bitbake/doc/bitbake-user-manual/bitbake-user-manual.pdf
-/bitbake/doc/bitbake-user-manual/bitbake-user-manual.tgz
+documentation/user-manual/user-manual.html
+documentation/user-manual/user-manual.pdf
+documentation/user-manual/user-manual.tgz
 pull-*/
 bitbake/lib/toaster/contrib/tts/backlog.txt
 bitbake/lib/toaster/contrib/tts/log/*
-bitbake/lib/toaster/contrib/tts/.cache/*
-bitbake/lib/bb/tests/runqueue-tests/bitbake-cookerdaemon.log
-_toaster_clones/
-downloads/
-sstate-cache/
-toaster.sqlite
-.vscode/
+bitbake/lib/toaster/contrib/tts/.cache/*

.templateconf

@@ -0,0 +1,2 @@
+# Template settings
+TEMPLATECONF=${TEMPLATECONF:-meta-poky/conf}

LICENSE

@@ -0,0 +1,14 @@
+Different components of OpenEmbedded are under different licenses (a mix
+of MIT and GPLv2). Please see:
+
+meta/COPYING.GPLv2 (GPLv2)
+meta/COPYING.MIT (MIT)
+meta-selftest/COPYING.MIT (MIT)
+meta-skeleton/COPYING.MIT (MIT)
+
+All metadata is MIT licensed unless otherwise stated. Source code
+included in tree for individual recipes is under the LICENSE stated in
+the associated recipe (.bb file) unless otherwise stated.
+
+License information for any other files is either explicitly stated 
+or defaults to GPL version 2.

README

@@ -1,114 +0,0 @@
-The poky repository master branch is no longer being updated.
-
-You can either:
-
-a) switch to individual clones of bitbake, openembedded-core, meta-yocto and yocto-docs
-
-   https://docs.yoctoproject.org/dev-manual/poky-manual-setup.html
-
-b) use the new bitbake-setup
-
-   https://docs.yoctoproject.org/bitbake/bitbake-user-manual/bitbake-user-manual-environment-setup.html
-
-You can find more information in our documentation: https://docs.yoctoproject.org/
-
-Note that "poky" the distro setting is still available in meta-yocto as
-before and we continue to use and maintain that.
-
-Long live Poky!
-
-
-
-
-Some further information on the background of this change follows. The 
-details are taken from:
-https://lists.openembedded.org/g/openembedded-architecture/message/2179
-
-TLDR: People have complained about the combo-layer built poky
-repository for years. It was meant to be a temporary thing, we now have
-an alternative and I'm therefore doing what I promised I'd do. Change
-is tough, things may break but this is the right point to at least try
-it.
-
-I'd like to note that:
-  * setting up builds with a separate oe-core and bitbake clone 
-    works as it always has done
-  * you can change your CI just to use those two repos instead of poky
-  * bitbake-setup isn't mandatory, it will just be what the yocto-
-    docs presents to users
-  * we don't have to stop maintaining the poky repository 
-    however nobody will test the new approach/code unless we do
-  * we are optionally exposing sstate mirrors in the new config
-  * we are also exposing config fragments to users
-  * poky as a DISTRO in meta-yocto remains
-
-A bit more about the history and background for those who are
-interested and then some FAQs:
-
-Back around 2010 when we split up openembedded-classic and started
-developing layers, we made the artificial "poky" repository construct
-as a way to let people easily and quickly get started with the project.
-without cloning and managing multiple repositories. Layers were a new
-idea with lots of rough edges. kas didn't exist, I think repo was only
-just created and it was a different world. For us, it meant hacking up
-a quick tool, "combo-layer" and it was really a temporary solution to
-fill a gap and it was at least as functional as repo of the era. It was
-assumed we'd work it out properly in the future.
-
-At developer meetings there are inevitable questions about why
-poky/combo-layer exist and few seem to actually like/support it. There
-are continual questions about why a tool doesn't exist or why we don't
-adopt one too.
-
-15 years later, a bit longer than we might have thought, we are finally
-in a position where there may be a viable way forward to change.
-
-It has taken us a bit of time to get to this point. I wrote the
-original description of something like bitbake-setup about 7-8 years
-ago. I shared it privately with a few people, the review feedback
-stopped me pushing it further as I simply did not have the bandwidth.
-We were fortunate to get funding from the Sovereign Tech Fund to start
-the work and whilst I'd probably prefer to avoid the issue, the time
-had come to start. Since then, Alexander Kanavin has put a lot of work
-into getting it to the point where it would be possible to switch. A
-huge thanks to him for getting this to the current point.
-
-Why not use kas/submodules/repo?
-
-This topic has been discussed in depth several times. Very roughly,
-these are either difficult to focus on our use cases or have specific
-designs and intent which we as a project would struggle to influence.
-We are taking significant influence from some of them but also trying
-to build something where we can benefit from tight direct integration
-with bitbake and the metadata. For example fragment support is generic
-and hopefully something other approaches can also benefit from. We want
-to provide something we can switch the projects docs and autobuilder to
-which we can control and develop as we need it to. We are not aiming to
-force anyone to switch, you can use whichever tool you want.
-
-Can we not keep poky [repository master branch] around?
-
-If we do that, nobody will use the new tooling and it will be a
-disaster as issues won't get resolved. We need our CI to use the same
-thing we promote to our new and experienced users. We need this new
-tooling to be usable by our experienced developers too. We have tried
-for months to get people to try it and they simply don't. Making a
-release with it won't change much either. It needs people using it and
-for that, poky has to stop being updated.
-
-What happens to poky [repository]?
-
-The LTS branches continue their lifetime as planned. For master, I'll
-probably put a final commit in changing to just a README which points
-people at the bitbake-setup changes and explains what happened.
-
-What are the timelines? Why now?
-
-If we're going to make a change, we really want this in the next LTS
-release, which is April 2026. We only have one release before that
-which is now, October 2025. We therefore need to switch now, and then
-give us time to update docs, fix issues that arise and so on and have
-it in a release cycle. Whilst it means delaying the Oct 2025 release
-slightly, that is the right thing to do in the context of the bigger
-picture.
-

README.LSB

@@ -0,0 +1,25 @@
+OE-Core aims to be able to provide basic LSB compatible images. There
+are some challenges for OE as LSB isn't always 100% relevant to its
+target embedded and IoT audiences. 
+
+One challenge is that the LSB spec is no longer being actively
+developed [https://github.com/LinuxStandardBase/lsb] and has 
+components which are end of life or significantly dated. OE 
+therefore provides compatibility with the following caveats:
+
+* Qt4 is provided by the separate meta-qt4 layer. Its noted that Qt4 
+  is end of life and this isn't something the core project regularly 
+  tests any longer. Users are recommended to group together to support
+  maintenance of that layer. [http://git.yoctoproject.org/cgit/cgit.cgi/meta-qt4/]
+
+* mailx has been dropped since its no longer being developed upstream 
+  and there are better, more modern replacements such as s-nail 
+  (http://sdaoden.eu/code.html) or mailutils (http://mailutils.org/).
+
+* A few perl modules that were required by LSB 4.x aren't provided:
+  libclass-isa, libenv, libdumpvalue, libfile-checktree,
+  libi18n-collate, libpod-plainer.
+
+* libpng 1.2 isn't provided; oe-core includes the latest release of libpng
+  instead.
+

README.hardware

@@ -0,0 +1 @@
+meta-yocto-bsp/README.hardware

README.poky

@@ -0,0 +1 @@
+meta-poky/README.poky

README.qemu

@@ -0,0 +1,15 @@
+QEMU Emulation Targets
+======================
+
+To simplify development, the build system supports building images to
+work with the QEMU emulator in system emulation mode. Several architectures
+are currently supported in 32 and 64 bit variants:
+
+  * ARM (qemuarm + qemuarm64)
+  * x86 (qemux86 + qemux86-64)
+  * PowerPC (qemuppc only)
+  * MIPS (qemumips + qemumips64)
+
+Use of the QEMU images is covered in the Yocto Project Reference Manual.
+The appropriate MACHINE variable value corresponding to the target is given
+in brackets.

bitbake/AUTHORS

@@ -0,0 +1,10 @@
+Tim Ansell <mithro@mithis.net>
+Phil Blundell <pb@handhelds.org>
+Seb Frankengul <seb@frankengul.org>
+Holger Freyther <holger@moiji-mobile.com>
+Marcin Juszkiewicz <marcin@juszkiewicz.com.pl>
+Chris Larson <kergoth@handhelds.org>
+Ulrich Luckas <luckas@musoft.de>
+Mickey Lauer <mickey@Vanille.de>
+Richard Purdie <rpurdie@rpsys.net>
+Holger Schurig <holgerschurig@gmx.de>

bitbake/COPYING

@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+License is intended to guarantee your freedom to share and change free
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+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
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+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
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bitbake/ChangeLog

@@ -0,0 +1,317 @@
+Changes in Bitbake 1.9.x:
+	- Add PE (Package Epoch) support from Philipp Zabel (pH5)
+	- Treat python functions the same as shell functions for logging
+	- Use TMPDIR/anonfunc as a __anonfunc temp directory (T)
+	- Catch truncated cache file errors
+	- Allow operations other than assignment on flag variables
+	- Add code to handle inter-task dependencies
+	- Fix cache errors when generation dotGraphs
+	- Make sure __inherit_cache is updated before calling include() (from Michael Krelin)
+	- Fix bug when target was in ASSUME_PROVIDED (#2236)
+	- Raise ParseError for filenames with multiple underscores instead of infinitely looping (#2062)
+	- Fix invalid regexp in BBMASK error handling (missing import) (#1124)
+	- Promote certain warnings from debug to note 2 level
+	- Update manual
+	- Correctly redirect stdin when forking
+	- If parsing errors are found, exit, too many users miss the errors
+	- Remove supriours PREFERRED_PROVIDER warnings
+	- svn fetcher: Add _buildsvncommand function
+	- Improve certain error messages
+	- Rewrite svn fetcher to make adding extra operations easier 
+	  as part of future SRCDATE="now" fixes
+	  (requires new FETCHCMD_svn definition in bitbake.conf)
+	- Change SVNDIR layout to be more unique (fixes #2644 and #2624)
+	- Add ConfigParsed Event after configuration parsing is complete
+	- Add SRCREV support for svn fetcher
+	- data.emit_var() - only call getVar if we need the variable
+	- Stop generating the A variable (seems to be legacy code)
+	- Make sure intertask depends get processed correcting in recursive depends
+	- Add pn-PN to overrides when evaluating PREFERRED_VERSION
+	- Improve the progress indicator by skipping tasks that have 
+	  already run before starting the build rather than during it
+	- Add profiling option (-P)
+	- Add BB_SRCREV_POLICY variable (clear or cache) to control SRCREV cache
+	- Add SRCREV_FORMAT support
+	- Fix local fetcher's localpath return values
+	- Apply OVERRIDES before performing immediate expansions
+	- Allow the -b -e option combination to take regular expressions
+	- Fix handling of variables with expansion in the name using _append/_prepend
+	  e.g. RRECOMMENDS_${PN}_append_xyz = "abc"
+	- Add plain message function to bb.msg
+	- Sort the list of providers before processing so dependency problems are 
+	  reproducible rather than effectively random
+	- Fix/improve bitbake -s output
+	- Add locking for fetchers so only one tries to fetch a given file at a given time
+	- Fix int(0)/None confusion in runqueue.py which causes random gaps in dependency chains	  
+	- Expand data in addtasks
+	- Print the list of missing DEPENDS,RDEPENDS for the "No buildable providers available for required...."
+	  error message.
+	- Rework add_task to be more efficient (6% speedup, 7% number of function calls reduction)
+	- Sort digraph output to make builds more reproducible
+	- Split expandKeys into two for loops to benefit from the expand_cache (12% speedup)
+	- runqueue.py: Fix idepends handling to avoid dependency errors
+	- Clear the terminal TOSTOP flag if set (and warn the user)
+	- Fix regression from r653 and make SRCDATE/CVSDATE work for packages again
+	- Fix a bug in bb.decodeurl where http://some.where.com/somefile.tgz decoded to host="" (#1530)
+	- Warn about malformed PREFERRED_PROVIDERS (#1072)
+	- Add support for BB_NICE_LEVEL option (#1627)
+	- Psyco is used only on x86 as there is no support for other architectures.
+	- Sort initial providers list by default preference (#1145, #2024)
+	- Improve provider sorting so prefered versions have preference over latest versions (#768)
+	- Detect builds of tasks with overlapping providers and warn (will become a fatal error) (#1359)
+	- Add MULTI_PROVIDER_WHITELIST variable to allow known safe multiple providers to be listed
+	- Handle paths in svn fetcher module parameter
+	- Support the syntax "export VARIABLE"
+	- Add bzr fetcher
+	- Add support for cleaning directories before a task in the form:
+	  do_taskname[cleandirs] = "dir"
+	- bzr fetcher tweaks from Robert Schuster (#2913)
+	- Add mercurial (hg) fetcher from Robert Schuster (#2913)
+	- Don't add duplicates to BBPATH
+	- Fix preferred_version return values (providers.py)
+	- Fix 'depends' flag splitting
+	- Fix unexport handling (#3135)
+	- Add bb.copyfile function similar to bb.movefile (and improve movefile error reporting)
+	- Allow multiple options for deptask flag
+	- Use git-fetch instead of git-pull removing any need for merges when 
+	  fetching (we don't care about the index). Fixes fetch errors.
+	- Add BB_GENERATE_MIRROR_TARBALLS option, set to 0 to make git fetches 
+	  faster at the expense of not creating mirror tarballs.
+	- SRCREV handling updates, improvements and fixes from Poky
+	- Add bb.utils.lockfile() and bb.utils.unlockfile() from Poky
+	- Add support for task selfstamp and lockfiles flags
+	- Disable task number acceleration since it can allow the tasks to run 
+	  out of sequence
+	- Improve runqueue code comments
+	- Add task scheduler abstraction and some example schedulers
+	- Improve circular dependency chain debugging code and user feedback
+	- Don't give a stacktrace for invalid tasks, have a user friendly message (#3431)
+	- Add support for "-e target" (#3432)
+	- Fix shell showdata command (#3259)
+	- Fix shell data updating problems (#1880)
+	- Properly raise errors for invalid source URI protocols
+	- Change the wget fetcher failure handling to avoid lockfile problems
+	- Add support for branches in git fetcher (Otavio Salvador, Michael Lauer)
+	- Make taskdata and runqueue errors more user friendly
+	- Add norecurse and fullpath options to cvs fetcher
+	- Fix exit code for build failures in --continue mode
+	- Fix git branch tags fetching
+	- Change parseConfigurationFile so it works on real data, not a copy
+	- Handle 'base' inherit and all other INHERITs from parseConfigurationFile 
+	  instead of BBHandler
+	- Fix getVarFlags bug in data_smart
+	- Optmise cache handling by more quickly detecting an invalid cache, only 
+	  saving the cache when its changed, moving the cache validity check into
+	  the parsing loop and factoring some getVar calls outside a for loop
+	- Cooker: Remove a debug message from the parsing loop to lower overhead
+	- Convert build.py exec_task to use getVarFlags
+	- Update shell to use cooker.buildFile
+	- Add StampUpdate event
+	- Convert -b option to use taskdata/runqueue
+	- Remove digraph and switch to new stamp checking code. exec_task no longer
+	  honours dependencies
+	- Make fetcher timestamp updating non-fatal when permissions don't allow 
+	  updates
+	- Add BB_SCHEDULER variable/option ("completion" or "speed") controlling
+	  the way bitbake schedules tasks
+	- Add BB_STAMP_POLICY variable/option ("perfile" or "full") controlling
+	  how extensively stamps are looked at for validity
+	- When handling build target failures make sure idepends are checked and
+	  failed where needed. Fixes --continue mode crashes.
+	- Fix -f (force) in conjunction with -b
+	- Fix problems with recrdeptask handling where some idepends weren't handled
+	  correctly.
+	- Handle exit codes correctly (from pH5)
+	- Work around refs/HEAD issues with git over http (#3410)
+	- Add proxy support to the CVS fetcher (from Cyril Chemparathy)
+	- Improve runfetchcmd so errors are seen and various GIT variables are exported
+	- Add ability to fetchers to check URL validity without downloading
+	- Improve runtime PREFERRED_PROVIDERS warning message
+	- Add BB_STAMP_WHITELIST option which contains a list of stamps to ignore when
+	  checking stamp dependencies and using a BB_STAMP_POLICY of "whitelist"
+	- No longer weight providers on the basis of a package being "already staged". This
+	  leads to builds being non-deterministic.
+	- Flush stdout/stderr before forking to fix duplicate console output
+	- Make sure recrdeps tasks include all inter-task dependencies of a given fn
+	- Add bb.runqueue.check_stamp_fn() for use by packaged-staging
+	- Add PERSISTENT_DIR to store the PersistData in a persistent
+	  directory != the cache dir.
+	- Add md5 and sha256 checksum generation functions to utils.py
+	- Correctly handle '-' characters in class names (#2958)
+	- Make sure expandKeys has been called on the data dictionary before running tasks
+	- Correctly add a task override in the form task-TASKNAME.
+	- Revert the '-' character fix in class names since it breaks things
+	- When a regexp fails to compile for PACKAGES_DYNAMIC, print a more useful error (#4444)
+	- Allow to checkout CVS by Date and Time. Just add HHmm to the SRCDATE.
+	- Move prunedir function to utils.py and add explode_dep_versions function
+	- Raise an exception if SRCREV == 'INVALID'
+	- Fix hg fetcher username/password handling and fix crash
+	- Fix PACKAGES_DYNAMIC handling of packages with '++' in the name
+	- Rename __depends to __base_depends after configuration parsing so we don't
+	  recheck the validity of the config files time after time
+	- Add better environmental variable handling. By default it will now only pass certain 
+	  whitelisted variables into the data store. If BB_PRESERVE_ENV is set bitbake will use
+	  all variable from the environment. If BB_ENV_WHITELIST is set, that whitelist will be
+	  used instead of the internal bitbake one. Alternatively, BB_ENV_EXTRAWHITE can be used
+	  to extend the internal whitelist.
+	- Perforce fetcher fix to use commandline options instead of being overriden by the environment
+	- bb.utils.prunedir can cope with symlinks to directoriees without exceptions
+	- use @rev when doing a svn checkout
+	- Add osc fetcher (from Joshua Lock in Poky)
+	- When SRCREV autorevisioning for a recipe is in use, don't cache the recipe
+	- Add tryaltconfigs option to control whether bitbake trys using alternative providers
+	  to fulfil failed dependencies. It defaults to off, changing the default since this
+	  behaviour confuses many users and isn't often useful.
+	- Improve lock file function error handling
+	- Add username handling to the git fetcher (Robert Bragg)
+	- Add support for HTTP_PROXY and HTTP_PROXY_IGNORE variables to the wget fetcher
+	- Export more variables to the fetcher commands to allow ssh checkouts and checkouts through 
+	  proxies to work better. (from Poky)
+	- Also allow user and pswd options in SRC_URIs globally (from Poky)
+	- Improve proxy handling when using mirrors (from Poky)
+	- Add bb.utils.prune_suffix function
+	- Fix hg checkouts of specific revisions (from Poky)
+	- Fix wget fetching of urls with parameters specified (from Poky)
+	- Add username handling to git fetcher (from Poky)
+	- Set HOME environmental variable when running fetcher commands (from Poky)
+	- Make sure allowed variables inherited from the environment are exported again (from Poky)
+	- When running a stage task in bbshell, run populate_staging, not the stage task (from Poky)
+	- Fix + character escaping from PACKAGES_DYNAMIC (thanks Otavio Salvador)
+	- Addition of BBCLASSEXTEND support for allowing one recipe to provide multiple targets (from Poky)
+
+Changes in Bitbake 1.8.0:
+	- Release 1.7.x as a stable series
+
+Changes in BitBake 1.7.x:
+	- Major updates of the dependency handling and execution
+	  of tasks. Code from bin/bitbake replaced with runqueue.py
+	  and taskdata.py
+	- New task execution code supports multithreading with a simplistic
+	  threading algorithm controlled by BB_NUMBER_THREADS
+	- Change of the SVN Fetcher to keep the checkout around
+	  courtsey of Paul Sokolovsky (#1367)
+	- PATH fix to bbimage (#1108)
+	- Allow debug domains to be specified on the commandline (-l)
+	- Allow 'interactive' tasks
+	- Logging message improvements
+	- Drop now uneeded BUILD_ALL_DEPS variable
+	- Add support for wildcards to -b option
+	- Major overhaul of the fetchers making a large amount of code common
+	  including mirroring code
+	- Fetchers now touch md5 stamps upon access (to show activity)
+	- Fix -f force option when used without -b (long standing bug)
+	- Add expand_cache to data_cache.py, caching expanded data (speedup)
+	- Allow version field in DEPENDS (ignored for now)
+	- Add abort flag support to the shell
+	- Make inherit fail if the class doesn't exist (#1478)
+	- Fix data.emit_env() to expand keynames as well as values
+	- Add ssh fetcher
+	- Add perforce fetcher
+	- Make PREFERRED_PROVIDER_foobar defaults to foobar if available
+	- Share the parser's mtime_cache, reducing the number of stat syscalls
+	- Compile all anonfuncs at once! 
+	  *** Anonfuncs must now use common spacing format ***
+	- Memorise the list of handlers in __BBHANDLERS and tasks in __BBTASKS
+	  This removes 2 million function calls resulting in a 5-10% speedup
+	- Add manpage
+	- Update generateDotGraph to use taskData/runQueue improving accuracy
+	  and also adding a task dependency graph
+	- Fix/standardise on GPLv2 licence
+	- Move most functionality from bin/bitbake to cooker.py and split into
+	  separate funcitons
+	- CVS fetcher: Added support for non-default port
+	- Add BBINCLUDELOGS_LINES, the number of lines to read from any logfile
+	- Drop shebangs from lib/bb scripts
+
+Changes in Bitbake 1.6.0:
+	- Better msg handling
+	- COW dict implementation from Tim Ansell (mithro) leading
+	  to better performance
+	- Speed up of -s
+
+Changes in Bitbake 1.4.4:
+	- SRCDATE now handling courtsey Justin Patrin
+	- #1017 fix to work with rm_work
+
+Changes in BitBake 1.4.2:
+	- Send logs to oe.pastebin.com instead of pastebin.com
+	  fixes #856
+	- Copy the internal bitbake data before building the
+	  dependency graph. This fixes nano not having a
+	  virtual/libc dependency
+	- Allow multiple TARBALL_STASH entries
+	- Cache, check if the directory exists before changing
+	  into it
+	- git speedup cloning by not doing a checkout
+	- allow to have spaces in filenames (.conf, .bb, .bbclass)
+
+Changes in BitBake 1.4.0:
+	- Fix to check both RDEPENDS and RDEPENDS_${PN}
+	- Fix a RDEPENDS parsing bug in utils:explode_deps()
+	- Update git fetcher behaviour to match git changes
+	- ASSUME_PROVIDED allowed to include runtime packages
+	- git fetcher cleanup and efficency improvements
+	- Change the format of the cache
+	- Update usermanual to document the Fetchers
+	- Major changes to caching with a new strategy
+	  giving a major performance increase when reparsing
+	  with few data changes
+
+Changes in BitBake 1.3.3:
+	- Create a new Fetcher module to ease the
+	  development of new Fetchers.
+	  Issue #438 fixed by rpurdie@openedhand.com
+	- Make the Subversion fetcher honor the SRC Date
+	  (CVSDATE).
+	  Issue #555 fixed by chris@openedhand.com
+	- Expand PREFERRED_PROVIDER properly
+	  Issue #436 fixed by rprudie@openedhand.com
+	- Typo fix for Issue #531 by Philipp Zabel for the
+	  BitBake Shell
+	- Introduce a new special variable SRCDATE as
+	  a generic naming to replace CVSDATE.
+	- Introduce a new keyword 'required'. In contrast
+	  to 'include' parsing will fail if a to be included
+	  file can not be found.
+	- Remove hardcoding of the STAMP directory. Patch
+	  courtsey pHilipp Zabel
+	- Track the RDEPENDS of each package (rpurdie@openedhand.com)
+	- Introduce BUILD_ALL_DEPS to build all RDEPENDS. E.g
+	  this is used by the OpenEmbedded Meta Packages.
+	  (rpurdie@openedhand.com).
+
+Changes in BitBake 1.3.2:
+	- reintegration of make.py into BitBake
+	- bbread is gone, use bitbake -e
+	- lots of shell updates and bugfixes
+	- Introduction of the .= and =. operator
+	- Sort variables, keys and groups in bitdoc
+	- Fix regression in the handling of BBCOLLECTIONS
+	- Update the bitbake usermanual
+
+Changes in BitBake 1.3.0:
+	- add bitbake interactive shell (bitbake -i)
+	- refactor bitbake utility in OO style
+	- kill default arguments in methods in the bb.data module
+	- kill default arguments in methods in the bb.fetch module
+	- the http/https/ftp fetcher will fail if the to be 
+	  downloaded file was not found in DL_DIR (this is needed
+	  to avoid unpacking the sourceforge mirror page)
+	- Switch to a cow like data instance for persistent and non
+	  persisting mode (called data_smart.py)
+	- Changed the callback of bb.make.collect_bbfiles to carry
+	  additional parameters
+	- Drastically reduced the amount of needed RAM by not holding
+	  each data instance in memory when using a cache/persistent
+	  storage
+
+Changes in BitBake 1.2.1:
+	The 1.2.1 release is meant as a intermediate release to lay the
+	ground for more radical changes. The most notable changes are:
+
+	- Do not hardcode {}, use bb.data.init() instead if you want to
+	  get a instance of a data class
+	- bb.data.init() is a factory and the old bb.data methods are delegates
+	- Do not use deepcopy use bb.data.createCopy() instead.
+	- Removed default arguments in bb.fetch
+

bitbake/HEADER

@@ -0,0 +1,19 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# <one line to give the program's name and a brief idea of what it does.>
+# Copyright (C) <year>  <name of author>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+

bitbake/LICENSE

@@ -0,0 +1,19 @@
+BitBake is licensed under the GNU General Public License version 2.0. See COPYING for further details.
+
+The following external components are distributed with this software:
+
+* The Toaster Simple UI application is based upon the Django project template, the files of which are covered by the BSD license and are copyright (c) Django Software
+Foundation and individual contributors.
+
+* Twitter Bootstrap (including Glyphicons), redistributed under the MIT license
+* jQuery is redistributed under the MIT license.
+
+* Twitter typeahead.js redistributed under the MIT license. Note that the JS source has one small modification, so the full unminified file is currently included to make it obvious where this is.
+
+* jsrender is redistributed under the MIT license.
+
+* QUnit is redistributed under the MIT license.
+
+* Font Awesome fonts redistributed under the SIL Open Font License 1.1
+
+* simplediff is distributed under the zlib license.

bitbake/README

@@ -0,0 +1,35 @@
+Bitbake
+=======
+
+BitBake is a generic task execution engine that allows shell and Python tasks to be run
+efficiently and in parallel while working within complex inter-task dependency constraints.
+One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software
+stacks using a task-oriented approach.
+
+For information about Bitbake, see the OpenEmbedded website:
+    http://www.openembedded.org/
+
+Bitbake plain documentation can be found under the doc directory or its integrated
+html version at the Yocto Project website:
+    http://yoctoproject.org/documentation
+
+Contributing
+------------
+
+Please refer to
+http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
+for guidelines on how to submit patches, just note that the latter documentation is intended
+for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org)
+but in general main guidelines apply. Once the commit(s) have been created, the way to send
+the patch is through git-send-email. For example, to send the last commit (HEAD) on current
+branch, type:
+
+    git send-email -M -1 --to bitbake-devel@lists.openembedded.org
+
+Mailing list:
+
+    http://lists.openembedded.org/mailman/listinfo/bitbake-devel
+
+Source code:
+
+    http://git.openembedded.org/bitbake/

bitbake/bin/bitbake

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2003, 2004  Phil Blundell
+# Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
+# Copyright (C) 2005        Holger Hans Peter Freyther
+# Copyright (C) 2005        ROAD GmbH
+# Copyright (C) 2006        Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys
+
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)),
+                                'lib'))
+try:
+    import bb
+except RuntimeError as exc:
+    sys.exit(str(exc))
+
+from bb import cookerdata
+from bb.main import bitbake_main, BitBakeConfigParameters, BBMainException
+
+if sys.getfilesystemencoding() != "utf-8":
+    sys.exit("Please use a locale setting which supports UTF-8 (such as LANG=en_US.UTF-8).\nPython can't change the filesystem locale after loading so we need a UTF-8 when Python starts or things won't work.")
+
+__version__ = "1.36.0"
+
+if __name__ == "__main__":
+    if __version__ != bb.__version__:
+        sys.exit("Bitbake core version and program version mismatch!")
+    try:
+        sys.exit(bitbake_main(BitBakeConfigParameters(sys.argv),
+                              cookerdata.CookerConfiguration()))
+    except BBMainException as err:
+        sys.exit(err)
+    except bb.BBHandledException:
+        sys.exit(1)
+    except Exception:
+        import traceback
+        traceback.print_exc()
+        sys.exit(1)

bitbake/bin/bitbake-diffsigs

@@ -0,0 +1,183 @@
+#!/usr/bin/env python3
+
+# bitbake-diffsigs
+# BitBake task signature data comparison utility
+#
+# Copyright (C) 2012-2013, 2017 Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys
+import warnings
+import fnmatch
+import argparse
+import logging
+import pickle
+
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
+
+import bb.tinfoil
+import bb.siggen
+import bb.msg
+
+logger = bb.msg.logger_create('bitbake-diffsigs')
+
+def find_siginfo(tinfoil, pn, taskname, sigs=None):
+    result = None
+    tinfoil.set_event_mask(['bb.event.FindSigInfoResult',
+                            'logging.LogRecord',
+                            'bb.command.CommandCompleted',
+                            'bb.command.CommandFailed'])
+    ret = tinfoil.run_command('findSigInfo', pn, taskname, sigs)
+    if ret:
+        while True:
+            event = tinfoil.wait_event(1)
+            if event:
+                if isinstance(event, bb.command.CommandCompleted):
+                    break
+                elif isinstance(event, bb.command.CommandFailed):
+                    logger.error(str(event))
+                    sys.exit(2)
+                elif isinstance(event, bb.event.FindSigInfoResult):
+                    result = event.result
+                elif isinstance(event, logging.LogRecord):
+                    logger.handle(event)
+    else:
+        logger.error('No result returned from findSigInfo command')
+        sys.exit(2)
+    return result
+
+def find_compare_task(bbhandler, pn, taskname, sig1=None, sig2=None, color=False):
+    """ Find the most recent signature files for the specified PN/task and compare them """
+
+    if not taskname.startswith('do_'):
+        taskname = 'do_%s' % taskname
+
+    if sig1 and sig2:
+        sigfiles = find_siginfo(bbhandler, pn, taskname, [sig1, sig2])
+        if len(sigfiles) == 0:
+            logger.error('No sigdata files found matching %s %s matching either %s or %s' % (pn, taskname, sig1, sig2))
+            sys.exit(1)
+        elif not sig1 in sigfiles:
+            logger.error('No sigdata files found matching %s %s with signature %s' % (pn, taskname, sig1))
+            sys.exit(1)
+        elif not sig2 in sigfiles:
+            logger.error('No sigdata files found matching %s %s with signature %s' % (pn, taskname, sig2))
+            sys.exit(1)
+        latestfiles = [sigfiles[sig1], sigfiles[sig2]]
+    else:
+        filedates = find_siginfo(bbhandler, pn, taskname)
+        latestfiles = sorted(filedates.keys(), key=lambda f: filedates[f])[-3:]
+        if not latestfiles:
+            logger.error('No sigdata files found matching %s %s' % (pn, taskname))
+            sys.exit(1)
+        elif len(latestfiles) < 2:
+            logger.error('Only one matching sigdata file found for the specified task (%s %s)' % (pn, taskname))
+            sys.exit(1)
+
+    # Define recursion callback
+    def recursecb(key, hash1, hash2):
+        hashes = [hash1, hash2]
+        hashfiles = find_siginfo(bbhandler, key, None, hashes)
+
+        recout = []
+        if len(hashfiles) == 0:
+            recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
+        elif not hash1 in hashfiles:
+            recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash1))
+        elif not hash2 in hashfiles:
+            recout.append("Unable to find matching sigdata for %s with hash %s" % (key, hash2))
+        else:
+            out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb, color=color)
+            for change in out2:
+                for line in change.splitlines():
+                    recout.append('  ' + line)
+
+        return recout
+
+    # Recurse into signature comparison
+    logger.debug("Signature file (previous): %s" % latestfiles[-2])
+    logger.debug("Signature file (latest): %s" % latestfiles[-1])
+    output = bb.siggen.compare_sigfiles(latestfiles[-2], latestfiles[-1], recursecb, color=color)
+    if output:
+        print('\n'.join(output))
+    sys.exit(0)
+
+
+
+parser = argparse.ArgumentParser(
+    description="Compares siginfo/sigdata files written out by BitBake")
+
+parser.add_argument('-d', '--debug',
+                    help='Enable debug output',
+                    action='store_true')
+
+parser.add_argument('--color',
+        help='Colorize output (where %(metavar)s is %(choices)s)',
+        choices=['auto', 'always', 'never'], default='auto', metavar='color')
+
+parser.add_argument("-t", "--task",
+        help="find the signature data files for last two runs of the specified task and compare them",
+        action="store", dest="taskargs", nargs=2, metavar=('recipename', 'taskname'))
+
+parser.add_argument("-s", "--signature",
+        help="With -t/--task, specify the signatures to look for instead of taking the last two",
+        action="store", dest="sigargs", nargs=2, metavar=('fromsig', 'tosig'))
+
+parser.add_argument("sigdatafile1",
+        help="First signature file to compare (or signature file to dump, if second not specified). Not used when using -t/--task.",
+        action="store", nargs='?')
+
+parser.add_argument("sigdatafile2",
+        help="Second signature file to compare",
+        action="store", nargs='?')
+
+
+options = parser.parse_args()
+
+if options.debug:
+    logger.setLevel(logging.DEBUG)
+
+color = (options.color == 'always' or (options.color == 'auto' and sys.stdout.isatty()))
+
+if options.taskargs:
+    with bb.tinfoil.Tinfoil() as tinfoil:
+        tinfoil.prepare(config_only=True)
+        if options.sigargs:
+            find_compare_task(tinfoil, options.taskargs[0], options.taskargs[1], options.sigargs[0], options.sigargs[1], color=color)
+        else:
+            find_compare_task(tinfoil, options.taskargs[0], options.taskargs[1], color=color)
+else:
+    if options.sigargs:
+        logger.error('-s/--signature can only be used together with -t/--task')
+        sys.exit(1)
+    try:
+        if options.sigdatafile1 and options.sigdatafile2:
+            output = bb.siggen.compare_sigfiles(options.sigdatafile1, options.sigdatafile2, color=color)
+        elif options.sigdatafile1:
+            output = bb.siggen.dump_sigfile(options.sigdatafile1)
+        else:
+            logger.error('Must specify signature file(s) or -t/--task')
+            parser.print_help()
+            sys.exit(1)
+    except IOError as e:
+        logger.error(str(e))
+        sys.exit(1)
+    except (pickle.UnpicklingError, EOFError):
+        logger.error('Invalid signature data - ensure you are specifying sigdata/siginfo files')
+        sys.exit(1)
+
+    if output:
+        print('\n'.join(output))

bitbake/bin/bitbake-dumpsig

@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+
+# bitbake-dumpsig
+# BitBake task signature dump utility
+#
+# Copyright (C) 2013 Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys
+import warnings
+import optparse
+import logging
+import pickle
+
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
+
+import bb.tinfoil
+import bb.siggen
+import bb.msg
+
+logger = bb.msg.logger_create('bitbake-dumpsig')
+
+def find_siginfo_task(bbhandler, pn, taskname):
+    """ Find the most recent signature file for the specified PN/task """
+
+    if not hasattr(bb.siggen, 'find_siginfo'):
+        logger.error('Metadata does not support finding signature data files')
+        sys.exit(1)
+
+    if not taskname.startswith('do_'):
+        taskname = 'do_%s' % taskname
+
+    filedates = bb.siggen.find_siginfo(pn, taskname, None, bbhandler.config_data)
+    latestfiles = sorted(filedates.keys(), key=lambda f: filedates[f])[-1:]
+    if not latestfiles:
+        logger.error('No sigdata files found matching %s %s' % (pn, taskname))
+        sys.exit(1)
+
+    return latestfiles[0]
+
+parser = optparse.OptionParser(
+    description = "Dumps siginfo/sigdata files written out by BitBake",
+    usage = """
+  %prog -t recipename taskname
+  %prog sigdatafile""")
+
+parser.add_option("-D", "--debug",
+        help = "enable debug",
+        action = "store_true", dest="debug", default = False)
+
+parser.add_option("-t", "--task",
+        help = "find the signature data file for the specified task",
+        action="store", dest="taskargs", nargs=2, metavar='recipename taskname')
+
+options, args = parser.parse_args(sys.argv)
+
+if options.debug:
+    logger.setLevel(logging.DEBUG)
+
+if options.taskargs:
+    tinfoil = bb.tinfoil.Tinfoil()
+    tinfoil.prepare(config_only = True)
+    file = find_siginfo_task(tinfoil, options.taskargs[0], options.taskargs[1])
+    logger.debug("Signature file: %s" % file)
+elif len(args) == 1:
+    parser.print_help()
+    sys.exit(0)
+else:
+    file = args[1]
+
+try:
+    output = bb.siggen.dump_sigfile(file)
+except IOError as e:
+    logger.error(str(e))
+    sys.exit(1)
+except (pickle.UnpicklingError, EOFError):
+    logger.error('Invalid signature data - ensure you are specifying a sigdata/siginfo file')
+    sys.exit(1)
+
+if output:
+    print('\n'.join(output))

bitbake/bin/bitbake-layers

@@ -0,0 +1,110 @@
+#!/usr/bin/env python3
+
+# This script has subcommands which operate against your bitbake layers, either
+# displaying useful information, or acting against them.
+# See the help output for details on available commands.
+
+# Copyright (C) 2011 Mentor Graphics Corporation
+# Copyright (C) 2011-2015 Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import logging
+import os
+import sys
+import argparse
+import signal
+
+bindir = os.path.dirname(__file__)
+topdir = os.path.dirname(bindir)
+sys.path[0:0] = [os.path.join(topdir, 'lib')]
+
+import bb.tinfoil
+import bb.msg
+
+logger = bb.msg.logger_create('bitbake-layers', sys.stdout)
+
+def main():
+    signal.signal(signal.SIGPIPE, signal.SIG_DFL)
+    parser = argparse.ArgumentParser(
+        description="BitBake layers utility",
+        epilog="Use %(prog)s <subcommand> --help to get help on a specific command",
+        add_help=False)
+    parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true')
+    parser.add_argument('-q', '--quiet', help='Print only errors', action='store_true')
+    parser.add_argument('-F', '--force', help='Force add without recipe parse verification', action='store_true')
+    parser.add_argument('--color', choices=['auto', 'always', 'never'], default='auto', help='Colorize output (where %(metavar)s is %(choices)s)', metavar='COLOR')
+
+    global_args, unparsed_args = parser.parse_known_args()
+
+    # Help is added here rather than via add_help=True, as we don't want it to
+    # be handled by parse_known_args()
+    parser.add_argument('-h', '--help', action='help', default=argparse.SUPPRESS,
+                        help='show this help message and exit')
+    subparsers = parser.add_subparsers(title='subcommands', metavar='<subcommand>')
+    subparsers.required = True
+
+    if global_args.debug:
+        logger.setLevel(logging.DEBUG)
+    elif global_args.quiet:
+        logger.setLevel(logging.ERROR)
+
+    # Need to re-run logger_create with color argument
+    # (will be the same logger since it has the same name)
+    bb.msg.logger_create('bitbake-layers', output=sys.stdout, color=global_args.color)
+
+    plugins = []
+    tinfoil = bb.tinfoil.Tinfoil(tracking=True)
+    tinfoil.logger.setLevel(logger.getEffectiveLevel())
+    try:
+        tinfoil.prepare(True)
+        for path in ([topdir] +
+                    tinfoil.config_data.getVar('BBPATH').split(':')):
+            pluginpath = os.path.join(path, 'lib', 'bblayers')
+            bb.utils.load_plugins(logger, plugins, pluginpath)
+
+        registered = False
+        for plugin in plugins:
+            if hasattr(plugin, 'register_commands'):
+                registered = True
+                plugin.register_commands(subparsers)
+            if hasattr(plugin, 'tinfoil_init'):
+                plugin.tinfoil_init(tinfoil)
+
+        if not registered:
+            logger.error("No commands registered - missing plugins?")
+            sys.exit(1)
+
+        args = parser.parse_args(unparsed_args, namespace=global_args)
+
+        if getattr(args, 'parserecipes', False):
+            tinfoil.config_data.disableTracking()
+            tinfoil.parse_recipes()
+            tinfoil.config_data.enableTracking()
+
+        return args.func(args)
+    finally:
+        tinfoil.shutdown()
+
+
+if __name__ == "__main__":
+    try:
+        ret = main()
+    except bb.BBHandledException:
+        ret = 1
+    except Exception:
+        ret = 1
+        import traceback
+        traceback.print_exc()
+    sys.exit(ret)

bitbake/bin/bitbake-prserv

@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+import os
+import sys,logging
+import optparse
+
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)),'lib'))
+
+import prserv
+import prserv.serv
+
+__version__="1.0.0"
+
+PRHOST_DEFAULT='0.0.0.0'
+PRPORT_DEFAULT=8585
+
+def main():
+    parser = optparse.OptionParser(
+        version="Bitbake PR Service Core version %s, %%prog version %s" % (prserv.__version__, __version__),
+        usage = "%prog < --start | --stop > [options]")
+
+    parser.add_option("-f", "--file", help="database filename(default: prserv.sqlite3)", action="store",
+                      dest="dbfile", type="string", default="prserv.sqlite3")
+    parser.add_option("-l", "--log", help="log filename(default: prserv.log)", action="store",
+                      dest="logfile", type="string", default="prserv.log")
+    parser.add_option("--loglevel", help="logging level, i.e. CRITICAL, ERROR, WARNING, INFO, DEBUG",
+                      action = "store", type="string", dest="loglevel", default = "INFO")
+    parser.add_option("--start", help="start daemon",
+                      action="store_true", dest="start")
+    parser.add_option("--stop", help="stop daemon",
+                      action="store_true", dest="stop")
+    parser.add_option("--host", help="ip address to bind", action="store",
+                      dest="host", type="string", default=PRHOST_DEFAULT)
+    parser.add_option("--port", help="port number(default: 8585)", action="store",
+                      dest="port", type="int", default=PRPORT_DEFAULT)
+
+    options, args = parser.parse_args(sys.argv)
+    prserv.init_logger(os.path.abspath(options.logfile),options.loglevel)
+
+    if options.start:
+        ret=prserv.serv.start_daemon(options.dbfile, options.host, options.port,os.path.abspath(options.logfile))
+    elif options.stop:
+        ret=prserv.serv.stop_daemon(options.host, options.port)
+    else:
+        ret=parser.print_help()
+    return ret
+
+if __name__ == "__main__":
+    try:
+        ret = main()
+    except Exception:
+        ret = 1
+        import traceback
+        traceback.print_exc()
+    sys.exit(ret)
+

bitbake/bin/bitbake-selftest

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2012 Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys, logging
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)), 'lib'))
+
+import unittest
+try:
+    import bb
+except RuntimeError as exc:
+    sys.exit(str(exc))
+
+tests = ["bb.tests.codeparser",
+         "bb.tests.cow",
+         "bb.tests.data",
+         "bb.tests.event",
+         "bb.tests.fetch",
+         "bb.tests.parse",
+         "bb.tests.utils"]
+
+for t in tests:
+    t = '.'.join(t.split('.')[:3])
+    __import__(t)
+
+
+# Set-up logging
+class StdoutStreamHandler(logging.StreamHandler):
+    """Special handler so that unittest is able to capture stdout"""
+    def __init__(self):
+        # Override __init__() because we don't want to set self.stream here
+        logging.Handler.__init__(self)
+
+    @property
+    def stream(self):
+        # We want to dynamically write wherever sys.stdout is pointing to
+        return sys.stdout
+
+
+handler = StdoutStreamHandler()
+bb.logger.addHandler(handler)
+bb.logger.setLevel(logging.DEBUG)
+
+
+ENV_HELP = """\
+Environment variables:
+  BB_SKIP_NETTESTS      set to 'yes' in order to skip tests using network
+                        connection
+  BB_TMPDIR_NOCLEAN     set to 'yes' to preserve test tmp directories
+"""
+
+class main(unittest.main):
+    def _print_help(self, *args, **kwargs):
+        super(main, self)._print_help(*args, **kwargs)
+        print(ENV_HELP)
+
+
+if __name__ == '__main__':
+        main(defaultTest=tests, buffer=True)

bitbake/bin/bitbake-worker

@@ -0,0 +1,501 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import warnings
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
+from bb import fetch2
+import logging
+import bb
+import select
+import errno
+import signal
+import pickle
+import traceback
+import queue
+from multiprocessing import Lock
+from threading import Thread
+
+if sys.getfilesystemencoding() != "utf-8":
+    sys.exit("Please use a locale setting which supports UTF-8 (such as LANG=en_US.UTF-8).\nPython can't change the filesystem locale after loading so we need a UTF-8 when Python starts or things won't work.")
+
+# Users shouldn't be running this code directly
+if len(sys.argv) != 2 or not sys.argv[1].startswith("decafbad"):
+    print("bitbake-worker is meant for internal execution by bitbake itself, please don't use it standalone.")
+    sys.exit(1)
+
+profiling = False
+if sys.argv[1].startswith("decafbadbad"):
+    profiling = True
+    try:
+        import cProfile as profile
+    except:
+        import profile
+
+# Unbuffer stdout to avoid log truncation in the event
+# of an unorderly exit as well as to provide timely
+# updates to log files for use with tail
+try:
+    if sys.stdout.name == '<stdout>':
+        import fcntl
+        fl = fcntl.fcntl(sys.stdout.fileno(), fcntl.F_GETFL)
+        fl |= os.O_SYNC 
+        fcntl.fcntl(sys.stdout.fileno(), fcntl.F_SETFL, fl)
+        #sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
+except:
+    pass
+
+logger = logging.getLogger("BitBake")
+
+worker_pipe = sys.stdout.fileno()
+bb.utils.nonblockingfd(worker_pipe)
+# Need to guard against multiprocessing being used in child processes
+# and multiple processes trying to write to the parent at the same time
+worker_pipe_lock = None
+
+handler = bb.event.LogHandler()
+logger.addHandler(handler)
+
+if 0:
+    # Code to write out a log file of all events passing through the worker
+    logfilename = "/tmp/workerlogfile"
+    format_str = "%(levelname)s: %(message)s"
+    conlogformat = bb.msg.BBLogFormatter(format_str)
+    consolelog = logging.FileHandler(logfilename)
+    bb.msg.addDefaultlogFilter(consolelog)
+    consolelog.setFormatter(conlogformat)
+    logger.addHandler(consolelog)
+
+worker_queue = queue.Queue()
+
+def worker_fire(event, d):
+    data = b"<event>" + pickle.dumps(event) + b"</event>"
+    worker_fire_prepickled(data)
+
+def worker_fire_prepickled(event):
+    global worker_queue
+
+    worker_queue.put(event)
+
+#
+# We can end up with write contention with the cooker, it can be trying to send commands
+# and we can be trying to send event data back. Therefore use a separate thread for writing 
+# back data to cooker.
+#
+worker_thread_exit = False
+
+def worker_flush(worker_queue):
+    worker_queue_int = b""
+    global worker_pipe, worker_thread_exit
+
+    while True:
+        try:
+            worker_queue_int = worker_queue_int + worker_queue.get(True, 1)
+        except queue.Empty:
+            pass
+        while (worker_queue_int or not worker_queue.empty()):
+            try:
+                (_, ready, _) = select.select([], [worker_pipe], [], 1)
+                if not worker_queue.empty():
+                    worker_queue_int = worker_queue_int + worker_queue.get()
+                written = os.write(worker_pipe, worker_queue_int)
+                worker_queue_int = worker_queue_int[written:]
+            except (IOError, OSError) as e:
+                if e.errno != errno.EAGAIN and e.errno != errno.EPIPE:
+                    raise
+        if worker_thread_exit and worker_queue.empty() and not worker_queue_int:
+            return
+
+worker_thread = Thread(target=worker_flush, args=(worker_queue,))
+worker_thread.start()
+
+def worker_child_fire(event, d):
+    global worker_pipe
+    global worker_pipe_lock
+
+    data = b"<event>" + pickle.dumps(event) + b"</event>"
+    try:
+        worker_pipe_lock.acquire()
+        worker_pipe.write(data)
+        worker_pipe_lock.release()
+    except IOError:
+        sigterm_handler(None, None)
+        raise
+
+bb.event.worker_fire = worker_fire
+
+lf = None
+#lf = open("/tmp/workercommandlog", "w+")
+def workerlog_write(msg):
+    if lf:
+        lf.write(msg)
+        lf.flush()
+
+def sigterm_handler(signum, frame):
+    signal.signal(signal.SIGTERM, signal.SIG_DFL)
+    os.killpg(0, signal.SIGTERM)
+    sys.exit()
+
+def fork_off_task(cfg, data, databuilder, workerdata, fn, task, taskname, appends, taskdepdata, extraconfigdata, quieterrors=False, dry_run_exec=False):
+    # We need to setup the environment BEFORE the fork, since
+    # a fork() or exec*() activates PSEUDO...
+
+    envbackup = {}
+    fakeenv = {}
+    umask = None
+
+    taskdep = workerdata["taskdeps"][fn]
+    if 'umask' in taskdep and taskname in taskdep['umask']:
+        # umask might come in as a number or text string..
+        try:
+             umask = int(taskdep['umask'][taskname],8)
+        except TypeError:
+             umask = taskdep['umask'][taskname]
+
+    dry_run = cfg.dry_run or dry_run_exec
+
+    # We can't use the fakeroot environment in a dry run as it possibly hasn't been built
+    if 'fakeroot' in taskdep and taskname in taskdep['fakeroot'] and not dry_run:
+        envvars = (workerdata["fakerootenv"][fn] or "").split()
+        for key, value in (var.split('=') for var in envvars):
+            envbackup[key] = os.environ.get(key)
+            os.environ[key] = value
+            fakeenv[key] = value
+
+        fakedirs = (workerdata["fakerootdirs"][fn] or "").split()
+        for p in fakedirs:
+            bb.utils.mkdirhier(p)
+        logger.debug(2, 'Running %s:%s under fakeroot, fakedirs: %s' %
+                        (fn, taskname, ', '.join(fakedirs)))
+    else:
+        envvars = (workerdata["fakerootnoenv"][fn] or "").split()
+        for key, value in (var.split('=') for var in envvars):
+            envbackup[key] = os.environ.get(key)
+            os.environ[key] = value
+            fakeenv[key] = value
+
+    sys.stdout.flush()
+    sys.stderr.flush()
+
+    try:
+        pipein, pipeout = os.pipe()
+        pipein = os.fdopen(pipein, 'rb', 4096)
+        pipeout = os.fdopen(pipeout, 'wb', 0)
+        pid = os.fork()
+    except OSError as e:
+        logger.critical("fork failed: %d (%s)" % (e.errno, e.strerror))
+        sys.exit(1)
+
+    if pid == 0:
+        def child():
+            global worker_pipe
+            global worker_pipe_lock
+            pipein.close()
+
+            signal.signal(signal.SIGTERM, sigterm_handler)
+            # Let SIGHUP exit as SIGTERM
+            signal.signal(signal.SIGHUP, sigterm_handler)
+            bb.utils.signal_on_parent_exit("SIGTERM")
+
+            # Save out the PID so that the event can include it the
+            # events
+            bb.event.worker_pid = os.getpid()
+            bb.event.worker_fire = worker_child_fire
+            worker_pipe = pipeout
+            worker_pipe_lock = Lock()
+
+            # Make the child the process group leader and ensure no
+            # child process will be controlled by the current terminal
+            # This ensures signals sent to the controlling terminal like Ctrl+C
+            # don't stop the child processes.
+            os.setsid()
+            # No stdin
+            newsi = os.open(os.devnull, os.O_RDWR)
+            os.dup2(newsi, sys.stdin.fileno())
+
+            if umask:
+                os.umask(umask)
+
+            try:
+                bb_cache = bb.cache.NoCache(databuilder)
+                (realfn, virtual, mc) = bb.cache.virtualfn2realfn(fn)
+                the_data = databuilder.mcdata[mc]
+                the_data.setVar("BB_WORKERCONTEXT", "1")
+                the_data.setVar("BB_TASKDEPDATA", taskdepdata)
+                if cfg.limited_deps:
+                    the_data.setVar("BB_LIMITEDDEPS", "1")
+                the_data.setVar("BUILDNAME", workerdata["buildname"])
+                the_data.setVar("DATE", workerdata["date"])
+                the_data.setVar("TIME", workerdata["time"])
+                for varname, value in extraconfigdata.items():
+                    the_data.setVar(varname, value)
+
+                bb.parse.siggen.set_taskdata(workerdata["sigdata"])
+                ret = 0
+
+                the_data = bb_cache.loadDataFull(fn, appends)
+                the_data.setVar('BB_TASKHASH', workerdata["runq_hash"][task])
+
+                bb.utils.set_process_name("%s:%s" % (the_data.getVar("PN"), taskname.replace("do_", "")))
+
+                # exported_vars() returns a generator which *cannot* be passed to os.environ.update() 
+                # successfully. We also need to unset anything from the environment which shouldn't be there 
+                exports = bb.data.exported_vars(the_data)
+
+                bb.utils.empty_environment()
+                for e, v in exports:
+                    os.environ[e] = v
+
+                for e in fakeenv:
+                    os.environ[e] = fakeenv[e]
+                    the_data.setVar(e, fakeenv[e])
+                    the_data.setVarFlag(e, 'export', "1")
+
+                task_exports = the_data.getVarFlag(taskname, 'exports')
+                if task_exports:
+                    for e in task_exports.split():
+                        the_data.setVarFlag(e, 'export', '1')
+                        v = the_data.getVar(e)
+                        if v is not None:
+                            os.environ[e] = v
+
+                if quieterrors:
+                    the_data.setVarFlag(taskname, "quieterrors", "1")
+
+            except Exception:
+                if not quieterrors:
+                    logger.critical(traceback.format_exc())
+                os._exit(1)
+            try:
+                if dry_run:
+                    return 0
+                return bb.build.exec_task(fn, taskname, the_data, cfg.profile)
+            except:
+                os._exit(1)
+        if not profiling:
+            os._exit(child())
+        else:
+            profname = "profile-%s.log" % (fn.replace("/", "-") + "-" + taskname)
+            prof = profile.Profile()
+            try: 
+                ret = profile.Profile.runcall(prof, child)
+            finally:
+                prof.dump_stats(profname)
+                bb.utils.process_profilelog(profname)
+                os._exit(ret)
+    else:
+        for key, value in iter(envbackup.items()):
+            if value is None:
+                del os.environ[key]
+            else:
+                os.environ[key] = value
+
+    return pid, pipein, pipeout
+
+class runQueueWorkerPipe():
+    """
+    Abstraction for a pipe between a worker thread and the worker server
+    """
+    def __init__(self, pipein, pipeout):
+        self.input = pipein
+        if pipeout:
+            pipeout.close()
+        bb.utils.nonblockingfd(self.input)
+        self.queue = b""
+
+    def read(self):
+        start = len(self.queue)
+        try:
+            self.queue = self.queue + (self.input.read(102400) or b"")
+        except (OSError, IOError) as e:
+            if e.errno != errno.EAGAIN:
+                raise
+
+        end = len(self.queue)
+        index = self.queue.find(b"</event>")
+        while index != -1:
+            worker_fire_prepickled(self.queue[:index+8])
+            self.queue = self.queue[index+8:]
+            index = self.queue.find(b"</event>")
+        return (end > start)
+
+    def close(self):
+        while self.read():
+            continue
+        if len(self.queue) > 0:
+            print("Warning, worker child left partial message: %s" % self.queue)
+        self.input.close()
+
+normalexit = False
+
+class BitbakeWorker(object):
+    def __init__(self, din):
+        self.input = din
+        bb.utils.nonblockingfd(self.input)
+        self.queue = b""
+        self.cookercfg = None
+        self.databuilder = None
+        self.data = None
+        self.extraconfigdata = None
+        self.build_pids = {}
+        self.build_pipes = {}
+    
+        signal.signal(signal.SIGTERM, self.sigterm_exception)
+        # Let SIGHUP exit as SIGTERM
+        signal.signal(signal.SIGHUP, self.sigterm_exception)
+        if "beef" in sys.argv[1]:
+            bb.utils.set_process_name("Worker (Fakeroot)")
+        else:
+            bb.utils.set_process_name("Worker")
+
+    def sigterm_exception(self, signum, stackframe):
+        if signum == signal.SIGTERM:
+            bb.warn("Worker received SIGTERM, shutting down...")
+        elif signum == signal.SIGHUP:
+            bb.warn("Worker received SIGHUP, shutting down...")
+        self.handle_finishnow(None)
+        signal.signal(signal.SIGTERM, signal.SIG_DFL)
+        os.kill(os.getpid(), signal.SIGTERM)
+
+    def serve(self):        
+        while True:
+            (ready, _, _) = select.select([self.input] + [i.input for i in self.build_pipes.values()], [] , [], 1)
+            if self.input in ready:
+                try:
+                    r = self.input.read()
+                    if len(r) == 0:
+                        # EOF on pipe, server must have terminated
+                        self.sigterm_exception(signal.SIGTERM, None)
+                    self.queue = self.queue + r
+                except (OSError, IOError):
+                    pass
+            if len(self.queue):
+                self.handle_item(b"cookerconfig", self.handle_cookercfg)
+                self.handle_item(b"extraconfigdata", self.handle_extraconfigdata)
+                self.handle_item(b"workerdata", self.handle_workerdata)
+                self.handle_item(b"runtask", self.handle_runtask)
+                self.handle_item(b"finishnow", self.handle_finishnow)
+                self.handle_item(b"ping", self.handle_ping)
+                self.handle_item(b"quit", self.handle_quit)
+
+            for pipe in self.build_pipes:
+                if self.build_pipes[pipe].input in ready:
+                    self.build_pipes[pipe].read()
+            if len(self.build_pids):
+                while self.process_waitpid():
+                    continue
+
+
+    def handle_item(self, item, func):
+        if self.queue.startswith(b"<" + item + b">"):
+            index = self.queue.find(b"</" + item + b">")
+            while index != -1:
+                func(self.queue[(len(item) + 2):index])
+                self.queue = self.queue[(index + len(item) + 3):]
+                index = self.queue.find(b"</" + item + b">")
+
+    def handle_cookercfg(self, data):
+        self.cookercfg = pickle.loads(data)
+        self.databuilder = bb.cookerdata.CookerDataBuilder(self.cookercfg, worker=True)
+        self.databuilder.parseBaseConfiguration()
+        self.data = self.databuilder.data
+
+    def handle_extraconfigdata(self, data):
+        self.extraconfigdata = pickle.loads(data)
+
+    def handle_workerdata(self, data):
+        self.workerdata = pickle.loads(data)
+        bb.msg.loggerDefaultDebugLevel = self.workerdata["logdefaultdebug"]
+        bb.msg.loggerDefaultVerbose = self.workerdata["logdefaultverbose"]
+        bb.msg.loggerVerboseLogs = self.workerdata["logdefaultverboselogs"]
+        bb.msg.loggerDefaultDomains = self.workerdata["logdefaultdomain"]
+        for mc in self.databuilder.mcdata:
+            self.databuilder.mcdata[mc].setVar("PRSERV_HOST", self.workerdata["prhost"])
+
+    def handle_ping(self, _):
+        workerlog_write("Handling ping\n")
+
+        logger.warning("Pong from bitbake-worker!")
+
+    def handle_quit(self, data):
+        workerlog_write("Handling quit\n")
+
+        global normalexit
+        normalexit = True
+        sys.exit(0)
+
+    def handle_runtask(self, data):
+        fn, task, taskname, quieterrors, appends, taskdepdata, dry_run_exec = pickle.loads(data)
+        workerlog_write("Handling runtask %s %s %s\n" % (task, fn, taskname))
+
+        pid, pipein, pipeout = fork_off_task(self.cookercfg, self.data, self.databuilder, self.workerdata, fn, task, taskname, appends, taskdepdata, self.extraconfigdata, quieterrors, dry_run_exec)
+
+        self.build_pids[pid] = task
+        self.build_pipes[pid] = runQueueWorkerPipe(pipein, pipeout)
+
+    def process_waitpid(self):
+        """
+        Return none is there are no processes awaiting result collection, otherwise
+        collect the process exit codes and close the information pipe.
+        """
+        try:
+            pid, status = os.waitpid(-1, os.WNOHANG)
+            if pid == 0 or os.WIFSTOPPED(status):
+                return False
+        except OSError:
+            return False
+
+        workerlog_write("Exit code of %s for pid %s\n" % (status, pid))
+
+        if os.WIFEXITED(status):
+            status = os.WEXITSTATUS(status)
+        elif os.WIFSIGNALED(status):
+            # Per shell conventions for $?, when a process exits due to
+            # a signal, we return an exit code of 128 + SIGNUM
+            status = 128 + os.WTERMSIG(status)
+
+        task = self.build_pids[pid]
+        del self.build_pids[pid]
+
+        self.build_pipes[pid].close()
+        del self.build_pipes[pid]
+
+        worker_fire_prepickled(b"<exitcode>" + pickle.dumps((task, status)) + b"</exitcode>")
+
+        return True
+
+    def handle_finishnow(self, _):
+        if self.build_pids:
+            logger.info("Sending SIGTERM to remaining %s tasks", len(self.build_pids))
+            for k, v in iter(self.build_pids.items()):
+                try:
+                    os.kill(-k, signal.SIGTERM)
+                    os.waitpid(-1, 0)
+                except:
+                    pass
+        for pipe in self.build_pipes:
+            self.build_pipes[pipe].read()
+
+try:
+    worker = BitbakeWorker(os.fdopen(sys.stdin.fileno(), 'rb'))
+    if not profiling:
+        worker.serve()
+    else:
+        profname = "profile-worker.log"
+        prof = profile.Profile()
+        try:
+            profile.Profile.runcall(prof, worker.serve)
+        finally:
+            prof.dump_stats(profname)
+            bb.utils.process_profilelog(profname)
+except BaseException as e:
+    if not normalexit:
+        import traceback
+        sys.stderr.write(traceback.format_exc())
+        sys.stderr.write(str(e))
+
+worker_thread_exit = True
+worker_thread.join()
+
+workerlog_write("exitting")
+sys.exit(0)

bitbake/bin/bitdoc

@@ -0,0 +1,531 @@
+#!/usr/bin/env python3
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2005 Holger Hans Peter Freyther
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import optparse, os, sys
+
+# bitbake
+sys.path.append(os.path.join(os.path.dirname(os.path.dirname(__file__), 'lib'))
+import bb
+import bb.parse
+from   string import split, join
+
+__version__ = "0.0.2"
+
+class HTMLFormatter:
+    """
+    Simple class to help to generate some sort of HTML files. It is
+    quite inferior solution compared to docbook, gtkdoc, doxygen but it
+    should work for now.
+    We've a global introduction site (index.html) and then one site for
+    the list of keys (alphabetical sorted) and one for the list of groups,
+    one site for each key with links to the relations and groups.
+
+        index.html
+        all_keys.html
+        all_groups.html
+        groupNAME.html
+        keyNAME.html
+    """
+
+    def replace(self, text, *pairs):
+        """
+        From pydoc... almost identical at least
+        """
+        while pairs:
+            (a, b) = pairs[0]
+            text = join(split(text, a), b)
+            pairs = pairs[1:]
+        return text
+    def escape(self, text):
+        """
+        Escape string to be conform HTML
+        """
+        return self.replace(text, 
+                            ('&', '&'), 
+                            ('<', '&lt;' ),
+                            ('>', '&gt;' ) )
+    def createNavigator(self):
+        """
+        Create the navgiator
+        """
+        return """<table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
+<tr valign="middle">
+<td><a accesskey="g" href="index.html">Home</a></td>
+<td><a accesskey="n" href="all_groups.html">Groups</a></td>
+<td><a accesskey="u" href="all_keys.html">Keys</a></td>
+</tr></table>
+"""
+
+    def relatedKeys(self, item):
+        """
+        Create HTML to link to foreign keys
+        """
+
+        if len(item.related()) == 0:
+            return ""
+
+        txt = "<p><b>See also:</b><br>"
+        txts = []
+        for it in item.related():
+            txts.append("""<a href="key%(it)s.html">%(it)s</a>""" % vars() )
+
+        return txt + ",".join(txts)
+
+    def groups(self, item):
+        """
+        Create HTML to link to related groups
+        """
+
+        if len(item.groups()) == 0:
+            return ""
+
+
+        txt = "<p><b>See also:</b><br>"
+        txts = []
+        for group in item.groups():
+            txts.append( """<a href="group%s.html">%s</a> """ % (group, group) )
+
+        return txt + ",".join(txts)
+
+
+    def createKeySite(self, item):
+        """
+        Create a site for a key. It contains the header/navigator, a heading,
+        the description, links to related keys and to the groups.
+        """
+
+        return """<!doctype html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html><head><title>Key %s</title></head>
+<link rel="stylesheet" href="style.css" type="text/css">
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+%s
+<h2><span class="refentrytitle">%s</span></h2>
+
+<div class="refsynopsisdiv">
+<h2>Synopsis</h2>
+<p>
+%s
+</p>
+</div>
+
+<div class="refsynopsisdiv">
+<h2>Related Keys</h2>
+<p>
+%s
+</p>
+</div>
+
+<div class="refsynopsisdiv">
+<h2>Groups</h2>
+<p>
+%s
+</p>
+</div>
+
+
+</body>
+"""     % (item.name(), self.createNavigator(), item.name(), 
+           self.escape(item.description()), self.relatedKeys(item), self.groups(item))
+
+    def createGroupsSite(self, doc):
+        """
+        Create the Group Overview site
+        """
+
+        groups = ""
+        sorted_groups = sorted(doc.groups())
+        for group in sorted_groups:
+            groups += """<a href="group%s.html">%s</a><br>""" % (group, group)
+
+        return """<!doctype html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html><head><title>Group overview</title></head>
+<link rel="stylesheet" href="style.css" type="text/css">
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+%s
+<h2>Available Groups</h2>
+%s
+</body>
+""" % (self.createNavigator(), groups)
+
+    def createIndex(self):
+        """
+        Create the index file
+        """
+
+        return """<!doctype html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html><head><title>Bitbake Documentation</title></head>
+<link rel="stylesheet" href="style.css" type="text/css">
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+%s
+<h2>Documentation Entrance</h2>
+<a href="all_groups.html">All available groups</a><br>
+<a href="all_keys.html">All available keys</a><br>
+</body>
+""" % self.createNavigator()
+
+    def createKeysSite(self, doc):
+        """
+        Create Overview of all avilable keys
+        """
+        keys = ""
+        sorted_keys = sorted(doc.doc_keys())
+        for key in sorted_keys:
+            keys += """<a href="key%s.html">%s</a><br>""" % (key, key)
+
+        return """<!doctype html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html><head><title>Key overview</title></head>
+<link rel="stylesheet" href="style.css" type="text/css">
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+%s
+<h2>Available Keys</h2>
+%s
+</body>
+""" % (self.createNavigator(), keys)
+
+    def createGroupSite(self, gr, items, _description = None):
+        """
+        Create a site for a group:
+        Group the name of the group, items contain the name of the keys
+        inside this group
+        """
+        groups = ""
+        description = ""
+
+        # create a section with the group descriptions
+        if _description:
+            description  += "<h2 Description of Grozp %s</h2>" % gr
+            description  += _description
+
+        items.sort(lambda x, y:cmp(x.name(), y.name()))
+        for group in items:
+            groups += """<a href="key%s.html">%s</a><br>""" % (group.name(), group.name())
+
+        return """<!doctype html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html><head><title>Group %s</title></head>
+<link rel="stylesheet" href="style.css" type="text/css">
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+%s
+%s
+<div class="refsynopsisdiv">
+<h2>Keys in Group %s</h2>
+<pre class="synopsis">
+%s
+</pre>
+</div>
+</body>
+""" % (gr, self.createNavigator(), description, gr, groups)
+
+
+
+    def createCSS(self):
+        """
+        Create the CSS file
+        """
+        return """.synopsis, .classsynopsis
+{
+  background: #eeeeee;
+  border: solid 1px #aaaaaa;
+  padding: 0.5em;
+}
+.programlisting
+{
+  background: #eeeeff;
+  border: solid 1px #aaaaff;
+  padding: 0.5em;
+}
+.variablelist
+{
+  padding: 4px;
+  margin-left: 3em;
+}
+.variablelist td:first-child
+{
+  vertical-align: top;
+}
+table.navigation
+{
+  background: #ffeeee;
+  border: solid 1px #ffaaaa;
+  margin-top: 0.5em;
+  margin-bottom: 0.5em;
+}
+.navigation a
+{
+  color: #770000;
+}
+.navigation a:visited
+{
+  color: #550000;
+}
+.navigation .title
+{
+  font-size: 200%;
+}
+div.refnamediv
+{
+  margin-top: 2em;
+}
+div.gallery-float
+{
+  float: left;
+  padding: 10px;
+}
+div.gallery-float img
+{
+  border-style: none;
+}
+div.gallery-spacer
+{
+  clear: both;
+}
+a
+{
+  text-decoration: none;
+}
+a:hover
+{
+  text-decoration: underline;
+  color: #FF0000;
+}
+"""
+
+
+
+class DocumentationItem:
+    """
+    A class to hold information about a configuration
+    item. It contains the key name, description, a list of related names,
+    and the group this item is contained in.
+    """
+
+    def __init__(self):
+        self._groups  = []
+        self._related = []
+        self._name    = ""
+        self._desc    = ""
+
+    def groups(self):
+        return self._groups
+
+    def name(self):
+        return self._name
+
+    def description(self):
+        return self._desc
+
+    def related(self):
+        return self._related
+
+    def setName(self, name):
+        self._name = name
+
+    def setDescription(self, desc):
+        self._desc = desc
+
+    def addGroup(self, group):
+        self._groups.append(group)
+
+    def addRelation(self, relation):
+        self._related.append(relation)
+
+    def sort(self):
+        self._related.sort()
+        self._groups.sort()
+
+
+class Documentation:
+    """
+    Holds the documentation... with mappings from key to items...
+    """
+
+    def __init__(self):
+        self.__keys   = {}
+        self.__groups = {}
+
+    def insert_doc_item(self, item):
+        """
+        Insert the Doc Item into the internal list
+        of representation
+        """
+        item.sort()
+        self.__keys[item.name()] = item
+
+        for group in item.groups():
+            if not group in self.__groups:
+                self.__groups[group] = []
+            self.__groups[group].append(item)
+            self.__groups[group].sort()
+
+
+    def doc_item(self, key):
+        """
+        Return the DocumentationInstance describing the key
+        """
+        try:
+            return self.__keys[key]
+        except KeyError:
+            return None
+
+    def doc_keys(self):
+        """
+        Return the documented KEYS (names)
+        """
+        return self.__keys.keys()
+
+    def groups(self):
+        """
+        Return the names of available groups
+        """
+        return self.__groups.keys()
+
+    def group_content(self, group_name):
+        """
+        Return a list of keys/names that are in a specefic
+        group or the empty list
+        """
+        try:
+            return self.__groups[group_name]
+        except KeyError:
+            return []
+
+
+def parse_cmdline(args):
+    """
+    Parse the CMD line and return the result as a n-tuple
+    """
+
+    parser = optparse.OptionParser( version = "Bitbake Documentation Tool Core version %s, %%prog version %s" % (bb.__version__, __version__))
+    usage  = """%prog [options]
+
+Create a set of html pages (documentation) for a bitbake.conf....
+"""
+
+    # Add the needed options
+    parser.add_option( "-c", "--config", help = "Use the specified configuration file as source",
+                       action = "store", dest = "config", default = os.path.join("conf", "documentation.conf") )
+
+    parser.add_option( "-o", "--output", help = "Output directory for html files",
+                       action = "store", dest = "output", default = "html/" )
+
+    parser.add_option( "-D",  "--debug", help = "Increase the debug level",
+                       action = "count", dest = "debug", default = 0 )
+
+    parser.add_option( "-v", "--verbose", help = "output more chit-char to the terminal",
+                       action = "store_true", dest = "verbose", default = False )
+
+    options, args = parser.parse_args( sys.argv )
+ 
+    bb.msg.init_msgconfig(options.verbose, options.debug)
+
+    return options.config, options.output
+
+def main():
+    """
+    The main Method
+    """
+
+    (config_file, output_dir) = parse_cmdline( sys.argv )
+
+    # right to let us load the file now
+    try:
+        documentation = bb.parse.handle( config_file, bb.data.init() )
+    except IOError:
+        bb.fatal( "Unable to open %s" % config_file )
+    except bb.parse.ParseError:
+        bb.fatal( "Unable to parse %s" % config_file )
+
+    if isinstance(documentation, dict):
+        documentation = documentation[""]
+
+    # Assuming we've the file loaded now, we will initialize the 'tree'
+    doc = Documentation()
+
+    # defined states
+    state_begin = 0
+    state_see   = 1
+    state_group = 2
+
+    for key in bb.data.keys(documentation):
+        data   = documentation.getVarFlag(key, "doc", False)
+        if not data:
+            continue
+
+        # The Documentation now starts
+        doc_ins = DocumentationItem()
+        doc_ins.setName(key)
+
+
+        tokens = data.split(' ')
+        state = state_begin
+        string= ""
+        for token in tokens:
+            token = token.strip(',')
+
+            if not state == state_see and token == "@see":
+                state = state_see
+                continue
+            elif not state == state_group and token  == "@group":
+                state = state_group
+                continue
+
+            if state == state_begin:
+                string += " %s" % token
+            elif state == state_see:
+                doc_ins.addRelation(token)
+            elif state == state_group:
+                doc_ins.addGroup(token)
+
+        # set the description
+        doc_ins.setDescription(string)
+        doc.insert_doc_item(doc_ins)
+
+    # let us create the HTML now
+    bb.utils.mkdirhier(output_dir)
+    os.chdir(output_dir)
+
+    # Let us create the sites now. We do it in the following order
+    # Start with the index.html. It will point to sites explaining all
+    # keys and groups
+    html_slave = HTMLFormatter()
+
+    f = file('style.css', 'w')
+    print >> f, html_slave.createCSS()
+
+    f = file('index.html', 'w')
+    print >> f, html_slave.createIndex()
+
+    f = file('all_groups.html', 'w')
+    print >> f, html_slave.createGroupsSite(doc)
+
+    f = file('all_keys.html', 'w')
+    print >> f, html_slave.createKeysSite(doc)
+
+    # now for each group create the site
+    for group in doc.groups():
+        f = file('group%s.html' % group, 'w')
+        print >> f, html_slave.createGroupSite(group, doc.group_content(group))
+
+    # now for the keys
+    for key in doc.doc_keys():
+        f = file('key%s.html' % doc.doc_item(key).name(), 'w')
+        print >> f, html_slave.createKeySite(doc.doc_item(key))
+
+
+if __name__ == "__main__":
+    main()

bitbake/bin/git-make-shallow

@@ -0,0 +1,165 @@
+#!/usr/bin/env python3
+"""git-make-shallow: make the current git repository shallow
+
+Remove the history of the specified revisions, then optionally filter the
+available refs to those specified.
+"""
+
+import argparse
+import collections
+import errno
+import itertools
+import os
+import subprocess
+import sys
+
+version = 1.0
+
+
+def main():
+    if sys.version_info < (3, 4, 0):
+        sys.exit('Python 3.4 or greater is required')
+
+    git_dir = check_output(['git', 'rev-parse', '--git-dir']).rstrip()
+    shallow_file = os.path.join(git_dir, 'shallow')
+    if os.path.exists(shallow_file):
+        try:
+            check_output(['git', 'fetch', '--unshallow'])
+        except subprocess.CalledProcessError:
+            try:
+                os.unlink(shallow_file)
+            except OSError as exc:
+                if exc.errno != errno.ENOENT:
+                    raise
+
+    args = process_args()
+    revs = check_output(['git', 'rev-list'] + args.revisions).splitlines()
+
+    make_shallow(shallow_file, args.revisions, args.refs)
+
+    ref_revs = check_output(['git', 'rev-list'] + args.refs).splitlines()
+    remaining_history = set(revs) & set(ref_revs)
+    for rev in remaining_history:
+        if check_output(['git', 'rev-parse', '{}^@'.format(rev)]):
+            sys.exit('Error: %s was not made shallow' % rev)
+
+    filter_refs(args.refs)
+
+    if args.shrink:
+        shrink_repo(git_dir)
+        subprocess.check_call(['git', 'fsck', '--unreachable'])
+
+
+def process_args():
+    # TODO: add argument to automatically keep local-only refs, since they
+    # can't be easily restored with a git fetch.
+    parser = argparse.ArgumentParser(description='Remove the history of the specified revisions, then optionally filter the available refs to those specified.')
+    parser.add_argument('--ref', '-r', metavar='REF', action='append', dest='refs', help='remove all but the specified refs (cumulative)')
+    parser.add_argument('--shrink', '-s', action='store_true', help='shrink the git repository by repacking and pruning')
+    parser.add_argument('revisions', metavar='REVISION', nargs='+', help='a git revision/commit')
+    if len(sys.argv) < 2:
+        parser.print_help()
+        sys.exit(2)
+
+    args = parser.parse_args()
+
+    if args.refs:
+        args.refs = check_output(['git', 'rev-parse', '--symbolic-full-name'] + args.refs).splitlines()
+    else:
+        args.refs = get_all_refs(lambda r, t, tt: t == 'commit' or tt == 'commit')
+
+    args.refs = list(filter(lambda r: not r.endswith('/HEAD'), args.refs))
+    args.revisions = check_output(['git', 'rev-parse'] + ['%s^{}' % i for i in args.revisions]).splitlines()
+    return args
+
+
+def check_output(cmd, input=None):
+    return subprocess.check_output(cmd, universal_newlines=True, input=input)
+
+
+def make_shallow(shallow_file, revisions, refs):
+    """Remove the history of the specified revisions."""
+    for rev in follow_history_intersections(revisions, refs):
+        print("Processing %s" % rev)
+        with open(shallow_file, 'a') as f:
+            f.write(rev + '\n')
+
+
+def get_all_refs(ref_filter=None):
+    """Return all the existing refs in this repository, optionally filtering the refs."""
+    ref_output = check_output(['git', 'for-each-ref', '--format=%(refname)\t%(objecttype)\t%(*objecttype)'])
+    ref_split = [tuple(iter_extend(l.rsplit('\t'), 3)) for l in ref_output.splitlines()]
+    if ref_filter:
+        ref_split = (e for e in ref_split if ref_filter(*e))
+    refs = [r[0] for r in ref_split]
+    return refs
+
+
+def iter_extend(iterable, length, obj=None):
+    """Ensure that iterable is the specified length by extending with obj."""
+    return itertools.islice(itertools.chain(iterable, itertools.repeat(obj)), length)
+
+
+def filter_refs(refs):
+    """Remove all but the specified refs from the git repository."""
+    all_refs = get_all_refs()
+    to_remove = set(all_refs) - set(refs)
+    if to_remove:
+        check_output(['xargs', '-0', '-n', '1', 'git', 'update-ref', '-d', '--no-deref'],
+                     input=''.join(l + '\0' for l in to_remove))
+
+
+def follow_history_intersections(revisions, refs):
+    """Determine all the points where the history of the specified revisions intersects the specified refs."""
+    queue = collections.deque(revisions)
+    seen = set()
+
+    for rev in iter_except(queue.popleft, IndexError):
+        if rev in seen:
+            continue
+
+        parents = check_output(['git', 'rev-parse', '%s^@' % rev]).splitlines()
+
+        yield rev
+        seen.add(rev)
+
+        if not parents:
+            continue
+
+        check_refs = check_output(['git', 'merge-base', '--independent'] + sorted(refs)).splitlines()
+        for parent in parents:
+            for ref in check_refs:
+                print("Checking %s vs %s" % (parent, ref))
+                try:
+                    merge_base = check_output(['git', 'merge-base', parent, ref]).rstrip()
+                except subprocess.CalledProcessError:
+                    continue
+                else:
+                    queue.append(merge_base)
+
+
+def iter_except(func, exception, start=None):
+    """Yield a function repeatedly until it raises an exception."""
+    try:
+        if start is not None:
+            yield start()
+        while True:
+            yield func()
+    except exception:
+        pass
+
+
+def shrink_repo(git_dir):
+    """Shrink the newly shallow repository, removing the unreachable objects."""
+    subprocess.check_call(['git', 'reflog', 'expire', '--expire-unreachable=now', '--all'])
+    subprocess.check_call(['git', 'repack', '-ad'])
+    try:
+        os.unlink(os.path.join(git_dir, 'objects', 'info', 'alternates'))
+    except OSError as exc:
+        if exc.errno != errno.ENOENT:
+            raise
+    subprocess.check_call(['git', 'prune', '--expire', 'now'])
+
+
+if __name__ == '__main__':
+    main()

bitbake/bin/toaster

@@ -0,0 +1,305 @@
+#!/bin/echo ERROR: This script needs to be sourced. Please run as .
+
+# toaster - shell script to start Toaster
+
+# Copyright (C) 2013-2015 Intel Corp.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see http://www.gnu.org/licenses/.
+
+HELP="
+Usage: source toaster start|stop [webport=<address:port>] [noweb]
+    Optional arguments:
+        [noweb] Setup the environment for building with toaster but don't start the development server
+        [webport] Set the development server (default: localhost:8000)
+"
+
+custom_extention()
+{
+    custom_extension=$BBBASEDIR/lib/toaster/orm/fixtures/custom_toaster_append.sh
+    if [ -f $custom_extension ] ; then
+        $custom_extension $*
+    fi
+}
+
+databaseCheck()
+{
+    retval=0
+    # you can always add a superuser later via
+    # ../bitbake/lib/toaster/manage.py createsuperuser --username=<ME>
+    $MANAGE migrate --noinput || retval=1
+
+    if [ $retval -eq 1 ]; then
+        echo "Failed migrations, aborting system start" 1>&2
+        return $retval
+    fi
+    # Make sure that checksettings can pick up any value for TEMPLATECONF
+    export TEMPLATECONF
+    $MANAGE checksettings --traceback || retval=1
+
+    if [ $retval -eq 1 ]; then
+        printf "\nError while checking settings; aborting\n"
+        return $retval
+    fi
+
+    return $retval
+}
+
+webserverKillAll()
+{
+    local pidfile
+    if [ -f ${BUILDDIR}/.toastermain.pid ] ; then
+        custom_extention web_stop_postpend
+    else
+        custom_extention noweb_stop_postpend
+    fi
+    for pidfile in ${BUILDDIR}/.toastermain.pid ${BUILDDIR}/.runbuilds.pid; do
+        if [ -f ${pidfile} ]; then
+            pid=`cat ${pidfile}`
+            while kill -0 $pid 2>/dev/null; do
+                kill -SIGTERM -$pid 2>/dev/null
+                sleep 1
+            done
+            rm  ${pidfile}
+        fi
+    done
+}
+
+webserverStartAll()
+{
+    # do not start if toastermain points to a valid process
+    if ! cat "${BUILDDIR}/.toastermain.pid" 2>/dev/null | xargs -I{} kill -0 {} ; then
+        retval=1
+        rm "${BUILDDIR}/.toastermain.pid"
+    fi
+
+    retval=0
+
+    # check the database
+    databaseCheck || return 1
+
+    echo "Starting webserver..."
+
+    $MANAGE runserver "$ADDR_PORT" \
+           </dev/null >>${BUILDDIR}/toaster_web.log 2>&1 \
+           & echo $! >${BUILDDIR}/.toastermain.pid
+
+    sleep 1
+
+    if ! cat "${BUILDDIR}/.toastermain.pid" | xargs -I{} kill -0 {} ; then
+        retval=1
+        rm "${BUILDDIR}/.toastermain.pid"
+    else
+        echo "Toaster development webserver started at http://$ADDR_PORT"
+        echo -e "\nYou can now run 'bitbake <target>' on the command line and monitor your build in Toaster.\nYou can also use a Toaster project to configure and run a build.\n"
+        custom_extention web_start_postpend $ADDR_PORT
+    fi
+
+    return $retval
+}
+
+INSTOPSYSTEM=0
+
+# define the stop command
+stop_system()
+{
+    # prevent reentry
+    if [ $INSTOPSYSTEM -eq 1 ]; then return; fi
+    INSTOPSYSTEM=1
+    webserverKillAll
+    # unset exported variables
+    unset TOASTER_DIR
+    unset BITBAKE_UI
+    unset BBBASEDIR
+    trap - SIGHUP
+    #trap - SIGCHLD
+    INSTOPSYSTEM=0
+}
+
+verify_prereq() {
+    # Verify Django version
+    reqfile=$(python3 -c "import os; print(os.path.realpath('$BBBASEDIR/toaster-requirements.txt'))")
+    exp='s/Django\([><=]\+\)\([^,]\+\),\([><=]\+\)\(.\+\)/'
+    # expand version parts to 2 digits to support 1.10.x > 1.8
+    # (note:helper functions hard to insert in-line)
+    exp=$exp'import sys,django;'
+    exp=$exp'version=["%02d" % int(n) for n in django.get_version().split(".")];'
+    exp=$exp'vmin=["%02d" % int(n) for n in "\2".split(".")];'
+    exp=$exp'vmax=["%02d" % int(n) for n in "\4".split(".")];'
+    exp=$exp'sys.exit(not (version \1 vmin and version \3 vmax))'
+    exp=$exp'/p'
+    if ! sed -n "$exp" $reqfile | python3 - ; then
+        req=`grep ^Django $reqfile`
+        echo "This program needs $req"
+        echo "Please install with pip3 install -r $reqfile"
+        return 2
+    fi
+
+    return 0
+}
+
+# read command line parameters
+if [ -n "$BASH_SOURCE" ] ; then
+    TOASTER=${BASH_SOURCE}
+elif [ -n "$ZSH_NAME" ] ; then
+    TOASTER=${(%):-%x}
+else
+    TOASTER=$0
+fi
+
+export BBBASEDIR=`dirname $TOASTER`/..
+MANAGE="python3 $BBBASEDIR/lib/toaster/manage.py"
+OE_ROOT=`dirname $TOASTER`/../..
+
+# this is the configuraton file we are using for toaster
+# we are using the same logic that oe-setup-builddir uses
+# (based on TEMPLATECONF and .templateconf) to determine
+# which toasterconf.json to use.
+# note: There are a number of relative path assumptions
+# in the local layers that currently make using an arbitrary
+# toasterconf.json difficult.
+
+. $OE_ROOT/.templateconf
+if [ -n "$TEMPLATECONF" ]; then
+    if [ ! -d "$TEMPLATECONF" ]; then
+        # Allow TEMPLATECONF=meta-xyz/conf as a shortcut
+        if [ -d "$OE_ROOT/$TEMPLATECONF" ]; then
+            TEMPLATECONF="$OE_ROOT/$TEMPLATECONF"
+        fi
+    fi
+fi
+
+unset OE_ROOT
+
+
+WEBSERVER=1
+ADDR_PORT="localhost:8000"
+unset CMD
+for param in $*; do
+    case $param in
+    noweb )
+            WEBSERVER=0
+    ;;
+    start )
+            CMD=$param
+    ;;
+    stop )
+            CMD=$param
+    ;;
+    webport=*)
+            ADDR_PORT="${param#*=}"
+            # Split the addr:port string
+            ADDR=`echo $ADDR_PORT | cut -f 1 -d ':'`
+            PORT=`echo $ADDR_PORT | cut -f 2 -d ':'`
+            # If only a port has been speified then set address to localhost.
+            if [ $ADDR = $PORT ] ; then
+                ADDR_PORT="localhost:$PORT"
+            fi
+    ;;
+    --help)
+            echo "$HELP"
+            return 0
+    ;;
+    *)
+            echo "$HELP"
+            return 1
+    ;;
+
+    esac
+done
+
+if [ `basename \"$0\"` = `basename \"${TOASTER}\"` ]; then
+    echo "Error: This script needs to be sourced. Please run as . $TOASTER"
+    return 1
+fi
+
+verify_prereq || return 1
+
+# We make sure we're running in the current shell and in a good environment
+if [ -z "$BUILDDIR" ] ||  ! which bitbake >/dev/null 2>&1 ; then
+    echo "Error: Build environment is not setup or bitbake is not in path." 1>&2
+    return 2
+fi
+
+# this defines the dir toaster will use for
+# 1) clones of layers (in _toaster_clones )
+# 2) the build dir (in build)
+# 3) the sqlite db if that is being used.
+# 4) pid's we need to clean up on exit/shutdown
+export TOASTER_DIR=`dirname $BUILDDIR`
+export BB_ENV_EXTRAWHITE="$BB_ENV_EXTRAWHITE TOASTER_DIR"
+
+# Determine the action. If specified by arguments, fine, if not, toggle it
+if [ "$CMD" = "start" ] ; then
+    if [ -n "$BBSERVER" ]; then
+	echo " Toaster is already running. Exiting..."
+	return 1
+fi
+elif [ "$CMD" = "" ]; then
+    echo "No command specified"
+    echo "$HELP"
+    return 1
+fi
+
+echo "The system will $CMD."
+
+# Execute the commands
+custom_extention toaster_prepend $CMD $ADDR_PORT
+
+case $CMD in
+    start )
+        # check if addr:port is not in use
+        if [ "$CMD" == 'start' ]; then
+            if [ $WEBSERVER -gt 0 ]; then
+                $MANAGE checksocket "$ADDR_PORT" || return 1
+            fi
+        fi
+
+        # Create configuration file
+        conf=${BUILDDIR}/conf/local.conf
+        line='INHERIT+="toaster buildhistory"'
+        grep -q "$line" $conf || echo $line >> $conf
+
+        if [ $WEBSERVER -eq 0 ] ; then
+            # Do not update the database for "noweb" unless
+            # it does not yet exist
+            if [ ! -f "$TOASTER_DIR/toaster.sqlite" ] ; then
+                if ! databaseCheck; then
+                    echo "Failed ${CMD}."
+                    return 4
+                fi
+            fi
+            custom_extention noweb_start_postpend $ADDR_PORT
+        fi
+        if [ $WEBSERVER -gt 0 ] && ! webserverStartAll; then
+            echo "Failed ${CMD}."
+            return 4
+        fi
+        export BITBAKE_UI='toasterui'
+        $MANAGE runbuilds \
+           </dev/null >>${BUILDDIR}/toaster_runbuilds.log 2>&1 \
+           & echo $! >${BUILDDIR}/.runbuilds.pid
+
+        # set fail safe stop system on terminal exit
+        trap stop_system SIGHUP
+        echo "Successful ${CMD}."
+        custom_extention toaster_postpend $CMD $ADDR_PORT
+        return 0
+    ;;
+    stop )
+        stop_system
+        echo "Successful ${CMD}."
+    ;;
+esac
+custom_extention toaster_postpend $CMD $ADDR_PORT
+

bitbake/bin/toaster-eventreplay

@@ -0,0 +1,126 @@
+#!/usr/bin/env python3
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2014        Alex Damian
+#
+# This file re-uses code spread throughout other Bitbake source files.
+# As such, all other copyrights belong to their own right holders.
+#
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+This command takes a filename as a single parameter. The filename is read
+as a build eventlog, and the ToasterUI is used to process events in the file
+and log data in the database
+"""
+
+import os
+import sys
+import json
+import pickle
+import codecs
+
+from collections import namedtuple
+
+# mangle syspath to allow easy import of modules
+from os.path import join, dirname, abspath
+sys.path.insert(0, join(dirname(dirname(abspath(__file__))), 'lib'))
+
+import bb.cooker
+from bb.ui import toasterui
+
+class EventPlayer:
+    """Emulate a connection to a bitbake server."""
+
+    def __init__(self, eventfile, variables):
+        self.eventfile = eventfile
+        self.variables = variables
+        self.eventmask = []
+
+    def waitEvent(self, _timeout):
+        """Read event from the file."""
+        line = self.eventfile.readline().strip()
+        if not line:
+            return
+        try:
+            event_str = json.loads(line)['vars'].encode('utf-8')
+            event = pickle.loads(codecs.decode(event_str, 'base64'))
+            event_name = "%s.%s" % (event.__module__, event.__class__.__name__)
+            if event_name not in self.eventmask:
+                return
+            return event
+        except ValueError as err:
+            print("Failed loading ", line)
+            raise err
+
+    def runCommand(self, command_line):
+        """Emulate running a command on the server."""
+        name = command_line[0]
+
+        if name == "getVariable":
+            var_name = command_line[1]
+            variable = self.variables.get(var_name)
+            if variable:
+                return variable['v'], None
+            return None, "Missing variable %s" % var_name
+
+        elif name == "getAllKeysWithFlags":
+            dump = {}
+            flaglist = command_line[1]
+            for key, val in self.variables.items():
+                try:
+                    if not key.startswith("__"):
+                        dump[key] = {
+                            'v': val['v'],
+                            'history' : val['history'],
+                        }
+                        for flag in flaglist:
+                            dump[key][flag] = val[flag]
+                except Exception as err:
+                    print(err)
+            return (dump, None)
+
+        elif name == 'setEventMask':
+            self.eventmask = command_line[-1]
+            return True, None
+
+        else:
+            raise Exception("Command %s not implemented" % command_line[0])
+
+    def getEventHandle(self):
+        """
+        This method is called by toasterui.
+        The return value is passed to self.runCommand but not used there.
+        """
+        pass
+
+def main(argv):
+    with open(argv[-1]) as eventfile:
+        # load variables from the first line
+        variables = json.loads(eventfile.readline().strip())['allvariables']
+
+        params = namedtuple('ConfigParams', ['observe_only'])(True)
+        player = EventPlayer(eventfile, variables)
+
+        return toasterui.main(player, player, params)
+
+# run toaster ui on our mock bitbake class
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: %s <event file>" % os.path.basename(sys.argv[0]))
+        sys.exit(1)
+
+    sys.exit(main(sys.argv))

bitbake/contrib/README

@@ -0,0 +1 @@
+This directory is for additional contributed files which may be useful.

bitbake/contrib/bbdev.sh

@@ -0,0 +1,31 @@
+# This is a shell function to be sourced into your shell or placed in your .profile,
+# which makes setting things up for BitBake a bit easier.
+#
+# The author disclaims copyright to the contents of this file and places it in the
+# public domain.
+
+bbdev () {
+	local BBDIR PKGDIR BUILDDIR
+	if test x"$1" = "x--help"; then echo >&2 "syntax: bbdev [bbdir [pkgdir [builddir]]]"; return 1; fi
+	if test x"$1" = x; then BBDIR=`pwd`; else BBDIR=$1; fi
+	if test x"$2" = x; then PKGDIR=`pwd`; else PKGDIR=$2; fi
+	if test x"$3" = x; then BUILDDIR=`pwd`; else BUILDDIR=$3; fi
+
+	BBDIR=`readlink -f $BBDIR`
+	PKGDIR=`readlink -f $PKGDIR`
+	BUILDDIR=`readlink -f $BUILDDIR`
+	if ! (test -d $BBDIR && test -d $PKGDIR && test -d $BUILDDIR); then
+		echo >&2 "syntax: bbdev [bbdir [pkgdir [builddir]]]"
+		return 1
+	fi
+	
+	PATH=$BBDIR/bin:$PATH
+	BBPATH=$BBDIR
+	if test x"$BBDIR" != x"$PKGDIR"; then
+		BBPATH=$PKGDIR:$BBPATH
+	fi
+	if test x"$PKGDIR" != x"$BUILDDIR"; then
+		BBPATH=$BUILDDIR:$BBPATH
+	fi
+	export BBPATH
+}

bitbake/contrib/dump_cache.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2012 Wind River Systems, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+#
+# This is used for dumping the bb_cache.dat, the output format is:
+# recipe_path PN PV PACKAGES
+#
+import os
+import sys
+import warnings
+
+# For importing bb.cache
+sys.path.insert(0, os.path.join(os.path.abspath(os.path.dirname(sys.argv[0])), '../lib'))
+from bb.cache import CoreRecipeInfo
+
+import pickle as pickle
+
+def main(argv=None):
+    """
+    Get the mapping for the target recipe.
+    """
+    if len(argv) != 1:
+        print("Error, need one argument!", file=sys.stderr)
+        return 2
+
+    cachefile = argv[0]
+
+    with open(cachefile, "rb") as cachefile:
+        pickled = pickle.Unpickler(cachefile)
+        while cachefile:
+            try:
+                key = pickled.load()
+                val = pickled.load()
+            except Exception:
+                break
+            if isinstance(val, CoreRecipeInfo) and (not val.skipped):
+                pn = val.pn
+                # Filter out the native recipes.
+                if key.startswith('virtual:native:') or pn.endswith("-native"):
+                    continue
+
+                # 1.0 is the default version for a no PV recipe.
+                if "pv" in val.__dict__:
+                    pv = val.pv
+                else:
+                    pv = "1.0"
+
+                print("%s %s %s %s" % (key, pn, pv, ' '.join(val.packages)))
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))
+

bitbake/contrib/vim/ftdetect/bitbake.vim

@@ -0,0 +1,24 @@
+" Vim filetype detection file
+" Language:     BitBake
+" Author:       Ricardo Salveti <rsalveti@rsalveti.net>
+" Copyright:    Copyright (C) 2008  Ricardo Salveti <rsalveti@rsalveti.net>
+" Licence:      You may redistribute this under the same terms as Vim itself
+"
+" This sets up the syntax highlighting for BitBake files, like .bb, .bbclass and .inc
+
+if &compatible || version < 600
+    finish
+endif
+
+" .bb, .bbappend and .bbclass
+au BufNewFile,BufRead *.{bb,bbappend,bbclass}	set filetype=bitbake
+
+" .inc
+au BufNewFile,BufRead *.inc		set filetype=bitbake
+
+" .conf
+au BufNewFile,BufRead *.conf
+    \ if (match(expand("%:p:h"), "conf") > 0) |
+    \     set filetype=bitbake |
+    \ endif
+

bitbake/contrib/vim/ftplugin/bitbake.vim

@@ -0,0 +1,2 @@
+set sts=4 sw=4 et
+set cms=#%s

bitbake/contrib/vim/plugin/newbb.vim

@@ -0,0 +1,84 @@
+" Vim plugin file
+" Purpose:	Create a template for new bb files
+" Author:	Ricardo Salveti <rsalveti@gmail.com>
+" Copyright:	Copyright (C) 2008 Ricardo Salveti <rsalveti@gmail.com>
+"
+" This file is licensed under the MIT license, see COPYING.MIT in
+" this source distribution for the terms.
+"
+" Based on the gentoo-syntax package
+"
+" Will try to use git to find the user name and email
+
+if &compatible || v:version < 600
+    finish
+endif
+
+fun! <SID>GetUserName()
+    let l:user_name = system("git config --get user.name")
+    if v:shell_error
+        return "Unknown User"
+    else
+        return substitute(l:user_name, "\n", "", "")
+endfun
+
+fun! <SID>GetUserEmail()
+    let l:user_email = system("git config --get user.email")
+    if v:shell_error
+        return "unknow@user.org"
+    else
+        return substitute(l:user_email, "\n", "", "")
+endfun
+
+fun! BBHeader()
+    let l:current_year = strftime("%Y")
+    let l:user_name = <SID>GetUserName()
+    let l:user_email = <SID>GetUserEmail()
+    0 put ='# Copyright (C) ' . l:current_year .
+                \ ' ' . l:user_name . ' <' . l:user_email . '>'
+    put ='# Released under the MIT license (see COPYING.MIT for the terms)'
+    $
+endfun
+
+fun! NewBBTemplate()
+    let l:paste = &paste
+    set nopaste
+    
+    " Get the header
+    call BBHeader()
+
+    " New the bb template
+    put ='DESCRIPTION = \"\"'
+    put ='HOMEPAGE = \"\"'
+    put ='LICENSE = \"\"' 
+    put ='SECTION = \"\"'
+    put ='DEPENDS = \"\"'
+    put =''
+    put ='SRC_URI = \"\"'
+
+    " Go to the first place to edit
+    0
+    /^DESCRIPTION =/
+    exec "normal 2f\""
+
+    if paste == 1
+        set paste
+    endif
+endfun
+
+if !exists("g:bb_create_on_empty")
+    let g:bb_create_on_empty = 1
+endif
+
+" disable in case of vimdiff
+if v:progname =~ "vimdiff"
+    let g:bb_create_on_empty = 0
+endif
+
+augroup NewBB
+    au BufNewFile *.bb
+                \ if g:bb_create_on_empty |
+                \    call NewBBTemplate() |
+                \ endif
+augroup END
+

bitbake/contrib/vim/syntax/bitbake.vim

@@ -0,0 +1,126 @@
+" Vim syntax file
+" Language:     BitBake bb/bbclasses/inc
+" Author:       Chris Larson <kergoth@handhelds.org>
+"               Ricardo Salveti <rsalveti@rsalveti.net>
+" Copyright:    Copyright (C) 2004  Chris Larson <kergoth@handhelds.org>
+"               Copyright (C) 2008  Ricardo Salveti <rsalveti@rsalveti.net>
+"
+" This file is licensed under the MIT license, see COPYING.MIT in
+" this source distribution for the terms.
+"
+" Syntax highlighting for bb, bbclasses and inc files.
+"
+" It's an entirely new type, just has specific syntax in shell and python code
+
+if &compatible || v:version < 600
+    finish
+endif
+if exists("b:current_syntax")
+    finish
+endif
+
+syn include @python syntax/python.vim
+if exists("b:current_syntax")
+  unlet b:current_syntax
+endif
+
+" BitBake syntax
+
+" Matching case
+syn case match
+
+" Indicates the error when nothing is matched
+syn match bbUnmatched           "."
+
+" Comments
+syn cluster bbCommentGroup      contains=bbTodo,@Spell
+syn keyword bbTodo              COMBAK FIXME TODO XXX contained
+syn match bbComment             "#.*$" contains=@bbCommentGroup
+
+" String helpers
+syn match bbQuote               +['"]+ contained 
+syn match bbDelimiter           "[(){}=]" contained
+syn match bbArrayBrackets       "[\[\]]" contained
+
+" BitBake strings
+syn match bbContinue            "\\$"
+syn region bbString             matchgroup=bbQuote start=+"+ skip=+\\$+ end=+"+ contained contains=bbTodo,bbContinue,bbVarDeref,bbVarPyValue,@Spell
+syn region bbString             matchgroup=bbQuote start=+'+ skip=+\\$+ end=+'+ contained contains=bbTodo,bbContinue,bbVarDeref,bbVarPyValue,@Spell
+
+" Vars definition
+syn match bbExport            "^export" nextgroup=bbIdentifier skipwhite
+syn keyword bbExportFlag        export contained nextgroup=bbIdentifier skipwhite
+syn match bbIdentifier          "[a-zA-Z0-9\-_\.\/\+]\+" display contained
+syn match bbVarDeref            "${[a-zA-Z0-9\-_\.\/\+]\+}" contained
+syn match bbVarEq               "\(:=\|+=\|=+\|\.=\|=\.\|?=\|??=\|=\)" contained nextgroup=bbVarValue
+syn match bbVarDef              "^\(export\s*\)\?\([a-zA-Z0-9\-_\.\/\+]\+\(_[${}a-zA-Z0-9\-_\.\/\+]\+\)\?\)\s*\(:=\|+=\|=+\|\.=\|=\.\|?=\|??=\|=\)\@=" contains=bbExportFlag,bbIdentifier,bbVarDeref nextgroup=bbVarEq
+syn match bbVarValue            ".*$" contained contains=bbString,bbVarDeref,bbVarPyValue
+syn region bbVarPyValue         start=+${@+ skip=+\\$+ end=+}+ contained contains=@python
+
+" Vars metadata flags
+syn match bbVarFlagDef          "^\([a-zA-Z0-9\-_\.]\+\)\(\[[a-zA-Z0-9\-_\.]\+\]\)\@=" contains=bbIdentifier nextgroup=bbVarFlagFlag
+syn region bbVarFlagFlag        matchgroup=bbArrayBrackets start="\[" end="\]\s*\(=\|+=\|=+\|?=\)\@=" contained contains=bbIdentifier nextgroup=bbVarEq
+
+" Includes and requires
+syn keyword bbInclude           inherit include require contained 
+syn match bbIncludeRest         ".*$" contained contains=bbString,bbVarDeref
+syn match bbIncludeLine         "^\(inherit\|include\|require\)\s\+" contains=bbInclude nextgroup=bbIncludeRest
+
+" Add taks and similar
+syn keyword bbStatement         addtask addhandler after before EXPORT_FUNCTIONS contained
+syn match bbStatementRest       ".*$" skipwhite contained contains=bbStatement
+syn match bbStatementLine       "^\(addtask\|addhandler\|after\|before\|EXPORT_FUNCTIONS\)\s\+" contains=bbStatement nextgroup=bbStatementRest
+
+" OE Important Functions
+syn keyword bbOEFunctions       do_fetch do_unpack do_patch do_configure do_compile do_stage do_install do_package contained
+
+" Generic Functions
+syn match bbFunction            "\h[0-9A-Za-z_-]*" display contained contains=bbOEFunctions
+
+" BitBake shell metadata
+syn include @shell syntax/sh.vim
+if exists("b:current_syntax")
+  unlet b:current_syntax
+endif
+syn keyword bbShFakeRootFlag    fakeroot contained
+syn match bbShFuncDef           "^\(fakeroot\s*\)\?\([0-9A-Za-z_${}-]\+\)\(python\)\@<!\(\s*()\s*\)\({\)\@=" contains=bbShFakeRootFlag,bbFunction,bbVarDeref,bbDelimiter nextgroup=bbShFuncRegion skipwhite
+syn region bbShFuncRegion       matchgroup=bbDelimiter start="{\s*$" end="^}\s*$" contained contains=@shell
+
+" Python value inside shell functions
+syn region shDeref         start=+${@+ skip=+\\$+ excludenl end=+}+ contained contains=@python
+
+" BitBake python metadata
+syn keyword bbPyFlag            python contained
+syn match bbPyFuncDef           "^\(python\s\+\)\([0-9A-Za-z_${}-]\+\)\?\(\s*()\s*\)\({\)\@=" contains=bbPyFlag,bbFunction,bbVarDeref,bbDelimiter nextgroup=bbPyFuncRegion skipwhite
+syn region bbPyFuncRegion       matchgroup=bbDelimiter start="{\s*$" end="^}\s*$" contained contains=@python
+
+" BitBake 'def'd python functions
+syn keyword bbPyDef             def contained
+syn region bbPyDefRegion        start='^\(def\s\+\)\([0-9A-Za-z_-]\+\)\(\s*(.*)\s*\):\s*$' end='^\(\s\|$\)\@!' contains=@python
+
+" Highlighting Definitions
+hi def link bbUnmatched         Error
+hi def link bbInclude           Include
+hi def link bbTodo              Todo
+hi def link bbComment           Comment
+hi def link bbQuote             String
+hi def link bbString            String
+hi def link bbDelimiter         Keyword
+hi def link bbArrayBrackets     Statement
+hi def link bbContinue          Special
+hi def link bbExport            Type
+hi def link bbExportFlag        Type
+hi def link bbIdentifier	    Identifier
+hi def link bbVarDeref          PreProc
+hi def link bbVarDef            Identifier
+hi def link bbVarValue          String
+hi def link bbShFakeRootFlag    Type
+hi def link bbFunction          Function
+hi def link bbPyFlag            Type
+hi def link bbPyDef             Statement
+hi def link bbStatement         Statement
+hi def link bbStatementRest     Identifier
+hi def link bbOEFunctions       Special
+hi def link bbVarPyValue        PreProc
+
+let b:current_syntax = "bb"

bitbake/doc/COPYING.GPL

@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

bitbake/doc/COPYING.MIT

@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.

bitbake/doc/Makefile

@@ -0,0 +1,91 @@
+# This is a single Makefile to handle all generated BitBake documents.
+# The Makefile needs to live in the documentation directory and all figures used
+# in any manuals must be .PNG files and live in the individual book's figures
+# directory.
+#
+# The Makefile has these targets:
+#
+#    pdf:      generates a PDF version of a manual.
+#    html:     generates an HTML version of a manual.
+#    tarball:  creates a tarball for the doc files.
+#    validate: validates
+#    clean:    removes files
+#
+# The Makefile generates an HTML version of every document.  The
+# variable DOC indicates the folder name for a given manual.
+#
+# To build a manual, you must invoke 'make' with the DOC argument.
+#
+# Examples:
+#
+#     make DOC=bitbake-user-manual
+#     make pdf DOC=bitbake-user-manual
+#
+# The first example generates the HTML version of the User Manual.
+# The second example generates the PDF version of the User Manual.
+#
+
+ifeq ($(DOC),bitbake-user-manual)
+XSLTOPTS = --stringparam html.stylesheet bitbake-user-manual-style.css \
+           --stringparam  chapter.autolabel 1 \
+           --stringparam  section.autolabel 1 \
+           --stringparam  section.label.includes.component.label 1 \
+           --xinclude
+ALLPREQ = html tarball
+TARFILES = bitbake-user-manual-style.css bitbake-user-manual.html figures/bitbake-title.png
+MANUALS = $(DOC)/$(DOC).html
+FIGURES = figures
+STYLESHEET = $(DOC)/*.css
+
+endif
+
+##
+# These URI should be rewritten by your distribution's xml catalog to
+# match your localy installed XSL stylesheets.
+XSL_BASE_URI  = http://docbook.sourceforge.net/release/xsl/current
+XSL_XHTML_URI = $(XSL_BASE_URI)/xhtml/docbook.xsl
+
+all: $(ALLPREQ)
+
+pdf:
+ifeq ($(DOC),bitbake-user-manual)
+	@echo " "
+	@echo "********** Building."$(DOC)
+	@echo " "
+	cd $(DOC); ../tools/docbook-to-pdf $(DOC).xml ../template; cd ..
+endif
+
+html:
+ifeq ($(DOC),bitbake-user-manual)
+#       See http://www.sagehill.net/docbookxsl/HtmlOutput.html
+	@echo " "
+	@echo "******** Building "$(DOC)
+	@echo " "
+	cd $(DOC); xsltproc $(XSLTOPTS) -o $(DOC).html $(DOC)-customization.xsl $(DOC).xml; cd ..
+endif
+
+tarball: html
+	@echo " "
+	@echo "******** Creating Tarball of document files"
+	@echo " "
+	cd $(DOC); tar -cvzf $(DOC).tgz $(TARFILES); cd ..
+
+validate:
+	cd $(DOC); xmllint --postvalid --xinclude --noout $(DOC).xml; cd ..
+
+publish:
+	@if test -f $(DOC)/$(DOC).html; \
+	  then \
+            echo " "; \
+            echo "******** Publishing "$(DOC)".html"; \
+            echo " "; \
+            scp -r $(MANUALS) $(STYLESHEET) docs.yp:/var/www/www.yoctoproject.org-docs/$(VER)/$(DOC); \
+            cd $(DOC); scp -r $(FIGURES) docs.yp:/var/www/www.yoctoproject.org-docs/$(VER)/$(DOC); \
+	else \
+          echo " "; \
+          echo $(DOC)".html missing.  Generate the file first then try again."; \
+          echo " "; \
+	fi
+
+clean:
+	rm -rf $(MANUALS); rm $(DOC)/$(DOC).tgz;

bitbake/doc/README

@@ -0,0 +1,39 @@
+Documentation
+=============
+
+This is the directory that contains the BitBake documentation. 
+
+Manual Organization
+===================
+
+Folders exist for individual manuals as follows:
+
+* bitbake-user-manual      - The BitBake User Manual 
+
+Each folder is self-contained regarding content and figures.
+
+If you want to find HTML versions of the BitBake manuals on the web, 
+go to http://www.openembedded.org/wiki/Documentation. 
+
+Makefile
+========
+
+The Makefile processes manual directories to create HTML, PDF,
+tarballs, etc.  Details on how the Makefile work are documented
+inside the Makefile.  See that file for more information.
+
+To build a manual, you run the make command and pass it the name
+of the folder containing the manual's contents. 
+For example, the following command run from the documentation directory 
+creates an HTML and a PDF version of the BitBake User Manual.
+The DOC variable specifies the manual you are making:
+
+     $ make DOC=bitbake-user-manual
+
+template
+========
+Contains various templates, fonts, and some old PNG files.
+
+tools
+=====
+Contains a tool to convert the DocBook files to PDF format.

bitbake/doc/bitbake-user-manual/bitbake-user-manual-customization.xsl

@@ -0,0 +1,29 @@
+<?xml version='1.0'?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
+
+  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
+
+<!--
+
+  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
+
+  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
+
+-->
+
+  <xsl:include href="../template/permalinks.xsl"/>
+  <xsl:include href="../template/section.title.xsl"/>
+  <xsl:include href="../template/component.title.xsl"/>
+  <xsl:include href="../template/division.title.xsl"/>
+  <xsl:include href="../template/formal.object.heading.xsl"/>
+  <xsl:include href="../template/gloss-permalinks.xsl"/>
+
+  <xsl:param name="html.stylesheet" select="'user-manual-style.css'" />
+  <xsl:param name="chapter.autolabel" select="1" />
+  <xsl:param name="section.autolabel" select="1" />
+  <xsl:param name="section.label.includes.component.label" select="1" />
+  <xsl:param name="appendix.autolabel">A</xsl:param>
+
+<!--  <xsl:param name="generate.toc" select="'article nop'"></xsl:param>  -->
+
+</xsl:stylesheet>

bitbake/doc/bitbake-user-manual/bitbake-user-manual-execution.xml

@@ -0,0 +1,932 @@
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<chapter id="bitbake-user-manual-execution">
+    <title>Execution</title>
+
+    <para>
+        The primary purpose for running BitBake is to produce some kind
+        of output such as a single installable package, a kernel, a software
+        development kit, or even a full, board-specific bootable Linux image,
+        complete with bootloader, kernel, and root filesystem.
+        Of course, you can execute the <filename>bitbake</filename>
+        command with options that cause it to execute single tasks,
+        compile single recipe files, capture or clear data, or simply
+        return information about the execution environment.
+    </para>
+
+    <para>
+        This chapter describes BitBake's execution process from start
+        to finish when you use it to create an image.
+        The execution process is launched using the following command
+        form:
+        <literallayout class='monospaced'>
+     $ bitbake <replaceable>target</replaceable>
+        </literallayout>
+        For information on the BitBake command and its options,
+        see
+        "<link linkend='bitbake-user-manual-command'>The BitBake Command</link>"
+        section.
+        <note>
+            <para>
+                Prior to executing BitBake, you should take advantage of available
+                parallel thread execution on your build host by setting the
+                <link linkend='var-BB_NUMBER_THREADS'><filename>BB_NUMBER_THREADS</filename></link>
+                variable in your project's <filename>local.conf</filename>
+                configuration file.
+            </para>
+
+            <para>
+                A common method to determine this value for your build host is to run
+                the following:
+                <literallayout class='monospaced'>
+     $ grep processor /proc/cpuinfo
+                </literallayout>
+                This command returns the number of processors, which takes into
+                account hyper-threading.
+                Thus, a quad-core build host with hyper-threading most likely
+                shows eight processors, which is the value you would then assign to
+                <filename>BB_NUMBER_THREADS</filename>.
+            </para>
+
+            <para>
+                A possibly simpler solution is that some Linux distributions
+                (e.g. Debian and Ubuntu) provide the <filename>ncpus</filename> command.
+            </para>
+        </note>
+    </para>
+
+    <section id='parsing-the-base-configuration-metadata'>
+        <title>Parsing the Base Configuration Metadata</title>
+
+        <para>
+            The first thing BitBake does is parse base configuration
+            metadata.
+            Base configuration metadata consists of your project's
+            <filename>bblayers.conf</filename> file to determine what
+            layers BitBake needs to recognize, all necessary
+            <filename>layer.conf</filename> files (one from each layer),
+            and <filename>bitbake.conf</filename>.
+            The data itself is of various types:
+            <itemizedlist>
+                <listitem><para><emphasis>Recipes:</emphasis>
+                    Details about particular pieces of software.
+                    </para></listitem>
+                <listitem><para><emphasis>Class Data:</emphasis>
+                    An abstraction of common build information
+                    (e.g. how to build a Linux kernel).
+                    </para></listitem>
+                <listitem><para><emphasis>Configuration Data:</emphasis>
+                    Machine-specific settings, policy decisions,
+                    and so forth.
+                    Configuration data acts as the glue to bind everything
+                    together.</para></listitem>
+            </itemizedlist>
+        </para>
+
+        <para>
+            The <filename>layer.conf</filename> files are used to
+            construct key variables such as
+            <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
+            and
+            <link linkend='var-BBFILES'><filename>BBFILES</filename></link>.
+            <filename>BBPATH</filename> is used to search for
+            configuration and class files under the
+            <filename>conf</filename> and <filename>classes</filename>
+            directories, respectively.
+            <filename>BBFILES</filename> is used to locate both recipe
+            and recipe append files
+            (<filename>.bb</filename> and <filename>.bbappend</filename>).
+            If there is no <filename>bblayers.conf</filename> file,
+            it is assumed the user has set the <filename>BBPATH</filename>
+            and <filename>BBFILES</filename> directly in the environment.
+        </para>
+
+        <para>
+            Next, the <filename>bitbake.conf</filename> file is located
+            using the <filename>BBPATH</filename> variable that was
+            just constructed.
+            The <filename>bitbake.conf</filename> file may also include other
+            configuration files using the
+            <filename>include</filename> or
+            <filename>require</filename> directives.
+        </para>
+
+        <para>
+            Prior to parsing configuration files, Bitbake looks
+            at certain variables, including:
+            <itemizedlist>
+                <listitem><para>
+                    <link linkend='var-BB_ENV_WHITELIST'><filename>BB_ENV_WHITELIST</filename></link>
+                    </para></listitem>
+                <listitem><para>
+                    <link linkend='var-BB_ENV_EXTRAWHITE'><filename>BB_ENV_EXTRAWHITE</filename></link>
+                    </para></listitem>
+                <listitem><para>
+                    <link linkend='var-BB_PRESERVE_ENV'><filename>BB_PRESERVE_ENV</filename></link>
+                    </para></listitem>
+                <listitem><para>
+                    <link linkend='var-BB_ORIGENV'><filename>BB_ORIGENV</filename></link>
+                    </para></listitem>
+                <listitem><para>
+                    <link linkend='var-BITBAKE_UI'><filename>BITBAKE_UI</filename></link>
+                    </para></listitem>
+            </itemizedlist>
+            The first four variables in this list relate to how BitBake treats shell
+            environment variables during task execution.
+            By default, BitBake cleans the environment variables and provides tight
+            control over the shell execution environment.
+            However, through the use of these first four variables, you can
+            apply your control regarding the
+            environment variables allowed to be used by BitBake in the shell
+            during execution of tasks.
+            See the
+            "<link linkend='passing-information-into-the-build-task-environment'>Passing Information Into the Build Task Environment</link>"
+            section and the information about these variables in the
+            variable glossary for more information on how they work and
+            on how to use them.
+        </para>
+
+        <para>
+            The base configuration metadata is global
+            and therefore affects all recipes and tasks that are executed.
+        </para>
+
+        <para>
+            BitBake first searches the current working directory for an
+            optional <filename>conf/bblayers.conf</filename> configuration file.
+            This file is expected to contain a
+            <link linkend='var-BBLAYERS'><filename>BBLAYERS</filename></link>
+            variable that is a space-delimited list of 'layer' directories.
+            Recall that if BitBake cannot find a <filename>bblayers.conf</filename>
+            file, then it is assumed the user has set the <filename>BBPATH</filename>
+            and <filename>BBFILES</filename> variables directly in the environment.
+        </para>
+
+        <para>
+            For each directory (layer) in this list, a <filename>conf/layer.conf</filename>
+            file is located and parsed with the
+            <link linkend='var-LAYERDIR'><filename>LAYERDIR</filename></link>
+            variable being set to the directory where the layer was found.
+            The idea is these files automatically set up
+            <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
+            and other variables correctly for a given build directory.
+        </para>
+
+        <para>
+            BitBake then expects to find the <filename>conf/bitbake.conf</filename>
+            file somewhere in the user-specified <filename>BBPATH</filename>.
+            That configuration file generally has include directives to pull
+            in any other metadata such as files specific to the architecture,
+            the machine, the local environment, and so forth.
+        </para>
+
+        <para>
+            Only variable definitions and include directives are allowed
+            in BitBake <filename>.conf</filename> files.
+            Some variables directly influence BitBake's behavior.
+            These variables might have been set from the environment
+            depending on the environment variables previously
+            mentioned or set in the configuration files.
+            The
+            "<link linkend='ref-variables-glos'>Variables Glossary</link>"
+            chapter presents a full list of variables.
+        </para>
+
+        <para>
+            After parsing configuration files, BitBake uses its rudimentary
+            inheritance mechanism, which is through class files, to inherit
+            some standard classes.
+            BitBake parses a class when the inherit directive responsible
+            for getting that class is encountered.
+        </para>
+
+        <para>
+            The <filename>base.bbclass</filename> file is always included.
+            Other classes that are specified in the configuration using the
+            <link linkend='var-INHERIT'><filename>INHERIT</filename></link>
+            variable are also included.
+            BitBake searches for class files in a
+            <filename>classes</filename> subdirectory under
+            the paths in <filename>BBPATH</filename> in the same way as
+            configuration files.
+        </para>
+
+        <para>
+            A good way to get an idea of the configuration files and
+            the class files used in your execution environment is to
+            run the following BitBake command:
+            <literallayout class='monospaced'>
+     $ bitbake -e > mybb.log
+            </literallayout>
+            Examining the top of the <filename>mybb.log</filename>
+            shows you the many configuration files and class files
+            used in your execution environment.
+        </para>
+
+        <note>
+            <para>
+                You need to be aware of how BitBake parses curly braces.
+                If a recipe uses a closing curly brace within the function and
+                the character has no leading spaces, BitBake produces a parsing
+                error.
+                If you use a pair of curly braces in a shell function, the
+                closing curly brace must not be located at the start of the line
+                without leading spaces.
+            </para>
+
+            <para>
+                Here is an example that causes BitBake to produce a parsing
+                error:
+                <literallayout class='monospaced'>
+     fakeroot create_shar() {
+         cat &lt;&lt; "EOF" &gt; ${SDK_DEPLOY}/${TOOLCHAIN_OUTPUTNAME}.sh
+     usage()
+     {
+       echo "test"
+       ###### The following "}" at the start of the line causes a parsing error ######
+     }
+     EOF
+     }
+                </literallayout>
+                Writing the recipe this way avoids the error:
+                <literallayout class='monospaced'>
+     fakeroot create_shar() {
+         cat &lt;&lt; "EOF" &gt; ${SDK_DEPLOY}/${TOOLCHAIN_OUTPUTNAME}.sh
+     usage()
+     {
+       echo "test"
+       ######The following "}" with a leading space at the start of the line avoids the error ######
+      }
+     EOF
+     }
+                </literallayout>
+            </para>
+        </note>
+    </section>
+
+    <section id='locating-and-parsing-recipes'>
+        <title>Locating and Parsing Recipes</title>
+
+        <para>
+            During the configuration phase, BitBake will have set
+            <link linkend='var-BBFILES'><filename>BBFILES</filename></link>.
+            BitBake now uses it to construct a list of recipes to parse,
+            along with any append files (<filename>.bbappend</filename>)
+            to apply.
+            <filename>BBFILES</filename> is a space-separated list of
+            available files and supports wildcards.
+            An example would be:
+            <literallayout class='monospaced'>
+     BBFILES = "/path/to/bbfiles/*.bb /path/to/appends/*.bbappend"
+            </literallayout>
+            BitBake parses each recipe and append file located
+            with <filename>BBFILES</filename> and stores the values of
+            various variables into the datastore.
+            <note>
+                Append files are applied in the order they are encountered in
+                <filename>BBFILES</filename>.
+            </note>
+            For each file, a fresh copy of the base configuration is
+            made, then the recipe is parsed line by line.
+            Any inherit statements cause BitBake to find and
+            then parse class files (<filename>.bbclass</filename>)
+            using
+            <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
+            as the search path.
+            Finally, BitBake parses in order any append files found in
+            <filename>BBFILES</filename>.
+        </para>
+
+        <para>
+            One common convention is to use the recipe filename to define
+            pieces of metadata.
+            For example, in <filename>bitbake.conf</filename> the recipe
+            name and version are used to set the variables
+            <link linkend='var-PN'><filename>PN</filename></link> and
+            <link linkend='var-PV'><filename>PV</filename></link>:
+            <literallayout class='monospaced'>
+     PN = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[0] or 'defaultpkgname'}"
+     PV = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[1] or '1.0'}"
+            </literallayout>
+            In this example, a recipe called "something_1.2.3.bb" would set
+            <filename>PN</filename> to "something" and
+            <filename>PV</filename> to "1.2.3".
+        </para>
+
+        <para>
+            By the time parsing is complete for a recipe, BitBake
+            has a list of tasks that the recipe defines and a set of
+            data consisting of keys and values as well as
+            dependency information about the tasks.
+        </para>
+
+        <para>
+            BitBake does not need all of this information.
+            It only needs a small subset of the information to make
+            decisions about the recipe.
+            Consequently, BitBake caches the values in which it is
+            interested and does not store the rest of the information.
+            Experience has shown it is faster to re-parse the metadata than to
+            try and write it out to the disk and then reload it.
+        </para>
+
+        <para>
+            Where possible, subsequent BitBake commands reuse this cache of
+            recipe information.
+            The validity of this cache is determined by first computing a
+            checksum of the base configuration data (see
+            <link linkend='var-BB_HASHCONFIG_WHITELIST'><filename>BB_HASHCONFIG_WHITELIST</filename></link>)
+            and then checking if the checksum matches.
+            If that checksum matches what is in the cache and the recipe
+            and class files have not changed, Bitbake is able to use
+            the cache.
+            BitBake then reloads the cached information about the recipe
+            instead of reparsing it from scratch.
+        </para>
+
+        <para>
+            Recipe file collections exist to allow the user to
+            have multiple repositories of
+            <filename>.bb</filename> files that contain the same
+            exact package.
+            For example, one could easily use them to make one's
+            own local copy of an upstream repository, but with
+            custom modifications that one does not want upstream.
+            Here is an example:
+            <literallayout class='monospaced'>
+    BBFILES = "/stuff/openembedded/*/*.bb /stuff/openembedded.modified/*/*.bb"
+    BBFILE_COLLECTIONS = "upstream local"
+    BBFILE_PATTERN_upstream = "^/stuff/openembedded/"
+    BBFILE_PATTERN_local = "^/stuff/openembedded.modified/"
+    BBFILE_PRIORITY_upstream = "5"
+    BBFILE_PRIORITY_local = "10"
+            </literallayout>
+            <note>
+                The layers mechanism is now the preferred method of collecting
+                code.
+                While the collections code remains, its main use is to set layer
+                priorities and to deal with overlap (conflicts) between layers.
+            </note>
+        </para>
+    </section>
+
+    <section id='bb-bitbake-providers'>
+        <title>Providers</title>
+
+        <para>
+            Assuming BitBake has been instructed to execute a target
+            and that all the recipe files have been parsed, BitBake
+            starts to figure out how to build the target.
+            BitBake looks through the <filename>PROVIDES</filename> list
+            for each of the recipes.
+            A <filename>PROVIDES</filename> list is the list of names by which
+            the recipe can be known.
+            Each recipe's <filename>PROVIDES</filename> list is created
+            implicitly through the recipe's
+            <link linkend='var-PN'><filename>PN</filename></link> variable
+            and explicitly through the recipe's
+            <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
+            variable, which is optional.
+        </para>
+
+        <para>
+            When a recipe uses <filename>PROVIDES</filename>, that recipe's
+            functionality can be found under an alternative name or names other
+            than the implicit <filename>PN</filename> name.
+            As an example, suppose a recipe named <filename>keyboard_1.0.bb</filename>
+            contained the following:
+            <literallayout class='monospaced'>
+     PROVIDES += "fullkeyboard"
+            </literallayout>
+            The <filename>PROVIDES</filename> list for this recipe becomes
+            "keyboard", which is implicit, and "fullkeyboard", which is explicit.
+            Consequently, the functionality found in
+            <filename>keyboard_1.0.bb</filename> can be found under two
+            different names.
+        </para>
+    </section>
+
+    <section id='bb-bitbake-preferences'>
+        <title>Preferences</title>
+
+        <para>
+            The <filename>PROVIDES</filename> list is only part of the solution
+            for figuring out a target's recipes.
+            Because targets might have multiple providers, BitBake needs
+            to prioritize providers by determining provider preferences.
+        </para>
+
+        <para>
+            A common example in which a target has multiple providers
+            is "virtual/kernel", which is on the
+            <filename>PROVIDES</filename> list for each kernel recipe.
+            Each machine often selects the best kernel provider by using a
+            line similar to the following in the machine configuration file:
+            <literallayout class='monospaced'>
+     PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+            </literallayout>
+            The default
+            <link linkend='var-PREFERRED_PROVIDER'><filename>PREFERRED_PROVIDER</filename></link>
+            is the provider with the same name as the target.
+            Bitbake iterates through each target it needs to build and
+            resolves them and their dependencies using this process.
+        </para>
+
+        <para>
+            Understanding how providers are chosen is made complicated by the fact
+            that multiple versions might exist for a given provider.
+            BitBake defaults to the highest version of a provider.
+            Version comparisons are made using the same method as Debian.
+            You can use the
+            <link linkend='var-PREFERRED_VERSION'><filename>PREFERRED_VERSION</filename></link>
+            variable to specify a particular version.
+            You can influence the order by using the
+            <link linkend='var-DEFAULT_PREFERENCE'><filename>DEFAULT_PREFERENCE</filename></link>
+            variable.
+        </para>
+
+        <para>
+            By default, files have a preference of "0".
+            Setting <filename>DEFAULT_PREFERENCE</filename> to "-1" makes the
+            recipe unlikely to be used unless it is explicitly referenced.
+            Setting <filename>DEFAULT_PREFERENCE</filename> to "1" makes it
+            likely the recipe is used.
+            <filename>PREFERRED_VERSION</filename> overrides any
+            <filename>DEFAULT_PREFERENCE</filename> setting.
+            <filename>DEFAULT_PREFERENCE</filename> is often used to mark newer
+            and more experimental recipe versions until they have undergone
+            sufficient testing to be considered stable.
+        </para>
+
+        <para>
+            When there are multiple “versions” of a given recipe,
+            BitBake defaults to selecting the most recent
+            version, unless otherwise specified.
+            If the recipe in question has a
+            <link linkend='var-DEFAULT_PREFERENCE'><filename>DEFAULT_PREFERENCE</filename></link>
+            set lower than the other recipes (default is 0), then
+            it will not be selected.
+            This allows the person or persons maintaining
+            the repository of recipe files to specify
+            their preference for the default selected version.
+            Additionally, the user can specify their preferred version.
+        </para>
+
+        <para>
+            If the first recipe is named <filename>a_1.1.bb</filename>, then the
+            <link linkend='var-PN'><filename>PN</filename></link> variable
+            will be set to “a”, and the
+            <link linkend='var-PV'><filename>PV</filename></link>
+            variable will be set to 1.1.
+        </para>
+
+        <para>
+            Thus, if a recipe named <filename>a_1.2.bb</filename> exists, BitBake
+            will choose 1.2 by default.
+            However, if you define the following variable in a
+            <filename>.conf</filename> file that BitBake parses, you
+            can change that preference:
+            <literallayout class='monospaced'>
+     PREFERRED_VERSION_a = "1.1"
+            </literallayout>
+        </para>
+
+        <note>
+            <para>
+                It is common for a recipe to provide two versions -- a stable,
+                numbered (and preferred) version, and a version that is
+                automatically checked out from a source code repository that
+                is considered more "bleeding edge" but can be selected only
+                explicitly.
+            </para>
+
+            <para>
+                For example, in the OpenEmbedded codebase, there is a standard,
+                versioned recipe file for BusyBox,
+                <filename>busybox_1.22.1.bb</filename>,
+                but there is also a Git-based version,
+                <filename>busybox_git.bb</filename>, which explicitly contains the line
+                <literallayout class='monospaced'>
+    DEFAULT_PREFERENCE = "-1"
+                </literallayout>
+                to ensure that the numbered, stable version is always preferred
+                unless the developer selects otherwise.
+            </para>
+        </note>
+    </section>
+
+    <section id='bb-bitbake-dependencies'>
+        <title>Dependencies</title>
+
+        <para>
+            Each target BitBake builds consists of multiple tasks such as
+            <filename>fetch</filename>, <filename>unpack</filename>,
+            <filename>patch</filename>, <filename>configure</filename>,
+            and <filename>compile</filename>.
+            For best performance on multi-core systems, BitBake considers each
+            task as an independent
+            entity with its own set of dependencies.
+        </para>
+
+        <para>
+            Dependencies are defined through several variables.
+            You can find information about variables BitBake uses in
+            the <link linkend='ref-variables-glos'>Variables Glossary</link>
+            near the end of this manual.
+            At a basic level, it is sufficient to know that BitBake uses the
+            <link linkend='var-DEPENDS'><filename>DEPENDS</filename></link> and
+            <link linkend='var-RDEPENDS'><filename>RDEPENDS</filename></link> variables when
+            calculating dependencies.
+        </para>
+
+        <para>
+            For more information on how BitBake handles dependencies, see the
+            "<link linkend='dependencies'>Dependencies</link>" section.
+        </para>
+    </section>
+
+    <section id='ref-bitbake-tasklist'>
+        <title>The Task List</title>
+
+        <para>
+            Based on the generated list of providers and the dependency information,
+            BitBake can now calculate exactly what tasks it needs to run and in what
+            order it needs to run them.
+            The
+            "<link linkend='executing-tasks'>Executing Tasks</link>" section has more
+            information on how BitBake chooses which task to execute next.
+        </para>
+
+        <para>
+            The build now starts with BitBake forking off threads up to the limit set in the
+            <link linkend='var-BB_NUMBER_THREADS'><filename>BB_NUMBER_THREADS</filename></link>
+            variable.
+            BitBake continues to fork threads as long as there are tasks ready to run,
+            those tasks have all their dependencies met, and the thread threshold has not been
+            exceeded.
+        </para>
+
+        <para>
+            It is worth noting that you can greatly speed up the build time by properly setting
+            the <filename>BB_NUMBER_THREADS</filename> variable.
+        </para>
+
+        <para>
+            As each task completes, a timestamp is written to the directory specified by the
+            <link linkend='var-STAMP'><filename>STAMP</filename></link> variable.
+            On subsequent runs, BitBake looks in the build directory within
+            <filename>tmp/stamps</filename> and does not rerun
+            tasks that are already completed unless a timestamp is found to be invalid.
+            Currently, invalid timestamps are only considered on a per
+            recipe file basis.
+            So, for example, if the configure stamp has a timestamp greater than the
+            compile timestamp for a given target, then the compile task would rerun.
+            Running the compile task again, however, has no effect on other providers
+            that depend on that target.
+        </para>
+
+        <para>
+            The exact format of the stamps is partly configurable.
+            In modern versions of BitBake, a hash is appended to the
+            stamp so that if the configuration changes, the stamp becomes
+            invalid and the task is automatically rerun.
+            This hash, or signature used, is governed by the signature policy
+            that is configured (see the
+            "<link linkend='checksums'>Checksums (Signatures)</link>"
+            section for information).
+            It is also possible to append extra metadata to the stamp using
+            the <filename>[stamp-extra-info]</filename> task flag.
+            For example, OpenEmbedded uses this flag to make some tasks machine-specific.
+        </para>
+
+        <note>
+            Some tasks are marked as "nostamp" tasks.
+            No timestamp file is created when these tasks are run.
+            Consequently, "nostamp" tasks are always rerun.
+        </note>
+
+        <para>
+            For more information on tasks, see the
+            "<link linkend='tasks'>Tasks</link>" section.
+        </para>
+    </section>
+
+    <section id='executing-tasks'>
+        <title>Executing Tasks</title>
+
+        <para>
+            Tasks can be either a shell task or a Python task.
+            For shell tasks, BitBake writes a shell script to
+            <filename>${</filename><link linkend='var-T'><filename>T</filename></link><filename>}/run.do_taskname.pid</filename>
+            and then executes the script.
+            The generated shell script contains all the exported variables,
+            and the shell functions with all variables expanded.
+            Output from the shell script goes to the file
+            <filename>${T}/log.do_taskname.pid</filename>.
+            Looking at the expanded shell functions in the run file and
+            the output in the log files is a useful debugging technique.
+        </para>
+
+        <para>
+            For Python tasks, BitBake executes the task internally and logs
+            information to the controlling terminal.
+            Future versions of BitBake will write the functions to files
+            similar to the way shell tasks are handled.
+            Logging will be handled in a way similar to shell tasks as well.
+        </para>
+
+        <para>
+            The order in which BitBake runs the tasks is controlled by its
+            task scheduler.
+            It is possible to configure the scheduler and define custom
+            implementations for specific use cases.
+            For more information, see these variables that control the
+            behavior:
+            <itemizedlist>
+                <listitem><para>
+                    <link linkend='var-BB_SCHEDULER'><filename>BB_SCHEDULER</filename></link>
+                    </para></listitem>
+                <listitem><para>
+                    <link linkend='var-BB_SCHEDULERS'><filename>BB_SCHEDULERS</filename></link>
+                    </para></listitem>
+            </itemizedlist>
+            It is possible to have functions run before and after a task's main
+            function.
+            This is done using the <filename>[prefuncs]</filename>
+            and <filename>[postfuncs]</filename> flags of the task
+            that lists the functions to run.
+        </para>
+    </section>
+
+    <section id='checksums'>
+        <title>Checksums (Signatures)</title>
+
+        <para>
+            A checksum is a unique signature of a task's inputs.
+            The signature of a task can be used to determine if a task
+            needs to be run.
+            Because it is a change in a task's inputs that triggers running
+            the task, BitBake needs to detect all the inputs to a given task.
+            For shell tasks, this turns out to be fairly easy because
+            BitBake generates a "run" shell script for each task and
+            it is possible to create a checksum that gives you a good idea of when
+            the task's data changes.
+        </para>
+
+        <para>
+            To complicate the problem, some things should not be included in
+            the checksum.
+            First, there is the actual specific build path of a given task -
+            the working directory.
+            It does not matter if the working directory changes because it should not
+            affect the output for target packages.
+            The simplistic approach for excluding the working directory is to set
+            it to some fixed value and create the checksum for the "run" script.
+            BitBake goes one step better and uses the
+            <link linkend='var-BB_HASHBASE_WHITELIST'><filename>BB_HASHBASE_WHITELIST</filename></link>
+            variable to define a list of variables that should never be included
+            when generating the signatures.
+        </para>
+
+        <para>
+            Another problem results from the "run" scripts containing functions that
+            might or might not get called.
+            The incremental build solution contains code that figures out dependencies
+            between shell functions.
+            This code is used to prune the "run" scripts down to the minimum set,
+            thereby alleviating this problem and making the "run" scripts much more
+            readable as a bonus.
+        </para>
+
+        <para>
+            So far we have solutions for shell scripts.
+            What about Python tasks?
+            The same approach applies even though these tasks are more difficult.
+            The process needs to figure out what variables a Python function accesses
+            and what functions it calls.
+            Again, the incremental build solution contains code that first figures out
+            the variable and function dependencies, and then creates a checksum for the data
+            used as the input to the task.
+        </para>
+
+        <para>
+            Like the working directory case, situations exist where dependencies
+            should be ignored.
+            For these cases, you can instruct the build process to ignore a dependency
+            by using a line like the following:
+            <literallayout class='monospaced'>
+     PACKAGE_ARCHS[vardepsexclude] = "MACHINE"
+            </literallayout>
+            This example ensures that the <filename>PACKAGE_ARCHS</filename> variable does not
+            depend on the value of <filename>MACHINE</filename>, even if it does reference it.
+        </para>
+
+        <para>
+            Equally, there are cases where we need to add dependencies BitBake
+            is not able to find.
+            You can accomplish this by using a line like the following:
+            <literallayout class='monospaced'>
+      PACKAGE_ARCHS[vardeps] = "MACHINE"
+            </literallayout>
+            This example explicitly adds the <filename>MACHINE</filename> variable as a
+            dependency for <filename>PACKAGE_ARCHS</filename>.
+        </para>
+
+        <para>
+            Consider a case with in-line Python, for example, where BitBake is not
+            able to figure out dependencies.
+            When running in debug mode (i.e. using <filename>-DDD</filename>), BitBake
+            produces output when it discovers something for which it cannot figure out
+            dependencies.
+        </para>
+
+        <para>
+            Thus far, this section has limited discussion to the direct inputs into a task.
+            Information based on direct inputs is referred to as the "basehash" in the
+            code.
+            However, there is still the question of a task's indirect inputs - the
+            things that were already built and present in the build directory.
+            The checksum (or signature) for a particular task needs to add the hashes
+            of all the tasks on which the particular task depends.
+            Choosing which dependencies to add is a policy decision.
+            However, the effect is to generate a master checksum that combines the basehash
+            and the hashes of the task's dependencies.
+        </para>
+
+        <para>
+            At the code level, there are a variety of ways both the basehash and the
+            dependent task hashes can be influenced.
+            Within the BitBake configuration file, we can give BitBake some extra information
+            to help it construct the basehash.
+            The following statement effectively results in a list of global variable
+            dependency excludes - variables never included in any checksum.
+            This example uses variables from OpenEmbedded to help illustrate
+            the concept:
+            <literallayout class='monospaced'>
+     BB_HASHBASE_WHITELIST ?= "TMPDIR FILE PATH PWD BB_TASKHASH BBPATH DL_DIR \
+         SSTATE_DIR THISDIR FILESEXTRAPATHS FILE_DIRNAME HOME LOGNAME SHELL TERM \
+         USER FILESPATH STAGING_DIR_HOST STAGING_DIR_TARGET COREBASE PRSERV_HOST \
+         PRSERV_DUMPDIR PRSERV_DUMPFILE PRSERV_LOCKDOWN PARALLEL_MAKE \
+         CCACHE_DIR EXTERNAL_TOOLCHAIN CCACHE CCACHE_DISABLE LICENSE_PATH SDKPKGSUFFIX"
+            </literallayout>
+            The previous example excludes the work directory, which is part of
+            <filename>TMPDIR</filename>.
+        </para>
+
+        <para>
+            The rules for deciding which hashes of dependent tasks to include through
+            dependency chains are more complex and are generally accomplished with a
+            Python function.
+            The code in <filename>meta/lib/oe/sstatesig.py</filename> shows two examples
+            of this and also illustrates how you can insert your own policy into the system
+            if so desired.
+            This file defines the two basic signature generators OpenEmbedded Core
+            uses:  "OEBasic" and "OEBasicHash".
+            By default, there is a dummy "noop" signature handler enabled in BitBake.
+            This means that behavior is unchanged from previous versions.
+            <filename>OE-Core</filename> uses the "OEBasicHash" signature handler by default
+            through this setting in the <filename>bitbake.conf</filename> file:
+            <literallayout class='monospaced'>
+     BB_SIGNATURE_HANDLER ?= "OEBasicHash"
+            </literallayout>
+            The "OEBasicHash" <filename>BB_SIGNATURE_HANDLER</filename> is the same as the
+            "OEBasic" version but adds the task hash to the stamp files.
+            This results in any metadata change that changes the task hash, automatically
+            causing the task to be run again.
+            This removes the need to bump
+            <link linkend='var-PR'><filename>PR</filename></link>
+            values, and changes to metadata automatically ripple across the build.
+        </para>
+
+        <para>
+            It is also worth noting that the end result of these signature generators is to
+            make some dependency and hash information available to the build.
+            This information includes:
+            <itemizedlist>
+                <listitem><para><filename>BB_BASEHASH_task-</filename><replaceable>taskname</replaceable>:
+                    The base hashes for each task in the recipe.
+                    </para></listitem>
+                <listitem><para><filename>BB_BASEHASH_</filename><replaceable>filename</replaceable><filename>:</filename><replaceable>taskname</replaceable>:
+                    The base hashes for each dependent task.
+                    </para></listitem>
+                <listitem><para><filename>BBHASHDEPS_</filename><replaceable>filename</replaceable><filename>:</filename><replaceable>taskname</replaceable>:
+                    The task dependencies for each task.
+                    </para></listitem>
+                <listitem><para><filename>BB_TASKHASH</filename>:
+                    The hash of the currently running task.
+                    </para></listitem>
+            </itemizedlist>
+        </para>
+
+        <para>
+            It is worth noting that BitBake's "-S" option lets you
+            debug Bitbake's processing of signatures.
+            The options passed to -S allow different debugging modes
+            to be used, either using BitBake's own debug functions
+            or possibly those defined in the metadata/signature handler
+            itself.
+            The simplest parameter to pass is "none", which causes a
+            set of signature information to be written out into
+            <filename>STAMPS_DIR</filename>
+            corresponding to the targets specified.
+            The other currently available parameter is "printdiff",
+            which causes BitBake to try to establish the closest
+            signature match it can (e.g. in the sstate cache) and then
+            run <filename>bitbake-diffsigs</filename> over the matches
+            to determine the stamps and delta where these two
+            stamp trees diverge.
+            <note>
+                It is likely that future versions of BitBake will
+                provide other signature handlers triggered through
+                additional "-S" parameters.
+            </note>
+        </para>
+
+        <para>
+            You can find more information on checksum metadata in the
+            "<link linkend='task-checksums-and-setscene'>Task Checksums and Setscene</link>"
+            section.
+        </para>
+    </section>
+
+    <section id='setscene'>
+        <title>Setscene</title>
+
+        <para>
+            The setscene process enables BitBake to handle "pre-built" artifacts.
+            The ability to handle and reuse these artifacts allows BitBake
+            the luxury of not having to build something from scratch every time.
+            Instead, BitBake can use, when possible, existing build artifacts.
+        </para>
+
+        <para>
+            BitBake needs to have reliable data indicating whether or not an
+            artifact is compatible.
+            Signatures, described in the previous section, provide an ideal
+            way of representing whether an artifact is compatible.
+            If a signature is the same, an object can be reused.
+        </para>
+
+        <para>
+            If an object can be reused, the problem then becomes how to
+            replace a given task or set of tasks with the pre-built artifact.
+            BitBake solves the problem with the "setscene" process.
+        </para>
+
+        <para>
+            When BitBake is asked to build a given target, before building anything,
+            it first asks whether cached information is available for any of the
+            targets it's building, or any of the intermediate targets.
+            If cached information is available, BitBake uses this information instead of
+            running the main tasks.
+        </para>
+
+        <para>
+            BitBake first calls the function defined by the
+            <link linkend='var-BB_HASHCHECK_FUNCTION'><filename>BB_HASHCHECK_FUNCTION</filename></link>
+            variable with a list of tasks and corresponding
+            hashes it wants to build.
+            This function is designed to be fast and returns a list
+            of the tasks for which it believes in can obtain artifacts.
+        </para>
+
+        <para>
+            Next, for each of the tasks that were returned as possibilities,
+            BitBake executes a setscene version of the task that the possible
+            artifact covers.
+            Setscene versions of a task have the string "_setscene" appended to the
+            task name.
+            So, for example, the task with the name <filename>xxx</filename> has
+            a setscene task named <filename>xxx_setscene</filename>.
+            The setscene version of the task executes and provides the necessary
+            artifacts returning either success or failure.
+        </para>
+
+        <para>
+            As previously mentioned, an artifact can cover more than one task.
+            For example, it is pointless to obtain a compiler if you
+            already have the compiled binary.
+            To handle this, BitBake calls the
+            <link linkend='var-BB_SETSCENE_DEPVALID'><filename>BB_SETSCENE_DEPVALID</filename></link>
+            function for each successful setscene task to know whether or not it needs
+            to obtain the dependencies of that task.
+        </para>
+
+        <para>
+            Finally, after all the setscene tasks have executed, BitBake calls the
+            function listed in
+            <link linkend='var-BB_SETSCENE_VERIFY_FUNCTION2'><filename>BB_SETSCENE_VERIFY_FUNCTION2</filename></link>
+            with the list of tasks BitBake thinks has been "covered".
+            The metadata can then ensure that this list is correct and can
+            inform BitBake that it wants specific tasks to be run regardless
+            of the setscene result.
+        </para>
+
+        <para>
+            You can find more information on setscene metadata in the
+            "<link linkend='task-checksums-and-setscene'>Task Checksums and Setscene</link>"
+            section.
+        </para>
+    </section>
+</chapter>

bitbake/doc/bitbake-user-manual/bitbake-user-manual-fetching.xml

@@ -0,0 +1,823 @@
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<chapter>
+<title>File Download Support</title>
+
+    <para>
+        BitBake's fetch module is a standalone piece of library code
+        that deals with the intricacies of downloading source code
+        and files from remote systems.
+        Fetching source code is one of the cornerstones of building software.
+        As such, this module forms an important part of BitBake.
+    </para>
+
+    <para>
+        The current fetch module is called "fetch2" and refers to the
+        fact that it is the second major version of the API.
+        The original version is obsolete and has been removed from the codebase.
+        Thus, in all cases, "fetch" refers to "fetch2" in this
+        manual.
+    </para>
+
+    <section id='the-download-fetch'>
+        <title>The Download (Fetch)</title>
+
+        <para>
+            BitBake takes several steps when fetching source code or files.
+            The fetcher codebase deals with two distinct processes in order:
+            obtaining the files from somewhere (cached or otherwise)
+            and then unpacking those files into a specific location and
+            perhaps in a specific way.
+            Getting and unpacking the files is often optionally followed
+            by patching.
+            Patching, however, is not covered by this module.
+        </para>
+
+        <para>
+            The code to execute the first part of this process, a fetch,
+            looks something like the following:
+            <literallayout class='monospaced'>
+     src_uri = (d.getVar('SRC_URI') or "").split()
+     fetcher = bb.fetch2.Fetch(src_uri, d)
+     fetcher.download()
+            </literallayout>
+            This code sets up an instance of the fetch class.
+            The instance uses a space-separated list of URLs from the
+            <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
+            variable and then calls the <filename>download</filename>
+            method to download the files.
+        </para>
+
+        <para>
+            The instantiation of the fetch class is usually followed by:
+            <literallayout class='monospaced'>
+     rootdir = l.getVar('WORKDIR')
+     fetcher.unpack(rootdir)
+            </literallayout>
+            This code unpacks the downloaded files to the
+            specified by <filename>WORKDIR</filename>.
+            <note>
+                For convenience, the naming in these examples matches
+                the variables used by OpenEmbedded.
+                If you want to see the above code in action, examine
+                the OpenEmbedded class file <filename>base.bbclass</filename>.
+            </note>
+            The <filename>SRC_URI</filename> and <filename>WORKDIR</filename>
+            variables are not hardcoded into the fetcher, since those fetcher
+            methods can be (and are) called with different variable names.
+            In OpenEmbedded for example, the shared state (sstate) code uses
+            the fetch module to fetch the sstate files.
+        </para>
+
+        <para>
+            When the <filename>download()</filename> method is called,
+            BitBake tries to resolve the URLs by looking for source files
+            in a specific search order:
+            <itemizedlist>
+                <listitem><para><emphasis>Pre-mirror Sites:</emphasis>
+                    BitBake first uses pre-mirrors to try and find source files.
+                    These locations are defined using the
+                    <link linkend='var-PREMIRRORS'><filename>PREMIRRORS</filename></link>
+                    variable.
+                    </para></listitem>
+                <listitem><para><emphasis>Source URI:</emphasis>
+                    If pre-mirrors fail, BitBake uses the original URL (e.g from
+                    <filename>SRC_URI</filename>).
+                    </para></listitem>
+                <listitem><para><emphasis>Mirror Sites:</emphasis>
+                    If fetch failures occur, BitBake next uses mirror locations as
+                    defined by the
+                    <link linkend='var-MIRRORS'><filename>MIRRORS</filename></link>
+                    variable.
+                    </para></listitem>
+            </itemizedlist>
+        </para>
+
+        <para>
+            For each URL passed to the fetcher, the fetcher
+            calls the submodule that handles that particular URL type.
+            This behavior can be the source of some confusion when you
+            are providing URLs for the <filename>SRC_URI</filename>
+            variable.
+            Consider the following two URLs:
+            <literallayout class='monospaced'>
+     http://git.yoctoproject.org/git/poky;protocol=git
+     git://git.yoctoproject.org/git/poky;protocol=http
+            </literallayout>
+            In the former case, the URL is passed to the
+            <filename>wget</filename> fetcher, which does not
+            understand "git".
+            Therefore, the latter case is the correct form since the
+            Git fetcher does know how to use HTTP as a transport.
+        </para>
+
+        <para>
+            Here are some examples that show commonly used mirror
+            definitions:
+            <literallayout class='monospaced'>
+     PREMIRRORS ?= "\
+         bzr://.*/.*   http://somemirror.org/sources/ \n \
+         cvs://.*/.*   http://somemirror.org/sources/ \n \
+         git://.*/.*   http://somemirror.org/sources/ \n \
+         hg://.*/.*    http://somemirror.org/sources/ \n \
+         osc://.*/.*   http://somemirror.org/sources/ \n \
+         p4://.*/.*    http://somemirror.org/sources/ \n \
+         svn://.*/.*   http://somemirror.org/sources/ \n"
+
+     MIRRORS =+ "\
+         ftp://.*/.*      http://somemirror.org/sources/ \n \
+         http://.*/.*     http://somemirror.org/sources/ \n \
+         https://.*/.*    http://somemirror.org/sources/ \n"
+            </literallayout>
+            It is useful to note that BitBake supports
+            cross-URLs.
+            It is possible to mirror a Git repository on an HTTP
+            server as a tarball.
+            This is what the <filename>git://</filename> mapping in
+            the previous example does.
+        </para>
+
+        <para>
+            Since network accesses are slow, Bitbake maintains a
+            cache of files downloaded from the network.
+            Any source files that are not local (i.e.
+            downloaded from the Internet) are placed into the download
+            directory, which is specified by the
+            <link linkend='var-DL_DIR'><filename>DL_DIR</filename></link>
+            variable.
+        </para>
+
+        <para>
+            File integrity is of key importance for reproducing builds.
+            For non-local archive downloads, the fetcher code can verify
+            SHA-256 and MD5 checksums to ensure the archives have been
+            downloaded correctly.
+            You can specify these checksums by using the
+            <filename>SRC_URI</filename> variable with the appropriate
+            varflags as follows:
+            <literallayout class='monospaced'>
+     SRC_URI[md5sum] = "<replaceable>value</replaceable>"
+     SRC_URI[sha256sum] = "<replaceable>value</replaceable>"
+            </literallayout>
+            You can also specify the checksums as parameters on the
+            <filename>SRC_URI</filename> as shown below:
+            <literallayout class='monospaced'>
+     SRC_URI = "http://example.com/foobar.tar.bz2;md5sum=4a8e0f237e961fd7785d19d07fdb994d"
+            </literallayout>
+            If multiple URIs exist, you can specify the checksums either
+            directly as in the previous example, or you can name the URLs.
+            The following syntax shows how you name the URIs:
+            <literallayout class='monospaced'>
+     SRC_URI = "http://example.com/foobar.tar.bz2;name=foo"
+     SRC_URI[foo.md5sum] = 4a8e0f237e961fd7785d19d07fdb994d
+            </literallayout>
+            After a file has been downloaded and has had its checksum checked,
+            a ".done" stamp is placed in <filename>DL_DIR</filename>.
+            BitBake uses this stamp during subsequent builds to avoid
+            downloading or comparing a checksum for the file again.
+            <note>
+                It is assumed that local storage is safe from data corruption.
+                If this were not the case, there would be bigger issues to worry about.
+            </note>
+        </para>
+
+        <para>
+            If
+            <link linkend='var-BB_STRICT_CHECKSUM'><filename>BB_STRICT_CHECKSUM</filename></link>
+            is set, any download without a checksum triggers an
+            error message.
+            The
+            <link linkend='var-BB_NO_NETWORK'><filename>BB_NO_NETWORK</filename></link>
+            variable can be used to make any attempted network access a fatal
+            error, which is useful for checking that mirrors are complete
+            as well as other things.
+        </para>
+    </section>
+
+    <section id='bb-the-unpack'>
+        <title>The Unpack</title>
+
+        <para>
+            The unpack process usually immediately follows the download.
+            For all URLs except Git URLs, BitBake uses the common
+            <filename>unpack</filename> method.
+        </para>
+
+        <para>
+            A number of parameters exist that you can specify within the
+            URL to govern the behavior of the unpack stage:
+            <itemizedlist>
+                <listitem><para><emphasis>unpack:</emphasis>
+                    Controls whether the URL components are unpacked.
+                    If set to "1", which is the default, the components
+                    are unpacked.
+                    If set to "0", the unpack stage leaves the file alone.
+                    This parameter is useful when you want an archive to be
+                    copied in and not be unpacked.
+                    </para></listitem>
+                <listitem><para><emphasis>dos:</emphasis>
+                    Applies to <filename>.zip</filename> and
+                    <filename>.jar</filename> files and specifies whether to
+                    use DOS line ending conversion on text files.
+                    </para></listitem>
+                <listitem><para><emphasis>basepath:</emphasis>
+                    Instructs the unpack stage to strip the specified
+                    directories from the source path when unpacking.
+                    </para></listitem>
+                <listitem><para><emphasis>subdir:</emphasis>
+                    Unpacks the specific URL to the specified subdirectory
+                    within the root directory.
+                    </para></listitem>
+            </itemizedlist>
+            The unpack call automatically decompresses and extracts files
+            with ".Z", ".z", ".gz", ".xz", ".zip", ".jar", ".ipk", ".rpm".
+            ".srpm", ".deb" and ".bz2" extensions as well as various combinations
+            of tarball extensions.
+        </para>
+
+        <para>
+            As mentioned, the Git fetcher has its own unpack method that
+            is optimized to work with Git trees.
+            Basically, this method works by cloning the tree into the final
+            directory.
+            The process is completed using references so that there is
+            only one central copy of the Git metadata needed.
+        </para>
+    </section>
+
+    <section id='bb-fetchers'>
+        <title>Fetchers</title>
+
+        <para>
+            As mentioned earlier, the URL prefix determines which
+            fetcher submodule BitBake uses.
+            Each submodule can support different URL parameters,
+            which are described in the following sections.
+        </para>
+
+        <section id='local-file-fetcher'>
+            <title>Local file fetcher (<filename>file://</filename>)</title>
+
+            <para>
+                This submodule handles URLs that begin with
+                <filename>file://</filename>.
+                The filename you specify within the URL can be
+                either an absolute or relative path to a file.
+                If the filename is relative, the contents of the
+                <link linkend='var-FILESPATH'><filename>FILESPATH</filename></link>
+                variable is used in the same way
+                <filename>PATH</filename> is used to find executables.
+                If the file cannot be found, it is assumed that it is available in
+                <link linkend='var-DL_DIR'><filename>DL_DIR</filename></link>
+                by the time the <filename>download()</filename> method is called.
+            </para>
+
+            <para>
+                If you specify a directory, the entire directory is
+                unpacked.
+            </para>
+
+            <para>
+                Here are a couple of example URLs, the first relative and
+                the second absolute:
+                <literallayout class='monospaced'>
+     SRC_URI = "file://relativefile.patch"
+     SRC_URI = "file:///Users/ich/very_important_software"
+                </literallayout>
+            </para>
+        </section>
+
+        <section id='http-ftp-fetcher'>
+            <title>HTTP/FTP wget fetcher (<filename>http://</filename>, <filename>ftp://</filename>, <filename>https://</filename>)</title>
+
+            <para>
+                This fetcher obtains files from web and FTP servers.
+                Internally, the fetcher uses the wget utility.
+            </para>
+
+            <para>
+                The executable and parameters used are specified by the
+                <filename>FETCHCMD_wget</filename> variable, which defaults
+                to sensible values.
+                The fetcher supports a parameter "downloadfilename" that
+                allows the name of the downloaded file to be specified.
+                Specifying the name of the downloaded file is useful
+                for avoiding collisions in
+                <link linkend='var-DL_DIR'><filename>DL_DIR</filename></link>
+                when dealing with multiple files that have the same name.
+            </para>
+
+            <para>
+                Some example URLs are as follows:
+                <literallayout class='monospaced'>
+     SRC_URI = "http://oe.handhelds.org/not_there.aac"
+     SRC_URI = "ftp://oe.handhelds.org/not_there_as_well.aac"
+     SRC_URI = "ftp://you@oe.handhelds.org/home/you/secret.plan"
+                </literallayout>
+            </para>
+            <note>
+               Because URL parameters are delimited by semi-colons, this can
+               introduce ambiguity when parsing URLs that also contain semi-colons,
+               for example:
+                <literallayout class='monospaced'>
+     SRC_URI = "http://abc123.org/git/?p=gcc/gcc.git;a=snapshot;h=a5dd47"
+                </literallayout>
+               Such URLs should should be modified by replacing semi-colons with '&amp;' characters:
+               <literallayout class='monospaced'>
+     SRC_URI = "http://abc123.org/git/?p=gcc/gcc.git&amp;a=snapshot&amp;h=a5dd47"
+                </literallayout>
+                In most cases this should work. Treating semi-colons and '&amp;' in queries
+                identically is recommended by the World Wide Web Consortium (W3C).
+                Note that due to the nature of the URL, you may have to specify the name
+                of the downloaded file as well:
+              <literallayout class='monospaced'>
+     SRC_URI = "http://abc123.org/git/?p=gcc/gcc.git&amp;a=snapshot&amp;h=a5dd47;downloadfilename=myfile.bz2"
+                </literallayout>
+            </note>
+        </section>
+
+        <section id='cvs-fetcher'>
+            <title>CVS fetcher (<filename>(cvs://</filename>)</title>
+
+            <para>
+                This submodule handles checking out files from the
+                CVS version control system.
+                You can configure it using a number of different variables:
+                <itemizedlist>
+                    <listitem><para><emphasis><filename>FETCHCMD_cvs</filename>:</emphasis>
+                        The name of the executable to use when running
+                        the <filename>cvs</filename> command.
+                        This name is usually "cvs".
+                        </para></listitem>
+                    <listitem><para><emphasis><filename>SRCDATE</filename>:</emphasis>
+                        The date to use when fetching the CVS source code.
+                        A special value of "now" causes the checkout to
+                        be updated on every build.
+                        </para></listitem>
+                    <listitem><para><emphasis><link linkend='var-CVSDIR'><filename>CVSDIR</filename></link>:</emphasis>
+                        Specifies where a temporary checkout is saved.
+                        The location is often <filename>DL_DIR/cvs</filename>.
+                        </para></listitem>
+                    <listitem><para><emphasis><filename>CVS_PROXY_HOST</filename>:</emphasis>
+                        The name to use as a "proxy=" parameter to the
+                        <filename>cvs</filename> command.
+                        </para></listitem>
+                    <listitem><para><emphasis><filename>CVS_PROXY_PORT</filename>:</emphasis>
+                        The port number to use as a "proxyport=" parameter to
+                        the <filename>cvs</filename> command.
+                        </para></listitem>
+                </itemizedlist>
+                As well as the standard username and password URL syntax,
+                you can also configure the fetcher with various URL parameters:
+            </para>
+
+            <para>
+                The supported parameters are as follows:
+                <itemizedlist>
+                    <listitem><para><emphasis>"method":</emphasis>
+                        The protocol over which to communicate with the CVS
+                        server.
+                        By default, this protocol is "pserver".
+                        If "method" is set to "ext", BitBake examines the
+                        "rsh" parameter and sets <filename>CVS_RSH</filename>.
+                        You can use "dir" for local directories.
+                        </para></listitem>
+                    <listitem><para><emphasis>"module":</emphasis>
+                        Specifies the module to check out.
+                        You must supply this parameter.
+                        </para></listitem>
+                    <listitem><para><emphasis>"tag":</emphasis>
+                        Describes which CVS TAG should be used for
+                        the checkout.
+                        By default, the TAG is empty.
+                        </para></listitem>
+                    <listitem><para><emphasis>"date":</emphasis>
+                        Specifies a date.
+                        If no "date" is specified, the
+                        <link linkend='var-SRCDATE'><filename>SRCDATE</filename></link>
+                        of the configuration is used to checkout a specific date.
+                        The special value of "now" causes the checkout to be
+                        updated on every build.
+                        </para></listitem>
+                    <listitem><para><emphasis>"localdir":</emphasis>
+                        Used to rename the module.
+                        Effectively, you are renaming the output directory
+                        to which the module is unpacked.
+                        You are forcing the module into a special
+                        directory relative to
+                        <link linkend='var-CVSDIR'><filename>CVSDIR</filename></link>.
+                        </para></listitem>
+                    <listitem><para><emphasis>"rsh"</emphasis>
+                        Used in conjunction with the "method" parameter.
+                        </para></listitem>
+                    <listitem><para><emphasis>"scmdata":</emphasis>
+                        Causes the CVS metadata to be maintained in the tarball
+                        the fetcher creates when set to "keep".
+                        The tarball is expanded into the work directory.
+                        By default, the CVS metadata is removed.
+                        </para></listitem>
+                    <listitem><para><emphasis>"fullpath":</emphasis>
+                        Controls whether the resulting checkout is at the
+                        module level, which is the default, or is at deeper
+                        paths.
+                        </para></listitem>
+                    <listitem><para><emphasis>"norecurse":</emphasis>
+                        Causes the fetcher to only checkout the specified
+                        directory with no recurse into any subdirectories.
+                        </para></listitem>
+                    <listitem><para><emphasis>"port":</emphasis>
+                        The port to which the CVS server connects.
+                        </para></listitem>
+                </itemizedlist>
+                Some example URLs are as follows:
+                <literallayout class='monospaced'>
+     SRC_URI = "cvs://CVSROOT;module=mymodule;tag=some-version;method=ext"
+     SRC_URI = "cvs://CVSROOT;module=mymodule;date=20060126;localdir=usethat"
+                </literallayout>
+            </para>
+        </section>
+
+        <section id='svn-fetcher'>
+            <title>Subversion (SVN) Fetcher (<filename>svn://</filename>)</title>
+
+            <para>
+                This fetcher submodule fetches code from the
+                Subversion source control system.
+                The executable used is specified by
+                <filename>FETCHCMD_svn</filename>, which defaults
+                to "svn".
+                The fetcher's temporary working directory is set by
+                <link linkend='var-SVNDIR'><filename>SVNDIR</filename></link>,
+                which is usually <filename>DL_DIR/svn</filename>.
+            </para>
+
+            <para>
+                The supported parameters are as follows:
+                <itemizedlist>
+                    <listitem><para><emphasis>"module":</emphasis>
+                        The name of the svn module to checkout.
+                        You must provide this parameter.
+                        You can think of this parameter as the top-level
+                        directory of the repository data you want.
+                        </para></listitem>
+                    <listitem><para><emphasis>"path_spec":</emphasis>
+                        A specific directory in which to checkout the
+                        specified svn module.
+                        </para></listitem>
+                    <listitem><para><emphasis>"protocol":</emphasis>
+                        The protocol to use, which defaults to "svn".
+                        If "protocol" is set to "svn+ssh", the "ssh"
+                        parameter is also used.
+                        </para></listitem>
+                    <listitem><para><emphasis>"rev":</emphasis>
+                        The revision of the source code to checkout.
+                        </para></listitem>
+                    <listitem><para><emphasis>"scmdata":</emphasis>
+                        Causes the “.svn” directories to be available during
+                        compile-time when set to "keep".
+                        By default, these directories are removed.
+                        </para></listitem>
+                    <listitem><para><emphasis>"ssh":</emphasis>
+                        An optional parameter used when "protocol" is set
+                        to "svn+ssh".
+                        You can use this parameter to specify the ssh
+                        program used by svn.
+                        </para></listitem>
+                    <listitem><para><emphasis>"transportuser":</emphasis>
+                        When required, sets the username for the transport.
+                        By default, this parameter is empty.
+                        The transport username is different than the username
+                        used in the main URL, which is passed to the subversion
+                        command.
+                        </para></listitem>
+                </itemizedlist>
+                Following are three examples using svn:
+                <literallayout class='monospaced'>
+     SRC_URI = "svn://myrepos/proj1;module=vip;protocol=http;rev=667"
+     SRC_URI = "svn://myrepos/proj1;module=opie;protocol=svn+ssh"
+     SRC_URI = "svn://myrepos/proj1;module=trunk;protocol=http;path_spec=${MY_DIR}/proj1"
+                </literallayout>
+            </para>
+        </section>
+
+        <section id='git-fetcher'>
+            <title>Git Fetcher (<filename>git://</filename>)</title>
+
+            <para>
+                This fetcher submodule fetches code from the Git
+                source control system.
+                The fetcher works by creating a bare clone of the
+                remote into
+                <link linkend='var-GITDIR'><filename>GITDIR</filename></link>,
+                which is usually <filename>DL_DIR/git2</filename>.
+                This bare clone is then cloned into the work directory during the
+                unpack stage when a specific tree is checked out.
+                This is done using alternates and by reference to
+                minimize the amount of duplicate data on the disk and
+                make the unpack process fast.
+                The executable used can be set with
+                <filename>FETCHCMD_git</filename>.
+            </para>
+
+            <para>
+                This fetcher supports the following parameters:
+                <itemizedlist>
+                    <listitem><para><emphasis>"protocol":</emphasis>
+                        The protocol used to fetch the files.
+                        The default is "git" when a hostname is set.
+                        If a hostname is not set, the Git protocol is "file".
+                        You can also use "http", "https", "ssh" and "rsync".
+                        </para></listitem>
+                    <listitem><para><emphasis>"nocheckout":</emphasis>
+                        Tells the fetcher to not checkout source code when
+                        unpacking when set to "1".
+                        Set this option for the URL where there is a custom
+                        routine to checkout code.
+                        The default is "0".
+                        </para></listitem>
+                    <listitem><para><emphasis>"rebaseable":</emphasis>
+                        Indicates that the upstream Git repository can be rebased.
+                        You should set this parameter to "1" if
+                        revisions can become detached from branches.
+                        In this case, the source mirror tarball is done per
+                        revision, which has a loss of efficiency.
+                        Rebasing the upstream Git repository could cause the
+                        current revision to disappear from the upstream repository.
+                        This option reminds the fetcher to preserve the local cache
+                        carefully for future use.
+                        The default value for this parameter is "0".
+                        </para></listitem>
+                    <listitem><para><emphasis>"nobranch":</emphasis>
+                        Tells the fetcher to not check the SHA validation
+                        for the branch when set to "1".
+                        The default is "0".
+                        Set this option for the recipe that refers to
+                        the commit that is valid for a tag instead of
+                        the branch.
+                        </para></listitem>
+                    <listitem><para><emphasis>"bareclone":</emphasis>
+                        Tells the fetcher to clone a bare clone into the
+                        destination directory without checking out a working tree.
+                        Only the raw Git metadata is provided.
+                        This parameter implies the "nocheckout" parameter as well.
+                        </para></listitem>
+                    <listitem><para><emphasis>"branch":</emphasis>
+                        The branch(es) of the Git tree to clone.
+                        If unset, this is assumed to be "master".
+                        The number of branch parameters much match the number of
+                        name parameters.
+                        </para></listitem>
+                    <listitem><para><emphasis>"rev":</emphasis>
+                        The revision to use for the checkout.
+                        The default is "master".
+                        </para></listitem>
+                    <listitem><para><emphasis>"tag":</emphasis>
+                        Specifies a tag to use for the checkout.
+                        To correctly resolve tags, BitBake must access the
+                        network.
+                        For that reason, tags are often not used.
+                        As far as Git is concerned, the "tag" parameter behaves
+                        effectively the same as the "rev" parameter.
+                        </para></listitem>
+                    <listitem><para><emphasis>"subpath":</emphasis>
+                        Limits the checkout to a specific subpath of the tree.
+                        By default, the whole tree is checked out.
+                        </para></listitem>
+                    <listitem><para><emphasis>"destsuffix":</emphasis>
+                        The name of the path in which to place the checkout.
+                        By default, the path is <filename>git/</filename>.
+                        </para></listitem>
+                </itemizedlist>
+                Here are some example URLs:
+                <literallayout class='monospaced'>
+     SRC_URI = "git://git.oe.handhelds.org/git/vip.git;tag=version-1"
+     SRC_URI = "git://git.oe.handhelds.org/git/vip.git;protocol=http"
+                </literallayout>
+            </para>
+        </section>
+
+        <section id='gitsm-fetcher'>
+            <title>Git Submodule Fetcher (<filename>gitsm://</filename>)</title>
+
+            <para>
+                This fetcher submodule inherits from the
+                <link linkend='git-fetcher'>Git fetcher</link> and extends
+                that fetcher's behavior by fetching a repository's submodules.
+                <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>
+                is passed to the Git fetcher as described in the
+                "<link linkend='git-fetcher'>Git Fetcher (<filename>git://</filename>)</link>"
+                section.
+                <note>
+                    <title>Notes and Warnings</title>
+                    <para>
+                        You must clean a recipe when switching between
+                        '<filename>git://</filename>' and
+                        '<filename>gitsm://</filename>' URLs.
+                    </para>
+
+                    <para>
+                        The Git Submodules fetcher is not a complete fetcher
+                        implementation.
+                        The fetcher has known issues where it does not use the
+                        normal source mirroring infrastructure properly. Further,
+                        the submodule sources it fetches are not visible to the
+                        licensing and source archiving infrastructures.
+                    </para>
+                </note>
+            </para>
+        </section>
+
+        <section id='clearcase-fetcher'>
+            <title>ClearCase Fetcher (<filename>ccrc://</filename>)</title>
+
+            <para>
+                This fetcher submodule fetches code from a
+                <ulink url='http://en.wikipedia.org/wiki/Rational_ClearCase'>ClearCase</ulink>
+                repository.
+            </para>
+
+            <para>
+                To use this fetcher, make sure your recipe has proper
+                <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>,
+                <link linkend='var-SRCREV'><filename>SRCREV</filename></link>, and
+                <link linkend='var-PV'><filename>PV</filename></link> settings.
+                Here is an example:
+                <literallayout class='monospaced'>
+     SRC_URI = "ccrc://cc.example.org/ccrc;vob=/example_vob;module=/example_module"
+     SRCREV = "EXAMPLE_CLEARCASE_TAG"
+     PV = "${@d.getVar("SRCREV", False).replace("/", "+")}"
+                </literallayout>
+                The fetcher uses the <filename>rcleartool</filename> or
+                <filename>cleartool</filename> remote client, depending on
+                which one is available.
+            </para>
+
+            <para>
+                Following are options for the <filename>SRC_URI</filename>
+                statement:
+                <itemizedlist>
+                    <listitem><para><emphasis><filename>vob</filename></emphasis>:
+                        The name, which must include the
+                        prepending "/" character, of the ClearCase VOB.
+                        This option is required.
+                        </para></listitem>
+                    <listitem><para><emphasis><filename>module</filename></emphasis>:
+                        The module, which must include the
+                        prepending "/" character, in the selected VOB.
+                        <note>
+                            The <filename>module</filename> and <filename>vob</filename>
+                            options are combined to create the <filename>load</filename> rule in
+                            the view config spec.
+                            As an example, consider the <filename>vob</filename> and
+                            <filename>module</filename> values from the
+                            <filename>SRC_URI</filename> statement at the start of this section.
+                            Combining those values results in the following:
+                            <literallayout class='monospaced'>
+     load /example_vob/example_module
+                            </literallayout>
+                        </note>
+                        </para></listitem>
+                    <listitem><para><emphasis><filename>proto</filename></emphasis>:
+                        The protocol, which can be either <filename>http</filename> or
+                        <filename>https</filename>.
+                        </para></listitem>
+                </itemizedlist>
+            </para>
+
+            <para>
+                By default, the fetcher creates a configuration specification.
+                If you want this specification written to an area other than the default,
+                use the <filename>CCASE_CUSTOM_CONFIG_SPEC</filename> variable
+                in your recipe to define where the specification is written.
+                <note>
+                    the <filename>SRCREV</filename> loses its functionality if you
+                    specify this variable.
+                    However, <filename>SRCREV</filename> is still used to label the
+                    archive after a fetch even though it does not define what is
+                    fetched.
+                </note>
+            </para>
+
+            <para>
+                Here are a couple of other behaviors worth mentioning:
+                <itemizedlist>
+                    <listitem><para>
+                        When using <filename>cleartool</filename>, the login of
+                        <filename>cleartool</filename> is handled by the system.
+                        The login require no special steps.
+                        </para></listitem>
+                    <listitem><para>
+                        In order to use <filename>rcleartool</filename> with authenticated
+                        users, an "rcleartool login" is necessary before using the fetcher.
+                        </para></listitem>
+                </itemizedlist>
+            </para>
+        </section>
+
+        <section id='perforce-fetcher'>
+            <title>Perforce Fetcher (<filename>p4://</filename>)</title>
+
+            <para>
+                This fetcher submodule fetches code from the
+                <ulink url='https://www.perforce.com/'>Perforce</ulink>
+                source control system.
+                The executable used is specified by
+                <filename>FETCHCMD_p4</filename>, which defaults
+                to "p4".
+                The fetcher's temporary working directory is set by
+                <link linkend='var-P4DIR'><filename>P4DIR</filename></link>,
+                which defaults to "DL_DIR/p4".
+            </para>
+
+            <para>
+                To use this fetcher, make sure your recipe has proper
+                <link linkend='var-SRC_URI'><filename>SRC_URI</filename></link>,
+                <link linkend='var-SRCREV'><filename>SRCREV</filename></link>, and
+                <link linkend='var-PV'><filename>PV</filename></link> values.
+                The p4 executable is able to use the config file defined by your
+                system's <filename>P4CONFIG</filename> environment variable in
+                order to define the Perforce server URL and port, username, and
+                password if you do not wish to keep those values in a recipe
+                itself.
+                If you choose not to use <filename>P4CONFIG</filename>,
+                or to explicitly set variables that <filename>P4CONFIG</filename>
+                can contain, you can specify the <filename>P4PORT</filename> value,
+                which is the server's URL and port number, and you can
+                specify a username and password directly in your recipe within
+                <filename>SRC_URI</filename>.
+            </para>
+
+            <para>
+                Here is an example that relies on <filename>P4CONFIG</filename>
+                to specify the server URL and port, username, and password, and
+                fetches the Head Revision:
+                <literallayout class='monospaced'>
+    SRC_URI = "p4://example-depot/main/source/..."
+    SRCREV = "${AUTOREV}"
+    PV = "p4-${SRCPV}"
+    S = "${WORKDIR}/p4"
+                </literallayout>
+            </para>
+
+            <para>
+                Here is an example that specifies the server URL and port,
+                username, and password, and fetches a Revision based on a Label:
+                <literallayout class='monospaced'>
+    P4PORT = "tcp:p4server.example.net:1666"
+    SRC_URI = "p4://user:passwd@example-depot/main/source/..."
+    SRCREV = "release-1.0"
+    PV = "p4-${SRCPV}"
+    S = "${WORKDIR}/p4"
+                </literallayout>
+                <note>
+                    You should always set <filename>S</filename>
+                    to <filename>"${WORKDIR}/p4"</filename> in your recipe.
+                </note>
+            </para>
+        </section>
+
+        <section id='other-fetchers'>
+            <title>Other Fetchers</title>
+
+            <para>
+                Fetch submodules also exist for the following:
+                <itemizedlist>
+                    <listitem><para>
+                        Bazaar (<filename>bzr://</filename>)
+                        </para></listitem>
+                    <listitem><para>
+                        Trees using Git Annex (<filename>gitannex://</filename>)
+                        </para></listitem>
+                    <listitem><para>
+                        Secure FTP (<filename>sftp://</filename>)
+                        </para></listitem>
+                    <listitem><para>
+                        Secure Shell (<filename>ssh://</filename>)
+                        </para></listitem>
+                    <listitem><para>
+                        Repo (<filename>repo://</filename>)
+                        </para></listitem>
+                    <listitem><para>
+                        OSC (<filename>osc://</filename>)
+                        </para></listitem>
+                    <listitem><para>
+                        Mercurial (<filename>hg://</filename>)
+                        </para></listitem>
+                </itemizedlist>
+                No documentation currently exists for these lesser used
+                fetcher submodules.
+                However, you might find the code helpful and readable.
+            </para>
+        </section>
+    </section>
+
+    <section id='auto-revisions'>
+        <title>Auto Revisions</title>
+
+        <para>
+            We need to document <filename>AUTOREV</filename> and
+            <filename>SRCREV_FORMAT</filename> here.
+        </para>
+    </section>
+</chapter>

bitbake/doc/bitbake-user-manual/bitbake-user-manual-hello.xml

@@ -0,0 +1,495 @@
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<appendix id='hello-world-example'>
+    <title>Hello World Example</title>
+
+    <section id='bitbake-hello-world'>
+        <title>BitBake Hello World</title>
+
+        <para>
+            The simplest example commonly used to demonstrate any new
+            programming language or tool is the
+            "<ulink url="http://en.wikipedia.org/wiki/Hello_world_program">Hello World</ulink>"
+            example.
+            This appendix demonstrates, in tutorial form, Hello
+            World within the context of BitBake.
+            The tutorial describes how to create a new project
+            and the applicable metadata files necessary to allow
+            BitBake to build it.
+        </para>
+    </section>
+
+    <section id='example-obtaining-bitbake'>
+        <title>Obtaining BitBake</title>
+
+        <para>
+            See the
+            "<link linkend='obtaining-bitbake'>Obtaining BitBake</link>"
+            section for information on how to obtain BitBake.
+            Once you have the source code on your machine, the BitBake directory
+            appears as follows:
+            <literallayout class='monospaced'>
+     $ ls -al
+     total 100
+     drwxrwxr-x. 9 wmat wmat  4096 Jan 31 13:44 .
+     drwxrwxr-x. 3 wmat wmat  4096 Feb  4 10:45 ..
+     -rw-rw-r--. 1 wmat wmat   365 Nov 26 04:55 AUTHORS
+     drwxrwxr-x. 2 wmat wmat  4096 Nov 26 04:55 bin
+     drwxrwxr-x. 4 wmat wmat  4096 Jan 31 13:44 build
+     -rw-rw-r--. 1 wmat wmat 16501 Nov 26 04:55 ChangeLog
+     drwxrwxr-x. 2 wmat wmat  4096 Nov 26 04:55 classes
+     drwxrwxr-x. 2 wmat wmat  4096 Nov 26 04:55 conf
+     drwxrwxr-x. 3 wmat wmat  4096 Nov 26 04:55 contrib
+     -rw-rw-r--. 1 wmat wmat 17987 Nov 26 04:55 COPYING
+     drwxrwxr-x. 3 wmat wmat  4096 Nov 26 04:55 doc
+     -rw-rw-r--. 1 wmat wmat    69 Nov 26 04:55 .gitignore
+     -rw-rw-r--. 1 wmat wmat   849 Nov 26 04:55 HEADER
+     drwxrwxr-x. 5 wmat wmat  4096 Jan 31 13:44 lib
+     -rw-rw-r--. 1 wmat wmat   195 Nov 26 04:55 MANIFEST.in
+     -rw-rw-r--. 1 wmat wmat  2887 Nov 26 04:55 TODO
+            </literallayout>
+        </para>
+
+        <para>
+            At this point, you should have BitBake cloned to
+            a directory that matches the previous listing except for
+            dates and user names.
+        </para>
+    </section>
+
+    <section id='setting-up-the-bitbake-environment'>
+        <title>Setting Up the BitBake Environment</title>
+
+        <para>
+            First, you need to be sure that you can run BitBake.
+            Set your working directory to where your local BitBake
+            files are and run the following command:
+            <literallayout class='monospaced'>
+     $ ./bin/bitbake --version
+     BitBake Build Tool Core version 1.23.0, bitbake version 1.23.0
+            </literallayout>
+            The console output tells you what version you are running.
+        </para>
+
+        <para>
+            The recommended method to run BitBake is from a directory of your
+            choice.
+            To be able to run BitBake from any directory, you need to add the
+            executable binary to your binary to your shell's environment
+            <filename>PATH</filename> variable.
+            First, look at your current <filename>PATH</filename> variable
+            by entering the following:
+            <literallayout class='monospaced'>
+     $ echo $PATH
+            </literallayout>
+            Next, add the directory location for the BitBake binary to the
+            <filename>PATH</filename>.
+            Here is an example that adds the
+            <filename>/home/scott-lenovo/bitbake/bin</filename> directory
+            to the front of the <filename>PATH</filename> variable:
+            <literallayout class='monospaced'>
+     $ export PATH=/home/scott-lenovo/bitbake/bin:$PATH
+            </literallayout>
+            You should now be able to enter the <filename>bitbake</filename>
+            command from the command line while working from any directory.
+        </para>
+    </section>
+
+    <section id='the-hello-world-example'>
+        <title>The Hello World Example</title>
+
+        <para>
+            The overall goal of this exercise is to build a
+            complete "Hello World" example utilizing task and layer
+            concepts.
+            Because this is how modern projects such as OpenEmbedded and
+            the Yocto Project utilize BitBake, the example
+            provides an excellent starting point for understanding
+            BitBake.
+        </para>
+
+        <para>
+            To help you understand how to use BitBake to build targets,
+            the example starts with nothing but the <filename>bitbake</filename>
+            command, which causes BitBake to fail and report problems.
+            The example progresses by adding pieces to the build to
+            eventually conclude with a working, minimal "Hello World"
+            example.
+        </para>
+
+        <para>
+            While every attempt is made to explain what is happening during
+            the example, the descriptions cannot cover everything.
+            You can find further information throughout this manual.
+            Also, you can actively participate in the
+            <ulink url='http://lists.openembedded.org/mailman/listinfo/bitbake-devel'></ulink>
+            discussion mailing list about the BitBake build tool.
+        </para>
+
+        <note>
+            This example was inspired by and drew heavily from
+            <ulink url="http://www.mail-archive.com/yocto@yoctoproject.org/msg09379.html">Mailing List post - The BitBake equivalent of "Hello, World!"</ulink>.
+        </note>
+
+        <para>
+            As stated earlier, the goal of this example
+            is to eventually compile "Hello World".
+            However, it is unknown what BitBake needs and what you have
+            to provide in order to achieve that goal.
+            Recall that BitBake utilizes three types of metadata files:
+            <link linkend='configuration-files'>Configuration Files</link>,
+            <link linkend='classes'>Classes</link>, and
+            <link linkend='recipes'>Recipes</link>.
+            But where do they go?
+            How does BitBake find them?
+            BitBake's error messaging helps you answer these types of questions
+            and helps you better understand exactly what is going on.
+        </para>
+
+        <para>
+            Following is the complete "Hello World" example.
+        </para>
+
+        <orderedlist>
+            <listitem><para><emphasis>Create a Project Directory:</emphasis>
+                First, set up a directory for the "Hello World" project.
+                Here is how you can do so in your home directory:
+                <literallayout class='monospaced'>
+     $ mkdir ~/hello
+     $ cd ~/hello
+                </literallayout>
+                This is the directory that BitBake will use to do all of
+                its work.
+                You can use this directory to keep all the metafiles needed
+                by BitBake.
+                Having a project directory is a good way to isolate your
+                project.
+                </para></listitem>
+            <listitem><para><emphasis>Run Bitbake:</emphasis>
+                At this point, you have nothing but a project directory.
+                Run the <filename>bitbake</filename> command and see what
+                it does:
+                <literallayout class='monospaced'>
+     $ bitbake
+     The BBPATH variable is not set and bitbake did not
+     find a conf/bblayers.conf file in the expected location.
+     Maybe you accidentally invoked bitbake from the wrong directory?
+     DEBUG: Removed the following variables from the environment:
+     GNOME_DESKTOP_SESSION_ID, XDG_CURRENT_DESKTOP,
+     GNOME_KEYRING_CONTROL, DISPLAY, SSH_AGENT_PID, LANG, no_proxy,
+     XDG_SESSION_PATH, XAUTHORITY, SESSION_MANAGER, SHLVL,
+     MANDATORY_PATH, COMPIZ_CONFIG_PROFILE, WINDOWID, EDITOR,
+     GPG_AGENT_INFO, SSH_AUTH_SOCK, GDMSESSION, GNOME_KEYRING_PID,
+     XDG_SEAT_PATH, XDG_CONFIG_DIRS, LESSOPEN, DBUS_SESSION_BUS_ADDRESS,
+     _, XDG_SESSION_COOKIE, DESKTOP_SESSION, LESSCLOSE, DEFAULTS_PATH,
+     UBUNTU_MENUPROXY, OLDPWD, XDG_DATA_DIRS, COLORTERM, LS_COLORS
+                </literallayout>
+                The majority of this output is specific to environment variables
+                that are not directly relevant to BitBake.
+                However, the very first message regarding the
+                <filename>BBPATH</filename> variable and the
+                <filename>conf/bblayers.conf</filename> file
+                is relevant.</para>
+                <para>
+                When you run BitBake, it begins looking for metadata files.
+                The
+                <link linkend='var-BBPATH'><filename>BBPATH</filename></link>
+                variable is what tells BitBake where to look for those files.
+                <filename>BBPATH</filename> is not set and you need to set it.
+                Without <filename>BBPATH</filename>, Bitbake cannot
+                find any configuration files (<filename>.conf</filename>)
+                or recipe files (<filename>.bb</filename>) at all.
+                BitBake also cannot find the <filename>bitbake.conf</filename>
+                file.
+                </para></listitem>
+            <listitem><para><emphasis>Setting <filename>BBPATH</filename>:</emphasis>
+                For this example, you can set <filename>BBPATH</filename>
+                in the same manner that you set <filename>PATH</filename>
+                earlier in the appendix.
+                You should realize, though, that it is much more flexible to set the
+                <filename>BBPATH</filename> variable up in a configuration
+                file for each project.</para>
+                <para>From your shell, enter the following commands to set and
+                export the <filename>BBPATH</filename> variable:
+                <literallayout class='monospaced'>
+     $ BBPATH="<replaceable>projectdirectory</replaceable>"
+     $ export BBPATH
+                </literallayout>
+                Use your actual project directory in the command.
+                BitBake uses that directory to find the metadata it needs for
+                your project.
+                <note>
+                    When specifying your project directory, do not use the
+                    tilde ("~") character as BitBake does not expand that character
+                    as the shell would.
+                </note>
+                </para></listitem>
+            <listitem><para><emphasis>Run Bitbake:</emphasis>
+                Now that you have <filename>BBPATH</filename> defined, run
+                the <filename>bitbake</filename> command again:
+                <literallayout class='monospaced'>
+     $ bitbake
+     ERROR: Traceback (most recent call last):
+       File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 163, in wrapped
+         return func(fn, *args)
+       File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 173, in parse_config_file
+         return bb.parse.handle(fn, data, include)
+       File "/home/scott-lenovo/bitbake/lib/bb/parse/__init__.py", line 99, in handle
+         return h['handle'](fn, data, include)
+       File "/home/scott-lenovo/bitbake/lib/bb/parse/parse_py/ConfHandler.py", line 120, in handle
+         abs_fn = resolve_file(fn, data)
+       File "/home/scott-lenovo/bitbake/lib/bb/parse/__init__.py", line 117, in resolve_file
+         raise IOError("file %s not found in %s" % (fn, bbpath))
+     IOError: file conf/bitbake.conf not found in /home/scott-lenovo/hello
+
+     ERROR: Unable to parse conf/bitbake.conf: file conf/bitbake.conf not found in /home/scott-lenovo/hello
+                </literallayout>
+                This sample output shows that BitBake could not find the
+                <filename>conf/bitbake.conf</filename> file in the project
+                directory.
+                This file is the first thing BitBake must find in order
+                to build a target.
+                And, since the project directory for this example is
+                empty, you need to provide a <filename>conf/bitbake.conf</filename>
+                file.
+                </para></listitem>
+            <listitem><para><emphasis>Creating <filename>conf/bitbake.conf</filename>:</emphasis>
+                The <filename>conf/bitbake.conf</filename> includes a number of
+                configuration variables BitBake uses for metadata and recipe
+                files.
+                For this example, you need to create the file in your project directory
+                and define some key BitBake variables.
+                For more information on the <filename>bitbake.conf</filename>,
+                see
+                <ulink url='http://git.openembedded.org/bitbake/tree/conf/bitbake.conf'></ulink>.
+                </para>
+                <para>Use the following commands to create the <filename>conf</filename>
+                directory in the project directory:
+                <literallayout class='monospaced'>
+     $ mkdir conf
+                </literallayout>
+                From within the <filename>conf</filename> directory, use
+                some editor to create the <filename>bitbake.conf</filename>
+                so that it contains the following:
+                <literallayout class='monospaced'>
+     TMPDIR  = "${<link linkend='var-TOPDIR'>TOPDIR</link>}/tmp"
+     <link linkend='var-CACHE'>CACHE</link>   = "${TMPDIR}/cache"
+     <link linkend='var-STAMP'>STAMP</link>   = "${TMPDIR}/stamps"
+     <link linkend='var-T'>T</link>       = "${TMPDIR}/work"
+     <link linkend='var-B'>B</link>       = "${TMPDIR}"
+                </literallayout>
+                The <filename>TMPDIR</filename> variable establishes a directory
+                that BitBake uses for build output and intermediate files (other
+                than the cached information used by the
+                <link linkend='setscene'>Setscene</link> process.
+                Here, the <filename>TMPDIR</filename> directory is set to
+                <filename>hello/tmp</filename>.
+                <note><title>Tip</title>
+                    You can always safely delete the <filename>tmp</filename>
+                    directory in order to rebuild a BitBake target.
+                    The build process creates the directory for you
+                    when you run BitBake.
+                </note></para>
+                <para>For information about each of the other variables defined in this
+                example, click on the links to take you to the definitions in
+                the glossary.
+                </para></listitem>
+            <listitem><para><emphasis>Run Bitbake:</emphasis>
+                After making sure that the <filename>conf/bitbake.conf</filename>
+                file exists, you can run the <filename>bitbake</filename>
+                command again:
+                <literallayout class='monospaced'>
+$ bitbake
+ERROR: Traceback (most recent call last):
+  File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 163, in wrapped
+    return func(fn, *args)
+  File "/home/scott-lenovo/bitbake/lib/bb/cookerdata.py", line 177, in _inherit
+    bb.parse.BBHandler.inherit(bbclass, "configuration INHERITs", 0, data)
+  File "/home/scott-lenovo/bitbake/lib/bb/parse/parse_py/BBHandler.py", line 92, in inherit
+    include(fn, file, lineno, d, "inherit")
+  File "/home/scott-lenovo/bitbake/lib/bb/parse/parse_py/ConfHandler.py", line 100, in include
+    raise ParseError("Could not %(error_out)s file %(fn)s" % vars(), oldfn, lineno)
+ParseError: ParseError in configuration INHERITs: Could not inherit file classes/base.bbclass
+
+ERROR: Unable to parse base: ParseError in configuration INHERITs: Could not inherit file classes/base.bbclass
+                </literallayout>
+                In the sample output, BitBake could not find the
+                <filename>classes/base.bbclass</filename> file.
+                You need to create that file next.
+                </para></listitem>
+            <listitem><para><emphasis>Creating <filename>classes/base.bbclass</filename>:</emphasis>
+                BitBake uses class files to provide common code and functionality.
+                The minimally required class for BitBake is the
+                <filename>classes/base.bbclass</filename> file.
+                The <filename>base</filename> class is implicitly inherited by
+                every recipe.
+                BitBake looks for the class in the <filename>classes</filename>
+                directory of the project (i.e <filename>hello/classes</filename>
+                in this example).
+                </para>
+                <para>Create the <filename>classes</filename> directory as follows:
+                <literallayout class='monospaced'>
+     $ cd $HOME/hello
+     $ mkdir classes
+                </literallayout>
+                Move to the <filename>classes</filename> directory and then
+                create the <filename>base.bbclass</filename> file by inserting
+                this single line:
+                <literallayout class='monospaced'>
+     addtask build
+                </literallayout>
+                The minimal task that BitBake runs is the
+                <filename>do_build</filename> task.
+                This is all the example needs in order to build the project.
+                Of course, the <filename>base.bbclass</filename> can have much
+                more depending on which build environments BitBake is
+                supporting.
+                </para></listitem>
+            <listitem><para><emphasis>Run Bitbake:</emphasis>
+                After making sure that the <filename>classes/base.bbclass</filename>
+                file exists, you can run the <filename>bitbake</filename>
+                command again:
+                <literallayout class='monospaced'>
+     $ bitbake
+     Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.
+                </literallayout>
+                BitBake is finally reporting no errors.
+                However, you can see that it really does not have anything
+                to do.
+                You need to create a recipe that gives BitBake something to do.
+                </para></listitem>
+            <listitem><para><emphasis>Creating a Layer:</emphasis>
+                While it is not really necessary for such a small example,
+                it is good practice to create a layer in which to keep your
+                code separate from the general metadata used by BitBake.
+                Thus, this example creates and uses a layer called "mylayer".
+                <note>
+                    You can find additional information on layers at
+                    <ulink url='http://www.yoctoproject.org/docs/2.3/bitbake-user-manual/bitbake-user-manual.html#layers'></ulink>.
+                </note>
+                </para>
+                <para>Minimally, you need a recipe file and a layer configuration
+                file in your layer.
+                The configuration file needs to be in the <filename>conf</filename>
+                directory inside the layer.
+                Use these commands to set up the layer and the <filename>conf</filename>
+                directory:
+                <literallayout class='monospaced'>
+     $ cd $HOME
+     $ mkdir mylayer
+     $ cd mylayer
+     $ mkdir conf
+                </literallayout>
+                Move to the <filename>conf</filename> directory and create a
+                <filename>layer.conf</filename> file that has the following:
+                <literallayout class='monospaced'>
+     BBPATH .= ":${<link linkend='var-LAYERDIR'>LAYERDIR</link>}"
+
+     <link linkend='var-BBFILES'>BBFILES</link> += "${LAYERDIR}/*.bb"
+
+     <link linkend='var-BBFILE_COLLECTIONS'>BBFILE_COLLECTIONS</link> += "mylayer"
+     <link linkend='var-BBFILE_PATTERN'>BBFILE_PATTERN_mylayer</link> := "^${LAYERDIR_RE}/"
+                </literallayout>
+                For information on these variables, click the links
+                to go to the definitions in the glossary.</para>
+                <para>You need to create the recipe file next.
+                Inside your layer at the top-level, use an editor and create
+                a recipe file named <filename>printhello.bb</filename> that
+                has the following:
+                <literallayout class='monospaced'>
+     <link linkend='var-DESCRIPTION'>DESCRIPTION</link> = "Prints Hello World"
+     <link linkend='var-PN'>PN</link> = 'printhello'
+     <link linkend='var-PV'>PV</link> = '1'
+
+     python do_build() {
+        bb.plain("********************");
+        bb.plain("*                  *");
+        bb.plain("*  Hello, World!   *");
+        bb.plain("*                  *");
+        bb.plain("********************");
+     }
+                </literallayout>
+                The recipe file simply provides a description of the
+                recipe, the name, version, and the <filename>do_build</filename>
+                task, which prints out "Hello World" to the console.
+                For more information on these variables, follow the links
+                to the glossary.
+                </para></listitem>
+            <listitem><para><emphasis>Run Bitbake With a Target:</emphasis>
+                Now that a BitBake target exists, run the command and provide
+                that target:
+                <literallayout class='monospaced'>
+     $ cd $HOME/hello
+     $ bitbake printhello
+     ERROR: no recipe files to build, check your BBPATH and BBFILES?
+
+     Summary: There was 1 ERROR message shown, returning a non-zero exit code.
+                </literallayout>
+                We have created the layer with the recipe and the layer
+                configuration file but it still seems that BitBake cannot
+                find the recipe.
+                BitBake needs a <filename>conf/bblayers.conf</filename> that
+                lists the layers for the project.
+                Without this file, BitBake cannot find the recipe.
+                </para></listitem>
+            <listitem><para><emphasis>Creating <filename>conf/bblayers.conf</filename>:</emphasis>
+                BitBake uses the <filename>conf/bblayers.conf</filename> file
+                to locate layers needed for the project.
+                This file must reside in the <filename>conf</filename> directory
+                of the project (i.e. <filename>hello/conf</filename> for this
+                example).</para>
+                <para>Set your working directory to the <filename>hello/conf</filename>
+                directory and then create the <filename>bblayers.conf</filename>
+                file so that it contains the following:
+                <literallayout class='monospaced'>
+     BBLAYERS ?= " \
+       /home/&lt;you&gt;/mylayer \
+       "
+                </literallayout>
+                You need to provide your own information for
+                <filename>you</filename> in the file.
+                </para></listitem>
+            <listitem><para><emphasis>Run Bitbake With a Target:</emphasis>
+                Now that you have supplied the <filename>bblayers.conf</filename>
+                file, run the <filename>bitbake</filename> command and provide
+                the target:
+                <literallayout class='monospaced'>
+     $ bitbake printhello
+     Parsing recipes: 100% |##################################################################################|
+     Time: 00:00:00
+     Parsing of 1 .bb files complete (0 cached, 1 parsed). 1 targets, 0 skipped, 0 masked, 0 errors.
+     NOTE: Resolving any missing task queue dependencies
+     NOTE: Preparing RunQueue
+     NOTE: Executing RunQueue Tasks
+     ********************
+     *                  *
+     *  Hello, World!   *
+     *                  *
+     ********************
+     NOTE: Tasks Summary: Attempted 1 tasks of which 0 didn't need to be rerun and all succeeded.
+                </literallayout>
+                BitBake finds the <filename>printhello</filename> recipe and
+                successfully runs the task.
+                <note>
+                    After the first execution, re-running
+                    <filename>bitbake printhello</filename> again will not
+                    result in a BitBake run that prints the same console
+                    output.
+                    The reason for this is that the first time the
+                    <filename>printhello.bb</filename> recipe's
+                    <filename>do_build</filename> task executes
+                    successfully, BitBake writes a stamp file for the task.
+                    Thus, the next time you attempt to run the task
+                    using that same <filename>bitbake</filename> command,
+                    BitBake notices the stamp and therefore determines
+                    that the task does not need to be re-run.
+                    If you delete the <filename>tmp</filename> directory
+                    or run <filename>bitbake -c clean printhello</filename>
+                    and then re-run the build, the "Hello, World!" message will
+                    be printed again.
+                </note>
+                </para></listitem>
+        </orderedlist>
+    </section>
+</appendix>

bitbake/doc/bitbake-user-manual/bitbake-user-manual-intro.xml

@@ -0,0 +1,721 @@
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+    "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<chapter id="bitbake-user-manual-intro">
+    <title>Overview</title>
+
+    <para>
+        Welcome to the BitBake User Manual.
+        This manual provides information on the BitBake tool.
+        The information attempts to be as independent as possible regarding
+        systems that use BitBake, such as OpenEmbedded and the
+        Yocto Project.
+        In some cases, scenarios or examples within the context of
+        a build system are used in the manual to help with understanding.
+        For these cases, the manual clearly states the context.
+    </para>
+
+    <section id="intro">
+        <title>Introduction</title>
+
+        <para>
+            Fundamentally, BitBake is a generic task execution
+            engine that allows shell and Python tasks to be run
+            efficiently and in parallel while working within
+            complex inter-task dependency constraints.
+            One of BitBake's main users, OpenEmbedded, takes this core
+            and builds embedded Linux software stacks using
+            a task-oriented approach.
+        </para>
+
+        <para>
+            Conceptually, BitBake is similar to GNU Make in
+            some regards but has significant differences:
+            <itemizedlist>
+                <listitem><para>
+                    BitBake executes tasks according to provided
+                    metadata that builds up the tasks.
+                    Metadata is stored in recipe (<filename>.bb</filename>)
+                    and related recipe "append" (<filename>.bbappend</filename>)
+                    files, configuration (<filename>.conf</filename>) and
+                    underlying include (<filename>.inc</filename>) files, and
+                    in class (<filename>.bbclass</filename>) files.
+                    The metadata provides
+                    BitBake with instructions on what tasks to run and
+                    the dependencies between those tasks.
+                    </para></listitem>
+                <listitem><para>
+                    BitBake includes a fetcher library for obtaining source
+                    code from various places such as local files, source control
+                    systems, or websites.
+                    </para></listitem>
+                <listitem><para>
+                    The instructions for each unit to be built (e.g. a piece
+                    of software) are known as "recipe" files and
+                    contain all the information about the unit
+                    (dependencies, source file locations, checksums, description
+                    and so on).
+                    </para></listitem>
+                <listitem><para>
+                    BitBake includes a client/server abstraction and can
+                    be used from a command line or used as a service over
+                    XML-RPC and has several different user interfaces.
+                    </para></listitem>
+            </itemizedlist>
+        </para>
+    </section>
+
+    <section id="history-and-goals">
+        <title>History and Goals</title>
+
+        <para>
+            BitBake was originally a part of the OpenEmbedded project.
+            It was inspired by the Portage package management system
+            used by the Gentoo Linux distribution.
+            On December 7, 2004, OpenEmbedded project team member
+            Chris Larson split the project into two distinct pieces:
+            <itemizedlist>
+                <listitem><para>BitBake, a generic task executor</para></listitem>
+                <listitem><para>OpenEmbedded, a metadata set utilized by
+                    BitBake</para></listitem>
+            </itemizedlist>
+            Today, BitBake is the primary basis of the
+            <ulink url="http://www.openembedded.org/">OpenEmbedded</ulink>
+            project, which is being used to build and maintain Linux
+            distributions such as the
+            <ulink url='http://www.angstrom-distribution.org/'>Angstrom Distribution</ulink>,
+            and which is also being used as the build tool for Linux projects
+            such as the
+            <ulink url='http://www.yoctoproject.org'>Yocto Project</ulink>.
+        </para>
+
+        <para>
+            Prior to BitBake, no other build tool adequately met the needs of
+            an aspiring embedded Linux distribution.
+            All of the build systems used by traditional desktop Linux
+            distributions lacked important functionality, and none of the
+            ad hoc Buildroot-based systems, prevalent in the
+            embedded space, were scalable or maintainable.
+        </para>
+
+        <para>
+            Some important original goals for BitBake were:
+            <itemizedlist>
+                <listitem><para>
+                    Handle cross-compilation.
+                    </para></listitem>
+                <listitem><para>
+                    Handle inter-package dependencies (build time on
+                    target architecture, build time on native
+                    architecture, and runtime).
+                    </para></listitem>
+                <listitem><para>
+                    Support running any number of tasks within a given
+                    package, including, but not limited to, fetching
+                    upstream sources, unpacking them, patching them,
+                    configuring them, and so forth.
+                    </para></listitem>
+                <listitem><para>
+                    Be Linux distribution agnostic for both build and
+                    target systems.
+                    </para></listitem>
+                <listitem><para>
+                    Be architecture agnostic.
+                    </para></listitem>
+                <listitem><para>
+                    Support multiple build and target operating systems
+                    (e.g. Cygwin, the BSDs, and so forth).
+                    </para></listitem>
+                <listitem><para>
+                    Be self contained, rather than tightly
+                    integrated into the build machine's root
+                    filesystem.
+                    </para></listitem>
+                <listitem><para>
+                    Handle conditional metadata on the target architecture,
+                    operating system, distribution, and machine.
+                    </para></listitem>
+                <listitem><para>
+                    Be easy to use the tools to supply local metadata and packages
+                    against which to operate.
+                    </para></listitem>
+                <listitem><para>
+                    Be easy to use BitBake to collaborate between multiple
+                    projects for their builds.
+                    </para></listitem>
+                <listitem><para>
+                    Provide an inheritance mechanism to share
+                    common metadata between many packages.
+                    </para></listitem>
+            </itemizedlist>
+            Over time it became apparent that some further requirements
+            were necessary:
+            <itemizedlist>
+                <listitem><para>
+                    Handle variants of a base recipe (e.g. native, sdk,
+                    and multilib).
+                    </para></listitem>
+                <listitem><para>
+                    Split metadata into layers and allow layers
+                    to enhance or override other layers.
+                    </para></listitem>
+                <listitem><para>
+                    Allow representation of a given set of input variables
+                    to a task as a checksum.
+                    Based on that checksum, allow acceleration of builds
+                    with prebuilt components.
+                    </para></listitem>
+            </itemizedlist>
+            BitBake satisfies all the original requirements and many more
+            with extensions being made to the basic functionality to
+            reflect the additional requirements.
+            Flexibility and power have always been the priorities.
+            BitBake is highly extensible and supports embedded Python code and
+            execution of any arbitrary tasks.
+        </para>
+    </section>
+
+    <section id="Concepts">
+        <title>Concepts</title>
+
+        <para>
+            BitBake is a program written in the Python language.
+            At the highest level, BitBake interprets metadata, decides
+            what tasks are required to run, and executes those tasks.
+            Similar to GNU Make, BitBake controls how software is
+            built.
+            GNU Make achieves its control through "makefiles", while
+            BitBake uses "recipes".
+        </para>
+
+        <para>
+            BitBake extends the capabilities of a simple
+            tool like GNU Make by allowing for the definition of much more
+            complex tasks, such as assembling entire embedded Linux
+            distributions.
+        </para>
+
+        <para>
+            The remainder of this section introduces several concepts
+            that should be understood in order to better leverage
+            the power of BitBake.
+        </para>
+
+        <section id='recipes'>
+            <title>Recipes</title>
+
+            <para>
+                BitBake Recipes, which are denoted by the file extension
+                <filename>.bb</filename>, are the most basic metadata files.
+                These recipe files provide BitBake with the following:
+                <itemizedlist>
+                    <listitem><para>Descriptive information about the
+                        package (author, homepage, license, and so on)</para></listitem>
+                    <listitem><para>The version of the recipe</para></listitem>
+                    <listitem><para>Existing dependencies (both build
+                        and runtime dependencies)</para></listitem>
+                    <listitem><para>Where the source code resides and
+                        how to fetch it</para></listitem>
+                    <listitem><para>Whether the source code requires
+                        any patches, where to find them, and how to apply
+                        them</para></listitem>
+                    <listitem><para>How to configure and compile the
+                        source code</para></listitem>
+                    <listitem><para>Where on the target machine to install the
+                        package or packages created</para></listitem>
+                </itemizedlist>
+            </para>
+
+            <para>
+                Within the context of BitBake, or any project utilizing BitBake
+                as its build system, files with the <filename>.bb</filename>
+                extension are referred to as recipes.
+                <note>
+                    The term "package" is also commonly used to describe recipes.
+                    However, since the same word is used to describe packaged
+                    output from a project, it is best to maintain a single
+                    descriptive term - "recipes".
+                    Put another way, a single "recipe" file is quite capable
+                    of generating a number of related but separately installable
+                    "packages".
+                    In fact, that ability is fairly common.
+                </note>
+            </para>
+        </section>
+
+        <section id='configuration-files'>
+            <title>Configuration Files</title>
+
+            <para>
+                Configuration files, which are denoted by the
+                <filename>.conf</filename> extension, define
+                various configuration variables that govern the project's build
+                process.
+                These files fall into several areas that define
+                machine configuration options, distribution configuration
+                options, compiler tuning options, general common
+                configuration options, and user configuration options.
+                The main configuration file is the sample
+                <filename>bitbake.conf</filename> file, which is
+                located within the BitBake source tree
+                <filename>conf</filename> directory.
+            </para>
+        </section>
+
+        <section id='classes'>
+            <title>Classes</title>
+
+            <para>
+                Class files, which are denoted by the
+                <filename>.bbclass</filename> extension, contain
+                information that is useful to share between metadata files.
+                The BitBake source tree currently comes with one class metadata file
+                called <filename>base.bbclass</filename>.
+                You can find this file in the
+                <filename>classes</filename> directory.
+                The <filename>base.bbclass</filename> class files is special since it
+                is always included automatically for all recipes
+                and classes.
+                This class contains definitions for standard basic tasks such
+                as fetching, unpacking, configuring (empty by default),
+                compiling (runs any Makefile present), installing (empty by
+                default) and packaging (empty by default).
+                These tasks are often overridden or extended by other classes
+                added during the project development process.
+            </para>
+        </section>
+
+        <section id='layers'>
+            <title>Layers</title>
+
+            <para>
+                Layers allow you to isolate different types of
+                customizations from each other.
+                While you might find it tempting to keep everything in one layer
+                when working on a single project, the more modular you organize
+                your metadata, the easier it is to cope with future changes.
+            </para>
+
+            <para>
+                To illustrate how you can use layers to keep things modular,
+                consider customizations you might make to support a specific target machine.
+                These types of customizations typically reside in a special layer,
+                rather than a general layer, called a Board Support Package (BSP)
+                Layer.
+                Furthermore, the machine customizations should be isolated from
+                recipes and metadata that support a new GUI environment, for
+                example.
+                This situation gives you a couple of layers: one for the machine
+                configurations and one for the GUI environment.
+                It is important to understand, however, that the BSP layer can still
+                make machine-specific additions to recipes within
+                the GUI environment layer without polluting the GUI layer itself
+                with those machine-specific changes.
+                You can accomplish this through a recipe that is a BitBake append
+                (<filename>.bbappend</filename>) file.
+            </para>
+        </section>
+
+        <section id='append-bbappend-files'>
+            <title>Append Files</title>
+
+            <para>
+                Append files, which are files that have the
+                <filename>.bbappend</filename> file extension, extend or
+                override information in an existing recipe file.
+            </para>
+
+            <para>
+                BitBake expects every append file to have a corresponding recipe file.
+                Furthermore, the append file and corresponding recipe file
+                must use the same root filename.
+                The filenames can differ only in the file type suffix used
+                (e.g. <filename>formfactor_0.0.bb</filename> and
+                <filename>formfactor_0.0.bbappend</filename>).
+            </para>
+
+            <para>
+                Information in append files extends or
+                overrides the information in the underlying,
+                similarly-named recipe files.
+            </para>
+
+            <para>
+                When you name an append file, you can use the
+                wildcard character (%) to allow for matching recipe names.
+                For example, suppose you have an append file named
+                as follows:
+                <literallayout class='monospaced'>
+     busybox_1.21.%.bbappend
+                </literallayout>
+                That append file would match any <filename>busybox_1.21.x.bb</filename>
+                version of the recipe.
+                So, the append file would match the following recipe names:
+                <literallayout class='monospaced'>
+     busybox_1.21.1.bb
+     busybox_1.21.2.bb
+     busybox_1.21.3.bb
+                </literallayout>
+                If the <filename>busybox</filename> recipe was updated to
+                <filename>busybox_1.3.0.bb</filename>, the append name would not
+                match.
+                However, if you named the append file
+                <filename>busybox_1.%.bbappend</filename>, then you would have a match.
+            </para>
+
+            <para>
+                In the most general case, you could name the append file something as
+                simple as <filename>busybox_%.bbappend</filename> to be entirely
+                version independent.
+            </para>
+        </section>
+    </section>
+
+    <section id='obtaining-bitbake'>
+        <title>Obtaining BitBake</title>
+
+        <para>
+            You can obtain BitBake several different ways:
+            <itemizedlist>
+                <listitem><para><emphasis>Cloning BitBake:</emphasis>
+                    Using Git to clone the BitBake source code repository
+                    is the recommended method for obtaining BitBake.
+                    Cloning the repository makes it easy to get bug fixes
+                    and have access to stable branches and the master
+                    branch.
+                    Once you have cloned BitBake, you should use
+                    the latest stable
+                    branch for development since the master branch is for
+                    BitBake development and might contain less stable changes.
+                    </para>
+                    <para>You usually need a version of BitBake
+                    that matches the metadata you are using.
+                    The metadata is generally backwards compatible but
+                    not forward compatible.</para>
+                    <para>Here is an example that clones the BitBake repository:
+                    <literallayout class='monospaced'>
+     $ git clone git://git.openembedded.org/bitbake
+                    </literallayout>
+                    This command clones the BitBake Git repository into a
+                    directory called <filename>bitbake</filename>.
+                    Alternatively, you can
+                    designate a directory after the
+                    <filename>git clone</filename> command
+                    if you want to call the new directory something
+                    other than <filename>bitbake</filename>.
+                    Here is an example that names the directory
+                    <filename>bbdev</filename>:
+                    <literallayout class='monospaced'>
+     $ git clone git://git.openembedded.org/bitbake bbdev
+                    </literallayout></para></listitem>
+                <listitem><para><emphasis>Installation using your Distribution
+                    Package Management System:</emphasis>
+                    This method is not
+                    recommended because the BitBake version that is
+                    provided by your distribution, in most cases,
+                    is several
+                    releases behind a snapshot of the BitBake repository.
+                    </para></listitem>
+                <listitem><para><emphasis>Taking a snapshot of BitBake:</emphasis>
+                    Downloading a snapshot of BitBake from the
+                    source code repository gives you access to a known
+                    branch or release of BitBake.
+                    <note>
+                         Cloning the Git repository, as described earlier,
+                         is the preferred method for getting BitBake.
+                         Cloning the repository makes it easier to update as
+                         patches are added to the stable branches.
+                    </note></para>
+                    <para>The following example downloads a snapshot of
+                    BitBake version 1.17.0:
+                    <literallayout class='monospaced'>
+     $ wget http://git.openembedded.org/bitbake/snapshot/bitbake-1.17.0.tar.gz
+     $ tar zxpvf bitbake-1.17.0.tar.gz
+                    </literallayout>
+                    After extraction of the tarball using the tar utility,
+                    you have a directory entitled
+                    <filename>bitbake-1.17.0</filename>.
+                    </para></listitem>
+                <listitem><para><emphasis>Using the BitBake that Comes With Your
+                    Build Checkout:</emphasis>
+                    A final possibility for getting a copy of BitBake is that it
+                    already comes with your checkout of a larger Bitbake-based build
+                    system, such as Poky.
+                    Rather than manually checking out individual layers and
+                    gluing them together yourself, you can check
+                    out an entire build system.
+                    The checkout will already include a version of BitBake that
+                    has been thoroughly tested for compatibility with the other
+                    components.
+                    For information on how to check out a particular BitBake-based
+                    build system, consult that build system's supporting documentation.
+                    </para></listitem>
+            </itemizedlist>
+        </para>
+    </section>
+
+    <section id="bitbake-user-manual-command">
+        <title>The BitBake Command</title>
+
+        <para>
+            The <filename>bitbake</filename> command is the primary interface
+            to the BitBake tool.
+            This section presents the BitBake command syntax and provides
+            several execution examples.
+        </para>
+
+        <section id='usage-and-syntax'>
+            <title>Usage and syntax</title>
+
+            <para>
+                Following is the usage and syntax for BitBake:
+                <literallayout class='monospaced'>
+     $ bitbake -h
+     Usage: bitbake [options] [recipename/target recipe:do_task ...]
+
+         Executes the specified task (default is 'build') for a given set of target recipes (.bb files).
+         It is assumed there is a conf/bblayers.conf available in cwd or in BBPATH which
+         will provide the layer, BBFILES and other configuration information.
+
+     Options:
+       --version             show program's version number and exit
+       -h, --help            show this help message and exit
+       -b BUILDFILE, --buildfile=BUILDFILE
+                             Execute tasks from a specific .bb recipe directly.
+                             WARNING: Does not handle any dependencies from other
+                             recipes.
+       -k, --continue        Continue as much as possible after an error. While the
+                             target that failed and anything depending on it cannot
+                             be built, as much as possible will be built before
+                             stopping.
+       -a, --tryaltconfigs   Continue with builds by trying to use alternative
+                             providers where possible.
+       -f, --force           Force the specified targets/task to run (invalidating
+                             any existing stamp file).
+       -c CMD, --cmd=CMD     Specify the task to execute. The exact options
+                             available depend on the metadata. Some examples might
+                             be 'compile' or 'populate_sysroot' or 'listtasks' may
+                             give a list of the tasks available.
+       -C INVALIDATE_STAMP, --clear-stamp=INVALIDATE_STAMP
+                             Invalidate the stamp for the specified task such as
+                             'compile' and then run the default task for the
+                             specified target(s).
+       -r PREFILE, --read=PREFILE
+                             Read the specified file before bitbake.conf.
+       -R POSTFILE, --postread=POSTFILE
+                             Read the specified file after bitbake.conf.
+       -v, --verbose         Enable tracing of shell tasks (with 'set -x').
+                             Also print bb.note(...) messages to stdout (in
+                             addition to writing them to ${T}/log.do_&lt;task&gt;).
+       -D, --debug           Increase the debug level. You can specify this
+                             more than once. -D sets the debug level to 1,
+                             where only bb.debug(1, ...) messages are printed
+                             to stdout; -DD sets the debug level to 2, where
+                             both bb.debug(1, ...) and bb.debug(2, ...)
+                             messages are printed; etc. Without -D, no debug
+                             messages are printed. Note that -D only affects
+                             output to stdout. All debug messages are written
+                             to ${T}/log.do_taskname, regardless of the debug
+                             level.
+       -n, --dry-run         Don't execute, just go through the motions.
+       -S SIGNATURE_HANDLER, --dump-signatures=SIGNATURE_HANDLER
+                             Dump out the signature construction information, with
+                             no task execution. The SIGNATURE_HANDLER parameter is
+                             passed to the handler. Two common values are none and
+                             printdiff but the handler may define more/less. none
+                             means only dump the signature, printdiff means compare
+                             the dumped signature with the cached one.
+       -p, --parse-only      Quit after parsing the BB recipes.
+       -s, --show-versions   Show current and preferred versions of all recipes.
+       -e, --environment     Show the global or per-recipe environment complete
+                             with information about where variables were
+                             set/changed.
+       -g, --graphviz        Save dependency tree information for the specified
+                             targets in the dot syntax.
+       -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED
+                             Assume these dependencies don't exist and are already
+                             provided (equivalent to ASSUME_PROVIDED). Useful to
+                             make dependency graphs more appealing
+       -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS
+                             Show debug logging for the specified logging domains
+       -P, --profile         Profile the command and save reports.
+       -u UI, --ui=UI        The user interface to use (taskexp, knotty or
+                             ncurses - default knotty).
+       -t SERVERTYPE, --servertype=SERVERTYPE
+                             Choose which server type to use (process or xmlrpc -
+                             default process).
+       --token=XMLRPCTOKEN   Specify the connection token to be used when
+                             connecting to a remote server.
+       --revisions-changed   Set the exit code depending on whether upstream
+                             floating revisions have changed or not.
+       --server-only         Run bitbake without a UI, only starting a server
+                             (cooker) process.
+       -B BIND, --bind=BIND  The name/address for the bitbake server to bind to.
+       --no-setscene         Do not run any setscene tasks. sstate will be ignored
+                             and everything needed, built.
+       --setscene-only       Only run setscene tasks, don't run any real tasks.
+       --remote-server=REMOTE_SERVER
+                             Connect to the specified server.
+       -m, --kill-server     Terminate the remote server.
+       --observe-only        Connect to a server as an observing-only client.
+       --status-only         Check the status of the remote bitbake server.
+       -w WRITEEVENTLOG, --write-log=WRITEEVENTLOG
+                             Writes the event log of the build to a bitbake event
+                             json file. Use '' (empty string) to assign the name
+                             automatically.
+                </literallayout>
+            </para>
+        </section>
+
+        <section id='bitbake-examples'>
+            <title>Examples</title>
+
+            <para>
+                This section presents some examples showing how to use BitBake.
+            </para>
+
+            <section id='example-executing-a-task-against-a-single-recipe'>
+                <title>Executing a Task Against a Single Recipe</title>
+
+                <para>
+                    Executing tasks for a single recipe file is relatively simple.
+                    You specify the file in question, and BitBake parses
+                    it and executes the specified task.
+                    If you do not specify a task, BitBake executes the default
+                    task, which is "build”.
+                    BitBake obeys inter-task dependencies when doing
+                    so.
+                </para>
+
+                <para>
+                    The following command runs the build task, which is
+                    the default task, on the <filename>foo_1.0.bb</filename>
+                    recipe file:
+                    <literallayout class='monospaced'>
+     $ bitbake -b foo_1.0.bb
+                    </literallayout>
+                    The following command runs the clean task on the
+                    <filename>foo.bb</filename> recipe file:
+                    <literallayout class='monospaced'>
+     $ bitbake -b foo.bb -c clean
+                    </literallayout>
+                    <note>
+                        The "-b" option explicitly does not handle recipe
+                        dependencies.
+                        Other than for debugging purposes, it is instead
+                        recommended that you use the syntax presented in the
+                        next section.
+                    </note>
+                </para>
+            </section>
+
+            <section id='executing-tasks-against-a-set-of-recipe-files'>
+                <title>Executing Tasks Against a Set of Recipe Files</title>
+
+                <para>
+                    There are a number of additional complexities introduced
+                    when one wants to manage multiple <filename>.bb</filename>
+                    files.
+                    Clearly there needs to be a way to tell BitBake what
+                    files are available and, of those, which you
+                    want to execute.
+                    There also needs to be a way for each recipe
+                    to express its dependencies, both for build-time and
+                    runtime.
+                    There must be a way for you to express recipe preferences
+                    when multiple recipes provide the same functionality, or when
+                    there are multiple versions of a recipe.
+                </para>
+
+                <para>
+                    The <filename>bitbake</filename> command, when not using
+                    "--buildfile" or "-b" only accepts a "PROVIDES".
+                    You cannot provide anything else.
+                    By default, a recipe file generally "PROVIDES" its
+                    "packagename" as shown in the following example:
+                    <literallayout class='monospaced'>
+     $ bitbake foo
+                    </literallayout>
+                    This next example "PROVIDES" the package name and also uses
+                    the "-c" option to tell BitBake to just execute the
+                    <filename>do_clean</filename> task:
+                    <literallayout class='monospaced'>
+     $ bitbake -c clean foo
+                    </literallayout>
+                </para>
+            </section>
+
+            <section id='executing-a-list-of-task-and-recipe-combinations'>
+                <title>Executing a List of Task and Recipe Combinations</title>
+
+                <para>
+                    The BitBake command line supports specifying different
+                    tasks for individual targets when you specify multiple
+                    targets.
+                    For example, suppose you had two targets (or recipes)
+                    <filename>myfirstrecipe</filename> and
+                    <filename>mysecondrecipe</filename> and you needed
+                    BitBake to run <filename>taskA</filename> for the first
+                    recipe and <filename>taskB</filename> for the second
+                    recipe:
+                    <literallayout class='monospaced'>
+     $ bitbake myfirstrecipe:do_taskA mysecondrecipe:do_taskB
+                    </literallayout>
+                </para>
+            </section>
+
+            <section id='generating-dependency-graphs'>
+                <title>Generating Dependency Graphs</title>
+
+                <para>
+                    BitBake is able to generate dependency graphs using
+                    the <filename>dot</filename> syntax.
+                    You can convert these graphs into images using the
+                    <filename>dot</filename> tool from
+                    <ulink url='http://www.graphviz.org'>Graphviz</ulink>.
+                </para>
+
+                <para>
+                    When you generate a dependency graph, BitBake writes three files
+                    to the current working directory:
+                    <itemizedlist>
+                        <listitem><para>
+                            <emphasis><filename>recipe-depends.dot</filename>:</emphasis>
+                            Shows dependencies between recipes (i.e. a collapsed version of
+                            <filename>task-depends.dot</filename>).
+                            </para></listitem>
+                        <listitem><para>
+                            <emphasis><filename>task-depends.dot</filename>:</emphasis>
+                            Shows dependencies between tasks.
+                            These dependencies match BitBake's internal task execution list.
+                            </para></listitem>
+                        <listitem><para>
+                            <emphasis><filename>pn-buildlist</filename>:</emphasis>
+                            Shows a simple list of targets that are to be built.
+                            </para></listitem>
+                    </itemizedlist>
+                </para>
+
+                <para>
+                    To stop depending on common depends, use the "-I" depend
+                    option and BitBake omits them from the graph.
+                    Leaving this information out can produce more readable graphs.
+                    This way, you can remove from the graph
+                    <filename>DEPENDS</filename> from inherited classes
+                    such as <filename>base.bbclass</filename>.
+                </para>
+
+                <para>
+                    Here are two examples that create dependency graphs.
+                    The second example omits depends common in OpenEmbedded from
+                    the graph:
+                    <literallayout class='monospaced'>
+     $ bitbake -g foo
+
+     $ bitbake -g -I virtual/kernel -I eglibc foo
+                    </literallayout>
+                </para>
+            </section>
+        </section>
+    </section>
+</chapter>

bitbake/doc/bitbake-user-manual/bitbake-user-manual-style.css

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+}
+
+div.section div.section .titlepage .title,
+div.sect2 .titlepage .title {
+    background: none;
+}
+
+
+h1.title {
+  background-color: transparent;
+  background-repeat: no-repeat;
+  height: 256px;
+  text-indent: -9000px;
+  overflow:hidden;
+}
+
+h2.subtitle {
+  background-color: transparent;
+  text-indent: -9000px;
+  overflow:hidden;
+  width: 0px;
+  display: none;
+}
+
+  /*************************************** /
+ /  pippin.gimp.org specific alterations  /
+/ ***************************************/
+
+/*
+div.heading, div.navheader {
+  color: #777;
+  font-size: 80%;
+  padding: 0;
+  margin: 0;
+  text-align: left;
+  position: absolute;
+  top: 0px;
+  left: 0px;
+  width: 100%;
+  height: 50px;
+  background: url('/gfx/heading_bg.png') transparent;
+  background-repeat: repeat-x;
+  background-attachment: fixed;
+  border: none;
+}
+
+div.heading a {
+  color: #444;
+}
+
+div.footing, div.navfooter {
+  border: none;
+  color: #ddd;
+  font-size: 80%;
+  text-align:right;
+
+  width: 100%;
+  padding-top: 10px;
+  position: absolute;
+  bottom: 0px;
+  left: 0px;
+
+  background: url('/gfx/footing_bg.png') transparent;
+}
+*/
+
+
+
+  /****************** /
+ /  nasty ie tweaks  /
+/ ******************/
+
+/*
+div.heading, div.navheader {
+  width:expression(document.body.clientWidth + "px");
+}
+
+div.footing, div.navfooter {
+  width:expression(document.body.clientWidth + "px");
+  margin-left:expression("-5em");
+}
+body {
+  padding:expression("4em 5em 0em 5em");
+}
+*/
+
+  /**************************************** /
+ / mozilla vendor specific css extensions  /
+/ ****************************************/
+/*
+div.navfooter, div.footing{
+  -moz-opacity: 0.8em;
+}
+
+div.figure,
+div.table,
+div.informalfigure,
+div.informaltable,
+div.informalexample,
+div.example,
+.tip,
+.warning,
+.caution,
+.note {
+  -moz-border-radius: 0.5em;
+}
+
+b.keycap,
+.keycap {
+  -moz-border-radius: 0.3em;
+}
+*/
+
+table tr td table tr td {
+  display: none;
+}
+
+
+hr {
+  display: none;
+}
+
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+  border: 0em;
+}
+
+ .photo {
+  float: right;
+  margin-left:   1.5em;
+  margin-bottom: 1.5em;
+  margin-top: 0em;
+  max-width:      17em;
+  border:     1px solid gray;
+  padding:    3px;
+  background: white;
+}
+ .seperator {
+   padding-top: 2em;
+   clear: both;
+  }
+
+  #validators {
+      margin-top: 5em;
+      text-align: right;
+      color: #777;
+  }
+  @media print {
+      body {
+          font-size: 8pt;
+      }
+      .noprint {
+          display: none;
+      }
+  }
+
+
+.tip,
+.note {
+   background: #f0f0f2;
+   color: #333;
+   padding: 20px;
+   margin: 20px;
+}
+
+.tip h3,
+.note h3 {
+   padding: 0em;
+   margin: 0em;
+   font-size: 2em;
+   font-weight: bold;
+   color: #333;
+}
+
+.tip a,
+.note a {
+   color: #333;
+   text-decoration: underline;
+}
+
+.footnote {
+   font-size: small;
+   color: #333;
+}
+
+/* Changes the announcement text */
+.tip h3,
+.warning h3,
+.caution h3,
+.note h3 {
+   font-size:large;
+   color: #00557D;
+}

bitbake/doc/bitbake-user-manual/bitbake-user-manual.xml

@@ -0,0 +1,88 @@
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<book id='bitbake-user-manual' lang='en'
+        xmlns:xi="http://www.w3.org/2003/XInclude"
+        xmlns="http://docbook.org/ns/docbook"
+        >
+    <bookinfo>
+
+        <mediaobject>
+            <imageobject>
+                <imagedata fileref='figures/bitbake-title.png'
+                    format='SVG'
+                    align='left' scalefit='1' width='100%'/>
+            </imageobject>
+        </mediaobject>
+
+        <title>
+            BitBake User Manual
+        </title>
+
+        <authorgroup>
+            <author>
+                <firstname>Richard Purdie, Chris Larson, and </firstname> <surname>Phil Blundell</surname>
+                <affiliation>
+                    <orgname>BitBake Community</orgname>
+                </affiliation>
+                <email>bitbake-devel@lists.openembedded.org</email>
+            </author>
+        </authorgroup>
+
+<!--
+# Add in some revision history if we want it here.
+        <revhistory>
+            <revision>
+                <revnumber>x.x</revnumber>
+                <date>dd month year</date>
+                <revremark>Some relevent comment</revremark>
+            </revision>
+            <revision>
+                <revnumber>x.x</revnumber>
+                <date>dd month year</date>
+                <revremark>Some relevent comment</revremark>
+            </revision>
+            <revision>
+                <revnumber>x.x</revnumber>
+                <date>dd month year</date>
+                <revremark>Some relevent comment</revremark>
+            </revision>
+            <revision>
+                <revnumber>x.x</revnumber>
+                <date>dd month year</date>
+                <revremark>Some relevent comment</revremark>
+            </revision>
+       </revhistory>
+-->
+
+        <copyright>
+            <year>2004-2016</year>
+            <holder>Richard Purdie</holder>
+            <holder>Chris Larson</holder>
+            <holder>and Phil Blundell</holder>
+        </copyright>
+
+        <legalnotice>
+            <para>
+                This work is licensed under the Creative Commons Attribution License.
+                To view a copy of this license, visit
+                <ulink url="http://creativecommons.org/licenses/by/2.5/">http://creativecommons.org/licenses/by/2.5/</ulink>
+                or send a letter to Creative Commons, 444 Castro Street,
+                Suite 900, Mountain View, California 94041, USA.
+            </para>
+        </legalnotice>
+    </bookinfo>
+
+    <xi:include href="bitbake-user-manual-intro.xml"/>
+
+    <xi:include href="bitbake-user-manual-execution.xml"/>
+
+    <xi:include href="bitbake-user-manual-metadata.xml"/>
+
+    <xi:include href="bitbake-user-manual-fetching.xml"/>
+
+    <xi:include href="bitbake-user-manual-ref-variables.xml"/>
+
+    <xi:include href="bitbake-user-manual-hello.xml"/>
+
+</book>

bitbake/doc/bitbake-user-manual/html.css

@@ -0,0 +1,281 @@
+/* Feuille de style DocBook du projet Traduc.org                */
+/* DocBook CSS stylesheet of the Traduc.org project             */
+
+/* (c) Jean-Philippe Gu<47>rard - 14 ao<61>t 2004                     */
+/* (c) Jean-Philippe Gu<47>rard - 14 August 2004                   */
+
+/* Cette feuille de style est libre, vous pouvez la             */
+/* redistribuer et la modifier selon les termes de la Licence   */
+/* Art Libre. Vous trouverez un exemplaire de cette Licence sur */
+/* http://tigreraye.org/Petit-guide-du-traducteur.html#licence-art-libre */
+
+/* This work of art is free, you can redistribute it and/or     */
+/* modify it according to terms of the Free Art license. You    */
+/* will find a specimen of this license on the Copyleft         */
+/* Attitude web site: http://artlibre.org as well as on other   */
+/* sites.                                                       */
+/* Please note that the French version of this licence as shown */
+/* on http://tigreraye.org/Petit-guide-du-traducteur.html#licence-art-libre */
+/* is only official licence of this document. The English       */
+/* is only provided to help you understand this licence.        */
+
+/* La derni<6E>re version de cette feuille de style est toujours   */
+/* disponible sur<75>: http://tigreraye.org/style.css              */
+/* Elle est <20>galement disponible sur<75>:                          */
+/* http://www.traduc.org/docs/HOWTO/lecture/style.css           */
+
+/* The latest version of this stylesheet is available from:     */
+/* http://tigreraye.org/style.css                               */
+/* It is also available on:                                     */
+/* http://www.traduc.org/docs/HOWTO/lecture/style.css           */
+
+/* N'h<>sitez pas <20> envoyer vos commentaires et corrections <20>    */
+/* Jean-Philippe Gu<47>rard <jean-philippe.guerard@tigreraye.org>  */
+
+/* Please send feedback and bug reports to                      */
+/* Jean-Philippe Gu<47>rard <jean-philippe.guerard@tigreraye.org>  */
+
+/* $Id: style.css,v 1.14 2004/09/10 20:12:09 fevrier Exp fevrier $ */
+
+/* Pr<50>sentation g<>n<EFBFBD>rale du document */
+/* Overall document presentation */
+
+body {
+    /*
+    font-family: Apolline, "URW Palladio L", Garamond, jGaramond,
+                 "Bitstream Cyberbit", "Palatino Linotype", serif;
+     */
+    margin: 7%;
+    background-color: white;
+}
+
+/* Taille du texte */
+/* Text size */
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+
+/* Gestion des textes mis en relief imbriqu<71>s */
+/* Embedded emphasis */
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+em em { font-style: normal; }
+em em em { font-style: italic; }
+
+/* Titres */
+/* Titles */
+
+h1 { font-size: 200%; font-weight: 900; }
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+h6 {                  font-weight: bold; }
+
+/* Nom de famille en petites majuscules (uniquement en fran<61>ais) */
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+
+/* Blocs de citation */
+/* Quotation blocs */
+
+div[class~="blockquote"] {
+  border: solid 2px #AAA;
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+  margin: 5px;
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+
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+
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+/* Literal blocs: light gray background */
+
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+  padding: 5px;
+  margin: 5px;
+}
+
+/* Programmes et captures texte<74>: fond bleu clair */
+/* Listing and text screen snapshots: light blue background */
+
+*[class~="programlisting"], *[class~="screen"] {
+  background: #f0f0ff;
+  padding: 5px;
+  margin: 5px;
+}
+
+/* Les textes <20> remplacer sont surlign<67>s en vert p<>le */
+/* Replaceable text in highlighted in pale green */
+
+*[class~="replaceable"] { 
+    background-color: #98fb98;
+    font-style: normal; }
+
+/* Tables<65>: fonds gris clair & bords simples */
+/* Tables: light gray background and solid borders */
+
+*[class~="table"] *[class~="title"] { width:100%; border: 0px; }
+
+table {
+    border: 1px solid #aaa;
+    border-collapse: collapse;
+    padding: 2px;
+    margin: 5px;
+}
+
+/* Listes simples en style table */
+/* Simples lists in table presentation */
+
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+    background-color: #F0F0F0;
+    margin: 5px;
+    border: solid 1px #AAA;
+}
+
+table[class~="simplelist"] td {
+    border: solid 1px #AAA;
+}
+
+/* Les tables */
+/* Tables */
+
+*[class~="table"] table {
+    background-color: #F0F0F0;
+    border: solid 1px #AAA;
+}
+*[class~="informaltable"] table { background-color: #F0F0F0; }
+
+th,td {
+    vertical-align: baseline;
+    text-align: left;
+    padding: 0.1em 0.3em;
+    empty-cells: show; 
+}
+
+/* Alignement des colonnes */
+/* Colunms alignment */
+
+td[align=center] ,  th[align=center]  { text-align: center; }
+td[align=right] ,   th[align=right]   { text-align: right; }
+td[align=left] ,    th[align=left]    { text-align: left; }
+td[align=justify] , th[align=justify] { text-align: justify; }
+
+/* Pas de marge autour des images */
+/* No inside margins for images */
+
+img { border: 0; }
+
+/* Les liens ne sont pas soulign<67>s */
+/* No underlines for links */
+
+:link , :visited , :active { text-decoration: none; }
+
+/* Prudence<63>: cadre jaune et fond jaune clair */
+/* Caution: yellow border and light yellow background */
+
+*[class~="caution"] {
+    border: solid 2px yellow;
+    background-color: #ffffe0;
+    padding: 1em 6px 1em ;
+    margin: 5px;
+}
+
+*[class~="caution"] th {
+    vertical-align: middle
+}
+
+*[class~="caution"] table {
+    background-color: #ffffe0;
+    border: none;
+}
+
+/* Note importante<74>: cadre jaune et fond jaune clair */
+/* Important: yellow border and light yellow background */
+
+*[class~="important"] {
+    border: solid 2px yellow;
+    background-color: #ffffe0;
+    padding: 1em 6px 1em;
+    margin: 5px;
+}
+
+*[class~="important"] th {
+    vertical-align: middle
+}
+
+*[class~="important"] table  {
+    background-color: #ffffe0;
+    border: none;
+}
+
+/* Mise en <20>vidence<63>: texte l<>g<EFBFBD>rement plus grand */
+/* Highlights: slightly larger texts */
+
+*[class~="highlights"] {
+    font-size:  110%;
+}
+
+/* Note<74>: cadre bleu et fond bleu clair */
+/* Notes: blue border and light blue background */
+
+*[class~="note"]   {
+    border: solid 2px #7099C5;
+    background-color: #f0f0ff;
+    padding: 1em 6px 1em ;
+    margin: 5px;
+}
+
+*[class~="note"] th {
+    vertical-align: middle
+}
+
+*[class~="note"] table {
+    background-color: #f0f0ff;
+    border: none;
+}
+
+/* Astuce<63>: cadre vert et fond vert clair */
+/* Tip: green border and light green background */
+
+*[class~="tip"] {
+    border: solid 2px #00ff00;
+    background-color: #f0ffff;
+    padding: 1em 6px 1em ;
+    margin: 5px;
+}
+
+*[class~="tip"] th {
+    vertical-align: middle;
+}
+
+*[class~="tip"] table {
+    background-color: #f0ffff;
+    border: none;
+}
+
+/* Avertissement<6E>: cadre rouge et fond rouge clair */
+/* Warning: red border and light red background */
+
+*[class~="warning"] {
+    border: solid 2px #ff0000;
+    background-color: #fff0f0; 
+    padding: 1em 6px 1em ;
+    margin: 5px;
+}
+
+*[class~="warning"] th {
+    vertical-align: middle;
+}
+                    
+
+*[class~="warning"] table {
+    background-color: #fff0f0;
+    border: none;
+}
+
+/* Fin */
+/* The End */
+

bitbake/doc/bitbake.1

@@ -0,0 +1,142 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.\" First parameter, NAME, should be all caps
+.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
+.\" other parameters are allowed: see man(7), man(1)
+.TH BITBAKE 1 "November 19, 2006"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+BitBake \- simple tool for the execution of tasks
+.SH SYNOPSIS
+.B bitbake
+.RI [ options ] " packagenames"
+.br
+.SH DESCRIPTION
+This manual page documents briefly the
+.B bitbake
+command.
+.PP
+.\" TeX users may be more comfortable with the \fB<whatever>\fP and
+.\" \fI<whatever>\fP escape sequences to invode bold face and italics, 
+.\" respectively.
+\fBbitbake\fP is a program that executes the specified task (default is 'build')
+for a given set of BitBake files.
+.br
+It expects that BBFILES is defined, which is a space separated list of files to
+be executed. BBFILES does support wildcards.
+.br
+Default BBFILES are the .bb files in the current directory.
+.SH OPTIONS
+This program follow the usual GNU command line syntax, with long
+options starting with two dashes (`-').
+.TP
+.B \-h, \-\-help
+Show summary of options.
+.TP
+.B \-\-version
+Show version of program.
+.TP
+.B \-bBUILDFILE, \-\-buildfile=BUILDFILE
+execute the task against this .bb file, rather than a package from BBFILES.
+.TP
+.B \-k, \-\-continue
+continue as much as possible after an error. While the target that failed, and
+those that depend on it, cannot be remade, the other dependencies of these
+targets can be processed all the same.
+.TP
+.B \-a, \-\-tryaltconfigs
+continue with builds by trying to use alternative providers where possible.
+.TP
+.B \-f, \-\-force
+force run of specified cmd, regardless of stamp status
+.TP
+.B \-i, \-\-interactive
+drop into the interactive mode also called the BitBake shell.
+.TP
+.B \-cCMD, \-\-cmd=CMD
+Specify task to execute. Note that this only executes the specified task for
+the providee and the packages it depends on, i.e. 'compile' does not implicitly
+call stage for the dependencies (IOW: use only if you know what you are doing).
+Depending on the base.bbclass a listtasks task is defined and will show
+available tasks.
+.TP
+.B \-rFILE, \-\-read=FILE 
+read the specified file before bitbake.conf
+.TP
+.B \-v, \-\-verbose
+output more chit-chat to the terminal
+.TP
+.B \-D, \-\-debug
+Increase the debug level. You can specify this more than once.
+.TP
+.B \-n, \-\-dry-run
+don't execute, just go through the motions
+.TP
+.B \-p, \-\-parse-only
+quit after parsing the BB files (developers only)
+.TP
+.B \-s, \-\-show-versions
+show current and preferred versions of all packages
+.TP
+.B \-e, \-\-environment
+show the global or per-recipe environment (this is what used to be bbread)
+.TP
+.B \-g, \-\-graphviz
+emit the dependency trees of the specified packages in the dot syntax
+.TP
+.B \-IIGNORED\_DOT\_DEPS, \-\-ignore-deps=IGNORED_DOT_DEPS
+Stop processing at the given list of dependencies when generating dependency
+graphs. This can help to make the graph more appealing
+.TP
+.B \-lDEBUG_DOMAINS, \-\-log-domains=DEBUG_DOMAINS
+Show debug logging for the specified logging domains
+.TP
+.B \-P, \-\-profile
+profile the command and print a report
+.TP
+.B \-uUI, \-\-ui=UI
+User interface to use. Currently, knotty, taskexp or ncurses can be specified as UI.
+.TP
+.B \-tSERVERTYPE, \-\-servertype=SERVERTYPE
+Choose which server to use, none, process or xmlrpc.
+.TP
+.B \-\-revisions-changed
+Set the exit code depending on whether upstream floating revisions have changed or not.
+.TP
+.B \-\-server-only
+Run bitbake without UI,  the frontend can connect with bitbake server itself.
+.TP
+.B \-BBIND, \-\-bind=BIND
+The name/address for the bitbake server to bind to.
+.TP
+.B \-\-no\-setscene
+Do not run any setscene tasks, forces builds.
+
+.SH ENVIRONMENT VARIABLES
+bitbake uses the following environment variables to control its
+operation:
+.TP
+.B BITBAKE_UI
+The bitbake user interface; overridden by the \fB-u\fP commandline option.
+
+.SH AUTHORS
+BitBake was written by 
+Phil Blundell,
+Holger Freyther,
+Chris Larson,
+Mickey Lauer,
+Richard Purdie,
+Holger Schurig
+.PP
+This manual page was written by Marcin Juszkiewicz <marcin@hrw.one.pl>
+for the Debian project (but may be used by others).

bitbake/doc/poky.ent

@@ -0,0 +1,59 @@
+<!ENTITY DISTRO "1.4">
+<!ENTITY DISTRO_NAME "tbd">
+<!ENTITY YOCTO_DOC_VERSION "1.4">
+<!ENTITY POKYVERSION "8.0">
+<!ENTITY YOCTO_POKY "poky-&DISTRO_NAME;-&POKYVERSION;">
+<!ENTITY COPYRIGHT_YEAR "2010-2013">
+<!ENTITY YOCTO_DL_URL "http://downloads.yoctoproject.org">
+<!ENTITY YOCTO_HOME_URL "http://www.yoctoproject.org">
+<!ENTITY YOCTO_LISTS_URL "http://lists.yoctoproject.org">
+<!ENTITY YOCTO_BUGZILLA_URL "http://bugzilla.yoctoproject.org">
+<!ENTITY YOCTO_WIKI_URL "https://wiki.yoctoproject.org">
+<!ENTITY YOCTO_AB_URL "http://autobuilder.yoctoproject.org">
+<!ENTITY YOCTO_GIT_URL "http://git.yoctoproject.org">
+<!ENTITY YOCTO_ADTREPO_URL "http://adtrepo.yoctoproject.org">
+<!ENTITY OE_HOME_URL "http://www.openembedded.org">
+<!ENTITY OE_LISTS_URL "http://lists.linuxtogo.org/cgi-bin/mailman">
+<!ENTITY OE_DOCS_URL "http://docs.openembedded.org">
+<!ENTITY OH_HOME_URL "http://o-hand.com">
+<!ENTITY BITBAKE_HOME_URL "http://developer.berlios.de/projects/bitbake/">
+<!ENTITY ECLIPSE_MAIN_URL "http://www.eclipse.org/downloads">
+<!ENTITY ECLIPSE_DL_URL "http://download.eclipse.org">
+<!ENTITY ECLIPSE_DL_PLUGIN_URL "&YOCTO_DL_URL;/releases/eclipse-plugin/&DISTRO;">
+<!ENTITY ECLIPSE_UPDATES_URL "&ECLIPSE_DL_URL;/tm/updates/3.3">
+<!ENTITY ECLIPSE_INDIGO_URL "&ECLIPSE_DL_URL;/releases/indigo">
+<!ENTITY ECLIPSE_JUNO_URL "&ECLIPSE_DL_URL;/releases/juno">
+<!ENTITY ECLIPSE_INDIGO_CDT_URL "&ECLIPSE_DL_URL;tools/cdt/releases/indigo">
+<!ENTITY YOCTO_DOCS_URL "&YOCTO_HOME_URL;/docs">
+<!ENTITY YOCTO_SOURCES_URL "&YOCTO_HOME_URL;/sources/">
+<!ENTITY YOCTO_AB_PORT_URL "&YOCTO_AB_URL;:8010">
+<!ENTITY YOCTO_AB_NIGHTLY_URL "&YOCTO_AB_URL;/nightly/">
+<!ENTITY YOCTO_POKY_URL "&YOCTO_DL_URL;/releases/poky/">
+<!ENTITY YOCTO_RELEASE_DL_URL "&YOCTO_DL_URL;/releases/yocto/yocto-&DISTRO;">
+<!ENTITY YOCTO_TOOLCHAIN_DL_URL "&YOCTO_RELEASE_DL_URL;/toolchain/">
+<!ENTITY YOCTO_ECLIPSE_DL_URL "&YOCTO_RELEASE_DL_URL;/eclipse-plugin/indigo;">
+<!ENTITY YOCTO_ADTINSTALLER_DL_URL "&YOCTO_RELEASE_DL_URL;/adt_installer">
+<!ENTITY YOCTO_POKY_DL_URL "&YOCTO_RELEASE_DL_URL;/&YOCTO_POKY;.tar.bz2">
+<!ENTITY YOCTO_MACHINES_DL_URL "&YOCTO_RELEASE_DL_URL;/machines">
+<!ENTITY YOCTO_QEMU_DL_URL "&YOCTO_MACHINES_DL_URL;/qemu">
+<!ENTITY YOCTO_PYTHON-i686_DL_URL "&YOCTO_DL_URL;/releases/miscsupport/python-nativesdk-standalone-i686.tar.bz2">
+<!ENTITY YOCTO_PYTHON-x86_64_DL_URL "&YOCTO_DL_URL;/releases/miscsupport/python-nativesdk-standalone-x86_64.tar.bz2">
+<!ENTITY YOCTO_DOCS_QS_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/yocto-project-qs/yocto-project-qs.html">
+<!ENTITY YOCTO_DOCS_ADT_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/adt-manual/adt-manual.html">
+<!ENTITY YOCTO_DOCS_REF_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/ref-manual/ref-manual.html">
+<!ENTITY YOCTO_DOCS_BSP_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/bsp-guide/bsp-guide.html">
+<!ENTITY YOCTO_DOCS_DEV_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/dev-manual/dev-manual.html">
+<!ENTITY YOCTO_DOCS_KERNEL_URL "&YOCTO_DOCS_URL;/&YOCTO_DOC_VERSION;/kernel-manual/kernel-manual.html">
+<!ENTITY YOCTO_ADTPATH_DIR "/opt/poky/&DISTRO;">
+<!ENTITY YOCTO_POKY_TARBALL "&YOCTO_POKY;.tar.bz2">
+<!ENTITY OE_INIT_PATH "&YOCTO_POKY;/oe-init-build-env">
+<!ENTITY OE_INIT_FILE "oe-init-build-env">
+<!ENTITY UBUNTU_HOST_PACKAGES_ESSENTIAL "gawk wget git-core diffstat unzip texinfo \
+     build-essential chrpath">
+<!ENTITY FEDORA_HOST_PACKAGES_ESSENTIAL "gawk make wget tar bzip2 gzip python unzip perl patch \
+     diffutils diffstat git cpp gcc gcc-c++ eglibc-devel texinfo chrpath \
+     ccache">
+<!ENTITY OPENSUSE_HOST_PACKAGES_ESSENTIAL "python gcc gcc-c++ git chrpath make wget python-xml \
+     diffstat texinfo python-curses">
+<!ENTITY CENTOS_HOST_PACKAGES_ESSENTIAL "gawk make wget tar bzip2 gzip python unzip perl patch \
+     diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath">

bitbake/doc/template/component.title.xsl

@@ -0,0 +1,39 @@
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns="http://www.w3.org/1999/xhtml"
+  exclude-result-prefixes="d">
+  
+  <xsl:template name="component.title">
+    <xsl:param name="node" select="."/>
+    
+    <xsl:variable name="level">
+      <xsl:choose>
+        <xsl:when test="ancestor::d:section">
+          <xsl:value-of select="count(ancestor::d:section)+1"/>
+        </xsl:when>
+        <xsl:when test="ancestor::d:sect5">6</xsl:when>
+        <xsl:when test="ancestor::d:sect4">5</xsl:when>
+        <xsl:when test="ancestor::d:sect3">4</xsl:when>
+        <xsl:when test="ancestor::d:sect2">3</xsl:when>
+        <xsl:when test="ancestor::d:sect1">2</xsl:when>
+        <xsl:otherwise>1</xsl:otherwise>
+      </xsl:choose>
+    </xsl:variable>
+    <xsl:element name="h{$level+1}" namespace="http://www.w3.org/1999/xhtml">
+      <xsl:attribute name="class">title</xsl:attribute>
+      <xsl:if test="$generate.id.attributes = 0">
+        <xsl:call-template name="anchor">
+          <xsl:with-param name="node" select="$node"/>
+          <xsl:with-param name="conditional" select="0"/>
+        </xsl:call-template>
+      </xsl:if>
+      <xsl:apply-templates select="$node" mode="object.title.markup">
+        <xsl:with-param name="allow-anchors" select="1"/>
+      </xsl:apply-templates>
+      <xsl:call-template name="permalink">
+        <xsl:with-param name="node" select="$node"/>
+      </xsl:call-template>
+    </xsl:element>
+  </xsl:template>
+</xsl:stylesheet>

bitbake/doc/template/db-pdf.xsl

@@ -0,0 +1,64 @@
+<?xml version='1.0'?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
+  
+  <xsl:import href="http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl" />
+
+  <!-- check project-plan.sh for how this is generated, needed to tweak 
+       the cover page     
+    -->
+  <xsl:include href="/tmp/titlepage.xsl"/> 
+
+  <!-- To force a page break in document, i.e per section add a 
+      <?hard-pagebreak?> tag.
+  -->
+ <xsl:template match="processing-instruction('hard-pagebreak')">
+   <fo:block break-before='page' />
+ </xsl:template>
+
+  <!--Fix for defualt indent getting TOC all wierd..
+      See http://sources.redhat.com/ml/docbook-apps/2005-q1/msg00455.html 
+      FIXME: must be a better fix
+    -->
+  <xsl:param name="body.start.indent" select="'0'"/>
+  <!--<xsl:param name="title.margin.left" select="'0'"/>-->
+
+  <!-- stop long-ish header titles getting wrapped -->
+  <xsl:param name="header.column.widths">1 10 1</xsl:param>
+
+  <!-- customise headers and footers a little --> 
+
+  <xsl:template name="head.sep.rule">
+   <xsl:if test="$header.rule != 0">
+     <xsl:attribute name="border-bottom-width">0.5pt</xsl:attribute>
+     <xsl:attribute name="border-bottom-style">solid</xsl:attribute>
+     <xsl:attribute name="border-bottom-color">#cccccc</xsl:attribute>
+   </xsl:if>
+  </xsl:template>
+
+  <xsl:template name="foot.sep.rule">
+    <xsl:if test="$footer.rule != 0">
+     <xsl:attribute name="border-top-width">0.5pt</xsl:attribute>
+     <xsl:attribute name="border-top-style">solid</xsl:attribute>
+     <xsl:attribute name="border-top-color">#cccccc</xsl:attribute>
+    </xsl:if>
+  </xsl:template>
+
+  <xsl:attribute-set name="header.content.properties">
+    <xsl:attribute name="color">#cccccc</xsl:attribute>
+  </xsl:attribute-set>
+
+  <xsl:attribute-set name="footer.content.properties">
+    <xsl:attribute name="color">#cccccc</xsl:attribute>
+  </xsl:attribute-set>
+
+ 
+  <!-- general settings -->
+
+  <xsl:param name="fop1.extensions" select="1"></xsl:param>
+  <xsl:param name="paper.type" select="'A4'"></xsl:param>
+  <xsl:param name="section.autolabel" select="1"></xsl:param>
+  <xsl:param name="body.font.family" select="'verasans'"></xsl:param>
+  <xsl:param name="title.font.family" select="'verasans'"></xsl:param>
+  <xsl:param name="monospace.font.family" select="'veramono'"></xsl:param>
+
+</xsl:stylesheet>

bitbake/doc/template/division.title.xsl

@@ -0,0 +1,25 @@
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns="http://www.w3.org/1999/xhtml"
+  exclude-result-prefixes="d">
+  
+  <xsl:template name="division.title">
+    <xsl:param name="node" select="."/>
+    
+    <h1>
+      <xsl:attribute name="class">title</xsl:attribute>
+      <xsl:call-template name="anchor">
+        <xsl:with-param name="node" select="$node"/>
+        <xsl:with-param name="conditional" select="0"/>
+      </xsl:call-template>
+      <xsl:apply-templates select="$node" mode="object.title.markup">
+        <xsl:with-param name="allow-anchors" select="1"/>
+      </xsl:apply-templates>
+      <xsl:call-template name="permalink">
+        <xsl:with-param name="node" select="$node"/>
+      </xsl:call-template>
+    </h1>
+  </xsl:template>
+</xsl:stylesheet>
+

bitbake/doc/template/fop-config.xml

@@ -0,0 +1,58 @@
+<fop version="1.0">
+
+  <!-- Strict user configuration -->
+  <strict-configuration>true</strict-configuration>
+
+  <!-- Strict FO validation -->
+  <strict-validation>true</strict-validation>
+
+   <!--
+    Set the baseDir so common/openedhand.svg references in plans still
+    work ok. Note, relative file references to current dir should still work.
+    -->	
+  <base>../template</base>
+  <font-base>../template</font-base>
+ 
+  <!-- Source resolution in dpi (dots/pixels per inch) for determining the
+       size of pixels in SVG and bitmap images, default: 72dpi -->
+  <!-- <source-resolution>72</source-resolution> -->
+  <!-- Target resolution in dpi (dots/pixels per inch) for specifying the
+       target resolution for generated bitmaps, default: 72dpi -->
+  <!-- <target-resolution>72</target-resolution> -->
+ 
+  <!-- default page-height and page-width, in case
+       value is specified as auto -->
+  <default-page-settings height="11in" width="8.26in"/> 
+ 
+  <!-- <use-cache>false</use-cache> -->
+ 
+  <renderers>
+    <renderer mime="application/pdf">
+      <fonts>
+        <font  metrics-file="VeraMono.xml"
+               kerning="yes" 
+               embed-url="VeraMono.ttf">
+          <font-triplet name="veramono" style="normal" weight="normal"/>
+        </font>
+
+        <font  metrics-file="VeraMoBd.xml"
+               kerning="yes" 
+               embed-url="VeraMoBd.ttf">
+          <font-triplet name="veramono" style="normal" weight="bold"/>
+        </font>
+
+        <font  metrics-file="Vera.xml"
+               kerning="yes" 
+               embed-url="Vera.ttf">
+          <font-triplet name="verasans" style="normal" weight="normal"/>
+          <font-triplet name="verasans" style="normal" weight="bold"/>
+          <font-triplet name="verasans" style="italic" weight="normal"/>
+          <font-triplet name="verasans" style="italic" weight="bold"/>
+        </font>
+        
+        <auto-detect/>
+      </fonts>
+    </renderer>
+  </renderers>
+</fop>
+

bitbake/doc/template/formal.object.heading.xsl

@@ -0,0 +1,21 @@
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns="http://www.w3.org/1999/xhtml"
+  exclude-result-prefixes="d">
+  
+  <xsl:template name="formal.object.heading">
+    <xsl:param name="object" select="."/>
+    <xsl:param name="title">
+      <xsl:apply-templates select="$object" mode="object.title.markup">
+        <xsl:with-param name="allow-anchors" select="1"/>
+      </xsl:apply-templates>
+    </xsl:param>
+    <p class="title">
+      <b><xsl:copy-of select="$title"/></b>
+      <xsl:call-template name="permalink">
+        <xsl:with-param name="node" select="$object"/>
+      </xsl:call-template>
+    </p>
+  </xsl:template>
+</xsl:stylesheet>

bitbake/doc/template/gloss-permalinks.xsl

@@ -0,0 +1,14 @@
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns="http://www.w3.org/1999/xhtml">
+
+  <xsl:template match="glossentry/glossterm">
+    <xsl:apply-imports/>
+    <xsl:if test="$generate.permalink != 0">
+      <xsl:call-template name="permalink">
+        <xsl:with-param name="node" select=".."/>
+      </xsl:call-template>
+    </xsl:if>
+  </xsl:template>
+</xsl:stylesheet>

bitbake/doc/template/permalinks.xsl

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet version="1.0"
+  xmlns="http://www.w3.org/1999/xhtml"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+
+  <xsl:param name="generate.permalink" select="1"/>
+  <xsl:param name="permalink.text">¶</xsl:param>
+
+  <xsl:template name="permalink">
+    <xsl:param name="node"/>
+
+    <xsl:if test="$generate.permalink != '0'">
+      <span class="permalink">
+        <a alt="Permalink" title="Permalink">
+          <xsl:attribute name="href">
+            <xsl:call-template name="href.target">
+              <xsl:with-param name="object"  select="$node"/>
+            </xsl:call-template>
+          </xsl:attribute>
+          <xsl:copy-of select="$permalink.text"/>
+        </a>
+      </span>
+    </xsl:if>
+  </xsl:template>
+</xsl:stylesheet>

bitbake/doc/template/section.title.xsl

@@ -0,0 +1,55 @@
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:d="http://docbook.org/ns/docbook"
+  xmlns="http://www.w3.org/1999/xhtml" exclude-result-prefixes="d">
+
+  <xsl:template name="section.title">
+    <xsl:variable name="section"
+      select="(ancestor::section |
+               ancestor::simplesect|
+               ancestor::sect1|
+               ancestor::sect2|
+               ancestor::sect3|
+               ancestor::sect4|
+               ancestor::sect5)[last()]"/>
+
+    <xsl:variable name="renderas">
+      <xsl:choose>
+        <xsl:when test="$section/@renderas = 'sect1'">1</xsl:when>
+        <xsl:when test="$section/@renderas = 'sect2'">2</xsl:when>
+        <xsl:when test="$section/@renderas = 'sect3'">3</xsl:when>
+        <xsl:when test="$section/@renderas = 'sect4'">4</xsl:when>
+        <xsl:when test="$section/@renderas = 'sect5'">5</xsl:when>
+        <xsl:otherwise><xsl:value-of select="''"/></xsl:otherwise>
+      </xsl:choose>
+    </xsl:variable>
+
+    <xsl:variable name="level">
+      <xsl:choose>
+        <xsl:when test="$renderas != ''">
+          <xsl:value-of select="$renderas"/>
+        </xsl:when>
+        <xsl:otherwise>
+          <xsl:call-template name="section.level">
+            <xsl:with-param name="node" select="$section"/>
+          </xsl:call-template>
+        </xsl:otherwise>
+      </xsl:choose>
+    </xsl:variable>
+
+    <xsl:call-template name="section.heading">
+      <xsl:with-param name="section" select="$section"/>
+      <xsl:with-param name="level" select="$level"/>
+      <xsl:with-param name="title">
+        <xsl:apply-templates select="$section" mode="object.title.markup">
+          <xsl:with-param name="allow-anchors" select="1"/>
+        </xsl:apply-templates>
+        <xsl:if test="$level &gt; 0">
+          <xsl:call-template name="permalink">
+            <xsl:with-param name="node" select="$section"/>
+          </xsl:call-template>
+        </xsl:if>
+      </xsl:with-param>
+    </xsl:call-template>
+  </xsl:template>
+</xsl:stylesheet>

bitbake/doc/tools/docbook-to-pdf

@@ -0,0 +1,51 @@
+#!/bin/sh
+	
+if [ -z "$1" -o -z "$2" ]; then
+   echo "usage: [-v] $0 <docbook file> <templatedir>"
+   echo
+   echo "*NOTE* you need xsltproc, fop and nwalsh docbook stylesheets" 
+   echo "       installed for this to work!"
+   echo
+   exit 0
+fi
+
+FO=`echo $1 | sed s/.xml/.fo/` || exit 1
+PDF=`echo $1 | sed s/.xml/.pdf/` || exit 1
+TEMPLATEDIR=$2
+
+##
+# These URI should be rewritten by your distribution's xml catalog to
+# match your localy installed XSL stylesheets.
+XSL_BASE_URI="http://docbook.sourceforge.net/release/xsl/current"
+
+# Creates a temporary XSL stylesheet based on titlepage.xsl
+xsltproc -o /tmp/titlepage.xsl                                           \
+	 --xinclude                                                      \
+         $XSL_BASE_URI/template/titlepage.xsl \
+         $TEMPLATEDIR/titlepage.templates.xml || exit 1
+
+# Creates the file needed for FOP
+xsltproc --xinclude                    \
+	 --stringparam hyphenate false \
+	 --stringparam formal.title.placement "figure after" \
+	 --stringparam ulink.show 1 \
+         --stringparam  body.font.master  9 \
+         --stringparam  title.font.master  11 \
+         --stringparam draft.watermark.image "$TEMPLATEDIR/draft.png" \
+         --stringparam  chapter.autolabel 1 \
+         --stringparam  appendix.autolabel A \
+         --stringparam  section.autolabel 1 \
+         --stringparam  section.label.includes.component.label 1 \
+         --output $FO               \
+         $TEMPLATEDIR/db-pdf.xsl    \
+	 $1                 || exit 1
+
+# Invokes the Java version of FOP.  Uses the additional configuration file common/fop-config.xml
+fop -c $TEMPLATEDIR/fop-config.xml -fo $FO -pdf $PDF       || exit 1
+
+rm -f $FO
+rm -f  /tmp/titlepage.xsl
+
+echo
+echo " #### Success! $PDF ready. ####"
+echo

bitbake/lib/bb/COW.py

@@ -0,0 +1,319 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# This is a copy on write dictionary and set which abuses classes to try and be nice and fast.
+#
+# Copyright (C) 2006 Tim Ansell
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+#Please Note:
+# Be careful when using mutable types (ie Dict and Lists) - operations involving these are SLOW.
+# Assign a file to __warn__ to get warnings about slow operations.
+#
+
+
+import copy
+import types
+ImmutableTypes = (
+    bool,
+    complex,
+    float,
+    int,
+    tuple,
+    frozenset,
+    str
+)
+
+MUTABLE = "__mutable__"
+
+class COWMeta(type):
+    pass
+
+class COWDictMeta(COWMeta):
+    __warn__ = False
+    __hasmutable__ = False
+    __marker__ = tuple()
+
+    def __str__(cls):
+        # FIXME: I have magic numbers!
+        return "<COWDict Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3)
+    __repr__ = __str__
+
+    def cow(cls):
+        class C(cls):
+            __count__ = cls.__count__ + 1
+        return C
+    copy = cow
+    __call__ = cow
+
+    def __setitem__(cls, key, value):
+        if value is not None and not isinstance(value, ImmutableTypes):
+            if not isinstance(value, COWMeta):
+                cls.__hasmutable__ = True
+            key += MUTABLE
+        setattr(cls, key, value)
+
+    def __getmutable__(cls, key, readonly=False):
+        nkey = key + MUTABLE
+        try:
+            return cls.__dict__[nkey]
+        except KeyError:
+            pass
+
+        value = getattr(cls, nkey)
+        if readonly:
+            return value
+
+        if not cls.__warn__ is False and not isinstance(value, COWMeta):
+            print("Warning: Doing a copy because %s is a mutable type." % key, file=cls.__warn__)
+        try:
+            value = value.copy()
+        except AttributeError as e:
+            value = copy.copy(value)
+        setattr(cls, nkey, value)
+        return value
+
+    __getmarker__ = []
+    def __getreadonly__(cls, key, default=__getmarker__):
+        """\
+        Get a value (even if mutable) which you promise not to change.
+        """
+        return cls.__getitem__(key, default, True)
+
+    def __getitem__(cls, key, default=__getmarker__, readonly=False):
+        try:
+            try:
+                value = getattr(cls, key)
+            except AttributeError:
+                value = cls.__getmutable__(key, readonly)
+
+            # This is for values which have been deleted
+            if value is cls.__marker__:
+                raise AttributeError("key %s does not exist." % key)
+
+            return value
+        except AttributeError as e:
+            if not default is cls.__getmarker__:
+                return default
+
+            raise KeyError(str(e))
+
+    def __delitem__(cls, key):
+        cls.__setitem__(key, cls.__marker__)
+
+    def __revertitem__(cls, key):
+        if key not in cls.__dict__:
+            key += MUTABLE
+        delattr(cls, key)
+
+    def __contains__(cls, key):
+        return cls.has_key(key)
+
+    def has_key(cls, key):
+        value = cls.__getreadonly__(key, cls.__marker__)
+        if value is cls.__marker__:
+            return False
+        return True
+
+    def iter(cls, type, readonly=False):
+        for key in dir(cls):
+            if key.startswith("__"):
+                continue
+
+            if key.endswith(MUTABLE):
+                key = key[:-len(MUTABLE)]
+
+            if type == "keys":
+                yield key
+
+            try:
+                if readonly:
+                    value = cls.__getreadonly__(key)
+                else:
+                    value = cls[key]
+            except KeyError:
+                continue
+
+            if type == "values":
+                yield value
+            if type == "items":
+                yield (key, value)
+        raise StopIteration()
+
+    def iterkeys(cls):
+        return cls.iter("keys")
+    def itervalues(cls, readonly=False):
+        if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False:
+            print("Warning: If you arn't going to change any of the values call with True.", file=cls.__warn__)
+        return cls.iter("values", readonly)
+    def iteritems(cls, readonly=False):
+        if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False:
+            print("Warning: If you arn't going to change any of the values call with True.", file=cls.__warn__)
+        return cls.iter("items", readonly)
+
+class COWSetMeta(COWDictMeta):
+    def __str__(cls):
+        # FIXME: I have magic numbers!
+        return "<COWSet Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) -3)
+    __repr__ = __str__
+
+    def cow(cls):
+        class C(cls):
+            __count__ = cls.__count__ + 1
+        return C
+
+    def add(cls, value):
+        COWDictMeta.__setitem__(cls, repr(hash(value)), value)
+
+    def remove(cls, value):
+        COWDictMeta.__delitem__(cls, repr(hash(value)))
+
+    def __in__(cls, value):
+        return repr(hash(value)) in COWDictMeta
+
+    def iterkeys(cls):
+        raise TypeError("sets don't have keys")
+
+    def iteritems(cls):
+        raise TypeError("sets don't have 'items'")
+
+# These are the actual classes you use!
+class COWDictBase(object, metaclass = COWDictMeta):
+    __count__ = 0
+
+class COWSetBase(object, metaclass = COWSetMeta):
+    __count__ = 0
+
+if __name__ == "__main__":
+    import sys
+    COWDictBase.__warn__ = sys.stderr
+    a = COWDictBase()
+    print("a", a)
+
+    a['a'] = 'a'
+    a['b'] = 'b'
+    a['dict'] = {}
+
+    b = a.copy()
+    print("b", b)
+    b['c'] = 'b'
+
+    print()
+
+    print("a", a)
+    for x in a.iteritems():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b.iteritems():
+        print(x)
+    print()
+
+    b['dict']['a'] = 'b'
+    b['a'] = 'c'
+
+    print("a", a)
+    for x in a.iteritems():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b.iteritems():
+        print(x)
+    print()
+
+    try:
+        b['dict2']
+    except KeyError as e:
+        print("Okay!")
+
+    a['set'] = COWSetBase()
+    a['set'].add("o1")
+    a['set'].add("o1")
+    a['set'].add("o2")
+
+    print("a", a)
+    for x in a['set'].itervalues():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b['set'].itervalues():
+        print(x)
+    print()
+
+    b['set'].add('o3')
+
+    print("a", a)
+    for x in a['set'].itervalues():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b['set'].itervalues():
+        print(x)
+    print()
+
+    a['set2'] = set()
+    a['set2'].add("o1")
+    a['set2'].add("o1")
+    a['set2'].add("o2")
+
+    print("a", a)
+    for x in a.iteritems():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b.iteritems(readonly=True):
+        print(x)
+    print()
+
+    del b['b']
+    try:
+        print(b['b'])
+    except KeyError:
+        print("Yay! deleted key raises error")
+
+    if 'b' in b:
+        print("Boo!")
+    else:
+        print("Yay - has_key with delete works!")
+
+    print("a", a)
+    for x in a.iteritems():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b.iteritems(readonly=True):
+        print(x)
+    print()
+
+    b.__revertitem__('b')
+
+    print("a", a)
+    for x in a.iteritems():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b.iteritems(readonly=True):
+        print(x)
+    print()
+
+    b.__revertitem__('dict')
+    print("a", a)
+    for x in a.iteritems():
+        print(x)
+    print("--")
+    print("b", b)
+    for x in b.iteritems(readonly=True):
+        print(x)
+    print()

bitbake/lib/bb/__init__.py

@@ -0,0 +1,144 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# BitBake Build System Python Library
+#
+# Copyright (C) 2003  Holger Schurig
+# Copyright (C) 2003, 2004  Chris Larson
+#
+# Based on Gentoo's portage.py.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+__version__ = "1.36.0"
+
+import sys
+if sys.version_info < (3, 4, 0):
+    raise RuntimeError("Sorry, python 3.4.0 or later is required for this version of bitbake")
+
+
+class BBHandledException(Exception):
+    """
+    The big dilemma for generic bitbake code is what information to give the user
+    when an exception occurs. Any exception inheriting this base exception class
+    has already provided information to the user via some 'fired' message type such as
+    an explicitly fired event using bb.fire, or a bb.error message. If bitbake 
+    encounters an exception derived from this class, no backtrace or other information 
+    will be given to the user, its assumed the earlier event provided the relevant information.
+    """
+    pass
+
+import os
+import logging
+
+
+class NullHandler(logging.Handler):
+    def emit(self, record):
+        pass
+
+Logger = logging.getLoggerClass()
+class BBLogger(Logger):
+    def __init__(self, name):
+        if name.split(".")[0] == "BitBake":
+            self.debug = self.bbdebug
+        Logger.__init__(self, name)
+
+    def bbdebug(self, level, msg, *args, **kwargs):
+        return self.log(logging.DEBUG - level + 1, msg, *args, **kwargs)
+
+    def plain(self, msg, *args, **kwargs):
+        return self.log(logging.INFO + 1, msg, *args, **kwargs)
+
+    def verbose(self, msg, *args, **kwargs):
+        return self.log(logging.INFO - 1, msg, *args, **kwargs)
+
+logging.raiseExceptions = False
+logging.setLoggerClass(BBLogger)
+
+logger = logging.getLogger("BitBake")
+logger.addHandler(NullHandler())
+logger.setLevel(logging.DEBUG - 2)
+
+mainlogger = logging.getLogger("BitBake.Main")
+
+# This has to be imported after the setLoggerClass, as the import of bb.msg
+# can result in construction of the various loggers.
+import bb.msg
+
+from bb import fetch2 as fetch
+sys.modules['bb.fetch'] = sys.modules['bb.fetch2']
+
+# Messaging convenience functions
+def plain(*args):
+    mainlogger.plain(''.join(args))
+
+def debug(lvl, *args):
+    if isinstance(lvl, str):
+        mainlogger.warning("Passed invalid debug level '%s' to bb.debug", lvl)
+        args = (lvl,) + args
+        lvl = 1
+    mainlogger.debug(lvl, ''.join(args))
+
+def note(*args):
+    mainlogger.info(''.join(args))
+
+def warn(*args):
+    mainlogger.warning(''.join(args))
+
+def error(*args, **kwargs):
+    mainlogger.error(''.join(args), extra=kwargs)
+
+def fatal(*args, **kwargs):
+    mainlogger.critical(''.join(args), extra=kwargs)
+    raise BBHandledException()
+
+def deprecated(func, name=None, advice=""):
+    """This is a decorator which can be used to mark functions
+    as deprecated. It will result in a warning being emitted
+    when the function is used."""
+    import warnings
+
+    if advice:
+        advice = ": %s" % advice
+    if name is None:
+        name = func.__name__
+
+    def newFunc(*args, **kwargs):
+        warnings.warn("Call to deprecated function %s%s." % (name,
+                                                             advice),
+                      category=DeprecationWarning,
+                      stacklevel=2)
+        return func(*args, **kwargs)
+    newFunc.__name__ = func.__name__
+    newFunc.__doc__ = func.__doc__
+    newFunc.__dict__.update(func.__dict__)
+    return newFunc
+
+# For compatibility
+def deprecate_import(current, modulename, fromlist, renames = None):
+    """Import objects from one module into another, wrapping them with a DeprecationWarning"""
+    import sys
+
+    module = __import__(modulename, fromlist = fromlist)
+    for position, objname in enumerate(fromlist):
+        obj = getattr(module, objname)
+        newobj = deprecated(obj, "{0}.{1}".format(current, objname),
+                            "Please use {0}.{1} instead".format(modulename, objname))
+        if renames:
+            newname = renames[position]
+        else:
+            newname = objname
+
+        setattr(sys.modules[current], newname, newobj)
+

bitbake/lib/bb/build.py

@@ -0,0 +1,907 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# BitBake 'Build' implementation
+#
+# Core code for function execution and task handling in the
+# BitBake build tools.
+#
+# Copyright (C) 2003, 2004  Chris Larson
+#
+# Based on Gentoo's portage.py.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import sys
+import logging
+import shlex
+import glob
+import time
+import stat
+import bb
+import bb.msg
+import bb.process
+import bb.progress
+from bb import data, event, utils
+
+bblogger = logging.getLogger('BitBake')
+logger = logging.getLogger('BitBake.Build')
+
+NULL = open(os.devnull, 'r+')
+
+__mtime_cache = {}
+
+def cached_mtime_noerror(f):
+    if f not in __mtime_cache:
+        try:
+            __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
+        except OSError:
+            return 0
+    return __mtime_cache[f]
+
+def reset_cache():
+    global __mtime_cache
+    __mtime_cache = {}
+
+# When we execute a Python function, we'd like certain things
+# in all namespaces, hence we add them to __builtins__.
+# If we do not do this and use the exec globals, they will
+# not be available to subfunctions.
+if hasattr(__builtins__, '__setitem__'):
+    builtins = __builtins__
+else:
+    builtins = __builtins__.__dict__
+
+builtins['bb'] = bb
+builtins['os'] = os
+
+class FuncFailed(Exception):
+    def __init__(self, name = None, logfile = None):
+        self.logfile = logfile
+        self.name = name
+        if name:
+            self.msg = 'Function failed: %s' % name
+        else:
+            self.msg = "Function failed"
+
+    def __str__(self):
+        if self.logfile and os.path.exists(self.logfile):
+            msg = ("%s (log file is located at %s)" %
+                   (self.msg, self.logfile))
+        else:
+            msg = self.msg
+        return msg
+
+class TaskBase(event.Event):
+    """Base class for task events"""
+
+    def __init__(self, t, logfile, d):
+        self._task = t
+        self._package = d.getVar("PF")
+        self._mc = d.getVar("BB_CURRENT_MC")
+        self.taskfile = d.getVar("FILE")
+        self.taskname = self._task
+        self.logfile = logfile
+        self.time = time.time()
+        event.Event.__init__(self)
+        self._message = "recipe %s: task %s: %s" % (d.getVar("PF"), t, self.getDisplayName())
+
+    def getTask(self):
+        return self._task
+
+    def setTask(self, task):
+        self._task = task
+
+    def getDisplayName(self):
+        return bb.event.getName(self)[4:]
+
+    task = property(getTask, setTask, None, "task property")
+
+class TaskStarted(TaskBase):
+    """Task execution started"""
+    def __init__(self, t, logfile, taskflags, d):
+        super(TaskStarted, self).__init__(t, logfile, d)
+        self.taskflags = taskflags
+
+class TaskSucceeded(TaskBase):
+    """Task execution completed"""
+
+class TaskFailed(TaskBase):
+    """Task execution failed"""
+
+    def __init__(self, task, logfile, metadata, errprinted = False):
+        self.errprinted = errprinted
+        super(TaskFailed, self).__init__(task, logfile, metadata)
+
+class TaskFailedSilent(TaskBase):
+    """Task execution failed (silently)"""
+    def getDisplayName(self):
+        # Don't need to tell the user it was silent
+        return "Failed"
+
+class TaskInvalid(TaskBase):
+
+    def __init__(self, task, metadata):
+        super(TaskInvalid, self).__init__(task, None, metadata)
+        self._message = "No such task '%s'" % task
+
+class TaskProgress(event.Event):
+    """
+    Task made some progress that could be reported to the user, usually in
+    the form of a progress bar or similar.
+    NOTE: this class does not inherit from TaskBase since it doesn't need
+    to - it's fired within the task context itself, so we don't have any of
+    the context information that you do in the case of the other events.
+    The event PID can be used to determine which task it came from.
+    The progress value is normally 0-100, but can also be negative
+    indicating that progress has been made but we aren't able to determine
+    how much.
+    The rate is optional, this is simply an extra string to display to the
+    user if specified.
+    """
+    def __init__(self, progress, rate=None):
+        self.progress = progress
+        self.rate = rate
+        event.Event.__init__(self)
+
+
+class LogTee(object):
+    def __init__(self, logger, outfile):
+        self.outfile = outfile
+        self.logger = logger
+        self.name = self.outfile.name
+
+    def write(self, string):
+        self.logger.plain(string)
+        self.outfile.write(string)
+
+    def __enter__(self):
+        self.outfile.__enter__()
+        return self
+
+    def __exit__(self, *excinfo):
+        self.outfile.__exit__(*excinfo)
+
+    def __repr__(self):
+        return '<LogTee {0}>'.format(self.name)
+    def flush(self):
+        self.outfile.flush()
+
+#
+# pythonexception allows the python exceptions generated to be raised
+# as the real exceptions (not FuncFailed) and without a backtrace at the 
+# origin of the failure.
+#
+def exec_func(func, d, dirs = None, pythonexception=False):
+    """Execute a BB 'function'"""
+
+    try:
+        oldcwd = os.getcwd()
+    except:
+        oldcwd = None
+
+    flags = d.getVarFlags(func)
+    cleandirs = flags.get('cleandirs') if flags else None
+    if cleandirs:
+        for cdir in d.expand(cleandirs).split():
+            bb.utils.remove(cdir, True)
+            bb.utils.mkdirhier(cdir)
+
+    if flags and dirs is None:
+        dirs = flags.get('dirs')
+        if dirs:
+            dirs = d.expand(dirs).split()
+
+    if dirs:
+        for adir in dirs:
+            bb.utils.mkdirhier(adir)
+        adir = dirs[-1]
+    else:
+        adir = None
+
+    body = d.getVar(func, False)
+    if not body:
+        if body is None:
+            logger.warning("Function %s doesn't exist", func)
+        return
+
+    ispython = flags.get('python')
+
+    lockflag = flags.get('lockfiles')
+    if lockflag:
+        lockfiles = [f for f in d.expand(lockflag).split()]
+    else:
+        lockfiles = None
+
+    tempdir = d.getVar('T')
+
+    # or func allows items to be executed outside of the normal
+    # task set, such as buildhistory
+    task = d.getVar('BB_RUNTASK') or func
+    if task == func:
+        taskfunc = task
+    else:
+        taskfunc = "%s.%s" % (task, func)
+
+    runfmt = d.getVar('BB_RUNFMT') or "run.{func}.{pid}"
+    runfn = runfmt.format(taskfunc=taskfunc, task=task, func=func, pid=os.getpid())
+    runfile = os.path.join(tempdir, runfn)
+    bb.utils.mkdirhier(os.path.dirname(runfile))
+
+    # Setup the courtesy link to the runfn, only for tasks
+    # we create the link 'just' before the run script is created
+    # if we create it after, and if the run script fails, then the
+    # link won't be created as an exception would be fired.
+    if task == func:
+        runlink = os.path.join(tempdir, 'run.{0}'.format(task))
+        if runlink:
+            bb.utils.remove(runlink)
+
+            try:
+                os.symlink(runfn, runlink)
+            except OSError:
+                pass
+
+    with bb.utils.fileslocked(lockfiles):
+        if ispython:
+            exec_func_python(func, d, runfile, cwd=adir, pythonexception=pythonexception)
+        else:
+            exec_func_shell(func, d, runfile, cwd=adir)
+
+    try:
+        curcwd = os.getcwd()
+    except:
+        curcwd = None
+
+    if oldcwd and curcwd != oldcwd:
+        try:
+            bb.warn("Task %s changed cwd to %s" % (func, curcwd))
+            os.chdir(oldcwd)
+        except:
+            pass
+
+_functionfmt = """
+{function}(d)
+"""
+logformatter = bb.msg.BBLogFormatter("%(levelname)s: %(message)s")
+def exec_func_python(func, d, runfile, cwd=None, pythonexception=False):
+    """Execute a python BB 'function'"""
+
+    code = _functionfmt.format(function=func)
+    bb.utils.mkdirhier(os.path.dirname(runfile))
+    with open(runfile, 'w') as script:
+        bb.data.emit_func_python(func, script, d)
+
+    if cwd:
+        try:
+            olddir = os.getcwd()
+        except OSError as e:
+            bb.warn("%s: Cannot get cwd: %s" % (func, e))
+            olddir = None
+        os.chdir(cwd)
+
+    bb.debug(2, "Executing python function %s" % func)
+
+    try:
+        text = "def %s(d):\n%s" % (func, d.getVar(func, False))
+        fn = d.getVarFlag(func, "filename", False)
+        lineno = int(d.getVarFlag(func, "lineno", False))
+        bb.methodpool.insert_method(func, text, fn, lineno - 1)
+
+        comp = utils.better_compile(code, func, "exec_python_func() autogenerated")
+        utils.better_exec(comp, {"d": d}, code, "exec_python_func() autogenerated", pythonexception=pythonexception)
+    except (bb.parse.SkipRecipe, bb.build.FuncFailed):
+        raise
+    except:
+        if pythonexception:
+            raise
+        raise FuncFailed(func, None)
+    finally:
+        bb.debug(2, "Python function %s finished" % func)
+
+        if cwd and olddir:
+            try:
+                os.chdir(olddir)
+            except OSError as e:
+                bb.warn("%s: Cannot restore cwd %s: %s" % (func, olddir, e))
+
+def shell_trap_code():
+    return '''#!/bin/sh\n
+# Emit a useful diagnostic if something fails:
+bb_exit_handler() {
+    ret=$?
+    case $ret in
+    0)  ;;
+    *)  case $BASH_VERSION in
+        "") echo "WARNING: exit code $ret from a shell command.";;
+        *)  echo "WARNING: ${BASH_SOURCE[0]}:${BASH_LINENO[0]} exit $ret from '$BASH_COMMAND'";;
+        esac
+        exit $ret
+    esac
+}
+trap 'bb_exit_handler' 0
+set -e
+'''
+
+def exec_func_shell(func, d, runfile, cwd=None):
+    """Execute a shell function from the metadata
+
+    Note on directory behavior.  The 'dirs' varflag should contain a list
+    of the directories you need created prior to execution.  The last
+    item in the list is where we will chdir/cd to.
+    """
+
+    # Don't let the emitted shell script override PWD
+    d.delVarFlag('PWD', 'export')
+
+    with open(runfile, 'w') as script:
+        script.write(shell_trap_code())
+
+        bb.data.emit_func(func, script, d)
+
+        if bb.msg.loggerVerboseLogs:
+            script.write("set -x\n")
+        if cwd:
+            script.write("cd '%s'\n" % cwd)
+        script.write("%s\n" % func)
+        script.write('''
+# cleanup
+ret=$?
+trap '' 0
+exit $ret
+''')
+
+    os.chmod(runfile, 0o775)
+
+    cmd = runfile
+    if d.getVarFlag(func, 'fakeroot', False):
+        fakerootcmd = d.getVar('FAKEROOT')
+        if fakerootcmd:
+            cmd = [fakerootcmd, runfile]
+
+    if bb.msg.loggerDefaultVerbose:
+        logfile = LogTee(logger, sys.stdout)
+    else:
+        logfile = sys.stdout
+
+    progress = d.getVarFlag(func, 'progress')
+    if progress:
+        if progress == 'percent':
+            # Use default regex
+            logfile = bb.progress.BasicProgressHandler(d, outfile=logfile)
+        elif progress.startswith('percent:'):
+            # Use specified regex
+            logfile = bb.progress.BasicProgressHandler(d, regex=progress.split(':', 1)[1], outfile=logfile)
+        elif progress.startswith('outof:'):
+            # Use specified regex
+            logfile = bb.progress.OutOfProgressHandler(d, regex=progress.split(':', 1)[1], outfile=logfile)
+        else:
+            bb.warn('%s: invalid task progress varflag value "%s", ignoring' % (func, progress))
+
+    fifobuffer = bytearray()
+    def readfifo(data):
+        nonlocal fifobuffer
+        fifobuffer.extend(data)
+        while fifobuffer:
+            message, token, nextmsg = fifobuffer.partition(b"\00")
+            if token:
+                splitval = message.split(b' ', 1)
+                cmd = splitval[0].decode("utf-8")
+                if len(splitval) > 1:
+                    value = splitval[1].decode("utf-8")
+                else:
+                    value = ''
+                if cmd == 'bbplain':
+                    bb.plain(value)
+                elif cmd == 'bbnote':
+                    bb.note(value)
+                elif cmd == 'bbwarn':
+                    bb.warn(value)
+                elif cmd == 'bberror':
+                    bb.error(value)
+                elif cmd == 'bbfatal':
+                    # The caller will call exit themselves, so bb.error() is
+                    # what we want here rather than bb.fatal()
+                    bb.error(value)
+                elif cmd == 'bbfatal_log':
+                    bb.error(value, forcelog=True)
+                elif cmd == 'bbdebug':
+                    splitval = value.split(' ', 1)
+                    level = int(splitval[0])
+                    value = splitval[1]
+                    bb.debug(level, value)
+                else:
+                    bb.warn("Unrecognised command '%s' on FIFO" % cmd)
+                fifobuffer = nextmsg
+            else:
+                break
+
+    tempdir = d.getVar('T')
+    fifopath = os.path.join(tempdir, 'fifo.%s' % os.getpid())
+    if os.path.exists(fifopath):
+        os.unlink(fifopath)
+    os.mkfifo(fifopath)
+    with open(fifopath, 'r+b', buffering=0) as fifo:
+        try:
+            bb.debug(2, "Executing shell function %s" % func)
+
+            try:
+                with open(os.devnull, 'r+') as stdin:
+                    bb.process.run(cmd, shell=False, stdin=stdin, log=logfile, extrafiles=[(fifo,readfifo)])
+            except bb.process.CmdError:
+                logfn = d.getVar('BB_LOGFILE')
+                raise FuncFailed(func, logfn)
+        finally:
+            os.unlink(fifopath)
+
+    bb.debug(2, "Shell function %s finished" % func)
+
+def _task_data(fn, task, d):
+    localdata = bb.data.createCopy(d)
+    localdata.setVar('BB_FILENAME', fn)
+    localdata.setVar('BB_CURRENTTASK', task[3:])
+    localdata.setVar('OVERRIDES', 'task-%s:%s' %
+                     (task[3:].replace('_', '-'), d.getVar('OVERRIDES', False)))
+    localdata.finalize()
+    bb.data.expandKeys(localdata)
+    return localdata
+
+def _exec_task(fn, task, d, quieterr):
+    """Execute a BB 'task'
+
+    Execution of a task involves a bit more setup than executing a function,
+    running it with its own local metadata, and with some useful variables set.
+    """
+    if not d.getVarFlag(task, 'task', False):
+        event.fire(TaskInvalid(task, d), d)
+        logger.error("No such task: %s" % task)
+        return 1
+
+    logger.debug(1, "Executing task %s", task)
+
+    localdata = _task_data(fn, task, d)
+    tempdir = localdata.getVar('T')
+    if not tempdir:
+        bb.fatal("T variable not set, unable to build")
+
+    # Change nice level if we're asked to
+    nice = localdata.getVar("BB_TASK_NICE_LEVEL")
+    if nice:
+        curnice = os.nice(0)
+        nice = int(nice) - curnice
+        newnice = os.nice(nice)
+        logger.debug(1, "Renice to %s " % newnice)
+    ionice = localdata.getVar("BB_TASK_IONICE_LEVEL")
+    if ionice:
+        try:
+            cls, prio = ionice.split(".", 1)
+            bb.utils.ioprio_set(os.getpid(), int(cls), int(prio))
+        except:
+            bb.warn("Invalid ionice level %s" % ionice)
+
+    bb.utils.mkdirhier(tempdir)
+
+    # Determine the logfile to generate
+    logfmt = localdata.getVar('BB_LOGFMT') or 'log.{task}.{pid}'
+    logbase = logfmt.format(task=task, pid=os.getpid())
+
+    # Document the order of the tasks...
+    logorder = os.path.join(tempdir, 'log.task_order')
+    try:
+        with open(logorder, 'a') as logorderfile:
+            logorderfile.write('{0} ({1}): {2}\n'.format(task, os.getpid(), logbase))
+    except OSError:
+        logger.exception("Opening log file '%s'", logorder)
+        pass
+
+    # Setup the courtesy link to the logfn
+    loglink = os.path.join(tempdir, 'log.{0}'.format(task))
+    logfn = os.path.join(tempdir, logbase)
+    if loglink:
+        bb.utils.remove(loglink)
+
+        try:
+           os.symlink(logbase, loglink)
+        except OSError:
+           pass
+
+    prefuncs = localdata.getVarFlag(task, 'prefuncs', expand=True)
+    postfuncs = localdata.getVarFlag(task, 'postfuncs', expand=True)
+
+    class ErrorCheckHandler(logging.Handler):
+        def __init__(self):
+            self.triggered = False
+            logging.Handler.__init__(self, logging.ERROR)
+        def emit(self, record):
+            if getattr(record, 'forcelog', False):
+                self.triggered = False
+            else:
+                self.triggered = True
+
+    # Handle logfiles
+    si = open('/dev/null', 'r')
+    try:
+        bb.utils.mkdirhier(os.path.dirname(logfn))
+        logfile = open(logfn, 'w')
+    except OSError:
+        logger.exception("Opening log file '%s'", logfn)
+        pass
+
+    # Dup the existing fds so we dont lose them
+    osi = [os.dup(sys.stdin.fileno()), sys.stdin.fileno()]
+    oso = [os.dup(sys.stdout.fileno()), sys.stdout.fileno()]
+    ose = [os.dup(sys.stderr.fileno()), sys.stderr.fileno()]
+
+    # Replace those fds with our own
+    os.dup2(si.fileno(), osi[1])
+    os.dup2(logfile.fileno(), oso[1])
+    os.dup2(logfile.fileno(), ose[1])
+
+    # Ensure Python logging goes to the logfile
+    handler = logging.StreamHandler(logfile)
+    handler.setFormatter(logformatter)
+    # Always enable full debug output into task logfiles
+    handler.setLevel(logging.DEBUG - 2)
+    bblogger.addHandler(handler)
+
+    errchk = ErrorCheckHandler()
+    bblogger.addHandler(errchk)
+
+    localdata.setVar('BB_LOGFILE', logfn)
+    localdata.setVar('BB_RUNTASK', task)
+    localdata.setVar('BB_TASK_LOGGER', bblogger)
+
+    flags = localdata.getVarFlags(task)
+
+    try:
+        try:
+            event.fire(TaskStarted(task, logfn, flags, localdata), localdata)
+        except (bb.BBHandledException, SystemExit):
+            return 1
+        except FuncFailed as exc:
+            logger.error(str(exc))
+            return 1
+
+        try:
+            for func in (prefuncs or '').split():
+                exec_func(func, localdata)
+            exec_func(task, localdata)
+            for func in (postfuncs or '').split():
+                exec_func(func, localdata)
+        except FuncFailed as exc:
+            if quieterr:
+                event.fire(TaskFailedSilent(task, logfn, localdata), localdata)
+            else:
+                errprinted = errchk.triggered
+                logger.error(str(exc))
+                event.fire(TaskFailed(task, logfn, localdata, errprinted), localdata)
+            return 1
+        except bb.BBHandledException:
+            event.fire(TaskFailed(task, logfn, localdata, True), localdata)
+            return 1
+    finally:
+        sys.stdout.flush()
+        sys.stderr.flush()
+
+        bblogger.removeHandler(handler)
+
+        # Restore the backup fds
+        os.dup2(osi[0], osi[1])
+        os.dup2(oso[0], oso[1])
+        os.dup2(ose[0], ose[1])
+
+        # Close the backup fds
+        os.close(osi[0])
+        os.close(oso[0])
+        os.close(ose[0])
+        si.close()
+
+        logfile.close()
+        if os.path.exists(logfn) and os.path.getsize(logfn) == 0:
+            logger.debug(2, "Zero size logfn %s, removing", logfn)
+            bb.utils.remove(logfn)
+            bb.utils.remove(loglink)
+    event.fire(TaskSucceeded(task, logfn, localdata), localdata)
+
+    if not localdata.getVarFlag(task, 'nostamp', False) and not localdata.getVarFlag(task, 'selfstamp', False):
+        make_stamp(task, localdata)
+
+    return 0
+
+def exec_task(fn, task, d, profile = False):
+    try:
+        quieterr = False
+        if d.getVarFlag(task, "quieterrors", False) is not None:
+            quieterr = True
+
+        if profile:
+            profname = "profile-%s.log" % (d.getVar("PN") + "-" + task)
+            try:
+                import cProfile as profile
+            except:
+                import profile
+            prof = profile.Profile()
+            ret = profile.Profile.runcall(prof, _exec_task, fn, task, d, quieterr)
+            prof.dump_stats(profname)
+            bb.utils.process_profilelog(profname)
+
+            return ret
+        else:
+            return _exec_task(fn, task, d, quieterr)
+
+    except Exception:
+        from traceback import format_exc
+        if not quieterr:
+            logger.error("Build of %s failed" % (task))
+            logger.error(format_exc())
+            failedevent = TaskFailed(task, None, d, True)
+            event.fire(failedevent, d)
+        return 1
+
+def stamp_internal(taskname, d, file_name, baseonly=False, noextra=False):
+    """
+    Internal stamp helper function
+    Makes sure the stamp directory exists
+    Returns the stamp path+filename
+
+    In the bitbake core, d can be a CacheData and file_name will be set.
+    When called in task context, d will be a data store, file_name will not be set
+    """
+    taskflagname = taskname
+    if taskname.endswith("_setscene") and taskname != "do_setscene":
+        taskflagname = taskname.replace("_setscene", "")
+
+    if file_name:
+        stamp = d.stamp[file_name]
+        extrainfo = d.stamp_extrainfo[file_name].get(taskflagname) or ""
+    else:
+        stamp = d.getVar('STAMP')
+        file_name = d.getVar('BB_FILENAME')
+        extrainfo = d.getVarFlag(taskflagname, 'stamp-extra-info') or ""
+
+    if baseonly:
+        return stamp
+    if noextra:
+        extrainfo = ""
+
+    if not stamp:
+        return
+
+    stamp = bb.parse.siggen.stampfile(stamp, file_name, taskname, extrainfo)
+
+    stampdir = os.path.dirname(stamp)
+    if cached_mtime_noerror(stampdir) == 0:
+        bb.utils.mkdirhier(stampdir)
+
+    return stamp
+
+def stamp_cleanmask_internal(taskname, d, file_name):
+    """
+    Internal stamp helper function to generate stamp cleaning mask
+    Returns the stamp path+filename
+
+    In the bitbake core, d can be a CacheData and file_name will be set.
+    When called in task context, d will be a data store, file_name will not be set
+    """
+    taskflagname = taskname
+    if taskname.endswith("_setscene") and taskname != "do_setscene":
+        taskflagname = taskname.replace("_setscene", "")
+
+    if file_name:
+        stamp = d.stampclean[file_name]
+        extrainfo = d.stamp_extrainfo[file_name].get(taskflagname) or ""
+    else:
+        stamp = d.getVar('STAMPCLEAN')
+        file_name = d.getVar('BB_FILENAME')
+        extrainfo = d.getVarFlag(taskflagname, 'stamp-extra-info') or ""
+
+    if not stamp:
+        return []
+
+    cleanmask = bb.parse.siggen.stampcleanmask(stamp, file_name, taskname, extrainfo)
+
+    return [cleanmask, cleanmask.replace(taskflagname, taskflagname + "_setscene")]
+
+def make_stamp(task, d, file_name = None):
+    """
+    Creates/updates a stamp for a given task
+    (d can be a data dict or dataCache)
+    """
+    cleanmask = stamp_cleanmask_internal(task, d, file_name)
+    for mask in cleanmask:
+        for name in glob.glob(mask):
+            # Preserve sigdata files in the stamps directory
+            if "sigdata" in name or "sigbasedata" in name:
+                continue
+            # Preserve taint files in the stamps directory
+            if name.endswith('.taint'):
+                continue
+            os.unlink(name)
+
+    stamp = stamp_internal(task, d, file_name)
+    # Remove the file and recreate to force timestamp
+    # change on broken NFS filesystems
+    if stamp:
+        bb.utils.remove(stamp)
+        open(stamp, "w").close()
+
+    # If we're in task context, write out a signature file for each task
+    # as it completes
+    if not task.endswith("_setscene") and task != "do_setscene" and not file_name:
+        stampbase = stamp_internal(task, d, None, True)
+        file_name = d.getVar('BB_FILENAME')
+        bb.parse.siggen.dump_sigtask(file_name, task, stampbase, True)
+
+def del_stamp(task, d, file_name = None):
+    """
+    Removes a stamp for a given task
+    (d can be a data dict or dataCache)
+    """
+    stamp = stamp_internal(task, d, file_name)
+    bb.utils.remove(stamp)
+
+def write_taint(task, d, file_name = None):
+    """
+    Creates a "taint" file which will force the specified task and its
+    dependents to be re-run the next time by influencing the value of its
+    taskhash.
+    (d can be a data dict or dataCache)
+    """
+    import uuid
+    if file_name:
+        taintfn = d.stamp[file_name] + '.' + task + '.taint'
+    else:
+        taintfn = d.getVar('STAMP') + '.' + task + '.taint'
+    bb.utils.mkdirhier(os.path.dirname(taintfn))
+    # The specific content of the taint file is not really important,
+    # we just need it to be random, so a random UUID is used
+    with open(taintfn, 'w') as taintf:
+        taintf.write(str(uuid.uuid4()))
+
+def stampfile(taskname, d, file_name = None, noextra=False):
+    """
+    Return the stamp for a given task
+    (d can be a data dict or dataCache)
+    """
+    return stamp_internal(taskname, d, file_name, noextra=noextra)
+
+def add_tasks(tasklist, d):
+    task_deps = d.getVar('_task_deps', False)
+    if not task_deps:
+        task_deps = {}
+    if not 'tasks' in task_deps:
+        task_deps['tasks'] = []
+    if not 'parents' in task_deps:
+        task_deps['parents'] = {}
+
+    for task in tasklist:
+        task = d.expand(task)
+
+        d.setVarFlag(task, 'task', 1)
+
+        if not task in task_deps['tasks']:
+            task_deps['tasks'].append(task)
+
+        flags = d.getVarFlags(task)
+        def getTask(name):
+            if not name in task_deps:
+                task_deps[name] = {}
+            if name in flags:
+                deptask = d.expand(flags[name])
+                task_deps[name][task] = deptask
+        getTask('depends')
+        getTask('rdepends')
+        getTask('deptask')
+        getTask('rdeptask')
+        getTask('recrdeptask')
+        getTask('recideptask')
+        getTask('nostamp')
+        getTask('fakeroot')
+        getTask('noexec')
+        getTask('umask')
+        task_deps['parents'][task] = []
+        if 'deps' in flags:
+            for dep in flags['deps']:
+                dep = d.expand(dep)
+                task_deps['parents'][task].append(dep)
+
+    # don't assume holding a reference
+    d.setVar('_task_deps', task_deps)
+
+def addtask(task, before, after, d):
+    if task[:3] != "do_":
+        task = "do_" + task
+
+    d.setVarFlag(task, "task", 1)
+    bbtasks = d.getVar('__BBTASKS', False) or []
+    if task not in bbtasks:
+        bbtasks.append(task)
+    d.setVar('__BBTASKS', bbtasks)
+
+    existing = d.getVarFlag(task, "deps", False) or []
+    if after is not None:
+        # set up deps for function
+        for entry in after.split():
+            if entry not in existing:
+                existing.append(entry)
+    d.setVarFlag(task, "deps", existing)
+    if before is not None:
+        # set up things that depend on this func
+        for entry in before.split():
+            existing = d.getVarFlag(entry, "deps", False) or []
+            if task not in existing:
+                d.setVarFlag(entry, "deps", [task] + existing)
+
+def deltask(task, d):
+    if task[:3] != "do_":
+        task = "do_" + task
+
+    bbtasks = d.getVar('__BBTASKS', False) or []
+    if task in bbtasks:
+        bbtasks.remove(task)
+        d.delVarFlag(task, 'task')
+        d.setVar('__BBTASKS', bbtasks)
+
+    d.delVarFlag(task, 'deps')
+    for bbtask in d.getVar('__BBTASKS', False) or []:
+        deps = d.getVarFlag(bbtask, 'deps', False) or []
+        if task in deps:
+            deps.remove(task)
+            d.setVarFlag(bbtask, 'deps', deps)
+
+def preceedtask(task, with_recrdeptasks, d):
+    """
+    Returns a set of tasks in the current recipe which were specified as
+    precondition by the task itself ("after") or which listed themselves
+    as precondition ("before"). Preceeding tasks specified via the
+    "recrdeptask" are included in the result only if requested. Beware
+    that this may lead to the task itself being listed.
+    """
+    preceed = set()
+    preceed.update(d.getVarFlag(task, 'deps') or [])
+    if with_recrdeptasks:
+        recrdeptask = d.getVarFlag(task, 'recrdeptask')
+        if recrdeptask:
+            preceed.update(recrdeptask.split())
+    return preceed
+
+def tasksbetween(task_start, task_end, d):
+    """
+    Return the list of tasks between two tasks in the current recipe,
+    where task_start is to start at and task_end is the task to end at
+    (and task_end has a dependency chain back to task_start).
+    """
+    outtasks = []
+    tasks = list(filter(lambda k: d.getVarFlag(k, "task"), d.keys()))
+    def follow_chain(task, endtask, chain=None):
+        if not chain:
+            chain = []
+        chain.append(task)
+        for othertask in tasks:
+            if othertask == task:
+                continue
+            if task == endtask:
+                for ctask in chain:
+                    if ctask not in outtasks:
+                        outtasks.append(ctask)
+            else:
+                deps = d.getVarFlag(othertask, 'deps', False)
+                if task in deps:
+                    follow_chain(othertask, endtask, chain)
+        chain.pop()
+    follow_chain(task_start, task_end)
+    return outtasks

bitbake/lib/bb/cache.py

@@ -0,0 +1,888 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# BitBake Cache implementation
+#
+# Caching of bitbake variables before task execution
+
+# Copyright (C) 2006        Richard Purdie
+# Copyright (C) 2012        Intel Corporation
+
+# but small sections based on code from bin/bitbake:
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2003, 2004  Phil Blundell
+# Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
+# Copyright (C) 2005        Holger Hans Peter Freyther
+# Copyright (C) 2005        ROAD GmbH
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys
+import logging
+import pickle
+from collections import defaultdict
+import bb.utils
+
+logger = logging.getLogger("BitBake.Cache")
+
+__cache_version__ = "151"
+
+def getCacheFile(path, filename, data_hash):
+    return os.path.join(path, filename + "." + data_hash)
+
+# RecipeInfoCommon defines common data retrieving methods
+# from meta data for caches. CoreRecipeInfo as well as other
+# Extra RecipeInfo needs to inherit this class
+class RecipeInfoCommon(object):
+
+    @classmethod
+    def listvar(cls, var, metadata):
+        return cls.getvar(var, metadata).split()
+
+    @classmethod
+    def intvar(cls, var, metadata):
+        return int(cls.getvar(var, metadata) or 0)
+
+    @classmethod
+    def depvar(cls, var, metadata):
+        return bb.utils.explode_deps(cls.getvar(var, metadata))
+
+    @classmethod
+    def pkgvar(cls, var, packages, metadata):
+        return dict((pkg, cls.depvar("%s_%s" % (var, pkg), metadata))
+                    for pkg in packages)
+
+    @classmethod
+    def taskvar(cls, var, tasks, metadata):
+        return dict((task, cls.getvar("%s_task-%s" % (var, task), metadata))
+                    for task in tasks)
+
+    @classmethod
+    def flaglist(cls, flag, varlist, metadata, squash=False):
+        out_dict = dict((var, metadata.getVarFlag(var, flag))
+                    for var in varlist)
+        if squash:
+            return dict((k,v) for (k,v) in out_dict.items() if v)
+        else:
+            return out_dict
+
+    @classmethod
+    def getvar(cls, var, metadata, expand = True):
+        return metadata.getVar(var, expand) or ''
+
+
+class CoreRecipeInfo(RecipeInfoCommon):
+    __slots__ = ()
+
+    cachefile = "bb_cache.dat"
+
+    def __init__(self, filename, metadata):
+        self.file_depends = metadata.getVar('__depends', False)
+        self.timestamp = bb.parse.cached_mtime(filename)
+        self.variants = self.listvar('__VARIANTS', metadata) + ['']
+        self.appends = self.listvar('__BBAPPEND', metadata)
+        self.nocache = self.getvar('BB_DONT_CACHE', metadata)
+
+        self.skipreason = self.getvar('__SKIPPED', metadata)
+        if self.skipreason:
+            self.pn = self.getvar('PN', metadata) or bb.parse.BBHandler.vars_from_file(filename,metadata)[0]
+            self.skipped = True
+            self.provides  = self.depvar('PROVIDES', metadata)
+            self.rprovides = self.depvar('RPROVIDES', metadata)
+            return
+
+        self.tasks = metadata.getVar('__BBTASKS', False)
+
+        self.pn = self.getvar('PN', metadata)
+        self.packages = self.listvar('PACKAGES', metadata)
+        if not self.packages:
+            self.packages.append(self.pn)
+
+        self.basetaskhashes = self.taskvar('BB_BASEHASH', self.tasks, metadata)
+        self.hashfilename = self.getvar('BB_HASHFILENAME', metadata)
+
+        self.task_deps = metadata.getVar('_task_deps', False) or {'tasks': [], 'parents': {}}
+
+        self.skipped = False
+        self.pe = self.getvar('PE', metadata)
+        self.pv = self.getvar('PV', metadata)
+        self.pr = self.getvar('PR', metadata)
+        self.defaultpref = self.intvar('DEFAULT_PREFERENCE', metadata)
+        self.not_world = self.getvar('EXCLUDE_FROM_WORLD', metadata)
+        self.stamp = self.getvar('STAMP', metadata)
+        self.stampclean = self.getvar('STAMPCLEAN', metadata)
+        self.stamp_extrainfo = self.flaglist('stamp-extra-info', self.tasks, metadata)
+        self.file_checksums = self.flaglist('file-checksums', self.tasks, metadata, True)
+        self.packages_dynamic = self.listvar('PACKAGES_DYNAMIC', metadata)
+        self.depends          = self.depvar('DEPENDS', metadata)
+        self.provides         = self.depvar('PROVIDES', metadata)
+        self.rdepends         = self.depvar('RDEPENDS', metadata)
+        self.rprovides        = self.depvar('RPROVIDES', metadata)
+        self.rrecommends      = self.depvar('RRECOMMENDS', metadata)
+        self.rprovides_pkg    = self.pkgvar('RPROVIDES', self.packages, metadata)
+        self.rdepends_pkg     = self.pkgvar('RDEPENDS', self.packages, metadata)
+        self.rrecommends_pkg  = self.pkgvar('RRECOMMENDS', self.packages, metadata)
+        self.inherits         = self.getvar('__inherit_cache', metadata, expand=False)
+        self.fakerootenv      = self.getvar('FAKEROOTENV', metadata)
+        self.fakerootdirs     = self.getvar('FAKEROOTDIRS', metadata)
+        self.fakerootnoenv    = self.getvar('FAKEROOTNOENV', metadata)
+        self.extradepsfunc    = self.getvar('calculate_extra_depends', metadata)
+
+    @classmethod
+    def init_cacheData(cls, cachedata):
+        # CacheData in Core RecipeInfo Class
+        cachedata.task_deps = {}
+        cachedata.pkg_fn = {}
+        cachedata.pkg_pn = defaultdict(list)
+        cachedata.pkg_pepvpr = {}
+        cachedata.pkg_dp = {}
+
+        cachedata.stamp = {}
+        cachedata.stampclean = {}
+        cachedata.stamp_extrainfo = {}
+        cachedata.file_checksums = {}
+        cachedata.fn_provides = {}
+        cachedata.pn_provides = defaultdict(list)
+        cachedata.all_depends = []
+
+        cachedata.deps = defaultdict(list)
+        cachedata.packages = defaultdict(list)
+        cachedata.providers = defaultdict(list)
+        cachedata.rproviders = defaultdict(list)
+        cachedata.packages_dynamic = defaultdict(list)
+
+        cachedata.rundeps = defaultdict(lambda: defaultdict(list))
+        cachedata.runrecs = defaultdict(lambda: defaultdict(list))
+        cachedata.possible_world = []
+        cachedata.universe_target = []
+        cachedata.hashfn = {}
+
+        cachedata.basetaskhash = {}
+        cachedata.inherits = {}
+        cachedata.fakerootenv = {}
+        cachedata.fakerootnoenv = {}
+        cachedata.fakerootdirs = {}
+        cachedata.extradepsfunc = {}
+
+    def add_cacheData(self, cachedata, fn):
+        cachedata.task_deps[fn] = self.task_deps
+        cachedata.pkg_fn[fn] = self.pn
+        cachedata.pkg_pn[self.pn].append(fn)
+        cachedata.pkg_pepvpr[fn] = (self.pe, self.pv, self.pr)
+        cachedata.pkg_dp[fn] = self.defaultpref
+        cachedata.stamp[fn] = self.stamp
+        cachedata.stampclean[fn] = self.stampclean
+        cachedata.stamp_extrainfo[fn] = self.stamp_extrainfo
+        cachedata.file_checksums[fn] = self.file_checksums
+
+        provides = [self.pn]
+        for provide in self.provides:
+            if provide not in provides:
+                provides.append(provide)
+        cachedata.fn_provides[fn] = provides
+
+        for provide in provides:
+            cachedata.providers[provide].append(fn)
+            if provide not in cachedata.pn_provides[self.pn]:
+                cachedata.pn_provides[self.pn].append(provide)
+
+        for dep in self.depends:
+            if dep not in cachedata.deps[fn]:
+                cachedata.deps[fn].append(dep)
+            if dep not in cachedata.all_depends:
+                cachedata.all_depends.append(dep)
+
+        rprovides = self.rprovides
+        for package in self.packages:
+            cachedata.packages[package].append(fn)
+            rprovides += self.rprovides_pkg[package]
+
+        for rprovide in rprovides:
+            if fn not in cachedata.rproviders[rprovide]:
+                cachedata.rproviders[rprovide].append(fn)
+
+        for package in self.packages_dynamic:
+            cachedata.packages_dynamic[package].append(fn)
+
+        # Build hash of runtime depends and recommends
+        for package in self.packages:
+            cachedata.rundeps[fn][package] = list(self.rdepends) + self.rdepends_pkg[package]
+            cachedata.runrecs[fn][package] = list(self.rrecommends) + self.rrecommends_pkg[package]
+
+        # Collect files we may need for possible world-dep
+        # calculations
+        if self.not_world:
+            logger.debug(1, "EXCLUDE FROM WORLD: %s", fn)
+        else:
+            cachedata.possible_world.append(fn)
+
+        # create a collection of all targets for sanity checking
+        # tasks, such as upstream versions, license, and tools for
+        # task and image creation.
+        cachedata.universe_target.append(self.pn)
+
+        cachedata.hashfn[fn] = self.hashfilename
+        for task, taskhash in self.basetaskhashes.items():
+            identifier = '%s.%s' % (fn, task)
+            cachedata.basetaskhash[identifier] = taskhash
+
+        cachedata.inherits[fn] = self.inherits
+        cachedata.fakerootenv[fn] = self.fakerootenv
+        cachedata.fakerootnoenv[fn] = self.fakerootnoenv
+        cachedata.fakerootdirs[fn] = self.fakerootdirs
+        cachedata.extradepsfunc[fn] = self.extradepsfunc
+
+def virtualfn2realfn(virtualfn):
+    """
+    Convert a virtual file name to a real one + the associated subclass keyword
+    """
+    mc = ""
+    if virtualfn.startswith('multiconfig:'):
+        elems = virtualfn.split(':')
+        mc = elems[1]
+        virtualfn = ":".join(elems[2:])
+
+    fn = virtualfn
+    cls = ""
+    if virtualfn.startswith('virtual:'):
+        elems = virtualfn.split(':')
+        cls = ":".join(elems[1:-1])
+        fn = elems[-1]
+
+    return (fn, cls, mc)
+
+def realfn2virtual(realfn, cls, mc):
+    """
+    Convert a real filename + the associated subclass keyword to a virtual filename
+    """
+    if cls:
+        realfn = "virtual:" + cls + ":" + realfn
+    if mc:
+        realfn = "multiconfig:" + mc + ":" + realfn
+    return realfn
+
+def variant2virtual(realfn, variant):
+    """
+    Convert a real filename + the associated subclass keyword to a virtual filename
+    """
+    if variant == "":
+        return realfn
+    if variant.startswith("multiconfig:"):
+        elems = variant.split(":")
+        if elems[2]:
+            return "multiconfig:" + elems[1] + ":virtual:" + ":".join(elems[2:]) + ":" + realfn
+        return "multiconfig:" + elems[1] + ":" + realfn
+    return "virtual:" + variant + ":" + realfn
+
+def parse_recipe(bb_data, bbfile, appends, mc=''):
+    """
+    Parse a recipe
+    """
+
+    chdir_back = False
+
+    bb_data.setVar("__BBMULTICONFIG", mc)
+
+    # expand tmpdir to include this topdir
+    bb_data.setVar('TMPDIR', bb_data.getVar('TMPDIR') or "")
+    bbfile_loc = os.path.abspath(os.path.dirname(bbfile))
+    oldpath = os.path.abspath(os.getcwd())
+    bb.parse.cached_mtime_noerror(bbfile_loc)
+
+    # The ConfHandler first looks if there is a TOPDIR and if not
+    # then it would call getcwd().
+    # Previously, we chdir()ed to bbfile_loc, called the handler
+    # and finally chdir()ed back, a couple of thousand times. We now
+    # just fill in TOPDIR to point to bbfile_loc if there is no TOPDIR yet.
+    if not bb_data.getVar('TOPDIR', False):
+        chdir_back = True
+        bb_data.setVar('TOPDIR', bbfile_loc)
+    try:
+        if appends:
+            bb_data.setVar('__BBAPPEND', " ".join(appends))
+        bb_data = bb.parse.handle(bbfile, bb_data)
+        if chdir_back:
+            os.chdir(oldpath)
+        return bb_data
+    except:
+        if chdir_back:
+            os.chdir(oldpath)
+        raise
+
+
+
+class NoCache(object):
+
+    def __init__(self, databuilder):
+        self.databuilder = databuilder
+        self.data = databuilder.data
+
+    def loadDataFull(self, virtualfn, appends):
+        """
+        Return a complete set of data for fn.
+        To do this, we need to parse the file.
+        """
+        logger.debug(1, "Parsing %s (full)" % virtualfn)
+        (fn, virtual, mc) = virtualfn2realfn(virtualfn)
+        bb_data = self.load_bbfile(virtualfn, appends, virtonly=True)
+        return bb_data[virtual]
+
+    def load_bbfile(self, bbfile, appends, virtonly = False):
+        """
+        Load and parse one .bb build file
+        Return the data and whether parsing resulted in the file being skipped
+        """
+
+        if virtonly:
+            (bbfile, virtual, mc) = virtualfn2realfn(bbfile)
+            bb_data = self.databuilder.mcdata[mc].createCopy()
+            bb_data.setVar("__ONLYFINALISE", virtual or "default")
+            datastores = parse_recipe(bb_data, bbfile, appends, mc)
+            return datastores
+
+        bb_data = self.data.createCopy()
+        datastores = parse_recipe(bb_data, bbfile, appends)
+
+        for mc in self.databuilder.mcdata:
+            if not mc:
+                continue
+            bb_data = self.databuilder.mcdata[mc].createCopy()
+            newstores = parse_recipe(bb_data, bbfile, appends, mc)
+            for ns in newstores:
+                datastores["multiconfig:%s:%s" % (mc, ns)] = newstores[ns]
+
+        return datastores
+
+class Cache(NoCache):
+    """
+    BitBake Cache implementation
+    """
+
+    def __init__(self, databuilder, data_hash, caches_array):
+        super().__init__(databuilder)
+        data = databuilder.data
+
+        # Pass caches_array information into Cache Constructor
+        # It will be used later for deciding whether we
+        # need extra cache file dump/load support
+        self.caches_array = caches_array
+        self.cachedir = data.getVar("CACHE")
+        self.clean = set()
+        self.checked = set()
+        self.depends_cache = {}
+        self.data_fn = None
+        self.cacheclean = True
+        self.data_hash = data_hash
+
+        if self.cachedir in [None, '']:
+            self.has_cache = False
+            logger.info("Not using a cache. "
+                        "Set CACHE = <directory> to enable.")
+            return
+
+        self.has_cache = True
+        self.cachefile = getCacheFile(self.cachedir, "bb_cache.dat", self.data_hash)
+
+        logger.debug(1, "Using cache in '%s'", self.cachedir)
+        bb.utils.mkdirhier(self.cachedir)
+
+        cache_ok = True
+        if self.caches_array:
+            for cache_class in self.caches_array:
+                cachefile = getCacheFile(self.cachedir, cache_class.cachefile, self.data_hash)
+                cache_ok = cache_ok and os.path.exists(cachefile)
+                cache_class.init_cacheData(self)
+        if cache_ok:
+            self.load_cachefile()
+        elif os.path.isfile(self.cachefile):
+            logger.info("Out of date cache found, rebuilding...")
+
+    def load_cachefile(self):
+        cachesize = 0
+        previous_progress = 0
+        previous_percent = 0
+
+        # Calculate the correct cachesize of all those cache files
+        for cache_class in self.caches_array:
+            cachefile = getCacheFile(self.cachedir, cache_class.cachefile, self.data_hash)
+            with open(cachefile, "rb") as cachefile:
+                cachesize += os.fstat(cachefile.fileno()).st_size
+
+        bb.event.fire(bb.event.CacheLoadStarted(cachesize), self.data)
+
+        for cache_class in self.caches_array:
+            cachefile = getCacheFile(self.cachedir, cache_class.cachefile, self.data_hash)
+            with open(cachefile, "rb") as cachefile:
+                pickled = pickle.Unpickler(cachefile)
+                # Check cache version information
+                try:
+                    cache_ver = pickled.load()
+                    bitbake_ver = pickled.load()
+                except Exception:
+                    logger.info('Invalid cache, rebuilding...')
+                    return
+
+                if cache_ver != __cache_version__:
+                    logger.info('Cache version mismatch, rebuilding...')
+                    return
+                elif bitbake_ver != bb.__version__:
+                    logger.info('Bitbake version mismatch, rebuilding...')
+                    return
+
+                # Load the rest of the cache file
+                current_progress = 0
+                while cachefile:
+                    try:
+                        key = pickled.load()
+                        value = pickled.load()
+                    except Exception:
+                        break
+                    if not isinstance(key, str):
+                        bb.warn("%s from extras cache is not a string?" % key)
+                        break
+                    if not isinstance(value, RecipeInfoCommon):
+                        bb.warn("%s from extras cache is not a RecipeInfoCommon class?" % value)
+                        break
+
+                    if key in self.depends_cache:
+                        self.depends_cache[key].append(value)
+                    else:
+                        self.depends_cache[key] = [value]
+                    # only fire events on even percentage boundaries
+                    current_progress = cachefile.tell() + previous_progress
+                    if current_progress > cachesize:
+                        # we might have calculated incorrect total size because a file
+                        # might've been written out just after we checked its size
+                        cachesize = current_progress
+                    current_percent = 100 * current_progress / cachesize
+                    if current_percent > previous_percent:
+                        previous_percent = current_percent
+                        bb.event.fire(bb.event.CacheLoadProgress(current_progress, cachesize),
+                                      self.data)
+
+                previous_progress += current_progress
+
+        # Note: depends cache number is corresponding to the parsing file numbers.
+        # The same file has several caches, still regarded as one item in the cache
+        bb.event.fire(bb.event.CacheLoadCompleted(cachesize,
+                                                  len(self.depends_cache)),
+                      self.data)
+
+    def parse(self, filename, appends):
+        """Parse the specified filename, returning the recipe information"""
+        logger.debug(1, "Parsing %s", filename)
+        infos = []
+        datastores = self.load_bbfile(filename, appends)
+        depends = []
+        variants = []
+        # Process the "real" fn last so we can store variants list
+        for variant, data in sorted(datastores.items(),
+                                    key=lambda i: i[0],
+                                    reverse=True):
+            virtualfn = variant2virtual(filename, variant)
+            variants.append(variant)
+            depends = depends + (data.getVar("__depends", False) or [])
+            if depends and not variant:
+                data.setVar("__depends", depends)
+            if virtualfn == filename:
+                data.setVar("__VARIANTS", " ".join(variants))
+            info_array = []
+            for cache_class in self.caches_array:
+                info = cache_class(filename, data)
+                info_array.append(info)
+            infos.append((virtualfn, info_array))
+
+        return infos
+
+    def load(self, filename, appends):
+        """Obtain the recipe information for the specified filename,
+        using cached values if available, otherwise parsing.
+
+        Note that if it does parse to obtain the info, it will not
+        automatically add the information to the cache or to your
+        CacheData.  Use the add or add_info method to do so after
+        running this, or use loadData instead."""
+        cached = self.cacheValid(filename, appends)
+        if cached:
+            infos = []
+            # info_array item is a list of [CoreRecipeInfo, XXXRecipeInfo]
+            info_array = self.depends_cache[filename]
+            for variant in info_array[0].variants:
+                virtualfn = variant2virtual(filename, variant)
+                infos.append((virtualfn, self.depends_cache[virtualfn]))
+        else:
+            return self.parse(filename, appends, configdata, self.caches_array)
+
+        return cached, infos
+
+    def loadData(self, fn, appends, cacheData):
+        """Load the recipe info for the specified filename,
+        parsing and adding to the cache if necessary, and adding
+        the recipe information to the supplied CacheData instance."""
+        skipped, virtuals = 0, 0
+
+        cached, infos = self.load(fn, appends)
+        for virtualfn, info_array in infos:
+            if info_array[0].skipped:
+                logger.debug(1, "Skipping %s: %s", virtualfn, info_array[0].skipreason)
+                skipped += 1
+            else:
+                self.add_info(virtualfn, info_array, cacheData, not cached)
+                virtuals += 1
+
+        return cached, skipped, virtuals
+
+    def cacheValid(self, fn, appends):
+        """
+        Is the cache valid for fn?
+        Fast version, no timestamps checked.
+        """
+        if fn not in self.checked:
+            self.cacheValidUpdate(fn, appends)
+
+        # Is cache enabled?
+        if not self.has_cache:
+            return False
+        if fn in self.clean:
+            return True
+        return False
+
+    def cacheValidUpdate(self, fn, appends):
+        """
+        Is the cache valid for fn?
+        Make thorough (slower) checks including timestamps.
+        """
+        # Is cache enabled?
+        if not self.has_cache:
+            return False
+
+        self.checked.add(fn)
+
+        # File isn't in depends_cache
+        if not fn in self.depends_cache:
+            logger.debug(2, "Cache: %s is not cached", fn)
+            return False
+
+        mtime = bb.parse.cached_mtime_noerror(fn)
+
+        # Check file still exists
+        if mtime == 0:
+            logger.debug(2, "Cache: %s no longer exists", fn)
+            self.remove(fn)
+            return False
+
+        info_array = self.depends_cache[fn]
+        # Check the file's timestamp
+        if mtime != info_array[0].timestamp:
+            logger.debug(2, "Cache: %s changed", fn)
+            self.remove(fn)
+            return False
+
+        # Check dependencies are still valid
+        depends = info_array[0].file_depends
+        if depends:
+            for f, old_mtime in depends:
+                fmtime = bb.parse.cached_mtime_noerror(f)
+                # Check if file still exists
+                if old_mtime != 0 and fmtime == 0:
+                    logger.debug(2, "Cache: %s's dependency %s was removed",
+                                    fn, f)
+                    self.remove(fn)
+                    return False
+
+                if (fmtime != old_mtime):
+                    logger.debug(2, "Cache: %s's dependency %s changed",
+                                    fn, f)
+                    self.remove(fn)
+                    return False
+
+        if hasattr(info_array[0], 'file_checksums'):
+            for _, fl in info_array[0].file_checksums.items():
+                fl = fl.strip()
+                while fl:
+                    # A .split() would be simpler but means spaces or colons in filenames would break
+                    a = fl.find(":True")
+                    b = fl.find(":False")
+                    if ((a < 0) and b) or ((b > 0) and (b < a)):
+                        f = fl[:b+6]
+                        fl = fl[b+7:]
+                    elif ((b < 0) and a) or ((a > 0) and (a < b)):
+                        f = fl[:a+5]
+                        fl = fl[a+6:]
+                    else:
+                        break
+                    fl = fl.strip()
+                    if "*" in f:
+                        continue
+                    f, exist = f.split(":")
+                    if (exist == "True" and not os.path.exists(f)) or (exist == "False" and os.path.exists(f)):
+                        logger.debug(2, "Cache: %s's file checksum list file %s changed",
+                                        fn, f)
+                        self.remove(fn)
+                        return False
+
+        if appends != info_array[0].appends:
+            logger.debug(2, "Cache: appends for %s changed", fn)
+            logger.debug(2, "%s to %s" % (str(appends), str(info_array[0].appends)))
+            self.remove(fn)
+            return False
+
+        invalid = False
+        for cls in info_array[0].variants:
+            virtualfn = variant2virtual(fn, cls)
+            self.clean.add(virtualfn)
+            if virtualfn not in self.depends_cache:
+                logger.debug(2, "Cache: %s is not cached", virtualfn)
+                invalid = True
+            elif len(self.depends_cache[virtualfn]) != len(self.caches_array):
+                logger.debug(2, "Cache: Extra caches missing for %s?" % virtualfn)
+                invalid = True
+
+        # If any one of the variants is not present, mark as invalid for all
+        if invalid:
+            for cls in info_array[0].variants:
+                virtualfn = variant2virtual(fn, cls)
+                if virtualfn in self.clean:
+                    logger.debug(2, "Cache: Removing %s from cache", virtualfn)
+                    self.clean.remove(virtualfn)
+            if fn in self.clean:
+                logger.debug(2, "Cache: Marking %s as not clean", fn)
+                self.clean.remove(fn)
+            return False
+
+        self.clean.add(fn)
+        return True
+
+    def remove(self, fn):
+        """
+        Remove a fn from the cache
+        Called from the parser in error cases
+        """
+        if fn in self.depends_cache:
+            logger.debug(1, "Removing %s from cache", fn)
+            del self.depends_cache[fn]
+        if fn in self.clean:
+            logger.debug(1, "Marking %s as unclean", fn)
+            self.clean.remove(fn)
+
+    def sync(self):
+        """
+        Save the cache
+        Called from the parser when complete (or exiting)
+        """
+
+        if not self.has_cache:
+            return
+
+        if self.cacheclean:
+            logger.debug(2, "Cache is clean, not saving.")
+            return
+
+        for cache_class in self.caches_array:
+            cache_class_name = cache_class.__name__
+            cachefile = getCacheFile(self.cachedir, cache_class.cachefile, self.data_hash)
+            with open(cachefile, "wb") as f:
+                p = pickle.Pickler(f, pickle.HIGHEST_PROTOCOL)
+                p.dump(__cache_version__)
+                p.dump(bb.__version__)
+
+                for key, info_array in self.depends_cache.items():
+                    for info in info_array:
+                        if isinstance(info, RecipeInfoCommon) and info.__class__.__name__ == cache_class_name:
+                            p.dump(key)
+                            p.dump(info)
+
+        del self.depends_cache
+
+    @staticmethod
+    def mtime(cachefile):
+        return bb.parse.cached_mtime_noerror(cachefile)
+
+    def add_info(self, filename, info_array, cacheData, parsed=None, watcher=None):
+        if isinstance(info_array[0], CoreRecipeInfo) and (not info_array[0].skipped):
+            cacheData.add_from_recipeinfo(filename, info_array)
+
+            if watcher:
+                watcher(info_array[0].file_depends)
+
+        if not self.has_cache:
+            return
+
+        if (info_array[0].skipped or 'SRCREVINACTION' not in info_array[0].pv) and not info_array[0].nocache:
+            if parsed:
+                self.cacheclean = False
+            self.depends_cache[filename] = info_array
+
+    def add(self, file_name, data, cacheData, parsed=None):
+        """
+        Save data we need into the cache
+        """
+
+        realfn = virtualfn2realfn(file_name)[0]
+
+        info_array = []
+        for cache_class in self.caches_array:
+            info_array.append(cache_class(realfn, data))
+        self.add_info(file_name, info_array, cacheData, parsed)
+
+
+def init(cooker):
+    """
+    The Objective: Cache the minimum amount of data possible yet get to the
+    stage of building packages (i.e. tryBuild) without reparsing any .bb files.
+
+    To do this, we intercept getVar calls and only cache the variables we see
+    being accessed. We rely on the cache getVar calls being made for all
+    variables bitbake might need to use to reach this stage. For each cached
+    file we need to track:
+
+    * Its mtime
+    * The mtimes of all its dependencies
+    * Whether it caused a parse.SkipRecipe exception
+
+    Files causing parsing errors are evicted from the cache.
+
+    """
+    return Cache(cooker.configuration.data, cooker.configuration.data_hash)
+
+
+class CacheData(object):
+    """
+    The data structures we compile from the cached data
+    """
+
+    def __init__(self, caches_array):
+        self.caches_array = caches_array
+        for cache_class in self.caches_array:
+            if not issubclass(cache_class, RecipeInfoCommon):
+                bb.error("Extra cache data class %s should subclass RecipeInfoCommon class" % cache_class)
+            cache_class.init_cacheData(self)
+
+        # Direct cache variables
+        self.task_queues = {}
+        self.preferred = {}
+        self.tasks = {}
+        # Indirect Cache variables (set elsewhere)
+        self.ignored_dependencies = []
+        self.world_target = set()
+        self.bbfile_priority = {}
+
+    def add_from_recipeinfo(self, fn, info_array):
+        for info in info_array:
+            info.add_cacheData(self, fn)
+
+class MultiProcessCache(object):
+    """
+    BitBake multi-process cache implementation
+
+    Used by the codeparser & file checksum caches
+    """
+
+    def __init__(self):
+        self.cachefile = None
+        self.cachedata = self.create_cachedata()
+        self.cachedata_extras = self.create_cachedata()
+
+    def init_cache(self, d, cache_file_name=None):
+        cachedir = (d.getVar("PERSISTENT_DIR") or
+                    d.getVar("CACHE"))
+        if cachedir in [None, '']:
+            return
+        bb.utils.mkdirhier(cachedir)
+        self.cachefile = os.path.join(cachedir,
+                                      cache_file_name or self.__class__.cache_file_name)
+        logger.debug(1, "Using cache in '%s'", self.cachefile)
+
+        glf = bb.utils.lockfile(self.cachefile + ".lock")
+
+        try:
+            with open(self.cachefile, "rb") as f:
+                p = pickle.Unpickler(f)
+                data, version = p.load()
+        except:
+            bb.utils.unlockfile(glf)
+            return
+
+        bb.utils.unlockfile(glf)
+
+        if version != self.__class__.CACHE_VERSION:
+            return
+
+        self.cachedata = data
+
+    def create_cachedata(self):
+        data = [{}]
+        return data
+
+    def save_extras(self):
+        if not self.cachefile:
+            return
+
+        glf = bb.utils.lockfile(self.cachefile + ".lock", shared=True)
+
+        i = os.getpid()
+        lf = None
+        while not lf:
+            lf = bb.utils.lockfile(self.cachefile + ".lock." + str(i), retry=False)
+            if not lf or os.path.exists(self.cachefile + "-" + str(i)):
+                if lf:
+                    bb.utils.unlockfile(lf)
+                    lf = None
+                i = i + 1
+                continue
+
+            with open(self.cachefile + "-" + str(i), "wb") as f:
+                p = pickle.Pickler(f, -1)
+                p.dump([self.cachedata_extras, self.__class__.CACHE_VERSION])
+
+        bb.utils.unlockfile(lf)
+        bb.utils.unlockfile(glf)
+
+    def merge_data(self, source, dest):
+        for j in range(0,len(dest)):
+            for h in source[j]:
+                if h not in dest[j]:
+                    dest[j][h] = source[j][h]
+
+    def save_merge(self):
+        if not self.cachefile:
+            return
+
+        glf = bb.utils.lockfile(self.cachefile + ".lock")
+
+        data = self.cachedata
+
+        for f in [y for y in os.listdir(os.path.dirname(self.cachefile)) if y.startswith(os.path.basename(self.cachefile) + '-')]:
+            f = os.path.join(os.path.dirname(self.cachefile), f)
+            try:
+                with open(f, "rb") as fd:
+                    p = pickle.Unpickler(fd)
+                    extradata, version = p.load()
+            except (IOError, EOFError):
+                os.unlink(f)
+                continue
+
+            if version != self.__class__.CACHE_VERSION:
+                os.unlink(f)
+                continue
+
+            self.merge_data(extradata, data)
+            os.unlink(f)
+
+        with open(self.cachefile, "wb") as f:
+            p = pickle.Pickler(f, -1)
+            p.dump([data, self.__class__.CACHE_VERSION])
+
+        bb.utils.unlockfile(glf)

bitbake/lib/bb/cache_extra.py

@@ -0,0 +1,75 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Extra RecipeInfo will be all defined in this file. Currently,
+# Only Hob (Image Creator) Requests some extra fields. So
+# HobRecipeInfo is defined. It's named HobRecipeInfo because it
+# is introduced by 'hob'. Users could also introduce other
+# RecipeInfo or simply use those already defined RecipeInfo.
+# In the following patch, this newly defined new extra RecipeInfo
+# will be dynamically loaded and used for loading/saving the extra
+# cache fields  
+
+# Copyright (C) 2011, Intel Corporation. All rights reserved.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from bb.cache import RecipeInfoCommon
+
+class HobRecipeInfo(RecipeInfoCommon):
+    __slots__ = ()
+
+    classname = "HobRecipeInfo"
+    # please override this member with the correct data cache file
+    # such as (bb_cache.dat, bb_extracache_hob.dat) 
+    cachefile = "bb_extracache_" + classname +".dat"        
+
+    # override this member with the list of extra cache fields
+    # that this class will provide
+    cachefields = ['summary', 'license', 'section',
+            'description', 'homepage', 'bugtracker',
+            'prevision', 'files_info']
+
+    def __init__(self, filename, metadata):
+
+        self.summary = self.getvar('SUMMARY', metadata)
+        self.license = self.getvar('LICENSE', metadata)
+        self.section = self.getvar('SECTION', metadata)
+        self.description = self.getvar('DESCRIPTION', metadata)
+        self.homepage = self.getvar('HOMEPAGE', metadata)
+        self.bugtracker = self.getvar('BUGTRACKER', metadata)
+        self.prevision = self.getvar('PR', metadata)
+        self.files_info = self.getvar('FILES_INFO', metadata)
+
+    @classmethod
+    def init_cacheData(cls, cachedata):
+        # CacheData in Hob RecipeInfo Class
+        cachedata.summary = {}
+        cachedata.license = {}
+        cachedata.section = {}
+        cachedata.description = {}
+        cachedata.homepage = {}
+        cachedata.bugtracker = {}
+        cachedata.prevision = {}
+        cachedata.files_info = {}
+
+    def add_cacheData(self, cachedata, fn):
+        cachedata.summary[fn] = self.summary
+        cachedata.license[fn] = self.license
+        cachedata.section[fn] = self.section
+        cachedata.description[fn] = self.description
+        cachedata.homepage[fn] = self.homepage
+        cachedata.bugtracker[fn] = self.bugtracker
+        cachedata.prevision[fn] = self.prevision
+        cachedata.files_info[fn] = self.files_info

bitbake/lib/bb/checksum.py

@@ -0,0 +1,134 @@
+# Local file checksum cache implementation
+#
+# Copyright (C) 2012 Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import glob
+import operator
+import os
+import stat
+import pickle
+import bb.utils
+import logging
+from bb.cache import MultiProcessCache
+
+logger = logging.getLogger("BitBake.Cache")
+
+# mtime cache (non-persistent)
+# based upon the assumption that files do not change during bitbake run
+class FileMtimeCache(object):
+    cache = {}
+
+    def cached_mtime(self, f):
+        if f not in self.cache:
+            self.cache[f] = os.stat(f)[stat.ST_MTIME]
+        return self.cache[f]
+
+    def cached_mtime_noerror(self, f):
+        if f not in self.cache:
+            try:
+                self.cache[f] = os.stat(f)[stat.ST_MTIME]
+            except OSError:
+                return 0
+        return self.cache[f]
+
+    def update_mtime(self, f):
+        self.cache[f] = os.stat(f)[stat.ST_MTIME]
+        return self.cache[f]
+
+    def clear(self):
+        self.cache.clear()
+
+# Checksum + mtime cache (persistent)
+class FileChecksumCache(MultiProcessCache):
+    cache_file_name = "local_file_checksum_cache.dat"
+    CACHE_VERSION = 1
+
+    def __init__(self):
+        self.mtime_cache = FileMtimeCache()
+        MultiProcessCache.__init__(self)
+
+    def get_checksum(self, f):
+        entry = self.cachedata[0].get(f)
+        cmtime = self.mtime_cache.cached_mtime(f)
+        if entry:
+            (mtime, hashval) = entry
+            if cmtime == mtime:
+                return hashval
+            else:
+                bb.debug(2, "file %s changed mtime, recompute checksum" % f)
+
+        hashval = bb.utils.md5_file(f)
+        self.cachedata_extras[0][f] = (cmtime, hashval)
+        return hashval
+
+    def merge_data(self, source, dest):
+        for h in source[0]:
+            if h in dest:
+                (smtime, _) = source[0][h]
+                (dmtime, _) = dest[0][h]
+                if smtime > dmtime:
+                    dest[0][h] = source[0][h]
+            else:
+                dest[0][h] = source[0][h]
+
+    def get_checksums(self, filelist, pn):
+        """Get checksums for a list of files"""
+
+        def checksum_file(f):
+            try:
+                checksum = self.get_checksum(f)
+            except OSError as e:
+                bb.warn("Unable to get checksum for %s SRC_URI entry %s: %s" % (pn, os.path.basename(f), e))
+                return None
+            return checksum
+
+        def checksum_dir(pth):
+            # Handle directories recursively
+            dirchecksums = []
+            for root, dirs, files in os.walk(pth):
+                for name in files:
+                    fullpth = os.path.join(root, name)
+                    checksum = checksum_file(fullpth)
+                    if checksum:
+                        dirchecksums.append((fullpth, checksum))
+            return dirchecksums
+
+        checksums = []
+        for pth in filelist.split():
+            exist = pth.split(":")[1]
+            if exist == "False":
+                continue
+            pth = pth.split(":")[0]
+            if '*' in pth:
+                # Handle globs
+                for f in glob.glob(pth):
+                    if os.path.isdir(f):
+                        if not os.path.islink(f):
+                            checksums.extend(checksum_dir(f))
+                    else:
+                        checksum = checksum_file(f)
+                        if checksum:
+                            checksums.append((f, checksum))
+            elif os.path.isdir(pth):
+                if not os.path.islink(pth):
+                    checksums.extend(checksum_dir(pth))
+            else:
+                checksum = checksum_file(pth)
+                if checksum:
+                    checksums.append((pth, checksum))
+
+        checksums.sort(key=operator.itemgetter(1))
+        return checksums

bitbake/lib/bb/codeparser.py

@@ -0,0 +1,476 @@
+"""
+BitBake code parser
+
+Parses actual code (i.e. python and shell) for functions and in-line
+expressions. Used mainly to determine dependencies on other functions
+and variables within the BitBake metadata. Also provides a cache for
+this information in order to speed up processing.
+
+(Not to be confused with the code that parses the metadata itself,
+see lib/bb/parse/ for that).
+
+NOTE: if you change how the parsers gather information you will almost
+certainly need to increment CodeParserCache.CACHE_VERSION below so that
+any existing codeparser cache gets invalidated. Additionally you'll need
+to increment __cache_version__ in cache.py in order to ensure that old
+recipe caches don't trigger "Taskhash mismatch" errors.
+
+"""
+
+import ast
+import sys
+import codegen
+import logging
+import pickle
+import bb.pysh as pysh
+import os.path
+import bb.utils, bb.data
+import hashlib
+from itertools import chain
+from bb.pysh import pyshyacc, pyshlex, sherrors
+from bb.cache import MultiProcessCache
+
+logger = logging.getLogger('BitBake.CodeParser')
+
+def bbhash(s):
+    return hashlib.md5(s.encode("utf-8")).hexdigest()
+
+def check_indent(codestr):
+    """If the code is indented, add a top level piece of code to 'remove' the indentation"""
+
+    i = 0
+    while codestr[i] in ["\n", "\t", " "]:
+        i = i + 1
+
+    if i == 0:
+        return codestr
+
+    if codestr[i-1] == "\t" or codestr[i-1] == " ":
+        if codestr[0] == "\n":
+            # Since we're adding a line, we need to remove one line of any empty padding
+            # to ensure line numbers are correct
+            codestr = codestr[1:]
+        return "if 1:\n" + codestr
+
+    return codestr
+
+
+# Basically pickle, in python 2.7.3 at least, does badly with data duplication 
+# upon pickling and unpickling. Combine this with duplicate objects and things
+# are a mess.
+#
+# When the sets are originally created, python calls intern() on the set keys
+# which significantly improves memory usage. Sadly the pickle/unpickle process
+# doesn't call intern() on the keys and results in the same strings being duplicated
+# in memory. This also means pickle will save the same string multiple times in
+# the cache file.
+#
+# By having shell and python cacheline objects with setstate/getstate, we force
+# the object creation through our own routine where we can call intern (via internSet).
+#
+# We also use hashable frozensets and ensure we use references to these so that
+# duplicates can be removed, both in memory and in the resulting pickled data.
+#
+# By playing these games, the size of the cache file shrinks dramatically
+# meaning faster load times and the reloaded cache files also consume much less
+# memory. Smaller cache files, faster load times and lower memory usage is good.
+#
+# A custom getstate/setstate using tuples is actually worth 15% cachesize by
+# avoiding duplication of the attribute names!
+
+class SetCache(object):
+    def __init__(self):
+        self.setcache = {}
+
+    def internSet(self, items):
+        
+        new = []
+        for i in items:
+            new.append(sys.intern(i))
+        s = frozenset(new)
+        h = hash(s)
+        if h in self.setcache:
+            return self.setcache[h]
+        self.setcache[h] = s
+        return s
+
+codecache = SetCache()
+
+class pythonCacheLine(object):
+    def __init__(self, refs, execs, contains):
+        self.refs = codecache.internSet(refs)
+        self.execs = codecache.internSet(execs)
+        self.contains = {}
+        for c in contains:
+            self.contains[c] = codecache.internSet(contains[c])
+
+    def __getstate__(self):
+        return (self.refs, self.execs, self.contains)
+
+    def __setstate__(self, state):
+        (refs, execs, contains) = state
+        self.__init__(refs, execs, contains)
+    def __hash__(self):
+        l = (hash(self.refs), hash(self.execs))
+        for c in sorted(self.contains.keys()):
+            l = l + (c, hash(self.contains[c]))
+        return hash(l)
+    def __repr__(self):
+        return " ".join([str(self.refs), str(self.execs), str(self.contains)]) 
+
+
+class shellCacheLine(object):
+    def __init__(self, execs):
+        self.execs = codecache.internSet(execs)
+
+    def __getstate__(self):
+        return (self.execs)
+
+    def __setstate__(self, state):
+        (execs) = state
+        self.__init__(execs)
+    def __hash__(self):
+        return hash(self.execs)
+    def __repr__(self):
+        return str(self.execs)
+
+class CodeParserCache(MultiProcessCache):
+    cache_file_name = "bb_codeparser.dat"
+    # NOTE: you must increment this if you change how the parsers gather information,
+    # so that an existing cache gets invalidated. Additionally you'll need
+    # to increment __cache_version__ in cache.py in order to ensure that old
+    # recipe caches don't trigger "Taskhash mismatch" errors.
+    CACHE_VERSION = 9
+
+    def __init__(self):
+        MultiProcessCache.__init__(self)
+        self.pythoncache = self.cachedata[0]
+        self.shellcache = self.cachedata[1]
+        self.pythoncacheextras = self.cachedata_extras[0]
+        self.shellcacheextras = self.cachedata_extras[1]
+
+        # To avoid duplication in the codeparser cache, keep
+        # a lookup of hashes of objects we already have
+        self.pythoncachelines = {}
+        self.shellcachelines = {}
+
+    def newPythonCacheLine(self, refs, execs, contains):
+        cacheline = pythonCacheLine(refs, execs, contains)
+        h = hash(cacheline)
+        if h in self.pythoncachelines:
+            return self.pythoncachelines[h]
+        self.pythoncachelines[h] = cacheline
+        return cacheline
+
+    def newShellCacheLine(self, execs):
+        cacheline = shellCacheLine(execs)
+        h = hash(cacheline)
+        if h in self.shellcachelines:
+            return self.shellcachelines[h]
+        self.shellcachelines[h] = cacheline
+        return cacheline
+
+    def init_cache(self, d):
+        # Check if we already have the caches
+        if self.pythoncache:
+            return
+
+        MultiProcessCache.init_cache(self, d)
+
+        # cachedata gets re-assigned in the parent
+        self.pythoncache = self.cachedata[0]
+        self.shellcache = self.cachedata[1]
+
+    def create_cachedata(self):
+        data = [{}, {}]
+        return data
+
+codeparsercache = CodeParserCache()
+
+def parser_cache_init(d):
+    codeparsercache.init_cache(d)
+
+def parser_cache_save():
+    codeparsercache.save_extras()
+
+def parser_cache_savemerge():
+    codeparsercache.save_merge()
+
+Logger = logging.getLoggerClass()
+class BufferedLogger(Logger):
+    def __init__(self, name, level=0, target=None):
+        Logger.__init__(self, name)
+        self.setLevel(level)
+        self.buffer = []
+        self.target = target
+
+    def handle(self, record):
+        self.buffer.append(record)
+
+    def flush(self):
+        for record in self.buffer:
+            if self.target.isEnabledFor(record.levelno):
+                self.target.handle(record)
+        self.buffer = []
+
+class PythonParser():
+    getvars = (".getVar", ".appendVar", ".prependVar")
+    getvarflags = (".getVarFlag", ".appendVarFlag", ".prependVarFlag")
+    containsfuncs = ("bb.utils.contains", "base_contains")
+    containsanyfuncs = ("bb.utils.contains_any",  "bb.utils.filter")
+    execfuncs = ("bb.build.exec_func", "bb.build.exec_task")
+
+    def warn(self, func, arg):
+        """Warn about calls of bitbake APIs which pass a non-literal
+        argument for the variable name, as we're not able to track such
+        a reference.
+        """
+
+        try:
+            funcstr = codegen.to_source(func)
+            argstr = codegen.to_source(arg)
+        except TypeError:
+            self.log.debug(2, 'Failed to convert function and argument to source form')
+        else:
+            self.log.debug(1, self.unhandled_message % (funcstr, argstr))
+
+    def visit_Call(self, node):
+        name = self.called_node_name(node.func)
+        if name and (name.endswith(self.getvars) or name.endswith(self.getvarflags) or name in self.containsfuncs or name in self.containsanyfuncs):
+            if isinstance(node.args[0], ast.Str):
+                varname = node.args[0].s
+                if name in self.containsfuncs and isinstance(node.args[1], ast.Str):
+                    if varname not in self.contains:
+                        self.contains[varname] = set()
+                    self.contains[varname].add(node.args[1].s)
+                elif name in self.containsanyfuncs and isinstance(node.args[1], ast.Str):
+                    if varname not in self.contains:
+                        self.contains[varname] = set()
+                    self.contains[varname].update(node.args[1].s.split())
+                elif name.endswith(self.getvarflags):
+                    if isinstance(node.args[1], ast.Str):
+                        self.references.add('%s[%s]' % (varname, node.args[1].s))
+                    else:
+                        self.warn(node.func, node.args[1])
+                else:
+                    self.references.add(varname)
+            else:
+                self.warn(node.func, node.args[0])
+        elif name and name.endswith(".expand"):
+            if isinstance(node.args[0], ast.Str):
+                value = node.args[0].s
+                d = bb.data.init()
+                parser = d.expandWithRefs(value, self.name)
+                self.references |= parser.references
+                self.execs |= parser.execs
+                for varname in parser.contains:
+                    if varname not in self.contains:
+                        self.contains[varname] = set()
+                    self.contains[varname] |= parser.contains[varname]
+        elif name in self.execfuncs:
+            if isinstance(node.args[0], ast.Str):
+                self.var_execs.add(node.args[0].s)
+            else:
+                self.warn(node.func, node.args[0])
+        elif name and isinstance(node.func, (ast.Name, ast.Attribute)):
+            self.execs.add(name)
+
+    def called_node_name(self, node):
+        """Given a called node, return its original string form"""
+        components = []
+        while node:
+            if isinstance(node, ast.Attribute):
+                components.append(node.attr)
+                node = node.value
+            elif isinstance(node, ast.Name):
+                components.append(node.id)
+                return '.'.join(reversed(components))
+            else:
+                break
+
+    def __init__(self, name, log):
+        self.name = name
+        self.var_execs = set()
+        self.contains = {}
+        self.execs = set()
+        self.references = set()
+        self.log = BufferedLogger('BitBake.Data.PythonParser', logging.DEBUG, log)
+
+        self.unhandled_message = "in call of %s, argument '%s' is not a string literal"
+        self.unhandled_message = "while parsing %s, %s" % (name, self.unhandled_message)
+
+    def parse_python(self, node, lineno=0, filename="<string>"):
+        if not node or not node.strip():
+            return
+
+        h = bbhash(str(node))
+
+        if h in codeparsercache.pythoncache:
+            self.references = set(codeparsercache.pythoncache[h].refs)
+            self.execs = set(codeparsercache.pythoncache[h].execs)
+            self.contains = {}
+            for i in codeparsercache.pythoncache[h].contains:
+                self.contains[i] = set(codeparsercache.pythoncache[h].contains[i])
+            return
+
+        if h in codeparsercache.pythoncacheextras:
+            self.references = set(codeparsercache.pythoncacheextras[h].refs)
+            self.execs = set(codeparsercache.pythoncacheextras[h].execs)
+            self.contains = {}
+            for i in codeparsercache.pythoncacheextras[h].contains:
+                self.contains[i] = set(codeparsercache.pythoncacheextras[h].contains[i])
+            return
+
+        # We can't add to the linenumbers for compile, we can pad to the correct number of blank lines though
+        node = "\n" * int(lineno) + node
+        code = compile(check_indent(str(node)), filename, "exec",
+                       ast.PyCF_ONLY_AST)
+
+        for n in ast.walk(code):
+            if n.__class__.__name__ == "Call":
+                self.visit_Call(n)
+
+        self.execs.update(self.var_execs)
+
+        codeparsercache.pythoncacheextras[h] = codeparsercache.newPythonCacheLine(self.references, self.execs, self.contains)
+
+class ShellParser():
+    def __init__(self, name, log):
+        self.funcdefs = set()
+        self.allexecs = set()
+        self.execs = set()
+        self.log = BufferedLogger('BitBake.Data.%s' % name, logging.DEBUG, log)
+        self.unhandled_template = "unable to handle non-literal command '%s'"
+        self.unhandled_template = "while parsing %s, %s" % (name, self.unhandled_template)
+
+    def parse_shell(self, value):
+        """Parse the supplied shell code in a string, returning the external
+        commands it executes.
+        """
+
+        h = bbhash(str(value))
+
+        if h in codeparsercache.shellcache:
+            self.execs = set(codeparsercache.shellcache[h].execs)
+            return self.execs
+
+        if h in codeparsercache.shellcacheextras:
+            self.execs = set(codeparsercache.shellcacheextras[h].execs)
+            return self.execs
+
+        self._parse_shell(value)
+        self.execs = set(cmd for cmd in self.allexecs if cmd not in self.funcdefs)
+
+        codeparsercache.shellcacheextras[h] = codeparsercache.newShellCacheLine(self.execs)
+
+        return self.execs
+
+    def _parse_shell(self, value):
+        try:
+            tokens, _ = pyshyacc.parse(value, eof=True, debug=False)
+        except pyshlex.NeedMore:
+            raise sherrors.ShellSyntaxError("Unexpected EOF")
+
+        self.process_tokens(tokens)
+
+    def process_tokens(self, tokens):
+        """Process a supplied portion of the syntax tree as returned by
+        pyshyacc.parse.
+        """
+
+        def function_definition(value):
+            self.funcdefs.add(value.name)
+            return [value.body], None
+
+        def case_clause(value):
+            # Element 0 of each item in the case is the list of patterns, and
+            # Element 1 of each item in the case is the list of commands to be
+            # executed when that pattern matches.
+            words = chain(*[item[0] for item in value.items])
+            cmds  = chain(*[item[1] for item in value.items])
+            return cmds, words
+
+        def if_clause(value):
+            main = chain(value.cond, value.if_cmds)
+            rest = value.else_cmds
+            if isinstance(rest, tuple) and rest[0] == "elif":
+                return chain(main, if_clause(rest[1]))
+            else:
+                return chain(main, rest)
+
+        def simple_command(value):
+            return None, chain(value.words, (assign[1] for assign in value.assigns))
+
+        token_handlers = {
+            "and_or": lambda x: ((x.left, x.right), None),
+            "async": lambda x: ([x], None),
+            "brace_group": lambda x: (x.cmds, None),
+            "for_clause": lambda x: (x.cmds, x.items),
+            "function_definition": function_definition,
+            "if_clause": lambda x: (if_clause(x), None),
+            "pipeline": lambda x: (x.commands, None),
+            "redirect_list": lambda x: ([x.cmd], None),
+            "subshell": lambda x: (x.cmds, None),
+            "while_clause": lambda x: (chain(x.condition, x.cmds), None),
+            "until_clause": lambda x: (chain(x.condition, x.cmds), None),
+            "simple_command": simple_command,
+            "case_clause": case_clause,
+        }
+
+        def process_token_list(tokens):
+            for token in tokens:
+                if isinstance(token, list):
+                    process_token_list(token)
+                    continue
+                name, value = token
+                try:
+                    more_tokens, words = token_handlers[name](value)
+                except KeyError:
+                    raise NotImplementedError("Unsupported token type " + name)
+
+                if more_tokens:
+                    self.process_tokens(more_tokens)
+
+                if words:
+                    self.process_words(words)
+
+        process_token_list(tokens)
+
+    def process_words(self, words):
+        """Process a set of 'words' in pyshyacc parlance, which includes
+        extraction of executed commands from $() blocks, as well as grabbing
+        the command name argument.
+        """
+
+        words = list(words)
+        for word in list(words):
+            wtree = pyshlex.make_wordtree(word[1])
+            for part in wtree:
+                if not isinstance(part, list):
+                    continue
+
+                if part[0] in ('`', '$('):
+                    command = pyshlex.wordtree_as_string(part[1:-1])
+                    self._parse_shell(command)
+
+                    if word[0] in ("cmd_name", "cmd_word"):
+                        if word in words:
+                            words.remove(word)
+
+        usetoken = False
+        for word in words:
+            if word[0] in ("cmd_name", "cmd_word") or \
+               (usetoken and word[0] == "TOKEN"):
+                if "=" in word[1]:
+                    usetoken = True
+                    continue
+
+                cmd = word[1]
+                if cmd.startswith("$"):
+                    self.log.debug(1, self.unhandled_template % cmd)
+                elif cmd == "eval":
+                    command = " ".join(word for _, word in words[1:])
+                    self._parse_shell(command)
+                else:
+                    self.allexecs.add(cmd)
+                break

bitbake/lib/bb/command.py

@@ -0,0 +1,765 @@
+"""
+BitBake 'Command' module
+
+Provide an interface to interact with the bitbake server through 'commands'
+"""
+
+# Copyright (C) 2006-2007  Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+The bitbake server takes 'commands' from its UI/commandline.
+Commands are either synchronous or asynchronous.
+Async commands return data to the client in the form of events.
+Sync commands must only return data through the function return value
+and must not trigger events, directly or indirectly.
+Commands are queued in a CommandQueue
+"""
+
+from collections import OrderedDict, defaultdict
+
+import bb.event
+import bb.cooker
+import bb.remotedata
+
+class DataStoreConnectionHandle(object):
+    def __init__(self, dsindex=0):
+        self.dsindex = dsindex
+
+class CommandCompleted(bb.event.Event):
+    pass
+
+class CommandExit(bb.event.Event):
+    def  __init__(self, exitcode):
+        bb.event.Event.__init__(self)
+        self.exitcode = int(exitcode)
+
+class CommandFailed(CommandExit):
+    def __init__(self, message):
+        self.error = message
+        CommandExit.__init__(self, 1)
+    def __str__(self):
+        return "Command execution failed: %s" % self.error
+
+class CommandError(Exception):
+    pass
+
+class Command:
+    """
+    A queue of asynchronous commands for bitbake
+    """
+    def __init__(self, cooker):
+        self.cooker = cooker
+        self.cmds_sync = CommandsSync()
+        self.cmds_async = CommandsAsync()
+        self.remotedatastores = bb.remotedata.RemoteDatastores(cooker)
+
+        # FIXME Add lock for this
+        self.currentAsyncCommand = None
+
+    def runCommand(self, commandline, ro_only = False):
+        command = commandline.pop(0)
+        if hasattr(CommandsSync, command):
+            # Can run synchronous commands straight away
+            command_method = getattr(self.cmds_sync, command)
+            if ro_only:
+                if not hasattr(command_method, 'readonly') or False == getattr(command_method, 'readonly'):
+                    return None, "Not able to execute not readonly commands in readonly mode"
+            try:
+                self.cooker.process_inotify_updates()
+                if getattr(command_method, 'needconfig', True):
+                    self.cooker.updateCacheSync()
+                result = command_method(self, commandline)
+            except CommandError as exc:
+                return None, exc.args[0]
+            except (Exception, SystemExit):
+                import traceback
+                return None, traceback.format_exc()
+            else:
+                return result, None
+        if self.currentAsyncCommand is not None:
+            return None, "Busy (%s in progress)" % self.currentAsyncCommand[0]
+        if command not in CommandsAsync.__dict__:
+            return None, "No such command"
+        self.currentAsyncCommand = (command, commandline)
+        self.cooker.configuration.server_register_idlecallback(self.cooker.runCommands, self.cooker)
+        return True, None
+
+    def runAsyncCommand(self):
+        try:
+            self.cooker.process_inotify_updates()
+            if self.cooker.state in (bb.cooker.state.error, bb.cooker.state.shutdown, bb.cooker.state.forceshutdown):
+                # updateCache will trigger a shutdown of the parser
+                # and then raise BBHandledException triggering an exit
+                self.cooker.updateCache()
+                return False
+            if self.currentAsyncCommand is not None:
+                (command, options) = self.currentAsyncCommand
+                commandmethod = getattr(CommandsAsync, command)
+                needcache = getattr( commandmethod, "needcache" )
+                if needcache and self.cooker.state != bb.cooker.state.running:
+                    self.cooker.updateCache()
+                    return True
+                else:
+                    commandmethod(self.cmds_async, self, options)
+                    return False
+            else:
+                return False
+        except KeyboardInterrupt as exc:
+            self.finishAsyncCommand("Interrupted")
+            return False
+        except SystemExit as exc:
+            arg = exc.args[0]
+            if isinstance(arg, str):
+                self.finishAsyncCommand(arg)
+            else:
+                self.finishAsyncCommand("Exited with %s" % arg)
+            return False
+        except Exception as exc:
+            import traceback
+            if isinstance(exc, bb.BBHandledException):
+                self.finishAsyncCommand("")
+            else:
+                self.finishAsyncCommand(traceback.format_exc())
+            return False
+
+    def finishAsyncCommand(self, msg=None, code=None):
+        if msg or msg == "":
+            bb.event.fire(CommandFailed(msg), self.cooker.data)
+        elif code:
+            bb.event.fire(CommandExit(code), self.cooker.data)
+        else:
+            bb.event.fire(CommandCompleted(), self.cooker.data)
+        self.currentAsyncCommand = None
+        self.cooker.finishcommand()
+
+    def reset(self):
+        self.remotedatastores = bb.remotedata.RemoteDatastores(self.cooker)
+
+def split_mc_pn(pn):
+    if pn.startswith("multiconfig:"):
+        _, mc, pn = pn.split(":", 2)
+        return (mc, pn)
+    return ('', pn)
+
+class CommandsSync:
+    """
+    A class of synchronous commands
+    These should run quickly so as not to hurt interactive performance.
+    These must not influence any running synchronous command.
+    """
+
+    def stateShutdown(self, command, params):
+        """
+        Trigger cooker 'shutdown' mode
+        """
+        command.cooker.shutdown(False)
+
+    def stateForceShutdown(self, command, params):
+        """
+        Stop the cooker
+        """
+        command.cooker.shutdown(True)
+
+    def getAllKeysWithFlags(self, command, params):
+        """
+        Returns a dump of the global state. Call with
+        variable flags to be retrieved as params.
+        """
+        flaglist = params[0]
+        return command.cooker.getAllKeysWithFlags(flaglist)
+    getAllKeysWithFlags.readonly = True
+
+    def getVariable(self, command, params):
+        """
+        Read the value of a variable from data
+        """
+        varname = params[0]
+        expand = True
+        if len(params) > 1:
+            expand = (params[1] == "True")
+
+        return command.cooker.data.getVar(varname, expand)
+    getVariable.readonly = True
+
+    def setVariable(self, command, params):
+        """
+        Set the value of variable in data
+        """
+        varname = params[0]
+        value = str(params[1])
+        command.cooker.extraconfigdata[varname] = value
+        command.cooker.data.setVar(varname, value)
+
+    def getSetVariable(self, command, params):
+        """
+        Read the value of a variable from data and set it into the datastore
+        which effectively expands and locks the value.
+        """
+        varname = params[0]
+        result = self.getVariable(command, params)
+        command.cooker.data.setVar(varname, result)
+        return result
+
+    def setConfig(self, command, params):
+        """
+        Set the value of variable in configuration
+        """
+        varname = params[0]
+        value = str(params[1])
+        setattr(command.cooker.configuration, varname, value)
+
+    def enableDataTracking(self, command, params):
+        """
+        Enable history tracking for variables
+        """
+        command.cooker.enableDataTracking()
+
+    def disableDataTracking(self, command, params):
+        """
+        Disable history tracking for variables
+        """
+        command.cooker.disableDataTracking()
+
+    def setPrePostConfFiles(self, command, params):
+        prefiles = params[0].split()
+        postfiles = params[1].split()
+        command.cooker.configuration.prefile = prefiles
+        command.cooker.configuration.postfile = postfiles
+    setPrePostConfFiles.needconfig = False
+
+    def matchFile(self, command, params):
+        fMatch = params[0]
+        return command.cooker.matchFile(fMatch)
+    matchFile.needconfig = False
+
+    def getUIHandlerNum(self, command, params):
+        return bb.event.get_uihandler()
+    getUIHandlerNum.needconfig = False
+    getUIHandlerNum.readonly = True
+
+    def setEventMask(self, command, params):
+        handlerNum = params[0]
+        llevel = params[1]
+        debug_domains = params[2]
+        mask = params[3]
+        return bb.event.set_UIHmask(handlerNum, llevel, debug_domains, mask)
+    setEventMask.needconfig = False
+    setEventMask.readonly = True
+
+    def setFeatures(self, command, params):
+        """
+        Set the cooker features to include the passed list of features
+        """
+        features = params[0]
+        command.cooker.setFeatures(features)
+    setFeatures.needconfig = False
+    # although we change the internal state of the cooker, this is transparent since
+    # we always take and leave the cooker in state.initial
+    setFeatures.readonly = True
+
+    def updateConfig(self, command, params):
+        options = params[0]
+        environment = params[1]
+        cmdline = params[2]
+        command.cooker.updateConfigOpts(options, environment, cmdline)
+    updateConfig.needconfig = False
+
+    def parseConfiguration(self, command, params):
+        """Instruct bitbake to parse its configuration
+        NOTE: it is only necessary to call this if you aren't calling any normal action
+        (otherwise parsing is taken care of automatically)
+        """
+        command.cooker.parseConfiguration()
+    parseConfiguration.needconfig = False
+
+    def getLayerPriorities(self, command, params):
+        command.cooker.parseConfiguration()
+        ret = []
+        # regex objects cannot be marshalled by xmlrpc
+        for collection, pattern, regex, pri in command.cooker.bbfile_config_priorities:
+            ret.append((collection, pattern, regex.pattern, pri))
+        return ret
+    getLayerPriorities.readonly = True
+
+    def getRecipes(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return list(command.cooker.recipecaches[mc].pkg_pn.items())
+    getRecipes.readonly = True
+
+    def getRecipeDepends(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return list(command.cooker.recipecaches[mc].deps.items())
+    getRecipeDepends.readonly = True
+
+    def getRecipeVersions(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].pkg_pepvpr
+    getRecipeVersions.readonly = True
+
+    def getRecipeProvides(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].fn_provides
+    getRecipeProvides.readonly = True
+
+    def getRecipePackages(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].packages
+    getRecipePackages.readonly = True
+
+    def getRecipePackagesDynamic(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].packages_dynamic
+    getRecipePackagesDynamic.readonly = True
+
+    def getRProviders(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].rproviders
+    getRProviders.readonly = True
+
+    def getRuntimeDepends(self, command, params):
+        ret = []
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        rundeps = command.cooker.recipecaches[mc].rundeps
+        for key, value in rundeps.items():
+            if isinstance(value, defaultdict):
+                value = dict(value)
+            ret.append((key, value))
+        return ret
+    getRuntimeDepends.readonly = True
+
+    def getRuntimeRecommends(self, command, params):
+        ret = []
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        runrecs = command.cooker.recipecaches[mc].runrecs
+        for key, value in runrecs.items():
+            if isinstance(value, defaultdict):
+                value = dict(value)
+            ret.append((key, value))
+        return ret
+    getRuntimeRecommends.readonly = True
+
+    def getRecipeInherits(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].inherits
+    getRecipeInherits.readonly = True
+
+    def getBbFilePriority(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].bbfile_priority
+    getBbFilePriority.readonly = True
+
+    def getDefaultPreference(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return command.cooker.recipecaches[mc].pkg_dp
+    getDefaultPreference.readonly = True
+
+    def getSkippedRecipes(self, command, params):
+        # Return list sorted by reverse priority order
+        import bb.cache
+        skipdict = OrderedDict(sorted(command.cooker.skiplist.items(),
+                                      key=lambda x: (-command.cooker.collection.calc_bbfile_priority(bb.cache.virtualfn2realfn(x[0])[0]), x[0])))
+        return list(skipdict.items())
+    getSkippedRecipes.readonly = True
+
+    def getOverlayedRecipes(self, command, params):
+        return list(command.cooker.collection.overlayed.items())
+    getOverlayedRecipes.readonly = True
+
+    def getFileAppends(self, command, params):
+        fn = params[0]
+        return command.cooker.collection.get_file_appends(fn)
+    getFileAppends.readonly = True
+
+    def getAllAppends(self, command, params):
+        return command.cooker.collection.bbappends
+    getAllAppends.readonly = True
+
+    def findProviders(self, command, params):
+        return command.cooker.findProviders()
+    findProviders.readonly = True
+
+    def findBestProvider(self, command, params):
+        (mc, pn) = split_mc_pn(params[0])
+        return command.cooker.findBestProvider(pn, mc)
+    findBestProvider.readonly = True
+
+    def allProviders(self, command, params):
+        try:
+            mc = params[0]
+        except IndexError:
+            mc = ''
+        return list(bb.providers.allProviders(command.cooker.recipecaches[mc]).items())
+    allProviders.readonly = True
+
+    def getRuntimeProviders(self, command, params):
+        rprovide = params[0]
+        try:
+            mc = params[1]
+        except IndexError:
+            mc = ''
+        all_p = bb.providers.getRuntimeProviders(command.cooker.recipecaches[mc], rprovide)
+        if all_p:
+            best = bb.providers.filterProvidersRunTime(all_p, rprovide,
+                            command.cooker.data,
+                            command.cooker.recipecaches[mc])[0][0]
+        else:
+            best = None
+        return all_p, best
+    getRuntimeProviders.readonly = True
+
+    def dataStoreConnectorFindVar(self, command, params):
+        dsindex = params[0]
+        name = params[1]
+        datastore = command.remotedatastores[dsindex]
+        value, overridedata = datastore._findVar(name)
+
+        if value:
+            content = value.get('_content', None)
+            if isinstance(content, bb.data_smart.DataSmart):
+                # Value is a datastore (e.g. BB_ORIGENV) - need to handle this carefully
+                idx = command.remotedatastores.check_store(content, True)
+                return {'_content': DataStoreConnectionHandle(idx),
+                        '_connector_origtype': 'DataStoreConnectionHandle',
+                        '_connector_overrides': overridedata}
+            elif isinstance(content, set):
+                return {'_content': list(content),
+                        '_connector_origtype': 'set',
+                        '_connector_overrides': overridedata}
+            else:
+                value['_connector_overrides'] = overridedata
+        else:
+            value = {}
+            value['_connector_overrides'] = overridedata
+        return value
+    dataStoreConnectorFindVar.readonly = True
+
+    def dataStoreConnectorGetKeys(self, command, params):
+        dsindex = params[0]
+        datastore = command.remotedatastores[dsindex]
+        return list(datastore.keys())
+    dataStoreConnectorGetKeys.readonly = True
+
+    def dataStoreConnectorGetVarHistory(self, command, params):
+        dsindex = params[0]
+        name = params[1]
+        datastore = command.remotedatastores[dsindex]
+        return datastore.varhistory.variable(name)
+    dataStoreConnectorGetVarHistory.readonly = True
+
+    def dataStoreConnectorExpandPythonRef(self, command, params):
+        config_data_dict = params[0]
+        varname = params[1]
+        expr = params[2]
+
+        config_data = command.remotedatastores.receive_datastore(config_data_dict)
+
+        varparse = bb.data_smart.VariableParse(varname, config_data)
+        return varparse.python_sub(expr)
+
+    def dataStoreConnectorRelease(self, command, params):
+        dsindex = params[0]
+        if dsindex <= 0:
+            raise CommandError('dataStoreConnectorRelease: invalid index %d' % dsindex)
+        command.remotedatastores.release(dsindex)
+
+    def dataStoreConnectorSetVarFlag(self, command, params):
+        dsindex = params[0]
+        name = params[1]
+        flag = params[2]
+        value = params[3]
+        datastore = command.remotedatastores[dsindex]
+        datastore.setVarFlag(name, flag, value)
+
+    def dataStoreConnectorDelVar(self, command, params):
+        dsindex = params[0]
+        name = params[1]
+        datastore = command.remotedatastores[dsindex]
+        if len(params) > 2:
+            flag = params[2]
+            datastore.delVarFlag(name, flag)
+        else:
+            datastore.delVar(name)
+
+    def dataStoreConnectorRenameVar(self, command, params):
+        dsindex = params[0]
+        name = params[1]
+        newname = params[2]
+        datastore = command.remotedatastores[dsindex]
+        datastore.renameVar(name, newname)
+
+    def parseRecipeFile(self, command, params):
+        """
+        Parse the specified recipe file (with or without bbappends)
+        and return a datastore object representing the environment
+        for the recipe.
+        """
+        fn = params[0]
+        appends = params[1]
+        appendlist = params[2]
+        if len(params) > 3:
+            config_data_dict = params[3]
+            config_data = command.remotedatastores.receive_datastore(config_data_dict)
+        else:
+            config_data = None
+
+        if appends:
+            if appendlist is not None:
+                appendfiles = appendlist
+            else:
+                appendfiles = command.cooker.collection.get_file_appends(fn)
+        else:
+            appendfiles = []
+        # We are calling bb.cache locally here rather than on the server,
+        # but that's OK because it doesn't actually need anything from
+        # the server barring the global datastore (which we have a remote
+        # version of)
+        if config_data:
+            # We have to use a different function here if we're passing in a datastore
+            # NOTE: we took a copy above, so we don't do it here again
+            envdata = bb.cache.parse_recipe(config_data, fn, appendfiles)['']
+        else:
+            # Use the standard path
+            parser = bb.cache.NoCache(command.cooker.databuilder)
+            envdata = parser.loadDataFull(fn, appendfiles)
+        idx = command.remotedatastores.store(envdata)
+        return DataStoreConnectionHandle(idx)
+    parseRecipeFile.readonly = True
+
+class CommandsAsync:
+    """
+    A class of asynchronous commands
+    These functions communicate via generated events.
+    Any function that requires metadata parsing should be here.
+    """
+
+    def buildFile(self, command, params):
+        """
+        Build a single specified .bb file
+        """
+        bfile = params[0]
+        task = params[1]
+        if len(params) > 2:
+            internal = params[2]
+        else:
+            internal = False
+
+        if internal:
+            command.cooker.buildFileInternal(bfile, task, fireevents=False, quietlog=True)
+        else:
+            command.cooker.buildFile(bfile, task)
+    buildFile.needcache = False
+
+    def buildTargets(self, command, params):
+        """
+        Build a set of targets
+        """
+        pkgs_to_build = params[0]
+        task = params[1]
+
+        command.cooker.buildTargets(pkgs_to_build, task)
+    buildTargets.needcache = True
+
+    def generateDepTreeEvent(self, command, params):
+        """
+        Generate an event containing the dependency information
+        """
+        pkgs_to_build = params[0]
+        task = params[1]
+
+        command.cooker.generateDepTreeEvent(pkgs_to_build, task)
+        command.finishAsyncCommand()
+    generateDepTreeEvent.needcache = True
+
+    def generateDotGraph(self, command, params):
+        """
+        Dump dependency information to disk as .dot files
+        """
+        pkgs_to_build = params[0]
+        task = params[1]
+
+        command.cooker.generateDotGraphFiles(pkgs_to_build, task)
+        command.finishAsyncCommand()
+    generateDotGraph.needcache = True
+
+    def generateTargetsTree(self, command, params):
+        """
+        Generate a tree of buildable targets.
+        If klass is provided ensure all recipes that inherit the class are
+        included in the package list.
+        If pkg_list provided use that list (plus any extras brought in by
+        klass) rather than generating a tree for all packages.
+        """
+        klass = params[0]
+        pkg_list = params[1]
+
+        command.cooker.generateTargetsTree(klass, pkg_list)
+        command.finishAsyncCommand()
+    generateTargetsTree.needcache = True
+
+    def findConfigFiles(self, command, params):
+        """
+        Find config files which provide appropriate values
+        for the passed configuration variable. i.e. MACHINE
+        """
+        varname = params[0]
+
+        command.cooker.findConfigFiles(varname)
+        command.finishAsyncCommand()
+    findConfigFiles.needcache = False
+
+    def findFilesMatchingInDir(self, command, params):
+        """
+        Find implementation files matching the specified pattern
+        in the requested subdirectory of a BBPATH
+        """
+        pattern = params[0]
+        directory = params[1]
+
+        command.cooker.findFilesMatchingInDir(pattern, directory)
+        command.finishAsyncCommand()
+    findFilesMatchingInDir.needcache = False
+
+    def findConfigFilePath(self, command, params):
+        """
+        Find the path of the requested configuration file
+        """
+        configfile = params[0]
+
+        command.cooker.findConfigFilePath(configfile)
+        command.finishAsyncCommand()
+    findConfigFilePath.needcache = False
+
+    def showVersions(self, command, params):
+        """
+        Show the currently selected versions
+        """
+        command.cooker.showVersions()
+        command.finishAsyncCommand()
+    showVersions.needcache = True
+
+    def showEnvironmentTarget(self, command, params):
+        """
+        Print the environment of a target recipe
+        (needs the cache to work out which recipe to use)
+        """
+        pkg = params[0]
+
+        command.cooker.showEnvironment(None, pkg)
+        command.finishAsyncCommand()
+    showEnvironmentTarget.needcache = True
+
+    def showEnvironment(self, command, params):
+        """
+        Print the standard environment
+        or if specified the environment for a specified recipe
+        """
+        bfile = params[0]
+
+        command.cooker.showEnvironment(bfile)
+        command.finishAsyncCommand()
+    showEnvironment.needcache = False
+
+    def parseFiles(self, command, params):
+        """
+        Parse the .bb files
+        """
+        command.cooker.updateCache()
+        command.finishAsyncCommand()
+    parseFiles.needcache = True
+
+    def compareRevisions(self, command, params):
+        """
+        Parse the .bb files
+        """
+        if bb.fetch.fetcher_compare_revisions(command.cooker.data):
+            command.finishAsyncCommand(code=1)
+        else:
+            command.finishAsyncCommand()
+    compareRevisions.needcache = True
+
+    def triggerEvent(self, command, params):
+        """
+        Trigger a certain event
+        """
+        event = params[0]
+        bb.event.fire(eval(event), command.cooker.data)
+        command.currentAsyncCommand = None
+    triggerEvent.needcache = False
+
+    def resetCooker(self, command, params):
+        """
+        Reset the cooker to its initial state, thus forcing a reparse for
+        any async command that has the needcache property set to True
+        """
+        command.cooker.reset()
+        command.finishAsyncCommand()
+    resetCooker.needcache = False
+
+    def clientComplete(self, command, params):
+        """
+        Do the right thing when the controlling client exits
+        """
+        command.cooker.clientComplete()
+        command.finishAsyncCommand()
+    clientComplete.needcache = False
+
+    def findSigInfo(self, command, params):
+        """
+        Find signature info files via the signature generator
+        """
+        pn = params[0]
+        taskname = params[1]
+        sigs = params[2]
+        res = bb.siggen.find_siginfo(pn, taskname, sigs, command.cooker.data)
+        bb.event.fire(bb.event.FindSigInfoResult(res), command.cooker.data)
+        command.finishAsyncCommand()
+    findSigInfo.needcache = False

bitbake/lib/bb/compat.py

@@ -0,0 +1,6 @@
+"""Code pulled from future python versions, here for compatibility"""
+
+from collections import MutableMapping, KeysView, ValuesView, ItemsView, OrderedDict
+from functools import total_ordering
+
+

bitbake/lib/bb/cookerdata.py

@@ -0,0 +1,431 @@
+#!/usr/bin/env python
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2003, 2004  Phil Blundell
+# Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
+# Copyright (C) 2005        Holger Hans Peter Freyther
+# Copyright (C) 2005        ROAD GmbH
+# Copyright (C) 2006        Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import logging
+import os
+import re
+import sys
+from functools import wraps
+import bb
+from bb import data
+import bb.parse
+
+logger      = logging.getLogger("BitBake")
+parselog    = logging.getLogger("BitBake.Parsing")
+
+class ConfigParameters(object):
+    def __init__(self, argv=sys.argv):
+        self.options, targets = self.parseCommandLine(argv)
+        self.environment = self.parseEnvironment()
+
+        self.options.pkgs_to_build = targets or []
+
+        for key, val in self.options.__dict__.items():
+            setattr(self, key, val)
+
+    def parseCommandLine(self, argv=sys.argv):
+        raise Exception("Caller must implement commandline option parsing")
+
+    def parseEnvironment(self):
+        return os.environ.copy()
+
+    def updateFromServer(self, server):
+        if not self.options.cmd:
+            defaulttask, error = server.runCommand(["getVariable", "BB_DEFAULT_TASK"])
+            if error:
+                raise Exception("Unable to get the value of BB_DEFAULT_TASK from the server: %s" % error)
+            self.options.cmd = defaulttask or "build"
+        _, error = server.runCommand(["setConfig", "cmd", self.options.cmd])
+        if error:
+            raise Exception("Unable to set configuration option 'cmd' on the server: %s" % error)
+
+        if not self.options.pkgs_to_build:
+            bbpkgs, error = server.runCommand(["getVariable", "BBTARGETS"])
+            if error:
+                raise Exception("Unable to get the value of BBTARGETS from the server: %s" % error)
+            if bbpkgs:
+                self.options.pkgs_to_build.extend(bbpkgs.split())
+
+    def updateToServer(self, server, environment):
+        options = {}
+        for o in ["abort", "force", "invalidate_stamp",
+                  "verbose", "debug", "dry_run", "dump_signatures",
+                  "debug_domains", "extra_assume_provided", "profile",
+                  "prefile", "postfile", "server_timeout"]:
+            options[o] = getattr(self.options, o)
+
+        ret, error = server.runCommand(["updateConfig", options, environment, sys.argv])
+        if error:
+            raise Exception("Unable to update the server configuration with local parameters: %s" % error)
+
+    def parseActions(self):
+        # Parse any commandline into actions
+        action = {'action':None, 'msg':None}
+        if self.options.show_environment:
+            if 'world' in self.options.pkgs_to_build:
+                action['msg'] = "'world' is not a valid target for --environment."
+            elif 'universe' in self.options.pkgs_to_build:
+                action['msg'] = "'universe' is not a valid target for --environment."
+            elif len(self.options.pkgs_to_build) > 1:
+                action['msg'] = "Only one target can be used with the --environment option."
+            elif self.options.buildfile and len(self.options.pkgs_to_build) > 0:
+                action['msg'] = "No target should be used with the --environment and --buildfile options."
+            elif len(self.options.pkgs_to_build) > 0:
+                action['action'] = ["showEnvironmentTarget", self.options.pkgs_to_build]
+            else:
+                action['action'] = ["showEnvironment", self.options.buildfile]
+        elif self.options.buildfile is not None:
+            action['action'] = ["buildFile", self.options.buildfile, self.options.cmd]
+        elif self.options.revisions_changed:
+            action['action'] = ["compareRevisions"]
+        elif self.options.show_versions:
+            action['action'] = ["showVersions"]
+        elif self.options.parse_only:
+            action['action'] = ["parseFiles"]
+        elif self.options.dot_graph:
+            if self.options.pkgs_to_build:
+                action['action'] = ["generateDotGraph", self.options.pkgs_to_build, self.options.cmd]
+            else:
+                action['msg'] = "Please specify a package name for dependency graph generation."
+        else:
+            if self.options.pkgs_to_build:
+                action['action'] = ["buildTargets", self.options.pkgs_to_build, self.options.cmd]
+            else:
+                #action['msg'] = "Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information."
+                action = None
+        self.options.initialaction = action
+        return action
+
+class CookerConfiguration(object):
+    """
+    Manages build options and configurations for one run
+    """
+
+    def __init__(self):
+        self.debug_domains = []
+        self.extra_assume_provided = []
+        self.prefile = []
+        self.postfile = []
+        self.debug = 0
+        self.cmd = None
+        self.abort = True
+        self.force = False
+        self.profile = False
+        self.nosetscene = False
+        self.setsceneonly = False
+        self.invalidate_stamp = False
+        self.dump_signatures = []
+        self.dry_run = False
+        self.tracking = False
+        self.xmlrpcinterface = []
+        self.server_timeout = None
+        self.writeeventlog = False
+        self.server_only = False
+        self.limited_deps = False
+        self.runall = None
+
+        self.env = {}
+
+    def setConfigParameters(self, parameters):
+        for key in self.__dict__.keys():
+            if key in parameters.options.__dict__:
+                setattr(self, key, parameters.options.__dict__[key])
+        self.env = parameters.environment.copy()
+
+    def setServerRegIdleCallback(self, srcb):
+        self.server_register_idlecallback = srcb
+
+    def __getstate__(self):
+        state = {}
+        for key in self.__dict__.keys():
+            if key == "server_register_idlecallback":
+                state[key] = None
+            else:
+                state[key] = getattr(self, key)
+        return state
+
+    def __setstate__(self,state):
+        for k in state:
+            setattr(self, k, state[k])
+
+
+def catch_parse_error(func):
+    """Exception handling bits for our parsing"""
+    @wraps(func)
+    def wrapped(fn, *args):
+        try:
+            return func(fn, *args)
+        except IOError as exc:
+            import traceback
+            parselog.critical(traceback.format_exc())
+            parselog.critical("Unable to parse %s: %s" % (fn, exc))
+            sys.exit(1)
+        except bb.data_smart.ExpansionError as exc:
+            import traceback
+
+            bbdir = os.path.dirname(__file__) + os.sep
+            exc_class, exc, tb = sys.exc_info()
+            for tb in iter(lambda: tb.tb_next, None):
+                # Skip frames in bitbake itself, we only want the metadata
+                fn, _, _, _ = traceback.extract_tb(tb, 1)[0]
+                if not fn.startswith(bbdir):
+                    break
+            parselog.critical("Unable to parse %s" % fn, exc_info=(exc_class, exc, tb))
+            sys.exit(1)
+        except bb.parse.ParseError as exc:
+            parselog.critical(str(exc))
+            sys.exit(1)
+    return wrapped
+
+@catch_parse_error
+def parse_config_file(fn, data, include=True):
+    return bb.parse.handle(fn, data, include)
+
+@catch_parse_error
+def _inherit(bbclass, data):
+    bb.parse.BBHandler.inherit(bbclass, "configuration INHERITs", 0, data)
+    return data
+
+def findConfigFile(configfile, data):
+    search = []
+    bbpath = data.getVar("BBPATH")
+    if bbpath:
+        for i in bbpath.split(":"):
+            search.append(os.path.join(i, "conf", configfile))
+    path = os.getcwd()
+    while path != "/":
+        search.append(os.path.join(path, "conf", configfile))
+        path, _ = os.path.split(path)
+
+    for i in search:
+        if os.path.exists(i):
+            return i
+
+    return None
+
+#
+# We search for a conf/bblayers.conf under an entry in BBPATH or in cwd working 
+# up to /. If that fails, we search for a conf/bitbake.conf in BBPATH.
+#
+
+def findTopdir():
+    d = bb.data.init()
+    bbpath = None
+    if 'BBPATH' in os.environ:
+        bbpath = os.environ['BBPATH']
+        d.setVar('BBPATH', bbpath)
+
+    layerconf = findConfigFile("bblayers.conf", d)
+    if layerconf:
+        return os.path.dirname(os.path.dirname(layerconf))
+    if bbpath:
+        bitbakeconf = bb.utils.which(bbpath, "conf/bitbake.conf")
+        if bitbakeconf:
+            return os.path.dirname(os.path.dirname(bitbakeconf))
+    return None
+
+class CookerDataBuilder(object):
+
+    def __init__(self, cookercfg, worker = False):
+
+        self.prefiles = cookercfg.prefile
+        self.postfiles = cookercfg.postfile
+        self.tracking = cookercfg.tracking
+
+        bb.utils.set_context(bb.utils.clean_context())
+        bb.event.set_class_handlers(bb.event.clean_class_handlers())
+        self.basedata = bb.data.init()
+        if self.tracking:
+            self.basedata.enableTracking()
+
+        # Keep a datastore of the initial environment variables and their
+        # values from when BitBake was launched to enable child processes
+        # to use environment variables which have been cleaned from the
+        # BitBake processes env
+        self.savedenv = bb.data.init()
+        for k in cookercfg.env:
+            self.savedenv.setVar(k, cookercfg.env[k])
+
+        filtered_keys = bb.utils.approved_variables()
+        bb.data.inheritFromOS(self.basedata, self.savedenv, filtered_keys)
+        self.basedata.setVar("BB_ORIGENV", self.savedenv)
+
+        if worker:
+            self.basedata.setVar("BB_WORKERCONTEXT", "1")
+
+        self.data = self.basedata
+        self.mcdata = {}
+
+    def parseBaseConfiguration(self):
+        try:
+            bb.parse.init_parser(self.basedata)
+            self.data = self.parseConfigurationFiles(self.prefiles, self.postfiles)
+
+            if self.data.getVar("BB_WORKERCONTEXT", False) is None:
+                bb.fetch.fetcher_init(self.data)
+            bb.codeparser.parser_cache_init(self.data)
+
+            bb.event.fire(bb.event.ConfigParsed(), self.data)
+
+            reparse_cnt = 0
+            while self.data.getVar("BB_INVALIDCONF", False) is True:
+                if reparse_cnt > 20:
+                    logger.error("Configuration has been re-parsed over 20 times, "
+                                 "breaking out of the loop...")
+                    raise Exception("Too deep config re-parse loop. Check locations where "
+                                    "BB_INVALIDCONF is being set (ConfigParsed event handlers)")
+                self.data.setVar("BB_INVALIDCONF", False)
+                self.data = self.parseConfigurationFiles(self.prefiles, self.postfiles)
+                reparse_cnt += 1
+                bb.event.fire(bb.event.ConfigParsed(), self.data)
+
+            bb.parse.init_parser(self.data)
+            self.data_hash = self.data.get_hash()
+            self.mcdata[''] = self.data
+
+            multiconfig = (self.data.getVar("BBMULTICONFIG") or "").split()
+            for config in multiconfig:
+                mcdata = self.parseConfigurationFiles(self.prefiles, self.postfiles, config)
+                bb.event.fire(bb.event.ConfigParsed(), mcdata)
+                self.mcdata[config] = mcdata
+            if multiconfig:
+                bb.event.fire(bb.event.MultiConfigParsed(self.mcdata), self.data)
+
+        except (SyntaxError, bb.BBHandledException):
+            raise bb.BBHandledException
+        except bb.data_smart.ExpansionError as e:
+            logger.error(str(e))
+            raise bb.BBHandledException
+        except Exception:
+            logger.exception("Error parsing configuration files")
+            raise bb.BBHandledException
+
+        # Create a copy so we can reset at a later date when UIs disconnect
+        self.origdata = self.data
+        self.data = bb.data.createCopy(self.origdata)
+        self.mcdata[''] = self.data
+
+    def reset(self):
+        # We may not have run parseBaseConfiguration() yet
+        if not hasattr(self, 'origdata'):
+            return
+        self.data = bb.data.createCopy(self.origdata)
+        self.mcdata[''] = self.data
+
+    def _findLayerConf(self, data):
+        return findConfigFile("bblayers.conf", data)
+
+    def parseConfigurationFiles(self, prefiles, postfiles, mc = "default"):
+        data = bb.data.createCopy(self.basedata)
+        data.setVar("BB_CURRENT_MC", mc)
+
+        # Parse files for loading *before* bitbake.conf and any includes
+        for f in prefiles:
+            data = parse_config_file(f, data)
+
+        layerconf = self._findLayerConf(data)
+        if layerconf:
+            parselog.debug(2, "Found bblayers.conf (%s)", layerconf)
+            # By definition bblayers.conf is in conf/ of TOPDIR.
+            # We may have been called with cwd somewhere else so reset TOPDIR
+            data.setVar("TOPDIR", os.path.dirname(os.path.dirname(layerconf)))
+            data = parse_config_file(layerconf, data)
+
+            layers = (data.getVar('BBLAYERS') or "").split()
+
+            data = bb.data.createCopy(data)
+            approved = bb.utils.approved_variables()
+            for layer in layers:
+                if not os.path.isdir(layer):
+                    parselog.critical("Layer directory '%s' does not exist! "
+                                      "Please check BBLAYERS in %s" % (layer, layerconf))
+                    sys.exit(1)
+                parselog.debug(2, "Adding layer %s", layer)
+                if 'HOME' in approved and '~' in layer:
+                    layer = os.path.expanduser(layer)
+                if layer.endswith('/'):
+                    layer = layer.rstrip('/')
+                data.setVar('LAYERDIR', layer)
+                data.setVar('LAYERDIR_RE', re.escape(layer))
+                data = parse_config_file(os.path.join(layer, "conf", "layer.conf"), data)
+                data.expandVarref('LAYERDIR')
+                data.expandVarref('LAYERDIR_RE')
+
+            data.delVar('LAYERDIR_RE')
+            data.delVar('LAYERDIR')
+
+            bbfiles_dynamic = (data.getVar('BBFILES_DYNAMIC') or "").split()
+            collections = (data.getVar('BBFILE_COLLECTIONS') or "").split()
+            invalid = []
+            for entry in bbfiles_dynamic:
+                parts = entry.split(":", 1)
+                if len(parts) != 2:
+                    invalid.append(entry)
+                    continue
+                l, f = parts
+                if l in collections:
+                    data.appendVar("BBFILES", " " + f)
+            if invalid:
+                bb.fatal("BBFILES_DYNAMIC entries must be of the form <collection name>:<filename pattern>, not:\n    %s" % "\n    ".join(invalid))
+
+            layerseries = set((data.getVar("LAYERSERIES_CORENAMES") or "").split())
+            for c in collections:
+                compat = set((data.getVar("LAYERSERIES_COMPAT_%s" % c) or "").split())
+                if compat and not (compat & layerseries):
+                    bb.fatal("Layer %s is not compatible with the core layer which only supports these series: %s (layer is compatible with %s)"
+                              % (c, " ".join(layerseries), " ".join(compat)))
+
+        if not data.getVar("BBPATH"):
+            msg = "The BBPATH variable is not set"
+            if not layerconf:
+                msg += (" and bitbake did not find a conf/bblayers.conf file in"
+                        " the expected location.\nMaybe you accidentally"
+                        " invoked bitbake from the wrong directory?")
+            raise SystemExit(msg)
+
+        data = parse_config_file(os.path.join("conf", "bitbake.conf"), data)
+
+        # Parse files for loading *after* bitbake.conf and any includes
+        for p in postfiles:
+            data = parse_config_file(p, data)
+
+        # Handle any INHERITs and inherit the base class
+        bbclasses  = ["base"] + (data.getVar('INHERIT') or "").split()
+        for bbclass in bbclasses:
+            data = _inherit(bbclass, data)
+
+        # Nomally we only register event handlers at the end of parsing .bb files
+        # We register any handlers we've found so far here...
+        for var in data.getVar('__BBHANDLERS', False) or []:
+            handlerfn = data.getVarFlag(var, "filename", False)
+            if not handlerfn:
+                parselog.critical("Undefined event handler function '%s'" % var)
+                sys.exit(1)
+            handlerln = int(data.getVarFlag(var, "lineno", False))
+            bb.event.register(var, data.getVar(var, False),  (data.getVarFlag(var, "eventmask") or "").split(), handlerfn, handlerln)
+
+        data.setVar('BBINCLUDED',bb.parse.get_file_depends(data))
+
+        return data
+

bitbake/lib/bb/daemonize.py

@@ -0,0 +1,82 @@
+"""
+Python Daemonizing helper
+
+Originally based on code Copyright (C) 2005 Chad J. Schroeder but now heavily modified
+to allow a function to be daemonized and return for bitbake use by Richard Purdie
+"""
+
+import os
+import sys
+import io
+import traceback
+
+def createDaemon(function, logfile):
+    """
+    Detach a process from the controlling terminal and run it in the
+    background as a daemon, returning control to the caller.
+    """
+
+    try:
+        # Fork a child process so the parent can exit.  This returns control to
+        # the command-line or shell.  It also guarantees that the child will not
+        # be a process group leader, since the child receives a new process ID
+        # and inherits the parent's process group ID.  This step is required
+        # to insure that the next call to os.setsid is successful.
+        pid = os.fork()
+    except OSError as e:
+        raise Exception("%s [%d]" % (e.strerror, e.errno))
+
+    if (pid == 0):      # The first child.
+        # To become the session leader of this new session and the process group
+        # leader of the new process group, we call os.setsid().  The process is
+        # also guaranteed not to have a controlling terminal.
+        os.setsid()
+        try:
+            # Fork a second child and exit immediately to prevent zombies.  This
+            # causes the second child process to be orphaned, making the init
+            # process responsible for its cleanup.  And, since the first child is
+            # a session leader without a controlling terminal, it's possible for
+            # it to acquire one by opening a terminal in the future (System V-
+            # based systems).  This second fork guarantees that the child is no
+            # longer a session leader, preventing the daemon from ever acquiring
+            # a controlling terminal.
+            pid = os.fork()     # Fork a second child.
+        except OSError as e:
+            raise Exception("%s [%d]" % (e.strerror, e.errno))
+
+        if (pid != 0):
+            # Parent (the first child) of the second child.
+            # exit() or _exit()?
+            # _exit is like exit(), but it doesn't call any functions registered
+            # with atexit (and on_exit) or any registered signal handlers.  It also
+            # closes any open file descriptors.  Using exit() may cause all stdio
+            # streams to be flushed twice and any temporary files may be unexpectedly
+            # removed.  It's therefore recommended that child branches of a fork()
+            # and the parent branch(es) of a daemon use _exit().
+            os._exit(0)
+    else:
+        os.waitpid(pid, 0)
+        return
+
+    # The second child.
+
+    # Replace standard fds with our own
+    si = open('/dev/null', 'r')
+    os.dup2(si.fileno(), sys.stdin.fileno())
+
+    try:
+        so = open(logfile, 'a+')
+        se = so
+        os.dup2(so.fileno(), sys.stdout.fileno())
+        os.dup2(se.fileno(), sys.stderr.fileno())
+    except io.UnsupportedOperation:
+        sys.stdout = open(logfile, 'a+')
+        sys.stderr = sys.stdout
+
+    try:
+        function()
+    except Exception as e:
+        traceback.print_exc()
+    finally:
+        bb.event.print_ui_queue()
+        os._exit(0)

bitbake/lib/bb/data.py

@@ -0,0 +1,403 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Data' implementations
+
+Functions for interacting with the data structure used by the
+BitBake build tools.
+
+The expandKeys and update_data are the most expensive
+operations. At night the cookie monster came by and
+suggested 'give me cookies on setting the variables and
+things will work out'. Taking this suggestion into account
+applying the skills from the not yet passed 'Entwurf und
+Analyse von Algorithmen' lecture and the cookie
+monster seems to be right. We will track setVar more carefully
+to have faster update_data and expandKeys operations.
+
+This is a trade-off between speed and memory again but
+the speed is more critical here.
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2005        Holger Hans Peter Freyther
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import sys, os, re
+if sys.argv[0][-5:] == "pydoc":
+    path = os.path.dirname(os.path.dirname(sys.argv[1]))
+else:
+    path = os.path.dirname(os.path.dirname(sys.argv[0]))
+sys.path.insert(0, path)
+from itertools import groupby
+
+from bb import data_smart
+from bb import codeparser
+import bb
+
+logger = data_smart.logger
+_dict_type = data_smart.DataSmart
+
+def init():
+    """Return a new object representing the Bitbake data"""
+    return _dict_type()
+
+def init_db(parent = None):
+    """Return a new object representing the Bitbake data,
+    optionally based on an existing object"""
+    if parent is not None:
+        return parent.createCopy()
+    else:
+        return _dict_type()
+
+def createCopy(source):
+    """Link the source set to the destination
+    If one does not find the value in the destination set,
+    search will go on to the source set to get the value.
+    Value from source are copy-on-write. i.e. any try to
+    modify one of them will end up putting the modified value
+    in the destination set.
+    """
+    return source.createCopy()
+
+def initVar(var, d):
+    """Non-destructive var init for data structure"""
+    d.initVar(var)
+
+def keys(d):
+    """Return a list of keys in d"""
+    return d.keys()
+
+
+__expand_var_regexp__ = re.compile(r"\${[^{}]+}")
+__expand_python_regexp__ = re.compile(r"\${@.+?}")
+
+def expand(s, d, varname = None):
+    """Variable expansion using the data store"""
+    return d.expand(s, varname)
+
+def expandKeys(alterdata, readdata = None):
+    if readdata == None:
+        readdata = alterdata
+
+    todolist = {}
+    for key in alterdata:
+        if not '${' in key:
+            continue
+
+        ekey = expand(key, readdata)
+        if key == ekey:
+            continue
+        todolist[key] = ekey
+
+    # These two for loops are split for performance to maximise the
+    # usefulness of the expand cache
+    for key in sorted(todolist):
+        ekey = todolist[key]
+        newval = alterdata.getVar(ekey, False)
+        if newval is not None:
+            val = alterdata.getVar(key, False)
+            if val is not None:
+                bb.warn("Variable key %s (%s) replaces original key %s (%s)." % (key, val, ekey, newval))
+        alterdata.renameVar(key, ekey)
+
+def inheritFromOS(d, savedenv, permitted):
+    """Inherit variables from the initial environment."""
+    exportlist = bb.utils.preserved_envvars_exported()
+    for s in savedenv.keys():
+        if s in permitted:
+            try:
+                d.setVar(s, savedenv.getVar(s), op = 'from env')
+                if s in exportlist:
+                    d.setVarFlag(s, "export", True, op = 'auto env export')
+            except TypeError:
+                pass
+
+def emit_var(var, o=sys.__stdout__, d = init(), all=False):
+    """Emit a variable to be sourced by a shell."""
+    func = d.getVarFlag(var, "func", False)
+    if d.getVarFlag(var, 'python', False) and func:
+        return False
+
+    export = d.getVarFlag(var, "export", False)
+    unexport = d.getVarFlag(var, "unexport", False)
+    if not all and not export and not unexport and not func:
+        return False
+
+    try:
+        if all:
+            oval = d.getVar(var, False)
+        val = d.getVar(var)
+    except (KeyboardInterrupt, bb.build.FuncFailed):
+        raise
+    except Exception as exc:
+        o.write('# expansion of %s threw %s: %s\n' % (var, exc.__class__.__name__, str(exc)))
+        return False
+
+    if all:
+        d.varhistory.emit(var, oval, val, o, d)
+
+    if (var.find("-") != -1 or var.find(".") != -1 or var.find('{') != -1 or var.find('}') != -1 or var.find('+') != -1) and not all:
+        return False
+
+    varExpanded = d.expand(var)
+
+    if unexport:
+        o.write('unset %s\n' % varExpanded)
+        return False
+
+    if val is None:
+        return False
+
+    val = str(val)
+
+    if varExpanded.startswith("BASH_FUNC_"):
+        varExpanded = varExpanded[10:-2]
+        val = val[3:] # Strip off "() "
+        o.write("%s() %s\n" % (varExpanded, val))
+        o.write("export -f %s\n" % (varExpanded))
+        return True
+
+    if func:
+        # NOTE: should probably check for unbalanced {} within the var
+        val = val.rstrip('\n')
+        o.write("%s() {\n%s\n}\n" % (varExpanded, val))
+        return 1
+
+    if export:
+        o.write('export ')
+
+    # if we're going to output this within doublequotes,
+    # to a shell, we need to escape the quotes in the var
+    alter = re.sub('"', '\\"', val)
+    alter = re.sub('\n', ' \\\n', alter)
+    alter = re.sub('\\$', '\\\\$', alter)
+    o.write('%s="%s"\n' % (varExpanded, alter))
+    return False
+
+def emit_env(o=sys.__stdout__, d = init(), all=False):
+    """Emits all items in the data store in a format such that it can be sourced by a shell."""
+
+    isfunc = lambda key: bool(d.getVarFlag(key, "func", False))
+    keys = sorted((key for key in d.keys() if not key.startswith("__")), key=isfunc)
+    grouped = groupby(keys, isfunc)
+    for isfunc, keys in grouped:
+        for key in sorted(keys):
+            emit_var(key, o, d, all and not isfunc) and o.write('\n')
+
+def exported_keys(d):
+    return (key for key in d.keys() if not key.startswith('__') and
+                                      d.getVarFlag(key, 'export', False) and
+                                      not d.getVarFlag(key, 'unexport', False))
+
+def exported_vars(d):
+    k = list(exported_keys(d))
+    for key in k:
+        try:
+            value = d.getVar(key)
+        except Exception as err:
+            bb.warn("%s: Unable to export ${%s}: %s" % (d.getVar("FILE"), key, err))
+            continue
+
+        if value is not None:
+            yield key, str(value)
+
+def emit_func(func, o=sys.__stdout__, d = init()):
+    """Emits all items in the data store in a format such that it can be sourced by a shell."""
+
+    keys = (key for key in d.keys() if not key.startswith("__") and not d.getVarFlag(key, "func", False))
+    for key in sorted(keys):
+        emit_var(key, o, d, False)
+
+    o.write('\n')
+    emit_var(func, o, d, False) and o.write('\n')
+    newdeps = bb.codeparser.ShellParser(func, logger).parse_shell(d.getVar(func))
+    newdeps |= set((d.getVarFlag(func, "vardeps") or "").split())
+    seen = set()
+    while newdeps:
+        deps = newdeps
+        seen |= deps
+        newdeps = set()
+        for dep in deps:
+            if d.getVarFlag(dep, "func", False) and not d.getVarFlag(dep, "python", False):
+               emit_var(dep, o, d, False) and o.write('\n')
+               newdeps |=  bb.codeparser.ShellParser(dep, logger).parse_shell(d.getVar(dep))
+               newdeps |= set((d.getVarFlag(dep, "vardeps") or "").split())
+        newdeps -= seen
+
+_functionfmt = """
+def {function}(d):
+{body}"""
+
+def emit_func_python(func, o=sys.__stdout__, d = init()):
+    """Emits all items in the data store in a format such that it can be sourced by a shell."""
+
+    def write_func(func, o, call = False):
+        body = d.getVar(func, False)
+        if not body.startswith("def"):
+            body = _functionfmt.format(function=func, body=body)
+
+        o.write(body.strip() + "\n\n")
+        if call:
+            o.write(func + "(d)" + "\n\n")
+
+    write_func(func, o, True)
+    pp = bb.codeparser.PythonParser(func, logger)
+    pp.parse_python(d.getVar(func, False))
+    newdeps = pp.execs
+    newdeps |= set((d.getVarFlag(func, "vardeps") or "").split())
+    seen = set()
+    while newdeps:
+        deps = newdeps
+        seen |= deps
+        newdeps = set()
+        for dep in deps:
+            if d.getVarFlag(dep, "func", False) and d.getVarFlag(dep, "python", False):
+               write_func(dep, o)
+               pp = bb.codeparser.PythonParser(dep, logger)
+               pp.parse_python(d.getVar(dep, False))
+               newdeps |= pp.execs
+               newdeps |= set((d.getVarFlag(dep, "vardeps") or "").split())
+        newdeps -= seen
+
+def update_data(d):
+    """Performs final steps upon the datastore, including application of overrides"""
+    d.finalize(parent = True)
+
+def build_dependencies(key, keys, shelldeps, varflagsexcl, d):
+    deps = set()
+    try:
+        if key[-1] == ']':
+            vf = key[:-1].split('[')
+            value = d.getVarFlag(vf[0], vf[1], False)
+            parser = d.expandWithRefs(value, key)
+            deps |= parser.references
+            deps = deps | (keys & parser.execs)
+            return deps, value
+        varflags = d.getVarFlags(key, ["vardeps", "vardepvalue", "vardepsexclude", "exports", "postfuncs", "prefuncs", "lineno", "filename"]) or {}
+        vardeps = varflags.get("vardeps")
+        value = d.getVarFlag(key, "_content", False)
+
+        def handle_contains(value, contains, d):
+            newvalue = ""
+            for k in sorted(contains):
+                l = (d.getVar(k) or "").split()
+                for item in sorted(contains[k]):
+                    for word in item.split():
+                        if not word in l:
+                            newvalue += "\n%s{%s} = Unset" % (k, item)
+                            break
+                    else:
+                        newvalue += "\n%s{%s} = Set" % (k, item)
+            if not newvalue:
+                return value
+            if not value:
+                return newvalue
+            return value + newvalue
+
+        if "vardepvalue" in varflags:
+           value = varflags.get("vardepvalue")
+        elif varflags.get("func"):
+            if varflags.get("python"):
+                parser = bb.codeparser.PythonParser(key, logger)
+                if value and "\t" in value:
+                    logger.warning("Variable %s contains tabs, please remove these (%s)" % (key, d.getVar("FILE")))
+                parser.parse_python(value, filename=varflags.get("filename"), lineno=varflags.get("lineno"))
+                deps = deps | parser.references
+                deps = deps | (keys & parser.execs)
+                value = handle_contains(value, parser.contains, d)
+            else:
+                parsedvar = d.expandWithRefs(value, key)
+                parser = bb.codeparser.ShellParser(key, logger)
+                parser.parse_shell(parsedvar.value)
+                deps = deps | shelldeps
+                deps = deps | parsedvar.references
+                deps = deps | (keys & parser.execs) | (keys & parsedvar.execs)
+                value = handle_contains(value, parsedvar.contains, d)
+            if vardeps is None:
+                parser.log.flush()
+            if "prefuncs" in varflags:
+                deps = deps | set(varflags["prefuncs"].split())
+            if "postfuncs" in varflags:
+                deps = deps | set(varflags["postfuncs"].split())
+            if "exports" in varflags:
+                deps = deps | set(varflags["exports"].split())
+        else:
+            parser = d.expandWithRefs(value, key)
+            deps |= parser.references
+            deps = deps | (keys & parser.execs)
+            value = handle_contains(value, parser.contains, d)
+
+        if "vardepvalueexclude" in varflags:
+            exclude = varflags.get("vardepvalueexclude")
+            for excl in exclude.split('|'):
+                if excl:
+                    value = value.replace(excl, '')
+
+        # Add varflags, assuming an exclusion list is set
+        if varflagsexcl:
+            varfdeps = []
+            for f in varflags:
+                if f not in varflagsexcl:
+                    varfdeps.append('%s[%s]' % (key, f))
+            if varfdeps:
+                deps |= set(varfdeps)
+
+        deps |= set((vardeps or "").split())
+        deps -= set(varflags.get("vardepsexclude", "").split())
+    except bb.parse.SkipRecipe:
+        raise
+    except Exception as e:
+        bb.warn("Exception during build_dependencies for %s" % key)
+        raise
+    return deps, value
+    #bb.note("Variable %s references %s and calls %s" % (key, str(deps), str(execs)))
+    #d.setVarFlag(key, "vardeps", deps)
+
+def generate_dependencies(d):
+
+    keys = set(key for key in d if not key.startswith("__"))
+    shelldeps = set(key for key in d.getVar("__exportlist", False) if d.getVarFlag(key, "export", False) and not d.getVarFlag(key, "unexport", False))
+    varflagsexcl = d.getVar('BB_SIGNATURE_EXCLUDE_FLAGS')
+
+    deps = {}
+    values = {}
+
+    tasklist = d.getVar('__BBTASKS', False) or []
+    for task in tasklist:
+        deps[task], values[task] = build_dependencies(task, keys, shelldeps, varflagsexcl, d)
+        newdeps = deps[task]
+        seen = set()
+        while newdeps:
+            nextdeps = newdeps
+            seen |= nextdeps
+            newdeps = set()
+            for dep in nextdeps:
+                if dep not in deps:
+                    deps[dep], values[dep] = build_dependencies(dep, keys, shelldeps, varflagsexcl, d)
+                newdeps |=  deps[dep]
+            newdeps -= seen
+        #print "For %s: %s" % (task, str(deps[task]))
+    return tasklist, deps, values
+
+def inherits_class(klass, d):
+    val = d.getVar('__inherit_cache', False) or []
+    needle = os.path.join('classes', '%s.bbclass' % klass)
+    for v in val:
+        if v.endswith(needle):
+            return True
+    return False

bitbake/lib/bb/event.py

@@ -0,0 +1,840 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Event' implementation
+
+Classes and functions for manipulating 'events' in the
+BitBake build tools.
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os, sys
+import warnings
+import pickle
+import logging
+import atexit
+import traceback
+import ast
+import threading
+
+import bb.utils
+import bb.compat
+import bb.exceptions
+
+# This is the pid for which we should generate the event. This is set when
+# the runqueue forks off.
+worker_pid = 0
+worker_fire = None
+
+logger = logging.getLogger('BitBake.Event')
+
+class Event(object):
+    """Base class for events"""
+
+    def __init__(self):
+        self.pid = worker_pid
+
+
+class HeartbeatEvent(Event):
+    """Triggered at regular time intervals of 10 seconds. Other events can fire much more often
+       (runQueueTaskStarted when there are many short tasks) or not at all for long periods
+       of time (again runQueueTaskStarted, when there is just one long-running task), so this
+       event is more suitable for doing some task-independent work occassionally."""
+    def __init__(self, time):
+        Event.__init__(self)
+        self.time = time
+
+Registered        = 10
+AlreadyRegistered = 14
+
+def get_class_handlers():
+    return _handlers
+
+def set_class_handlers(h):
+    global _handlers
+    _handlers = h
+
+def clean_class_handlers():
+    return bb.compat.OrderedDict()
+
+# Internal
+_handlers = clean_class_handlers()
+_ui_handlers = {}
+_ui_logfilters = {}
+_ui_handler_seq = 0
+_event_handler_map = {}
+_catchall_handlers = {}
+_eventfilter = None
+_uiready = False
+_thread_lock = threading.Lock()
+_thread_lock_enabled = False
+
+if hasattr(__builtins__, '__setitem__'):
+    builtins = __builtins__
+else:
+    builtins = __builtins__.__dict__
+
+def enable_threadlock():
+    global _thread_lock_enabled
+    _thread_lock_enabled = True
+
+def disable_threadlock():
+    global _thread_lock_enabled
+    _thread_lock_enabled = False
+
+def execute_handler(name, handler, event, d):
+    event.data = d
+    addedd = False
+    if 'd' not in builtins:
+        builtins['d'] = d
+        addedd = True
+    try:
+        ret = handler(event)
+    except (bb.parse.SkipRecipe, bb.BBHandledException):
+        raise
+    except Exception:
+        etype, value, tb = sys.exc_info()
+        logger.error("Execution of event handler '%s' failed" % name,
+                        exc_info=(etype, value, tb.tb_next))
+        raise
+    except SystemExit as exc:
+        if exc.code != 0:
+            logger.error("Execution of event handler '%s' failed" % name)
+        raise
+    finally:
+        del event.data
+        if addedd:
+            del builtins['d']
+
+def fire_class_handlers(event, d):
+    if isinstance(event, logging.LogRecord):
+        return
+
+    eid = str(event.__class__)[8:-2]
+    evt_hmap = _event_handler_map.get(eid, {})
+    for name, handler in list(_handlers.items()):
+        if name in _catchall_handlers or name in evt_hmap:
+            if _eventfilter:
+                if not _eventfilter(name, handler, event, d):
+                    continue
+            execute_handler(name, handler, event, d)
+
+ui_queue = []
+@atexit.register
+def print_ui_queue():
+    """If we're exiting before a UI has been spawned, display any queued
+    LogRecords to the console."""
+    logger = logging.getLogger("BitBake")
+    if not _uiready:
+        from bb.msg import BBLogFormatter
+        stdout = logging.StreamHandler(sys.stdout)
+        stderr = logging.StreamHandler(sys.stderr)
+        formatter = BBLogFormatter("%(levelname)s: %(message)s")
+        stdout.setFormatter(formatter)
+        stderr.setFormatter(formatter)
+
+        # First check to see if we have any proper messages
+        msgprint = False
+        msgerrs = False
+
+        # Should we print to stderr?
+        for event in ui_queue[:]:
+            if isinstance(event, logging.LogRecord) and event.levelno >= logging.WARNING:
+                msgerrs = True
+                break
+
+        if msgerrs:
+            logger.addHandler(stderr)
+        else:
+            logger.addHandler(stdout)
+
+        for event in ui_queue[:]:
+            if isinstance(event, logging.LogRecord):
+                if event.levelno > logging.DEBUG:
+                    logger.handle(event)
+                    msgprint = True
+
+        # Nope, so just print all of the messages we have (including debug messages)
+        if not msgprint:
+            for event in ui_queue[:]:
+                if isinstance(event, logging.LogRecord):
+                    logger.handle(event)
+        if msgerrs:
+            logger.removeHandler(stderr)
+        else:
+            logger.removeHandler(stdout)
+
+def fire_ui_handlers(event, d):
+    global _thread_lock
+    global _thread_lock_enabled
+
+    if not _uiready:
+        # No UI handlers registered yet, queue up the messages
+        ui_queue.append(event)
+        return
+
+    if _thread_lock_enabled:
+        _thread_lock.acquire()
+
+    errors = []
+    for h in _ui_handlers:
+        #print "Sending event %s" % event
+        try:
+             if not _ui_logfilters[h].filter(event):
+                 continue
+             # We use pickle here since it better handles object instances
+             # which xmlrpc's marshaller does not. Events *must* be serializable
+             # by pickle.
+             if hasattr(_ui_handlers[h].event, "sendpickle"):
+                _ui_handlers[h].event.sendpickle((pickle.dumps(event)))
+             else:
+                _ui_handlers[h].event.send(event)
+        except:
+            errors.append(h)
+    for h in errors:
+        del _ui_handlers[h]
+
+    if _thread_lock_enabled:
+        _thread_lock.release()
+
+def fire(event, d):
+    """Fire off an Event"""
+
+    # We can fire class handlers in the worker process context and this is
+    # desired so they get the task based datastore.
+    # UI handlers need to be fired in the server context so we defer this. They
+    # don't have a datastore so the datastore context isn't a problem.
+
+    fire_class_handlers(event, d)
+    if worker_fire:
+        worker_fire(event, d)
+    else:
+        # If messages have been queued up, clear the queue
+        global _uiready, ui_queue
+        if _uiready and ui_queue:
+            for queue_event in ui_queue:
+                fire_ui_handlers(queue_event, d)
+            ui_queue = []
+        fire_ui_handlers(event, d)
+
+def fire_from_worker(event, d):
+    fire_ui_handlers(event, d)
+
+noop = lambda _: None
+def register(name, handler, mask=None, filename=None, lineno=None):
+    """Register an Event handler"""
+
+    # already registered
+    if name in _handlers:
+        return AlreadyRegistered
+
+    if handler is not None:
+        # handle string containing python code
+        if isinstance(handler, str):
+            tmp = "def %s(e):\n%s" % (name, handler)
+            try:
+                code = bb.methodpool.compile_cache(tmp)
+                if not code:
+                    if filename is None:
+                        filename = "%s(e)" % name
+                    code = compile(tmp, filename, "exec", ast.PyCF_ONLY_AST)
+                    if lineno is not None:
+                        ast.increment_lineno(code, lineno-1)
+                    code = compile(code, filename, "exec")
+                    bb.methodpool.compile_cache_add(tmp, code)
+            except SyntaxError:
+                logger.error("Unable to register event handler '%s':\n%s", name,
+                             ''.join(traceback.format_exc(limit=0)))
+                _handlers[name] = noop
+                return
+            env = {}
+            bb.utils.better_exec(code, env)
+            func = bb.utils.better_eval(name, env)
+            _handlers[name] = func
+        else:
+            _handlers[name] = handler
+
+        if not mask or '*' in mask:
+            _catchall_handlers[name] = True
+        else:
+            for m in mask:
+                if _event_handler_map.get(m, None) is None:
+                    _event_handler_map[m] = {}
+                _event_handler_map[m][name] = True
+
+        return Registered
+
+def remove(name, handler):
+    """Remove an Event handler"""
+    _handlers.pop(name)
+    if name in _catchall_handlers:
+        _catchall_handlers.pop(name)
+    for event in _event_handler_map.keys():
+        if name in _event_handler_map[event]:
+            _event_handler_map[event].pop(name)
+
+def get_handlers():
+    return _handlers
+
+def set_handlers(handlers):
+    global _handlers
+    _handlers = handlers
+
+def set_eventfilter(func):
+    global _eventfilter
+    _eventfilter = func
+
+def register_UIHhandler(handler, mainui=False):
+    bb.event._ui_handler_seq = bb.event._ui_handler_seq + 1
+    _ui_handlers[_ui_handler_seq] = handler
+    level, debug_domains = bb.msg.constructLogOptions()
+    _ui_logfilters[_ui_handler_seq] = UIEventFilter(level, debug_domains)
+    if mainui:
+        global _uiready
+        _uiready = _ui_handler_seq
+    return _ui_handler_seq
+
+def unregister_UIHhandler(handlerNum, mainui=False):
+    if mainui:
+        global _uiready
+        _uiready = False
+    if handlerNum in _ui_handlers:
+        del _ui_handlers[handlerNum]
+    return
+
+def get_uihandler():
+    if _uiready is False:
+        return None
+    return _uiready
+
+# Class to allow filtering of events and specific filtering of LogRecords *before* we put them over the IPC
+class UIEventFilter(object):
+    def __init__(self, level, debug_domains):
+        self.update(None, level, debug_domains)
+
+    def update(self, eventmask, level, debug_domains):
+        self.eventmask = eventmask
+        self.stdlevel = level
+        self.debug_domains = debug_domains
+
+    def filter(self, event):
+        if isinstance(event, logging.LogRecord):
+            if event.levelno >= self.stdlevel:
+                return True
+            if event.name in self.debug_domains and event.levelno >= self.debug_domains[event.name]:
+                return True
+            return False
+        eid = str(event.__class__)[8:-2]
+        if self.eventmask and eid not in self.eventmask:
+            return False
+        return True
+
+def set_UIHmask(handlerNum, level, debug_domains, mask):
+    if not handlerNum in _ui_handlers:
+        return False
+    if '*' in mask:
+        _ui_logfilters[handlerNum].update(None, level, debug_domains)
+    else:
+        _ui_logfilters[handlerNum].update(mask, level, debug_domains)
+    return True
+
+def getName(e):
+    """Returns the name of a class or class instance"""
+    if getattr(e, "__name__", None) == None:
+        return e.__class__.__name__
+    else:
+        return e.__name__
+
+class OperationStarted(Event):
+    """An operation has begun"""
+    def __init__(self, msg = "Operation Started"):
+        Event.__init__(self)
+        self.msg = msg
+
+class OperationCompleted(Event):
+    """An operation has completed"""
+    def __init__(self, total, msg = "Operation Completed"):
+        Event.__init__(self)
+        self.total = total
+        self.msg = msg
+
+class OperationProgress(Event):
+    """An operation is in progress"""
+    def __init__(self, current, total, msg = "Operation in Progress"):
+        Event.__init__(self)
+        self.current = current
+        self.total = total
+        self.msg = msg + ": %s/%s" % (current, total);
+
+class ConfigParsed(Event):
+    """Configuration Parsing Complete"""
+
+class MultiConfigParsed(Event):
+    """Multi-Config Parsing Complete"""
+    def __init__(self, mcdata):
+        self.mcdata = mcdata
+        Event.__init__(self)
+
+class RecipeEvent(Event):
+    def __init__(self, fn):
+        self.fn = fn
+        Event.__init__(self)
+
+class RecipePreFinalise(RecipeEvent):
+    """ Recipe Parsing Complete but not yet finialised"""
+
+class RecipeTaskPreProcess(RecipeEvent):
+    """
+    Recipe Tasks about to be finalised
+    The list of tasks should be final at this point and handlers
+    are only able to change interdependencies
+    """
+    def __init__(self, fn, tasklist):
+        self.fn = fn
+        self.tasklist = tasklist
+        Event.__init__(self)
+
+class RecipeParsed(RecipeEvent):
+    """ Recipe Parsing Complete """
+
+class StampUpdate(Event):
+    """Trigger for any adjustment of the stamp files to happen"""
+
+    def __init__(self, targets, stampfns):
+        self._targets = targets
+        self._stampfns = stampfns
+        Event.__init__(self)
+
+    def getStampPrefix(self):
+        return self._stampfns
+
+    def getTargets(self):
+        return self._targets
+
+    stampPrefix = property(getStampPrefix)
+    targets = property(getTargets)
+
+class BuildBase(Event):
+    """Base class for bitbake build events"""
+
+    def __init__(self, n, p, failures = 0):
+        self._name = n
+        self._pkgs = p
+        Event.__init__(self)
+        self._failures = failures
+
+    def getPkgs(self):
+        return self._pkgs
+
+    def setPkgs(self, pkgs):
+        self._pkgs = pkgs
+
+    def getName(self):
+        return self._name
+
+    def setName(self, name):
+        self._name = name
+
+    def getCfg(self):
+        return self.data
+
+    def setCfg(self, cfg):
+        self.data = cfg
+
+    def getFailures(self):
+        """
+        Return the number of failed packages
+        """
+        return self._failures
+
+    pkgs = property(getPkgs, setPkgs, None, "pkgs property")
+    name = property(getName, setName, None, "name property")
+    cfg = property(getCfg, setCfg, None, "cfg property")
+
+
+
+class BuildInit(BuildBase):
+    """buildFile or buildTargets was invoked"""
+    def __init__(self, p=[]):
+        name = None
+        BuildBase.__init__(self, name, p)
+
+class BuildStarted(BuildBase, OperationStarted):
+    """Event when builds start"""
+    def __init__(self, n, p, failures = 0):
+        OperationStarted.__init__(self, "Building Started")
+        BuildBase.__init__(self, n, p, failures)
+
+class BuildCompleted(BuildBase, OperationCompleted):
+    """Event when builds have completed"""
+    def __init__(self, total, n, p, failures=0, interrupted=0):
+        if not failures:
+            OperationCompleted.__init__(self, total, "Building Succeeded")
+        else:
+            OperationCompleted.__init__(self, total, "Building Failed")
+        self._interrupted = interrupted
+        BuildBase.__init__(self, n, p, failures)
+
+class DiskFull(Event):
+    """Disk full case build aborted"""
+    def __init__(self, dev, type, freespace, mountpoint):
+        Event.__init__(self)
+        self._dev = dev
+        self._type = type
+        self._free = freespace
+        self._mountpoint = mountpoint
+
+class DiskUsageSample:
+    def __init__(self, available_bytes, free_bytes, total_bytes):
+        # Number of bytes available to non-root processes.
+        self.available_bytes = available_bytes
+        # Number of bytes available to root processes.
+        self.free_bytes = free_bytes
+        # Total capacity of the volume.
+        self.total_bytes = total_bytes
+
+class MonitorDiskEvent(Event):
+    """If BB_DISKMON_DIRS is set, then this event gets triggered each time disk space is checked.
+       Provides information about devices that are getting monitored."""
+    def __init__(self, disk_usage):
+        Event.__init__(self)
+        # hash of device root path -> DiskUsageSample
+        self.disk_usage = disk_usage
+
+class NoProvider(Event):
+    """No Provider for an Event"""
+
+    def __init__(self, item, runtime=False, dependees=None, reasons=None, close_matches=None):
+        Event.__init__(self)
+        self._item = item
+        self._runtime = runtime
+        self._dependees = dependees
+        self._reasons = reasons
+        self._close_matches = close_matches
+
+    def getItem(self):
+        return self._item
+
+    def isRuntime(self):
+        return self._runtime
+
+    def __str__(self):
+        msg = ''
+        if self._runtime:
+            r = "R"
+        else:
+            r = ""
+
+        extra = ''
+        if not self._reasons:
+            if self._close_matches:
+                extra = ". Close matches:\n  %s" % '\n  '.join(self._close_matches)
+
+        if self._dependees:
+            msg = "Nothing %sPROVIDES '%s' (but %s %sDEPENDS on or otherwise requires it)%s" % (r, self._item, ", ".join(self._dependees), r, extra)
+        else:
+            msg = "Nothing %sPROVIDES '%s'%s" % (r, self._item, extra)
+        if self._reasons:
+            for reason in self._reasons:
+                msg += '\n' + reason
+        return msg
+
+
+class MultipleProviders(Event):
+    """Multiple Providers"""
+
+    def  __init__(self, item, candidates, runtime = False):
+        Event.__init__(self)
+        self._item = item
+        self._candidates = candidates
+        self._is_runtime = runtime
+
+    def isRuntime(self):
+        """
+        Is this a runtime issue?
+        """
+        return self._is_runtime
+
+    def getItem(self):
+        """
+        The name for the to be build item
+        """
+        return self._item
+
+    def getCandidates(self):
+        """
+        Get the possible Candidates for a PROVIDER.
+        """
+        return self._candidates
+
+    def __str__(self):
+        msg = "Multiple providers are available for %s%s (%s)" % (self._is_runtime and "runtime " or "",
+                            self._item,
+                            ", ".join(self._candidates))
+        rtime = ""
+        if self._is_runtime:
+            rtime = "R"
+        msg += "\nConsider defining a PREFERRED_%sPROVIDER entry to match %s" % (rtime, self._item)
+        return msg
+
+class ParseStarted(OperationStarted):
+    """Recipe parsing for the runqueue has begun"""
+    def __init__(self, total):
+        OperationStarted.__init__(self, "Recipe parsing Started")
+        self.total = total
+
+class ParseCompleted(OperationCompleted):
+    """Recipe parsing for the runqueue has completed"""
+    def __init__(self, cached, parsed, skipped, masked, virtuals, errors, total):
+        OperationCompleted.__init__(self, total, "Recipe parsing Completed")
+        self.cached = cached
+        self.parsed = parsed
+        self.skipped = skipped
+        self.virtuals = virtuals
+        self.masked = masked
+        self.errors = errors
+        self.sofar = cached + parsed
+
+class ParseProgress(OperationProgress):
+    """Recipe parsing progress"""
+    def __init__(self, current, total):
+        OperationProgress.__init__(self, current, total, "Recipe parsing")
+
+
+class CacheLoadStarted(OperationStarted):
+    """Loading of the dependency cache has begun"""
+    def __init__(self, total):
+        OperationStarted.__init__(self, "Loading cache Started")
+        self.total = total
+
+class CacheLoadProgress(OperationProgress):
+    """Cache loading progress"""
+    def __init__(self, current, total):
+        OperationProgress.__init__(self, current, total, "Loading cache")
+
+class CacheLoadCompleted(OperationCompleted):
+    """Cache loading is complete"""
+    def __init__(self, total, num_entries):
+        OperationCompleted.__init__(self, total, "Loading cache Completed")
+        self.num_entries = num_entries
+
+class TreeDataPreparationStarted(OperationStarted):
+    """Tree data preparation started"""
+    def __init__(self):
+        OperationStarted.__init__(self, "Preparing tree data Started")
+
+class TreeDataPreparationProgress(OperationProgress):
+    """Tree data preparation is in progress"""
+    def __init__(self, current, total):
+        OperationProgress.__init__(self, current, total, "Preparing tree data")
+
+class TreeDataPreparationCompleted(OperationCompleted):
+    """Tree data preparation completed"""
+    def __init__(self, total):
+        OperationCompleted.__init__(self, total, "Preparing tree data Completed")
+
+class DepTreeGenerated(Event):
+    """
+    Event when a dependency tree has been generated
+    """
+
+    def __init__(self, depgraph):
+        Event.__init__(self)
+        self._depgraph = depgraph
+
+class TargetsTreeGenerated(Event):
+    """
+    Event when a set of buildable targets has been generated
+    """
+    def __init__(self, model):
+        Event.__init__(self)
+        self._model = model
+
+class ReachableStamps(Event):
+    """
+    An event listing all stamps reachable after parsing
+    which the metadata may use to clean up stale data
+    """
+
+    def __init__(self, stamps):
+        Event.__init__(self)
+        self.stamps = stamps
+
+class FilesMatchingFound(Event):
+    """
+    Event when a list of files matching the supplied pattern has
+    been generated
+    """
+    def __init__(self, pattern, matches):
+        Event.__init__(self)
+        self._pattern = pattern
+        self._matches = matches
+
+class ConfigFilesFound(Event):
+    """
+    Event when a list of appropriate config files has been generated
+    """
+    def __init__(self, variable, values):
+        Event.__init__(self)
+        self._variable = variable
+        self._values = values
+
+class ConfigFilePathFound(Event):
+    """
+    Event when a path for a config file has been found
+    """
+    def __init__(self, path):
+        Event.__init__(self)
+        self._path = path
+
+class MsgBase(Event):
+    """Base class for messages"""
+
+    def __init__(self, msg):
+        self._message = msg
+        Event.__init__(self)
+
+class MsgDebug(MsgBase):
+    """Debug Message"""
+
+class MsgNote(MsgBase):
+    """Note Message"""
+
+class MsgWarn(MsgBase):
+    """Warning Message"""
+
+class MsgError(MsgBase):
+    """Error Message"""
+
+class MsgFatal(MsgBase):
+    """Fatal Message"""
+
+class MsgPlain(MsgBase):
+    """General output"""
+
+class LogExecTTY(Event):
+    """Send event containing program to spawn on tty of the logger"""
+    def __init__(self, msg, prog, sleep_delay, retries):
+        Event.__init__(self)
+        self.msg = msg
+        self.prog = prog
+        self.sleep_delay = sleep_delay
+        self.retries = retries
+
+class LogHandler(logging.Handler):
+    """Dispatch logging messages as bitbake events"""
+
+    def emit(self, record):
+        if record.exc_info:
+            etype, value, tb = record.exc_info
+            if hasattr(tb, 'tb_next'):
+                tb = list(bb.exceptions.extract_traceback(tb, context=3))
+            # Need to turn the value into something the logging system can pickle
+            record.bb_exc_info = (etype, value, tb)
+            record.bb_exc_formatted = bb.exceptions.format_exception(etype, value, tb, limit=5)
+            value = str(value)
+            record.exc_info = None
+        fire(record, None)
+
+    def filter(self, record):
+        record.taskpid = worker_pid
+        return True
+
+class MetadataEvent(Event):
+    """
+    Generic event that target for OE-Core classes
+    to report information during asynchrous execution
+    """
+    def __init__(self, eventtype, eventdata):
+        Event.__init__(self)
+        self.type = eventtype
+        self._localdata = eventdata
+
+class ProcessStarted(Event):
+    """
+    Generic process started event (usually part of the initial startup)
+    where further progress events will be delivered
+    """
+    def __init__(self, processname, total):
+        Event.__init__(self)
+        self.processname = processname
+        self.total = total
+
+class ProcessProgress(Event):
+    """
+    Generic process progress event (usually part of the initial startup)
+    """
+    def __init__(self, processname, progress):
+        Event.__init__(self)
+        self.processname = processname
+        self.progress = progress
+
+class ProcessFinished(Event):
+    """
+    Generic process finished event (usually part of the initial startup)
+    """
+    def __init__(self, processname):
+        Event.__init__(self)
+        self.processname = processname
+
+class SanityCheck(Event):
+    """
+    Event to run sanity checks, either raise errors or generate events as return status.
+    """
+    def __init__(self, generateevents = True):
+        Event.__init__(self)
+        self.generateevents = generateevents
+
+class SanityCheckPassed(Event):
+    """
+    Event to indicate sanity check has passed
+    """
+
+class SanityCheckFailed(Event):
+    """
+    Event to indicate sanity check has failed
+    """
+    def __init__(self, msg, network_error=False):
+        Event.__init__(self)
+        self._msg = msg
+        self._network_error = network_error
+
+class NetworkTest(Event):
+    """
+    Event to run network connectivity tests, either raise errors or generate events as return status.
+    """
+    def __init__(self, generateevents = True):
+        Event.__init__(self)
+        self.generateevents = generateevents
+
+class NetworkTestPassed(Event):
+    """
+    Event to indicate network test has passed
+    """
+
+class NetworkTestFailed(Event):
+    """
+    Event to indicate network test has failed
+    """
+
+class FindSigInfoResult(Event):
+    """
+    Event to return results from findSigInfo command
+    """
+    def __init__(self, result):
+        Event.__init__(self)
+        self.result = result

bitbake/lib/bb/exceptions.py

@@ -0,0 +1,91 @@
+
+import inspect
+import traceback
+import bb.namedtuple_with_abc
+from collections import namedtuple
+
+
+class TracebackEntry(namedtuple.abc):
+    """Pickleable representation of a traceback entry"""
+    _fields = 'filename lineno function args code_context index'
+    _header = '  File "{0.filename}", line {0.lineno}, in {0.function}{0.args}'
+
+    def format(self, formatter=None):
+        if not self.code_context:
+            return self._header.format(self) + '\n'
+
+        formatted = [self._header.format(self) + ':\n']
+
+        for lineindex, line in enumerate(self.code_context):
+            if formatter:
+                line = formatter(line)
+
+            if lineindex == self.index:
+                formatted.append('    >%s' % line)
+            else:
+                formatted.append('     %s' % line)
+        return formatted
+
+    def __str__(self):
+        return ''.join(self.format())
+
+def _get_frame_args(frame):
+    """Get the formatted arguments and class (if available) for a frame"""
+    arginfo = inspect.getargvalues(frame)
+
+    try:
+        if not arginfo.args:
+            return '', None
+    # There have been reports from the field of python 2.6 which doesn't 
+    # return a namedtuple here but simply a tuple so fallback gracefully if
+    # args isn't present.
+    except AttributeError:
+        return '', None
+
+    firstarg = arginfo.args[0]
+    if firstarg == 'self':
+        self = arginfo.locals['self']
+        cls = self.__class__.__name__
+
+        arginfo.args.pop(0)
+        del arginfo.locals['self']
+    else:
+        cls = None
+
+    formatted = inspect.formatargvalues(*arginfo)
+    return formatted, cls
+
+def extract_traceback(tb, context=1):
+    frames = inspect.getinnerframes(tb, context)
+    for frame, filename, lineno, function, code_context, index in frames:
+        formatted_args, cls = _get_frame_args(frame)
+        if cls:
+            function = '%s.%s' % (cls, function)
+        yield TracebackEntry(filename, lineno, function, formatted_args,
+                             code_context, index)
+
+def format_extracted(extracted, formatter=None, limit=None):
+    if limit:
+        extracted = extracted[-limit:]
+
+    formatted = []
+    for tracebackinfo in extracted:
+        formatted.extend(tracebackinfo.format(formatter))
+    return formatted
+
+
+def format_exception(etype, value, tb, context=1, limit=None, formatter=None):
+    formatted = ['Traceback (most recent call last):\n']
+
+    if hasattr(tb, 'tb_next'):
+        tb = extract_traceback(tb, context)
+
+    formatted.extend(format_extracted(tb, formatter, limit))
+    formatted.extend(traceback.format_exception_only(etype, value))
+    return formatted
+
+def to_string(exc):
+    if isinstance(exc, SystemExit):
+        if not isinstance(exc.code, str):
+            return 'Exited with "%d"' % exc.code
+    return str(exc)

bitbake/lib/bb/fetch2/bzr.py

@@ -0,0 +1,139 @@
+"""
+BitBake 'Fetch' implementation for bzr.
+
+"""
+
+# Copyright (C) 2007 Ross Burton
+# Copyright (C) 2007 Richard Purdie
+#
+#   Classes for obtaining upstream sources for the
+#   BitBake build tools.
+#   Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import sys
+import logging
+import bb
+from bb.fetch2 import FetchMethod
+from bb.fetch2 import FetchError
+from bb.fetch2 import runfetchcmd
+from bb.fetch2 import logger
+
+class Bzr(FetchMethod):
+    def supports(self, ud, d):
+        return ud.type in ['bzr']
+
+    def urldata_init(self, ud, d):
+        """
+        init bzr specific variable within url data
+        """
+        # Create paths to bzr checkouts
+        relpath = self._strip_leading_slashes(ud.path)
+        ud.pkgdir = os.path.join(d.expand('${BZRDIR}'), ud.host, relpath)
+
+        ud.setup_revisions(d)
+
+        if not ud.revision:
+            ud.revision = self.latest_revision(ud, d)
+
+        ud.localfile = d.expand('bzr_%s_%s_%s.tar.gz' % (ud.host, ud.path.replace('/', '.'), ud.revision))
+
+    def _buildbzrcommand(self, ud, d, command):
+        """
+        Build up an bzr commandline based on ud
+        command is "fetch", "update", "revno"
+        """
+
+        basecmd = d.expand('${FETCHCMD_bzr}')
+
+        proto =  ud.parm.get('protocol', 'http')
+
+        bzrroot = ud.host + ud.path
+
+        options = []
+
+        if command == "revno":
+            bzrcmd = "%s revno %s %s://%s" % (basecmd, " ".join(options), proto, bzrroot)
+        else:
+            if ud.revision:
+                options.append("-r %s" % ud.revision)
+
+            if command == "fetch":
+                bzrcmd = "%s branch %s %s://%s" % (basecmd, " ".join(options), proto, bzrroot)
+            elif command == "update":
+                bzrcmd = "%s pull %s --overwrite" % (basecmd, " ".join(options))
+            else:
+                raise FetchError("Invalid bzr command %s" % command, ud.url)
+
+        return bzrcmd
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        if os.access(os.path.join(ud.pkgdir, os.path.basename(ud.pkgdir), '.bzr'), os.R_OK):
+            bzrcmd = self._buildbzrcommand(ud, d, "update")
+            logger.debug(1, "BZR Update %s", ud.url)
+            bb.fetch2.check_network_access(d, bzrcmd, ud.url)
+            runfetchcmd(bzrcmd, d, workdir=os.path.join(ud.pkgdir, os.path.basename(ud.path)))
+        else:
+            bb.utils.remove(os.path.join(ud.pkgdir, os.path.basename(ud.pkgdir)), True)
+            bzrcmd = self._buildbzrcommand(ud, d, "fetch")
+            bb.fetch2.check_network_access(d, bzrcmd, ud.url)
+            logger.debug(1, "BZR Checkout %s", ud.url)
+            bb.utils.mkdirhier(ud.pkgdir)
+            logger.debug(1, "Running %s", bzrcmd)
+            runfetchcmd(bzrcmd, d, workdir=ud.pkgdir)
+
+        scmdata = ud.parm.get("scmdata", "")
+        if scmdata == "keep":
+            tar_flags = ""
+        else:
+            tar_flags = "--exclude='.bzr' --exclude='.bzrtags'"
+
+        # tar them up to a defined filename
+        runfetchcmd("tar %s -czf %s %s" % (tar_flags, ud.localpath, os.path.basename(ud.pkgdir)),
+                    d, cleanup=[ud.localpath], workdir=ud.pkgdir)
+
+    def supports_srcrev(self):
+        return True
+
+    def _revision_key(self, ud, d, name):
+        """
+        Return a unique key for the url
+        """
+        return "bzr:" + ud.pkgdir
+
+    def _latest_revision(self, ud, d, name):
+        """
+        Return the latest upstream revision number
+        """
+        logger.debug(2, "BZR fetcher hitting network for %s", ud.url)
+
+        bb.fetch2.check_network_access(d, self._buildbzrcommand(ud, d, "revno"), ud.url)
+
+        output = runfetchcmd(self._buildbzrcommand(ud, d, "revno"), d, True)
+
+        return output.strip()
+
+    def sortable_revision(self, ud, d, name):
+        """
+        Return a sortable revision number which in our case is the revision number
+        """
+
+        return False, self._build_revision(ud, d)
+
+    def _build_revision(self, ud, d):
+        return ud.revision

bitbake/lib/bb/fetch2/clearcase.py

@@ -0,0 +1,260 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' clearcase implementation
+
+The clearcase fetcher is used to retrieve files from a ClearCase repository.
+
+Usage in the recipe:
+
+    SRC_URI = "ccrc://cc.example.org/ccrc;vob=/example_vob;module=/example_module"
+    SRCREV = "EXAMPLE_CLEARCASE_TAG"
+    PV = "${@d.getVar("SRCREV", False).replace("/", "+")}"
+
+The fetcher uses the rcleartool or cleartool remote client, depending on which one is available.
+
+Supported SRC_URI options are:
+
+- vob
+    (required) The name of the clearcase VOB (with prepending "/")
+
+- module
+    The module in the selected VOB (with prepending "/")
+
+    The module and vob parameters are combined to create
+    the following load rule in the view config spec:
+                load <vob><module>
+
+- proto
+    http or https
+
+Related variables:
+
+    CCASE_CUSTOM_CONFIG_SPEC
+            Write a config spec to this variable in your recipe to use it instead
+            of the default config spec generated by this fetcher.
+            Please note that the SRCREV loses its functionality if you specify
+            this variable. SRCREV is still used to label the archive after a fetch,
+            but it doesn't define what's fetched.
+
+User credentials:
+    cleartool:
+            The login of cleartool is handled by the system. No special steps needed.
+
+    rcleartool:
+            In order to use rcleartool with authenticated users an `rcleartool login` is
+            necessary before using the fetcher.
+"""
+# Copyright (C) 2014 Siemens AG
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+import os
+import sys
+import shutil
+import bb
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import FetchError
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+from   distutils import spawn
+
+class ClearCase(FetchMethod):
+    """Class to fetch urls via 'clearcase'"""
+    def init(self, d):
+        pass
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with Clearcase.
+        """
+        return ud.type in ['ccrc']
+
+    def debug(self, msg):
+        logger.debug(1, "ClearCase: %s", msg)
+
+    def urldata_init(self, ud, d):
+        """
+        init ClearCase specific variable within url data
+        """
+        ud.proto = "https"
+        if 'protocol' in ud.parm:
+            ud.proto = ud.parm['protocol']
+        if not ud.proto in ('http', 'https'):
+            raise fetch2.ParameterError("Invalid protocol type", ud.url)
+
+        ud.vob = ''
+        if 'vob' in ud.parm:
+            ud.vob = ud.parm['vob']
+        else:
+            msg = ud.url+": vob must be defined so the fetcher knows what to get."
+            raise MissingParameterError('vob', msg)
+
+        if 'module' in ud.parm:
+            ud.module = ud.parm['module']
+        else:
+            ud.module = ""
+
+        ud.basecmd = d.getVar("FETCHCMD_ccrc") or spawn.find_executable("cleartool") or spawn.find_executable("rcleartool")
+
+        if d.getVar("SRCREV") == "INVALID":
+          raise FetchError("Set a valid SRCREV for the clearcase fetcher in your recipe, e.g. SRCREV = \"/main/LATEST\" or any other label of your choice.")
+
+        ud.label = d.getVar("SRCREV", False)
+        ud.customspec = d.getVar("CCASE_CUSTOM_CONFIG_SPEC")
+
+        ud.server     = "%s://%s%s" % (ud.proto, ud.host, ud.path)
+
+        ud.identifier = "clearcase-%s%s-%s" % ( ud.vob.replace("/", ""),
+                                                ud.module.replace("/", "."),
+                                                ud.label.replace("/", "."))
+
+        ud.viewname         = "%s-view%s" % (ud.identifier, d.getVar("DATETIME", d, True))
+        ud.csname           = "%s-config-spec" % (ud.identifier)
+        ud.ccasedir         = os.path.join(d.getVar("DL_DIR"), ud.type)
+        ud.viewdir          = os.path.join(ud.ccasedir, ud.viewname)
+        ud.configspecfile   = os.path.join(ud.ccasedir, ud.csname)
+        ud.localfile        = "%s.tar.gz" % (ud.identifier)
+
+        self.debug("host            = %s" % ud.host)
+        self.debug("path            = %s" % ud.path)
+        self.debug("server          = %s" % ud.server)
+        self.debug("proto           = %s" % ud.proto)
+        self.debug("type            = %s" % ud.type)
+        self.debug("vob             = %s" % ud.vob)
+        self.debug("module          = %s" % ud.module)
+        self.debug("basecmd         = %s" % ud.basecmd)
+        self.debug("label           = %s" % ud.label)
+        self.debug("ccasedir        = %s" % ud.ccasedir)
+        self.debug("viewdir         = %s" % ud.viewdir)
+        self.debug("viewname        = %s" % ud.viewname)
+        self.debug("configspecfile  = %s" % ud.configspecfile)
+        self.debug("localfile       = %s" % ud.localfile)
+
+        ud.localfile = os.path.join(d.getVar("DL_DIR"), ud.localfile)
+
+    def _build_ccase_command(self, ud, command):
+        """
+        Build up a commandline based on ud
+        command is: mkview, setcs, rmview
+        """
+        options = []
+
+        if "rcleartool" in ud.basecmd:
+            options.append("-server %s" % ud.server)
+
+        basecmd = "%s %s" % (ud.basecmd, command)
+
+        if command is 'mkview':
+            if not "rcleartool" in ud.basecmd:
+                # Cleartool needs a -snapshot view
+                options.append("-snapshot")
+            options.append("-tag %s" % ud.viewname)
+            options.append(ud.viewdir)
+
+        elif command is 'rmview':
+            options.append("-force")
+            options.append("%s" % ud.viewdir)
+
+        elif command is 'setcs':
+            options.append("-overwrite")
+            options.append(ud.configspecfile)
+
+        else:
+            raise FetchError("Invalid ccase command %s" % command)
+
+        ccasecmd = "%s %s" % (basecmd, " ".join(options))
+        self.debug("ccasecmd = %s" % ccasecmd)
+        return ccasecmd
+
+    def _write_configspec(self, ud, d):
+        """
+        Create config spec file (ud.configspecfile) for ccase view
+        """
+        config_spec = ""
+        custom_config_spec = d.getVar("CCASE_CUSTOM_CONFIG_SPEC", d)
+        if custom_config_spec is not None:
+            for line in custom_config_spec.split("\\n"):
+                config_spec += line+"\n"
+            bb.warn("A custom config spec has been set, SRCREV is only relevant for the tarball name.")
+        else:
+            config_spec += "element * CHECKEDOUT\n"
+            config_spec += "element * %s\n" % ud.label
+            config_spec += "load %s%s\n" % (ud.vob, ud.module)
+
+        logger.info("Using config spec: \n%s" % config_spec)
+
+        with open(ud.configspecfile, 'w') as f:
+            f.write(config_spec)
+
+    def _remove_view(self, ud, d):
+        if os.path.exists(ud.viewdir):
+            cmd = self._build_ccase_command(ud, 'rmview');
+            logger.info("cleaning up [VOB=%s label=%s view=%s]", ud.vob, ud.label, ud.viewname)
+            bb.fetch2.check_network_access(d, cmd, ud.url)
+            output = runfetchcmd(cmd, d, workdir=ud.ccasedir)
+            logger.info("rmview output: %s", output)
+
+    def need_update(self, ud, d):
+        if ("LATEST" in ud.label) or (ud.customspec and "LATEST" in ud.customspec):
+            ud.identifier += "-%s" % d.getVar("DATETIME",d, True)
+            return True
+        if os.path.exists(ud.localpath):
+            return False
+        return True
+
+    def supports_srcrev(self):
+        return True
+
+    def sortable_revision(self, ud, d, name):
+        return False, ud.identifier
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        # Make a fresh view
+        bb.utils.mkdirhier(ud.ccasedir)
+        self._write_configspec(ud, d)
+        cmd = self._build_ccase_command(ud, 'mkview')
+        logger.info("creating view [VOB=%s label=%s view=%s]", ud.vob, ud.label, ud.viewname)
+        bb.fetch2.check_network_access(d, cmd, ud.url)
+        try:
+            runfetchcmd(cmd, d)
+        except FetchError as e:
+            if "CRCLI2008E" in e.msg:
+                raise FetchError("%s\n%s\n" % (e.msg, "Call `rcleartool login` in your console to authenticate to the clearcase server before running bitbake."))
+            else:
+                raise e
+
+        # Set configspec: Setting the configspec effectively fetches the files as defined in the configspec
+        cmd = self._build_ccase_command(ud, 'setcs');
+        logger.info("fetching data [VOB=%s label=%s view=%s]", ud.vob, ud.label, ud.viewname)
+        bb.fetch2.check_network_access(d, cmd, ud.url)
+        output = runfetchcmd(cmd, d, workdir=ud.viewdir)
+        logger.info("%s", output)
+
+        # Copy the configspec to the viewdir so we have it in our source tarball later
+        shutil.copyfile(ud.configspecfile, os.path.join(ud.viewdir, ud.csname))
+
+        # Clean clearcase meta-data before tar
+
+        runfetchcmd('tar -czf "%s" .' % (ud.localpath), d, cleanup = [ud.localpath])
+
+        # Clean up so we can create a new view next time
+        self.clean(ud, d);
+
+    def clean(self, ud, d):
+        self._remove_view(ud, d)
+        bb.utils.remove(ud.configspecfile)

bitbake/lib/bb/fetch2/cvs.py

@@ -0,0 +1,172 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementations
+
+Classes for obtaining upstream sources for the
+BitBake build tools.
+
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+#Based on functions from the base bb module, Copyright 2003 Holger Schurig
+#
+
+import os
+import logging
+import bb
+from bb.fetch2 import FetchMethod, FetchError, MissingParameterError, logger
+from bb.fetch2 import runfetchcmd
+
+class Cvs(FetchMethod):
+    """
+    Class to fetch a module or modules from cvs repositories
+    """
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with cvs.
+        """
+        return ud.type in ['cvs']
+
+    def urldata_init(self, ud, d):
+        if not "module" in ud.parm:
+            raise MissingParameterError("module", ud.url)
+        ud.module = ud.parm["module"]
+
+        ud.tag = ud.parm.get('tag', "")
+
+        # Override the default date in certain cases
+        if 'date' in ud.parm:
+            ud.date = ud.parm['date']
+        elif ud.tag:
+            ud.date = ""
+
+        norecurse = ''
+        if 'norecurse' in ud.parm:
+            norecurse = '_norecurse'
+
+        fullpath = ''
+        if 'fullpath' in ud.parm:
+            fullpath = '_fullpath'
+
+        ud.localfile = d.expand('%s_%s_%s_%s%s%s.tar.gz' % (ud.module.replace('/', '.'), ud.host, ud.tag, ud.date, norecurse, fullpath))
+
+    def need_update(self, ud, d):
+        if (ud.date == "now"):
+            return True
+        if not os.path.exists(ud.localpath):
+            return True
+        return False
+
+    def download(self, ud, d):
+
+        method = ud.parm.get('method', 'pserver')
+        localdir = ud.parm.get('localdir', ud.module)
+        cvs_port = ud.parm.get('port', '')
+
+        cvs_rsh = None
+        if method == "ext":
+            if "rsh" in ud.parm:
+                cvs_rsh = ud.parm["rsh"]
+
+        if method == "dir":
+            cvsroot = ud.path
+        else:
+            cvsroot = ":" + method
+            cvsproxyhost = d.getVar('CVS_PROXY_HOST')
+            if cvsproxyhost:
+                cvsroot += ";proxy=" + cvsproxyhost
+            cvsproxyport = d.getVar('CVS_PROXY_PORT')
+            if cvsproxyport:
+                cvsroot += ";proxyport=" + cvsproxyport
+            cvsroot += ":" + ud.user
+            if ud.pswd:
+                cvsroot += ":" + ud.pswd
+            cvsroot += "@" + ud.host + ":" + cvs_port + ud.path
+
+        options = []
+        if 'norecurse' in ud.parm:
+            options.append("-l")
+        if ud.date:
+            # treat YYYYMMDDHHMM specially for CVS
+            if len(ud.date) == 12:
+                options.append("-D \"%s %s:%s UTC\"" % (ud.date[0:8], ud.date[8:10], ud.date[10:12]))
+            else:
+                options.append("-D \"%s UTC\"" % ud.date)
+        if ud.tag:
+            options.append("-r %s" % ud.tag)
+
+        cvsbasecmd = d.getVar("FETCHCMD_cvs")
+        cvscmd = cvsbasecmd + " '-d" + cvsroot + "' co " + " ".join(options) + " " + ud.module
+        cvsupdatecmd = cvsbasecmd + " '-d" + cvsroot + "' update -d -P " + " ".join(options)
+
+        if cvs_rsh:
+            cvscmd = "CVS_RSH=\"%s\" %s" % (cvs_rsh, cvscmd)
+            cvsupdatecmd = "CVS_RSH=\"%s\" %s" % (cvs_rsh, cvsupdatecmd)
+
+        # create module directory
+        logger.debug(2, "Fetch: checking for module directory")
+        pkg = d.getVar('PN')
+        pkgdir = os.path.join(d.getVar('CVSDIR'), pkg)
+        moddir = os.path.join(pkgdir, localdir)
+        workdir = None
+        if os.access(os.path.join(moddir, 'CVS'), os.R_OK):
+            logger.info("Update " + ud.url)
+            bb.fetch2.check_network_access(d, cvsupdatecmd, ud.url)
+            # update sources there
+            workdir = moddir
+            cmd = cvsupdatecmd
+        else:
+            logger.info("Fetch " + ud.url)
+            # check out sources there
+            bb.utils.mkdirhier(pkgdir)
+            workdir = pkgdir
+            logger.debug(1, "Running %s", cvscmd)
+            bb.fetch2.check_network_access(d, cvscmd, ud.url)
+            cmd = cvscmd
+
+        runfetchcmd(cmd, d, cleanup=[moddir], workdir=workdir)
+
+        if not os.access(moddir, os.R_OK):
+            raise FetchError("Directory %s was not readable despite sucessful fetch?!" % moddir, ud.url)
+
+        scmdata = ud.parm.get("scmdata", "")
+        if scmdata == "keep":
+            tar_flags = ""
+        else:
+            tar_flags = "--exclude='CVS'"
+
+        # tar them up to a defined filename
+        workdir = None
+        if 'fullpath' in ud.parm:
+            workdir = pkgdir
+            cmd = "tar %s -czf %s %s" % (tar_flags, ud.localpath, localdir)
+        else:
+            workdir = os.path.dirname(os.path.realpath(moddir))
+            cmd = "tar %s -czf %s %s" % (tar_flags, ud.localpath, os.path.basename(moddir))
+
+        runfetchcmd(cmd, d, cleanup=[ud.localpath], workdir=workdir)
+
+    def clean(self, ud, d):
+        """ Clean CVS Files and tarballs """
+
+        pkg = d.getVar('PN')
+        pkgdir = os.path.join(d.getVar("CVSDIR"), pkg)
+
+        bb.utils.remove(pkgdir, True)
+        bb.utils.remove(ud.localpath)
+

bitbake/lib/bb/fetch2/git.py

@@ -0,0 +1,659 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' git implementation
+
+git fetcher support the SRC_URI with format of:
+SRC_URI = "git://some.host/somepath;OptionA=xxx;OptionB=xxx;..."
+
+Supported SRC_URI options are:
+
+- branch
+   The git branch to retrieve from. The default is "master"
+
+   This option also supports multiple branch fetching, with branches
+   separated by commas.  In multiple branches case, the name option
+   must have the same number of names to match the branches, which is
+   used to specify the SRC_REV for the branch
+   e.g:
+   SRC_URI="git://some.host/somepath;branch=branchX,branchY;name=nameX,nameY"
+   SRCREV_nameX = "xxxxxxxxxxxxxxxxxxxx"
+   SRCREV_nameY = "YYYYYYYYYYYYYYYYYYYY"
+
+- tag
+    The git tag to retrieve. The default is "master"
+
+- protocol
+   The method to use to access the repository. Common options are "git",
+   "http", "https", "file", "ssh" and "rsync". The default is "git".
+
+- rebaseable
+   rebaseable indicates that the upstream git repo may rebase in the future,
+   and current revision may disappear from upstream repo. This option will
+   remind fetcher to preserve local cache carefully for future use.
+   The default value is "0", set rebaseable=1 for rebaseable git repo.
+
+- nocheckout
+   Don't checkout source code when unpacking. set this option for the recipe
+   who has its own routine to checkout code.
+   The default is "0", set nocheckout=1 if needed.
+
+- bareclone
+   Create a bare clone of the source code and don't checkout the source code
+   when unpacking. Set this option for the recipe who has its own routine to
+   checkout code and tracking branch requirements.
+   The default is "0", set bareclone=1 if needed.
+
+- nobranch
+   Don't check the SHA validation for branch. set this option for the recipe
+   referring to commit which is valid in tag instead of branch.
+   The default is "0", set nobranch=1 if needed.
+
+- usehead
+   For local git:// urls to use the current branch HEAD as the revision for use with
+   AUTOREV. Implies nobranch.
+
+"""
+
+#Copyright (C) 2005 Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import collections
+import errno
+import fnmatch
+import os
+import re
+import subprocess
+import tempfile
+import bb
+import bb.progress
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+
+
+class GitProgressHandler(bb.progress.LineFilterProgressHandler):
+    """Extract progress information from git output"""
+    def __init__(self, d):
+        self._buffer = ''
+        self._count = 0
+        super(GitProgressHandler, self).__init__(d)
+        # Send an initial progress event so the bar gets shown
+        self._fire_progress(-1)
+
+    def write(self, string):
+        self._buffer += string
+        stages = ['Counting objects', 'Compressing objects', 'Receiving objects', 'Resolving deltas']
+        stage_weights = [0.2, 0.05, 0.5, 0.25]
+        stagenum = 0
+        for i, stage in reversed(list(enumerate(stages))):
+            if stage in self._buffer:
+                stagenum = i
+                self._buffer = ''
+                break
+        self._status = stages[stagenum]
+        percs = re.findall(r'(\d+)%', string)
+        if percs:
+            progress = int(round((int(percs[-1]) * stage_weights[stagenum]) + (sum(stage_weights[:stagenum]) * 100)))
+            rates = re.findall(r'([\d.]+ [a-zA-Z]*/s+)', string)
+            if rates:
+                rate = rates[-1]
+            else:
+                rate = None
+            self.update(progress, rate)
+        else:
+            if stagenum == 0:
+                percs = re.findall(r': (\d+)', string)
+                if percs:
+                    count = int(percs[-1])
+                    if count > self._count:
+                        self._count = count
+                        self._fire_progress(-count)
+        super(GitProgressHandler, self).write(string)
+
+
+class Git(FetchMethod):
+    """Class to fetch a module or modules from git repositories"""
+    def init(self, d):
+        pass
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with git.
+        """
+        return ud.type in ['git']
+
+    def supports_checksum(self, urldata):
+        return False
+
+    def urldata_init(self, ud, d):
+        """
+        init git specific variable within url data
+        so that the git method like latest_revision() can work
+        """
+        if 'protocol' in ud.parm:
+            ud.proto = ud.parm['protocol']
+        elif not ud.host:
+            ud.proto = 'file'
+        else:
+            ud.proto = "git"
+
+        if not ud.proto in ('git', 'file', 'ssh', 'http', 'https', 'rsync'):
+            raise bb.fetch2.ParameterError("Invalid protocol type", ud.url)
+
+        ud.nocheckout = ud.parm.get("nocheckout","0") == "1"
+
+        ud.rebaseable = ud.parm.get("rebaseable","0") == "1"
+
+        ud.nobranch = ud.parm.get("nobranch","0") == "1"
+
+        # usehead implies nobranch
+        ud.usehead = ud.parm.get("usehead","0") == "1"
+        if ud.usehead:
+            if ud.proto != "file":
+                 raise bb.fetch2.ParameterError("The usehead option is only for use with local ('protocol=file') git repositories", ud.url)
+            ud.nobranch = 1
+
+        # bareclone implies nocheckout
+        ud.bareclone = ud.parm.get("bareclone","0") == "1"
+        if ud.bareclone:
+            ud.nocheckout = 1
+  
+        ud.unresolvedrev = {}
+        branches = ud.parm.get("branch", "master").split(',')
+        if len(branches) != len(ud.names):
+            raise bb.fetch2.ParameterError("The number of name and branch parameters is not balanced", ud.url)
+
+        ud.cloneflags = "-s -n"
+        if ud.bareclone:
+            ud.cloneflags += " --mirror"
+
+        ud.shallow = d.getVar("BB_GIT_SHALLOW") == "1"
+        ud.shallow_extra_refs = (d.getVar("BB_GIT_SHALLOW_EXTRA_REFS") or "").split()
+
+        depth_default = d.getVar("BB_GIT_SHALLOW_DEPTH")
+        if depth_default is not None:
+            try:
+                depth_default = int(depth_default or 0)
+            except ValueError:
+                raise bb.fetch2.FetchError("Invalid depth for BB_GIT_SHALLOW_DEPTH: %s" % depth_default)
+            else:
+                if depth_default < 0:
+                    raise bb.fetch2.FetchError("Invalid depth for BB_GIT_SHALLOW_DEPTH: %s" % depth_default)
+        else:
+            depth_default = 1
+        ud.shallow_depths = collections.defaultdict(lambda: depth_default)
+
+        revs_default = d.getVar("BB_GIT_SHALLOW_REVS", True)
+        ud.shallow_revs = []
+        ud.branches = {}
+        for pos, name in enumerate(ud.names):
+            branch = branches[pos]
+            ud.branches[name] = branch
+            ud.unresolvedrev[name] = branch
+
+            shallow_depth = d.getVar("BB_GIT_SHALLOW_DEPTH_%s" % name)
+            if shallow_depth is not None:
+                try:
+                    shallow_depth = int(shallow_depth or 0)
+                except ValueError:
+                    raise bb.fetch2.FetchError("Invalid depth for BB_GIT_SHALLOW_DEPTH_%s: %s" % (name, shallow_depth))
+                else:
+                    if shallow_depth < 0:
+                        raise bb.fetch2.FetchError("Invalid depth for BB_GIT_SHALLOW_DEPTH_%s: %s" % (name, shallow_depth))
+                    ud.shallow_depths[name] = shallow_depth
+
+            revs = d.getVar("BB_GIT_SHALLOW_REVS_%s" % name)
+            if revs is not None:
+                ud.shallow_revs.extend(revs.split())
+            elif revs_default is not None:
+                ud.shallow_revs.extend(revs_default.split())
+
+        if (ud.shallow and
+                not ud.shallow_revs and
+                all(ud.shallow_depths[n] == 0 for n in ud.names)):
+            # Shallow disabled for this URL
+            ud.shallow = False
+
+        if ud.usehead:
+            ud.unresolvedrev['default'] = 'HEAD'
+
+        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c core.fsyncobjectfiles=0"
+
+        write_tarballs = d.getVar("BB_GENERATE_MIRROR_TARBALLS") or "0"
+        ud.write_tarballs = write_tarballs != "0" or ud.rebaseable
+        ud.write_shallow_tarballs = (d.getVar("BB_GENERATE_SHALLOW_TARBALLS") or write_tarballs) != "0"
+
+        ud.setup_revisions(d)
+
+        for name in ud.names:
+            # Ensure anything that doesn't look like a sha256 checksum/revision is translated into one
+            if not ud.revisions[name] or len(ud.revisions[name]) != 40  or (False in [c in "abcdef0123456789" for c in ud.revisions[name]]):
+                if ud.revisions[name]:
+                    ud.unresolvedrev[name] = ud.revisions[name]
+                ud.revisions[name] = self.latest_revision(ud, d, name)
+
+        gitsrcname = '%s%s' % (ud.host.replace(':', '.'), ud.path.replace('/', '.').replace('*', '.'))
+        if gitsrcname.startswith('.'):
+            gitsrcname = gitsrcname[1:]
+
+        # for rebaseable git repo, it is necessary to keep mirror tar ball
+        # per revision, so that even the revision disappears from the
+        # upstream repo in the future, the mirror will remain intact and still
+        # contains the revision
+        if ud.rebaseable:
+            for name in ud.names:
+                gitsrcname = gitsrcname + '_' + ud.revisions[name]
+
+        dl_dir = d.getVar("DL_DIR")
+        gitdir = d.getVar("GITDIR") or (dl_dir + "/git2/")
+        ud.clonedir = os.path.join(gitdir, gitsrcname)
+        ud.localfile = ud.clonedir
+
+        mirrortarball = 'git2_%s.tar.gz' % gitsrcname
+        ud.fullmirror = os.path.join(dl_dir, mirrortarball)
+        ud.mirrortarballs = [mirrortarball]
+        if ud.shallow:
+            tarballname = gitsrcname
+            if ud.bareclone:
+                tarballname = "%s_bare" % tarballname
+
+            if ud.shallow_revs:
+                tarballname = "%s_%s" % (tarballname, "_".join(sorted(ud.shallow_revs)))
+
+            for name, revision in sorted(ud.revisions.items()):
+                tarballname = "%s_%s" % (tarballname, ud.revisions[name][:7])
+                depth = ud.shallow_depths[name]
+                if depth:
+                    tarballname = "%s-%s" % (tarballname, depth)
+
+            shallow_refs = []
+            if not ud.nobranch:
+                shallow_refs.extend(ud.branches.values())
+            if ud.shallow_extra_refs:
+                shallow_refs.extend(r.replace('refs/heads/', '').replace('*', 'ALL') for r in ud.shallow_extra_refs)
+            if shallow_refs:
+                tarballname = "%s_%s" % (tarballname, "_".join(sorted(shallow_refs)).replace('/', '.'))
+
+            fetcher = self.__class__.__name__.lower()
+            ud.shallowtarball = '%sshallow_%s.tar.gz' % (fetcher, tarballname)
+            ud.fullshallow = os.path.join(dl_dir, ud.shallowtarball)
+            ud.mirrortarballs.insert(0, ud.shallowtarball)
+
+    def localpath(self, ud, d):
+        return ud.clonedir
+
+    def need_update(self, ud, d):
+        if not os.path.exists(ud.clonedir):
+            return True
+        for name in ud.names:
+            if not self._contains_ref(ud, d, name, ud.clonedir):
+                return True
+        if ud.shallow and ud.write_shallow_tarballs and not os.path.exists(ud.fullshallow):
+            return True
+        if ud.write_tarballs and not os.path.exists(ud.fullmirror):
+            return True
+        return False
+
+    def try_premirror(self, ud, d):
+        # If we don't do this, updating an existing checkout with only premirrors
+        # is not possible
+        if d.getVar("BB_FETCH_PREMIRRORONLY") is not None:
+            return True
+        if os.path.exists(ud.clonedir):
+            return False
+        return True
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        no_clone = not os.path.exists(ud.clonedir)
+        need_update = no_clone or self.need_update(ud, d)
+
+        # A current clone is preferred to either tarball, a shallow tarball is
+        # preferred to an out of date clone, and a missing clone will use
+        # either tarball.
+        if ud.shallow and os.path.exists(ud.fullshallow) and need_update:
+            ud.localpath = ud.fullshallow
+            return
+        elif os.path.exists(ud.fullmirror) and no_clone:
+            bb.utils.mkdirhier(ud.clonedir)
+            runfetchcmd("tar -xzf %s" % ud.fullmirror, d, workdir=ud.clonedir)
+
+        repourl = self._get_repo_url(ud)
+
+        # If the repo still doesn't exist, fallback to cloning it
+        if not os.path.exists(ud.clonedir):
+            # We do this since git will use a "-l" option automatically for local urls where possible
+            if repourl.startswith("file://"):
+                repourl = repourl[7:]
+            clone_cmd = "LANG=C %s clone --bare --mirror %s %s --progress" % (ud.basecmd, repourl, ud.clonedir)
+            if ud.proto.lower() != 'file':
+                bb.fetch2.check_network_access(d, clone_cmd, ud.url)
+            progresshandler = GitProgressHandler(d)
+            runfetchcmd(clone_cmd, d, log=progresshandler)
+
+        # Update the checkout if needed
+        needupdate = False
+        for name in ud.names:
+            if not self._contains_ref(ud, d, name, ud.clonedir):
+                needupdate = True
+        if needupdate:
+            try: 
+                runfetchcmd("%s remote rm origin" % ud.basecmd, d, workdir=ud.clonedir)
+            except bb.fetch2.FetchError:
+                logger.debug(1, "No Origin")
+
+            runfetchcmd("%s remote add --mirror=fetch origin %s" % (ud.basecmd, repourl), d, workdir=ud.clonedir)
+            fetch_cmd = "LANG=C %s fetch -f --prune --progress %s refs/*:refs/*" % (ud.basecmd, repourl)
+            if ud.proto.lower() != 'file':
+                bb.fetch2.check_network_access(d, fetch_cmd, ud.url)
+            progresshandler = GitProgressHandler(d)
+            runfetchcmd(fetch_cmd, d, log=progresshandler, workdir=ud.clonedir)
+            runfetchcmd("%s prune-packed" % ud.basecmd, d, workdir=ud.clonedir)
+            runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d, workdir=ud.clonedir)
+            try:
+                os.unlink(ud.fullmirror)
+            except OSError as exc:
+                if exc.errno != errno.ENOENT:
+                    raise
+        for name in ud.names:
+            if not self._contains_ref(ud, d, name, ud.clonedir):
+                raise bb.fetch2.FetchError("Unable to find revision %s in branch %s even from upstream" % (ud.revisions[name], ud.branches[name]))
+
+    def build_mirror_data(self, ud, d):
+        if ud.shallow and ud.write_shallow_tarballs:
+            if not os.path.exists(ud.fullshallow):
+                if os.path.islink(ud.fullshallow):
+                    os.unlink(ud.fullshallow)
+                tempdir = tempfile.mkdtemp(dir=d.getVar('DL_DIR'))
+                shallowclone = os.path.join(tempdir, 'git')
+                try:
+                    self.clone_shallow_local(ud, shallowclone, d)
+
+                    logger.info("Creating tarball of git repository")
+                    runfetchcmd("tar -czf %s ." % ud.fullshallow, d, workdir=shallowclone)
+                    runfetchcmd("touch %s.done" % ud.fullshallow, d)
+                finally:
+                    bb.utils.remove(tempdir, recurse=True)
+        elif ud.write_tarballs and not os.path.exists(ud.fullmirror):
+            if os.path.islink(ud.fullmirror):
+                os.unlink(ud.fullmirror)
+
+            logger.info("Creating tarball of git repository")
+            runfetchcmd("tar -czf %s ." % ud.fullmirror, d, workdir=ud.clonedir)
+            runfetchcmd("touch %s.done" % ud.fullmirror, d)
+
+    def clone_shallow_local(self, ud, dest, d):
+        """Clone the repo and make it shallow.
+
+        The upstream url of the new clone isn't set at this time, as it'll be
+        set correctly when unpacked."""
+        runfetchcmd("%s clone %s %s %s" % (ud.basecmd, ud.cloneflags, ud.clonedir, dest), d)
+
+        to_parse, shallow_branches = [], []
+        for name in ud.names:
+            revision = ud.revisions[name]
+            depth = ud.shallow_depths[name]
+            if depth:
+                to_parse.append('%s~%d^{}' % (revision, depth - 1))
+
+            # For nobranch, we need a ref, otherwise the commits will be
+            # removed, and for non-nobranch, we truncate the branch to our
+            # srcrev, to avoid keeping unnecessary history beyond that.
+            branch = ud.branches[name]
+            if ud.nobranch:
+                ref = "refs/shallow/%s" % name
+            elif ud.bareclone:
+                ref = "refs/heads/%s" % branch
+            else:
+                ref = "refs/remotes/origin/%s" % branch
+
+            shallow_branches.append(ref)
+            runfetchcmd("%s update-ref %s %s" % (ud.basecmd, ref, revision), d, workdir=dest)
+
+        # Map srcrev+depths to revisions
+        parsed_depths = runfetchcmd("%s rev-parse %s" % (ud.basecmd, " ".join(to_parse)), d, workdir=dest)
+
+        # Resolve specified revisions
+        parsed_revs = runfetchcmd("%s rev-parse %s" % (ud.basecmd, " ".join('"%s^{}"' % r for r in ud.shallow_revs)), d, workdir=dest)
+        shallow_revisions = parsed_depths.splitlines() + parsed_revs.splitlines()
+
+        # Apply extra ref wildcards
+        all_refs = runfetchcmd('%s for-each-ref "--format=%%(refname)"' % ud.basecmd,
+                               d, workdir=dest).splitlines()
+        for r in ud.shallow_extra_refs:
+            if not ud.bareclone:
+                r = r.replace('refs/heads/', 'refs/remotes/origin/')
+
+            if '*' in r:
+                matches = filter(lambda a: fnmatch.fnmatchcase(a, r), all_refs)
+                shallow_branches.extend(matches)
+            else:
+                shallow_branches.append(r)
+
+        # Make the repository shallow
+        shallow_cmd = ['git', 'make-shallow', '-s']
+        for b in shallow_branches:
+            shallow_cmd.append('-r')
+            shallow_cmd.append(b)
+        shallow_cmd.extend(shallow_revisions)
+        runfetchcmd(subprocess.list2cmdline(shallow_cmd), d, workdir=dest)
+
+    def unpack(self, ud, destdir, d):
+        """ unpack the downloaded src to destdir"""
+
+        subdir = ud.parm.get("subpath", "")
+        if subdir != "":
+            readpathspec = ":%s" % subdir
+            def_destsuffix = "%s/" % os.path.basename(subdir.rstrip('/'))
+        else:
+            readpathspec = ""
+            def_destsuffix = "git/"
+
+        destsuffix = ud.parm.get("destsuffix", def_destsuffix)
+        destdir = ud.destdir = os.path.join(destdir, destsuffix)
+        if os.path.exists(destdir):
+            bb.utils.prunedir(destdir)
+
+        if ud.shallow and (not os.path.exists(ud.clonedir) or self.need_update(ud, d)):
+            bb.utils.mkdirhier(destdir)
+            runfetchcmd("tar -xzf %s" % ud.fullshallow, d, workdir=destdir)
+        else:
+            runfetchcmd("%s clone %s %s/ %s" % (ud.basecmd, ud.cloneflags, ud.clonedir, destdir), d)
+
+        repourl = self._get_repo_url(ud)
+        runfetchcmd("%s remote set-url origin %s" % (ud.basecmd, repourl), d, workdir=destdir)
+        if not ud.nocheckout:
+            if subdir != "":
+                runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.revisions[ud.names[0]], readpathspec), d,
+                            workdir=destdir)
+                runfetchcmd("%s checkout-index -q -f -a" % ud.basecmd, d, workdir=destdir)
+            elif not ud.nobranch:
+                branchname =  ud.branches[ud.names[0]]
+                runfetchcmd("%s checkout -B %s %s" % (ud.basecmd, branchname, \
+                            ud.revisions[ud.names[0]]), d, workdir=destdir)
+                runfetchcmd("%s branch %s --set-upstream-to origin/%s" % (ud.basecmd, branchname, \
+                            branchname), d, workdir=destdir)
+            else:
+                runfetchcmd("%s checkout %s" % (ud.basecmd, ud.revisions[ud.names[0]]), d, workdir=destdir)
+
+        return True
+
+    def clean(self, ud, d):
+        """ clean the git directory """
+
+        bb.utils.remove(ud.localpath, True)
+        bb.utils.remove(ud.fullmirror)
+        bb.utils.remove(ud.fullmirror + ".done")
+
+    def supports_srcrev(self):
+        return True
+
+    def _contains_ref(self, ud, d, name, wd):
+        cmd = ""
+        if ud.nobranch:
+            cmd = "%s log --pretty=oneline -n 1 %s -- 2> /dev/null | wc -l" % (
+                ud.basecmd, ud.revisions[name])
+        else:
+            cmd =  "%s branch --contains %s --list %s 2> /dev/null | wc -l" % (
+                ud.basecmd, ud.revisions[name], ud.branches[name])
+        try:
+            output = runfetchcmd(cmd, d, quiet=True, workdir=wd)
+        except bb.fetch2.FetchError:
+            return False
+        if len(output.split()) > 1:
+            raise bb.fetch2.FetchError("The command '%s' gave output with more then 1 line unexpectedly, output: '%s'" % (cmd, output))
+        return output.split()[0] != "0"
+
+    def _get_repo_url(self, ud):
+        """
+        Return the repository URL
+        """
+        if ud.user:
+            username = ud.user + '@'
+        else:
+            username = ""
+        return "%s://%s%s%s" % (ud.proto, username, ud.host, ud.path)
+
+    def _revision_key(self, ud, d, name):
+        """
+        Return a unique key for the url
+        """
+        return "git:" + ud.host + ud.path.replace('/', '.') + ud.unresolvedrev[name]
+
+    def _lsremote(self, ud, d, search):
+        """
+        Run git ls-remote with the specified search string
+        """
+        # Prevent recursion e.g. in OE if SRCPV is in PV, PV is in WORKDIR,
+        # and WORKDIR is in PATH (as a result of RSS), our call to
+        # runfetchcmd() exports PATH so this function will get called again (!)
+        # In this scenario the return call of the function isn't actually
+        # important - WORKDIR isn't needed in PATH to call git ls-remote
+        # anyway.
+        if d.getVar('_BB_GIT_IN_LSREMOTE', False):
+            return ''
+        d.setVar('_BB_GIT_IN_LSREMOTE', '1')
+        try:
+            repourl = self._get_repo_url(ud)
+            cmd = "%s ls-remote %s %s" % \
+                (ud.basecmd, repourl, search)
+            if ud.proto.lower() != 'file':
+                bb.fetch2.check_network_access(d, cmd, repourl)
+            output = runfetchcmd(cmd, d, True)
+            if not output:
+                raise bb.fetch2.FetchError("The command %s gave empty output unexpectedly" % cmd, ud.url)
+        finally:
+            d.delVar('_BB_GIT_IN_LSREMOTE')
+        return output
+
+    def _latest_revision(self, ud, d, name):
+        """
+        Compute the HEAD revision for the url
+        """
+        output = self._lsremote(ud, d, "")
+        # Tags of the form ^{} may not work, need to fallback to other form
+        if ud.unresolvedrev[name][:5] == "refs/" or ud.usehead:
+            head = ud.unresolvedrev[name]
+            tag = ud.unresolvedrev[name]
+        else:
+            head = "refs/heads/%s" % ud.unresolvedrev[name]
+            tag = "refs/tags/%s" % ud.unresolvedrev[name]
+        for s in [head, tag + "^{}", tag]:
+            for l in output.strip().split('\n'):
+                sha1, ref = l.split()
+                if s == ref:
+                    return sha1
+        raise bb.fetch2.FetchError("Unable to resolve '%s' in upstream git repository in git ls-remote output for %s" % \
+            (ud.unresolvedrev[name], ud.host+ud.path))
+
+    def latest_versionstring(self, ud, d):
+        """
+        Compute the latest release name like "x.y.x" in "x.y.x+gitHASH"
+        by searching through the tags output of ls-remote, comparing
+        versions and returning the highest match.
+        """
+        pupver = ('', '')
+
+        tagregex = re.compile(d.getVar('UPSTREAM_CHECK_GITTAGREGEX') or "(?P<pver>([0-9][\.|_]?)+)")
+        try:
+            output = self._lsremote(ud, d, "refs/tags/*")
+        except bb.fetch2.FetchError or bb.fetch2.NetworkAccess:
+            return pupver
+
+        verstring = ""
+        revision = ""
+        for line in output.split("\n"):
+            if not line:
+                break
+
+            tag_head = line.split("/")[-1]
+            # Ignore non-released branches
+            m = re.search("(alpha|beta|rc|final)+", tag_head)
+            if m:
+                continue
+
+            # search for version in the line
+            tag = tagregex.search(tag_head)
+            if tag == None:
+                continue
+
+            tag = tag.group('pver')
+            tag = tag.replace("_", ".")
+
+            if verstring and bb.utils.vercmp(("0", tag, ""), ("0", verstring, "")) < 0:
+                continue
+
+            verstring = tag
+            revision = line.split()[0]
+            pupver = (verstring, revision)
+
+        return pupver
+
+    def _build_revision(self, ud, d, name):
+        return ud.revisions[name]
+
+    def gitpkgv_revision(self, ud, d, name):
+        """
+        Return a sortable revision number by counting commits in the history
+        Based on gitpkgv.bblass in meta-openembedded
+        """
+        rev = self._build_revision(ud, d, name)
+        localpath = ud.localpath
+        rev_file = os.path.join(localpath, "oe-gitpkgv_" + rev)
+        if not os.path.exists(localpath):
+            commits = None
+        else:
+            if not os.path.exists(rev_file) or not os.path.getsize(rev_file):
+                from pipes import quote
+                commits = bb.fetch2.runfetchcmd(
+                        "git rev-list %s -- | wc -l" % quote(rev),
+                        d, quiet=True).strip().lstrip('0')
+                if commits:
+                    open(rev_file, "w").write("%d\n" % int(commits))
+            else:
+                commits = open(rev_file, "r").readline(128).strip()
+        if commits:
+            return False, "%s+%s" % (commits, rev[:7])
+        else:
+            return True, str(rev)
+
+    def checkstatus(self, fetch, ud, d):
+        try:
+            self._lsremote(ud, d, "")
+            return True
+        except bb.fetch2.FetchError:
+            return False

bitbake/lib/bb/fetch2/gitannex.py

@@ -0,0 +1,91 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' git annex implementation
+"""
+
+# Copyright (C) 2014 Otavio Salvador
+# Copyright (C) 2014 O.S. Systems Software LTDA.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import bb
+from   bb.fetch2.git import Git
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+
+class GitANNEX(Git):
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with git.
+        """
+        return ud.type in ['gitannex']
+
+    def urldata_init(self, ud, d):
+        super(GitANNEX, self).urldata_init(ud, d)
+        if ud.shallow:
+            ud.shallow_extra_refs += ['refs/heads/git-annex', 'refs/heads/synced/*']
+
+    def uses_annex(self, ud, d, wd):
+        for name in ud.names:
+            try:
+                runfetchcmd("%s rev-list git-annex" % (ud.basecmd), d, quiet=True, workdir=wd)
+                return True
+            except bb.fetch.FetchError:
+                pass
+
+        return False
+
+    def update_annex(self, ud, d, wd):
+        try:
+            runfetchcmd("%s annex get --all" % (ud.basecmd), d, quiet=True, workdir=wd)
+        except bb.fetch.FetchError:
+            return False
+        runfetchcmd("chmod u+w -R %s/annex" % (ud.clonedir), d, quiet=True, workdir=wd)
+
+        return True
+
+    def download(self, ud, d):
+        Git.download(self, ud, d)
+
+        if not ud.shallow or ud.localpath != ud.fullshallow:
+            if self.uses_annex(ud, d, ud.clonedir):
+                self.update_annex(ud, d, ud.clonedir)
+
+    def clone_shallow_local(self, ud, dest, d):
+        super(GitANNEX, self).clone_shallow_local(ud, dest, d)
+
+        try:
+            runfetchcmd("%s annex init" % ud.basecmd, d, workdir=dest)
+        except bb.fetch.FetchError:
+            pass
+
+        if self.uses_annex(ud, d, dest):
+            runfetchcmd("%s annex get" % ud.basecmd, d, workdir=dest)
+            runfetchcmd("chmod u+w -R %s/.git/annex" % (dest), d, quiet=True, workdir=dest)
+
+    def unpack(self, ud, destdir, d):
+        Git.unpack(self, ud, destdir, d)
+
+        try:
+            runfetchcmd("%s annex init" % (ud.basecmd), d, workdir=ud.destdir)
+        except bb.fetch.FetchError:
+            pass
+
+        annex = self.uses_annex(ud, d, ud.destdir)
+        if annex:
+            runfetchcmd("%s annex get" % (ud.basecmd), d, workdir=ud.destdir)
+            runfetchcmd("chmod u+w -R %s/.git/annex" % (ud.destdir), d, quiet=True, workdir=ud.destdir)
+

bitbake/lib/bb/fetch2/gitsm.py

@@ -0,0 +1,135 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' git submodules implementation
+
+Inherits from and extends the Git fetcher to retrieve submodules of a git repository
+after cloning.
+
+SRC_URI = "gitsm://<see Git fetcher for syntax>"
+
+See the Git fetcher, git://, for usage documentation.
+
+NOTE: Switching a SRC_URI from "git://" to "gitsm://" requires a clean of your recipe.
+
+"""
+
+# Copyright (C) 2013 Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import bb
+from   bb.fetch2.git import Git
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+
+class GitSM(Git):
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with git.
+        """
+        return ud.type in ['gitsm']
+
+    def uses_submodules(self, ud, d, wd):
+        for name in ud.names:
+            try:
+                runfetchcmd("%s show %s:.gitmodules" % (ud.basecmd, ud.revisions[name]), d, quiet=True, workdir=wd)
+                return True
+            except bb.fetch.FetchError:
+                pass
+        return False
+
+    def _set_relative_paths(self, repopath):
+        """
+        Fix submodule paths to be relative instead of absolute,
+        so that when we move the repo it doesn't break
+        (In Git 1.7.10+ this is done automatically)
+        """
+        submodules = []
+        with open(os.path.join(repopath, '.gitmodules'), 'r') as f:
+            for line in f.readlines():
+                if line.startswith('[submodule'):
+                    submodules.append(line.split('"')[1])
+
+        for module in submodules:
+            repo_conf = os.path.join(repopath, module, '.git')
+            if os.path.exists(repo_conf):
+                with open(repo_conf, 'r') as f:
+                    lines = f.readlines()
+                newpath = ''
+                for i, line in enumerate(lines):
+                    if line.startswith('gitdir:'):
+                        oldpath = line.split(': ')[-1].rstrip()
+                        if oldpath.startswith('/'):
+                            newpath = '../' * (module.count('/') + 1) + '.git/modules/' + module
+                            lines[i] = 'gitdir: %s\n' % newpath
+                            break
+                if newpath:
+                    with open(repo_conf, 'w') as f:
+                        for line in lines:
+                            f.write(line)
+
+            repo_conf2 = os.path.join(repopath, '.git', 'modules', module, 'config')
+            if os.path.exists(repo_conf2):
+                with open(repo_conf2, 'r') as f:
+                    lines = f.readlines()
+                newpath = ''
+                for i, line in enumerate(lines):
+                    if line.lstrip().startswith('worktree = '):
+                        oldpath = line.split(' = ')[-1].rstrip()
+                        if oldpath.startswith('/'):
+                            newpath = '../' * (module.count('/') + 3) + module
+                            lines[i] = '\tworktree = %s\n' % newpath
+                            break
+                if newpath:
+                    with open(repo_conf2, 'w') as f:
+                        for line in lines:
+                            f.write(line)
+
+    def update_submodules(self, ud, d):
+        # We have to convert bare -> full repo, do the submodule bit, then convert back
+        tmpclonedir = ud.clonedir + ".tmp"
+        gitdir = tmpclonedir + os.sep + ".git"
+        bb.utils.remove(tmpclonedir, True)
+        os.mkdir(tmpclonedir)
+        os.rename(ud.clonedir, gitdir)
+        runfetchcmd("sed " + gitdir + "/config -i -e 's/bare.*=.*true/bare = false/'", d)
+        runfetchcmd(ud.basecmd + " reset --hard", d, workdir=tmpclonedir)
+        runfetchcmd(ud.basecmd + " checkout -f " + ud.revisions[ud.names[0]], d, workdir=tmpclonedir)
+        runfetchcmd(ud.basecmd + " submodule update --init --recursive", d, workdir=tmpclonedir)
+        self._set_relative_paths(tmpclonedir)
+        runfetchcmd("sed " + gitdir + "/config -i -e 's/bare.*=.*false/bare = true/'", d, workdir=tmpclonedir)
+        os.rename(gitdir, ud.clonedir,)
+        bb.utils.remove(tmpclonedir, True)
+
+    def download(self, ud, d):
+        Git.download(self, ud, d)
+
+        if not ud.shallow or ud.localpath != ud.fullshallow:
+            submodules = self.uses_submodules(ud, d, ud.clonedir)
+            if submodules:
+                self.update_submodules(ud, d)
+
+    def clone_shallow_local(self, ud, dest, d):
+        super(GitSM, self).clone_shallow_local(ud, dest, d)
+
+        runfetchcmd('cp -fpPRH "%s/modules" "%s/"' % (ud.clonedir, os.path.join(dest, '.git')), d)
+
+    def unpack(self, ud, destdir, d):
+        Git.unpack(self, ud, destdir, d)
+
+        if self.uses_submodules(ud, d, ud.destdir):
+            runfetchcmd(ud.basecmd + " checkout " + ud.revisions[ud.names[0]], d, workdir=ud.destdir)
+            runfetchcmd(ud.basecmd + " submodule update --init --recursive", d, workdir=ud.destdir)

bitbake/lib/bb/fetch2/hg.py

@@ -0,0 +1,270 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementation for mercurial DRCS (hg).
+
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2004        Marcin Juszkiewicz
+# Copyright (C) 2007        Robert Schuster
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import sys
+import logging
+import bb
+import errno
+from bb.fetch2 import FetchMethod
+from bb.fetch2 import FetchError
+from bb.fetch2 import MissingParameterError
+from bb.fetch2 import runfetchcmd
+from bb.fetch2 import logger
+
+class Hg(FetchMethod):
+    """Class to fetch from mercurial repositories"""
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with mercurial.
+        """
+        return ud.type in ['hg']
+
+    def supports_checksum(self, urldata):
+        """
+        Don't require checksums for local archives created from
+        repository checkouts.
+        """ 
+        return False
+
+    def urldata_init(self, ud, d):
+        """
+        init hg specific variable within url data
+        """
+        if not "module" in ud.parm:
+            raise MissingParameterError('module', ud.url)
+
+        ud.module = ud.parm["module"]
+
+        if 'protocol' in ud.parm:
+            ud.proto = ud.parm['protocol']
+        elif not ud.host:
+            ud.proto = 'file'
+        else:
+            ud.proto = "hg"
+
+        ud.setup_revisions(d)
+
+        if 'rev' in ud.parm:
+            ud.revision = ud.parm['rev']
+        elif not ud.revision:
+            ud.revision = self.latest_revision(ud, d)
+
+        # Create paths to mercurial checkouts
+        hgsrcname = '%s_%s_%s' % (ud.module.replace('/', '.'), \
+                            ud.host, ud.path.replace('/', '.'))
+        mirrortarball = 'hg_%s.tar.gz' % hgsrcname
+        ud.fullmirror = os.path.join(d.getVar("DL_DIR"), mirrortarball)
+        ud.mirrortarballs = [mirrortarball]
+
+        hgdir = d.getVar("HGDIR") or (d.getVar("DL_DIR") + "/hg/")
+        ud.pkgdir = os.path.join(hgdir, hgsrcname)
+        ud.moddir = os.path.join(ud.pkgdir, ud.module)
+        ud.localfile = ud.moddir
+        ud.basecmd = d.getVar("FETCHCMD_hg") or "/usr/bin/env hg"
+
+        ud.write_tarballs = d.getVar("BB_GENERATE_MIRROR_TARBALLS")
+
+    def need_update(self, ud, d):
+        revTag = ud.parm.get('rev', 'tip')
+        if revTag == "tip":
+            return True
+        if not os.path.exists(ud.localpath):
+            return True
+        return False
+
+    def try_premirror(self, ud, d):
+        # If we don't do this, updating an existing checkout with only premirrors
+        # is not possible
+        if d.getVar("BB_FETCH_PREMIRRORONLY") is not None:
+            return True
+        if os.path.exists(ud.moddir):
+            return False
+        return True
+
+    def _buildhgcommand(self, ud, d, command):
+        """
+        Build up an hg commandline based on ud
+        command is "fetch", "update", "info"
+        """
+
+        proto = ud.parm.get('protocol', 'http')
+
+        host = ud.host
+        if proto == "file":
+            host = "/"
+            ud.host = "localhost"
+
+        if not ud.user:
+            hgroot = host + ud.path
+        else:
+            if ud.pswd:
+                hgroot = ud.user + ":" + ud.pswd + "@" + host + ud.path
+            else:
+                hgroot = ud.user + "@" + host + ud.path
+
+        if command == "info":
+            return "%s identify -i %s://%s/%s" % (ud.basecmd, proto, hgroot, ud.module)
+
+        options = [];
+
+        # Don't specify revision for the fetch; clone the entire repo.
+        # This avoids an issue if the specified revision is a tag, because
+        # the tag actually exists in the specified revision + 1, so it won't
+        # be available when used in any successive commands.
+        if ud.revision and command != "fetch":
+            options.append("-r %s" % ud.revision)
+
+        if command == "fetch":
+            if ud.user and ud.pswd:
+                cmd = "%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" clone %s %s://%s/%s %s" % (ud.basecmd, ud.user, ud.pswd, proto, " ".join(options), proto, hgroot, ud.module, ud.module)
+            else:
+                cmd = "%s clone %s %s://%s/%s %s" % (ud.basecmd, " ".join(options), proto, hgroot, ud.module, ud.module)
+        elif command == "pull":
+            # do not pass options list; limiting pull to rev causes the local
+            # repo not to contain it and immediately following "update" command
+            # will crash
+            if ud.user and ud.pswd:
+                cmd = "%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" pull" % (ud.basecmd, ud.user, ud.pswd, proto)
+            else:
+                cmd = "%s pull" % (ud.basecmd)
+        elif command == "update":
+            if ud.user and ud.pswd:
+                cmd = "%s --config auth.default.prefix=* --config auth.default.username=%s --config auth.default.password=%s --config \"auth.default.schemes=%s\" update -C %s" % (ud.basecmd, ud.user, ud.pswd, proto, " ".join(options))
+            else:
+                cmd = "%s update -C %s" % (ud.basecmd, " ".join(options))
+        else:
+            raise FetchError("Invalid hg command %s" % command, ud.url)
+
+        return cmd
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        logger.debug(2, "Fetch: checking for module directory '" + ud.moddir + "'")
+
+        # If the checkout doesn't exist and the mirror tarball does, extract it
+        if not os.path.exists(ud.pkgdir) and os.path.exists(ud.fullmirror):
+            bb.utils.mkdirhier(ud.pkgdir)
+            runfetchcmd("tar -xzf %s" % (ud.fullmirror), d, workdir=ud.pkgdir)
+
+        if os.access(os.path.join(ud.moddir, '.hg'), os.R_OK):
+            # Found the source, check whether need pull
+            updatecmd = self._buildhgcommand(ud, d, "update")
+            logger.debug(1, "Running %s", updatecmd)
+            try:
+                runfetchcmd(updatecmd, d, workdir=ud.moddir)
+            except bb.fetch2.FetchError:
+                # Runnning pull in the repo
+                pullcmd = self._buildhgcommand(ud, d, "pull")
+                logger.info("Pulling " + ud.url)
+                # update sources there
+                logger.debug(1, "Running %s", pullcmd)
+                bb.fetch2.check_network_access(d, pullcmd, ud.url)
+                runfetchcmd(pullcmd, d, workdir=ud.moddir)
+                try:
+                    os.unlink(ud.fullmirror)
+                except OSError as exc:
+                    if exc.errno != errno.ENOENT:
+                        raise
+
+        # No source found, clone it.
+        if not os.path.exists(ud.moddir):
+            fetchcmd = self._buildhgcommand(ud, d, "fetch")
+            logger.info("Fetch " + ud.url)
+            # check out sources there
+            bb.utils.mkdirhier(ud.pkgdir)
+            logger.debug(1, "Running %s", fetchcmd)
+            bb.fetch2.check_network_access(d, fetchcmd, ud.url)
+            runfetchcmd(fetchcmd, d, workdir=ud.pkgdir)
+
+        # Even when we clone (fetch), we still need to update as hg's clone
+        # won't checkout the specified revision if its on a branch
+        updatecmd = self._buildhgcommand(ud, d, "update")
+        logger.debug(1, "Running %s", updatecmd)
+        runfetchcmd(updatecmd, d, workdir=ud.moddir)
+
+    def clean(self, ud, d):
+        """ Clean the hg dir """
+
+        bb.utils.remove(ud.localpath, True)
+        bb.utils.remove(ud.fullmirror)
+        bb.utils.remove(ud.fullmirror + ".done")
+
+    def supports_srcrev(self):
+        return True
+
+    def _latest_revision(self, ud, d, name):
+        """
+        Compute tip revision for the url
+        """
+        bb.fetch2.check_network_access(d, self._buildhgcommand(ud, d, "info"), ud.url)
+        output = runfetchcmd(self._buildhgcommand(ud, d, "info"), d)
+        return output.strip()
+
+    def _build_revision(self, ud, d, name):
+        return ud.revision
+
+    def _revision_key(self, ud, d, name):
+        """
+        Return a unique key for the url
+        """
+        return "hg:" + ud.moddir
+
+    def build_mirror_data(self, ud, d):
+        # Generate a mirror tarball if needed
+        if ud.write_tarballs == "1" and not os.path.exists(ud.fullmirror):
+            # it's possible that this symlink points to read-only filesystem with PREMIRROR
+            if os.path.islink(ud.fullmirror):
+                os.unlink(ud.fullmirror)
+
+            logger.info("Creating tarball of hg repository")
+            runfetchcmd("tar -czf %s %s" % (ud.fullmirror, ud.module), d, workdir=ud.pkgdir)
+            runfetchcmd("touch %s.done" % (ud.fullmirror), d, workdir=ud.pkgdir)
+
+    def localpath(self, ud, d):
+        return ud.pkgdir
+
+    def unpack(self, ud, destdir, d):
+        """
+        Make a local clone or export for the url
+        """
+
+        revflag = "-r %s" % ud.revision
+        subdir = ud.parm.get("destsuffix", ud.module)
+        codir = "%s/%s" % (destdir, subdir)
+
+        scmdata = ud.parm.get("scmdata", "")
+        if scmdata != "nokeep":
+            if not os.access(os.path.join(codir, '.hg'), os.R_OK):
+                logger.debug(2, "Unpack: creating new hg repository in '" + codir + "'")
+                runfetchcmd("%s init %s" % (ud.basecmd, codir), d)
+            logger.debug(2, "Unpack: updating source in '" + codir + "'")
+            runfetchcmd("%s pull %s" % (ud.basecmd, ud.moddir), d, workdir=codir)
+            runfetchcmd("%s up -C %s" % (ud.basecmd, revflag), d, workdir=codir)
+        else:
+            logger.debug(2, "Unpack: extracting source to '" + codir + "'")
+            runfetchcmd("%s archive -t files %s %s" % (ud.basecmd, revflag, codir), d, workdir=ud.moddir)

bitbake/lib/bb/fetch2/local.py

@@ -0,0 +1,119 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementations
+
+Classes for obtaining upstream sources for the
+BitBake build tools.
+
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import urllib.request, urllib.parse, urllib.error
+import bb
+import bb.utils
+from   bb.fetch2 import FetchMethod, FetchError
+from   bb.fetch2 import logger
+
+class Local(FetchMethod):
+    def supports(self, urldata, d):
+        """
+        Check to see if a given url represents a local fetch.
+        """
+        return urldata.type in ['file']
+
+    def urldata_init(self, ud, d):
+        # We don't set localfile as for this fetcher the file is already local!
+        ud.decodedurl = urllib.parse.unquote(ud.url.split("://")[1].split(";")[0])
+        ud.basename = os.path.basename(ud.decodedurl)
+        ud.basepath = ud.decodedurl
+        ud.needdonestamp = False
+        return
+
+    def localpath(self, urldata, d):
+        """
+        Return the local filename of a given url assuming a successful fetch.
+        """
+        return self.localpaths(urldata, d)[-1]
+
+    def localpaths(self, urldata, d):
+        """
+        Return the local filename of a given url assuming a successful fetch.
+        """
+        searched = []
+        path = urldata.decodedurl
+        newpath = path
+        if path[0] == "/":
+            return [path]
+        filespath = d.getVar('FILESPATH')
+        if filespath:
+            logger.debug(2, "Searching for %s in paths:\n    %s" % (path, "\n    ".join(filespath.split(":"))))
+            newpath, hist = bb.utils.which(filespath, path, history=True)
+            searched.extend(hist)
+        if (not newpath or not os.path.exists(newpath)) and path.find("*") != -1:
+            # For expressions using '*', best we can do is take the first directory in FILESPATH that exists
+            newpath, hist = bb.utils.which(filespath, ".", history=True)
+            searched.extend(hist)
+            logger.debug(2, "Searching for %s in path: %s" % (path, newpath))
+            return searched
+        if not os.path.exists(newpath):
+            dldirfile = os.path.join(d.getVar("DL_DIR"), path)
+            logger.debug(2, "Defaulting to %s for %s" % (dldirfile, path))
+            bb.utils.mkdirhier(os.path.dirname(dldirfile))
+            searched.append(dldirfile)
+            return searched
+        return searched
+
+    def need_update(self, ud, d):
+        if ud.url.find("*") != -1:
+            return False
+        if os.path.exists(ud.localpath):
+            return False
+        return True
+
+    def download(self, urldata, d):
+        """Fetch urls (no-op for Local method)"""
+        # no need to fetch local files, we'll deal with them in place.
+        if self.supports_checksum(urldata) and not os.path.exists(urldata.localpath):
+            locations = []
+            filespath = d.getVar('FILESPATH')
+            if filespath:
+                locations = filespath.split(":")
+            locations.append(d.getVar("DL_DIR"))
+
+            msg = "Unable to find file " + urldata.url + " anywhere. The paths that were searched were:\n    " + "\n    ".join(locations)
+            raise FetchError(msg)
+
+        return True
+
+    def checkstatus(self, fetch, urldata, d):
+        """
+        Check the status of the url
+        """
+        if urldata.localpath.find("*") != -1:
+            logger.info("URL %s looks like a glob and was therefore not checked.", urldata.url)
+            return True
+        if os.path.exists(urldata.localpath):
+            return True
+        return False
+
+    def clean(self, urldata, d):
+        return
+

bitbake/lib/bb/fetch2/npm.py

@@ -0,0 +1,307 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' NPM implementation
+
+The NPM fetcher is used to retrieve files from the npmjs repository
+
+Usage in the recipe:
+
+    SRC_URI = "npm://registry.npmjs.org/;name=${PN};version=${PV}"
+    Suported SRC_URI options are:
+
+    - name
+    - version
+
+    npm://registry.npmjs.org/${PN}/-/${PN}-${PV}.tgz  would become npm://registry.npmjs.org;name=${PN};version=${PV}
+    The fetcher all triggers off the existence of ud.localpath. If that exists and has the ".done" stamp, its assumed the fetch is good/done
+
+"""
+
+import os
+import sys
+import urllib.request, urllib.parse, urllib.error
+import json
+import subprocess
+import signal
+import bb
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import FetchError
+from   bb.fetch2 import ChecksumError
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+from   bb.fetch2 import UnpackError
+from   bb.fetch2 import ParameterError
+from   distutils import spawn
+
+def subprocess_setup():
+    # Python installs a SIGPIPE handler by default. This is usually not what
+    # non-Python subprocesses expect.
+    # SIGPIPE errors are known issues with gzip/bash
+    signal.signal(signal.SIGPIPE, signal.SIG_DFL)
+
+class Npm(FetchMethod):
+
+    """Class to fetch urls via 'npm'"""
+    def init(self, d):
+        pass
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with npm
+        """
+        return ud.type in ['npm']
+
+    def debug(self, msg):
+        logger.debug(1, "NpmFetch: %s", msg)
+
+    def clean(self, ud, d):
+        logger.debug(2, "Calling cleanup %s" % ud.pkgname)
+        bb.utils.remove(ud.localpath, False)
+        bb.utils.remove(ud.pkgdatadir, True)
+        bb.utils.remove(ud.fullmirror, False)
+
+    def urldata_init(self, ud, d):
+        """
+        init NPM specific variable within url data
+        """
+        if 'downloadfilename' in ud.parm:
+            ud.basename = ud.parm['downloadfilename']
+        else:
+            ud.basename = os.path.basename(ud.path)
+
+        # can't call it ud.name otherwise fetcher base class will start doing sha1stuff
+        # TODO: find a way to get an sha1/sha256 manifest of pkg & all deps
+        ud.pkgname = ud.parm.get("name", None)
+        if not ud.pkgname:
+            raise ParameterError("NPM fetcher requires a name parameter", ud.url)
+        ud.version = ud.parm.get("version", None)
+        if not ud.version:
+            raise ParameterError("NPM fetcher requires a version parameter", ud.url)
+        ud.bbnpmmanifest = "%s-%s.deps.json" % (ud.pkgname, ud.version)
+        ud.bbnpmmanifest = ud.bbnpmmanifest.replace('/', '-')
+        ud.registry = "http://%s" % (ud.url.replace('npm://', '', 1).split(';'))[0]
+        prefixdir = "npm/%s" % ud.pkgname
+        ud.pkgdatadir = d.expand("${DL_DIR}/%s" % prefixdir)
+        if not os.path.exists(ud.pkgdatadir):
+            bb.utils.mkdirhier(ud.pkgdatadir)
+        ud.localpath = d.expand("${DL_DIR}/npm/%s" % ud.bbnpmmanifest)
+
+        self.basecmd = d.getVar("FETCHCMD_wget") or "/usr/bin/env wget -O -t 2 -T 30 -nv --passive-ftp --no-check-certificate "
+        ud.prefixdir = prefixdir
+
+        ud.write_tarballs = ((d.getVar("BB_GENERATE_MIRROR_TARBALLS") or "0") != "0")
+        mirrortarball = 'npm_%s-%s.tar.xz' % (ud.pkgname, ud.version)
+        mirrortarball = mirrortarball.replace('/', '-')
+        ud.fullmirror = os.path.join(d.getVar("DL_DIR"), mirrortarball)
+        ud.mirrortarballs = [mirrortarball]
+
+    def need_update(self, ud, d):
+        if os.path.exists(ud.localpath):
+            return False
+        return True
+
+    def _runwget(self, ud, d, command, quiet):
+        logger.debug(2, "Fetching %s using command '%s'" % (ud.url, command))
+        bb.fetch2.check_network_access(d, command, ud.url)
+        dldir = d.getVar("DL_DIR")
+        runfetchcmd(command, d, quiet, workdir=dldir)
+
+    def _unpackdep(self, ud, pkg, data, destdir, dldir, d):
+        file = data[pkg]['tgz']
+        logger.debug(2, "file to extract is %s" % file)
+        if file.endswith('.tgz') or file.endswith('.tar.gz') or file.endswith('.tar.Z'):
+            cmd = 'tar xz --strip 1 --no-same-owner --warning=no-unknown-keyword -f %s/%s' % (dldir, file)
+        else:
+            bb.fatal("NPM package %s downloaded not a tarball!" % file)
+
+        # Change to subdir before executing command
+        if not os.path.exists(destdir):
+            os.makedirs(destdir)
+        path = d.getVar('PATH')
+        if path:
+            cmd = "PATH=\"%s\" %s" % (path, cmd)
+        bb.note("Unpacking %s to %s/" % (file, destdir))
+        ret = subprocess.call(cmd, preexec_fn=subprocess_setup, shell=True, cwd=destdir)
+
+        if ret != 0:
+            raise UnpackError("Unpack command %s failed with return value %s" % (cmd, ret), ud.url)
+
+        if 'deps' not in data[pkg]:
+            return
+        for dep in data[pkg]['deps']:
+            self._unpackdep(ud, dep, data[pkg]['deps'], "%s/node_modules/%s" % (destdir, dep), dldir, d)
+
+
+    def unpack(self, ud, destdir, d):
+        dldir = d.getVar("DL_DIR")
+        with open("%s/npm/%s" % (dldir, ud.bbnpmmanifest)) as datafile:
+            workobj = json.load(datafile)
+        dldir = "%s/%s" % (os.path.dirname(ud.localpath), ud.pkgname)
+
+        if 'subdir' in ud.parm:
+            unpackdir = '%s/%s' % (destdir, ud.parm.get('subdir'))
+        else:
+            unpackdir = '%s/npmpkg' % destdir
+
+        self._unpackdep(ud, ud.pkgname, workobj, unpackdir, dldir, d)
+
+    def _parse_view(self, output):
+        '''
+        Parse the output of npm view --json; the last JSON result
+        is assumed to be the one that we're interested in.
+        '''
+        pdata = None
+        outdeps = {}
+        datalines = []
+        bracelevel = 0
+        for line in output.splitlines():
+            if bracelevel:
+                datalines.append(line)
+            elif '{' in line:
+                datalines = []
+                datalines.append(line)
+            bracelevel = bracelevel + line.count('{') - line.count('}')
+        if datalines:
+            pdata = json.loads('\n'.join(datalines))
+        return pdata
+
+    def _getdependencies(self, pkg, data, version, d, ud, optional=False, fetchedlist=None):
+        if fetchedlist is None:
+            fetchedlist = []
+        pkgfullname = pkg
+        if version != '*' and not '/' in version:
+            pkgfullname += "@'%s'" % version
+        logger.debug(2, "Calling getdeps on %s" % pkg)
+        fetchcmd = "npm view %s --json --registry %s" % (pkgfullname, ud.registry)
+        output = runfetchcmd(fetchcmd, d, True)
+        pdata = self._parse_view(output)
+        if not pdata:
+            raise FetchError("The command '%s' returned no output" % fetchcmd)
+        if optional:
+            pkg_os = pdata.get('os', None)
+            if pkg_os:
+                if not isinstance(pkg_os, list):
+                    pkg_os = [pkg_os]
+                blacklist = False
+                for item in pkg_os:
+                    if item.startswith('!'):
+                        blacklist = True
+                        break
+                if (not blacklist and 'linux' not in pkg_os) or '!linux' in pkg_os:
+                    logger.debug(2, "Skipping %s since it's incompatible with Linux" % pkg)
+                    return
+        #logger.debug(2, "Output URL is %s - %s - %s" % (ud.basepath, ud.basename, ud.localfile))
+        outputurl = pdata['dist']['tarball']
+        data[pkg] = {}
+        data[pkg]['tgz'] = os.path.basename(outputurl)
+        if not outputurl in fetchedlist:
+            self._runwget(ud, d, "%s --directory-prefix=%s %s" % (self.basecmd, ud.prefixdir, outputurl), False)
+            fetchedlist.append(outputurl)
+
+        dependencies = pdata.get('dependencies', {})
+        optionalDependencies = pdata.get('optionalDependencies', {})
+        dependencies.update(optionalDependencies)
+        depsfound = {}
+        optdepsfound = {}
+        data[pkg]['deps'] = {}
+        for dep in dependencies:
+            if dep in optionalDependencies:
+                optdepsfound[dep] = dependencies[dep]
+            else:
+                depsfound[dep] = dependencies[dep]
+        for dep, version in optdepsfound.items():
+            self._getdependencies(dep, data[pkg]['deps'], version, d, ud, optional=True, fetchedlist=fetchedlist)
+        for dep, version in depsfound.items():
+            self._getdependencies(dep, data[pkg]['deps'], version, d, ud, fetchedlist=fetchedlist)
+
+    def _getshrinkeddependencies(self, pkg, data, version, d, ud, lockdown, manifest, toplevel=True):
+        logger.debug(2, "NPM shrinkwrap file is %s" % data)
+        if toplevel:
+            name = data.get('name', None)
+            if name and name != pkg:
+                for obj in data.get('dependencies', []):
+                    if obj == pkg:
+                        self._getshrinkeddependencies(obj, data['dependencies'][obj], data['dependencies'][obj]['version'], d, ud, lockdown, manifest, False)
+                        return
+        outputurl = "invalid"
+        if ('resolved' not in data) or (not data['resolved'].startswith('http')):
+            # will be the case for ${PN}
+            fetchcmd = "npm view %s@%s dist.tarball --registry %s" % (pkg, version, ud.registry)
+            logger.debug(2, "Found this matching URL: %s" % str(fetchcmd))
+            outputurl = runfetchcmd(fetchcmd, d, True)
+        else:
+            outputurl = data['resolved']
+        self._runwget(ud, d, "%s --directory-prefix=%s %s" % (self.basecmd, ud.prefixdir, outputurl), False)
+        manifest[pkg] = {}
+        manifest[pkg]['tgz'] = os.path.basename(outputurl).rstrip()
+        manifest[pkg]['deps'] = {}
+
+        if pkg in lockdown:
+            sha1_expected = lockdown[pkg][version]
+            sha1_data = bb.utils.sha1_file("npm/%s/%s" % (ud.pkgname, manifest[pkg]['tgz']))
+            if sha1_expected != sha1_data:
+                msg = "\nFile: '%s' has %s checksum %s when %s was expected" % (manifest[pkg]['tgz'], 'sha1', sha1_data, sha1_expected)
+                raise ChecksumError('Checksum mismatch!%s' % msg)
+        else:
+            logger.debug(2, "No lockdown data for %s@%s" % (pkg, version))
+
+        if 'dependencies' in data:
+            for obj in data['dependencies']:
+                logger.debug(2, "Found dep is %s" % str(obj))
+                self._getshrinkeddependencies(obj, data['dependencies'][obj], data['dependencies'][obj]['version'], d, ud, lockdown, manifest[pkg]['deps'], False)
+
+    def download(self, ud, d):
+        """Fetch url"""
+        jsondepobj = {}
+        shrinkobj = {}
+        lockdown = {}
+
+        if not os.listdir(ud.pkgdatadir) and os.path.exists(ud.fullmirror):
+            dest = d.getVar("DL_DIR")
+            bb.utils.mkdirhier(dest)
+            runfetchcmd("tar -xJf %s" % (ud.fullmirror), d, workdir=dest)
+            return
+
+        if ud.parm.get("noverify", None) != '1':
+            shwrf = d.getVar('NPM_SHRINKWRAP')
+            logger.debug(2, "NPM shrinkwrap file is %s" % shwrf)
+            if shwrf:
+                try:
+                    with open(shwrf) as datafile:
+                        shrinkobj = json.load(datafile)
+                except Exception as e:
+                    raise FetchError('Error loading NPM_SHRINKWRAP file "%s" for %s: %s' % (shwrf, ud.pkgname, str(e)))
+            elif not ud.ignore_checksums:
+                logger.warning('Missing shrinkwrap file in NPM_SHRINKWRAP for %s, this will lead to unreliable builds!' % ud.pkgname)
+            lckdf = d.getVar('NPM_LOCKDOWN')
+            logger.debug(2, "NPM lockdown file is %s" % lckdf)
+            if lckdf:
+                try:
+                    with open(lckdf) as datafile:
+                        lockdown = json.load(datafile)
+                except Exception as e:
+                    raise FetchError('Error loading NPM_LOCKDOWN file "%s" for %s: %s' % (lckdf, ud.pkgname, str(e)))
+            elif not ud.ignore_checksums:
+                logger.warning('Missing lockdown file in NPM_LOCKDOWN for %s, this will lead to unreproducible builds!' % ud.pkgname)
+
+        if ('name' not in shrinkobj):
+            self._getdependencies(ud.pkgname, jsondepobj, ud.version, d, ud)
+        else:
+            self._getshrinkeddependencies(ud.pkgname, shrinkobj, ud.version, d, ud, lockdown, jsondepobj)
+
+        with open(ud.localpath, 'w') as outfile:
+            json.dump(jsondepobj, outfile)
+
+    def build_mirror_data(self, ud, d):
+        # Generate a mirror tarball if needed
+        if ud.write_tarballs and not os.path.exists(ud.fullmirror):
+            # it's possible that this symlink points to read-only filesystem with PREMIRROR
+            if os.path.islink(ud.fullmirror):
+                os.unlink(ud.fullmirror)
+
+            dldir = d.getVar("DL_DIR")
+            logger.info("Creating tarball of npm data")
+            runfetchcmd("tar -cJf %s npm/%s npm/%s" % (ud.fullmirror, ud.bbnpmmanifest, ud.pkgname), d,
+                        workdir=dldir)
+            runfetchcmd("touch %s.done" % (ud.fullmirror), d, workdir=dldir)

bitbake/lib/bb/fetch2/osc.py

@@ -0,0 +1,132 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+Bitbake "Fetch" implementation for osc (Opensuse build service client).
+Based on the svn "Fetch" implementation.
+
+"""
+
+import  os
+import  sys
+import logging
+import  bb
+from    bb.fetch2 import FetchMethod
+from    bb.fetch2 import FetchError
+from    bb.fetch2 import MissingParameterError
+from    bb.fetch2 import runfetchcmd
+
+class Osc(FetchMethod):
+    """Class to fetch a module or modules from Opensuse build server
+       repositories."""
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with osc.
+        """
+        return ud.type in ['osc']
+
+    def urldata_init(self, ud, d):
+        if not "module" in ud.parm:
+            raise MissingParameterError('module', ud.url)
+
+        ud.module = ud.parm["module"]
+
+        # Create paths to osc checkouts
+        relpath = self._strip_leading_slashes(ud.path)
+        ud.pkgdir = os.path.join(d.getVar('OSCDIR'), ud.host)
+        ud.moddir = os.path.join(ud.pkgdir, relpath, ud.module)
+
+        if 'rev' in ud.parm:
+            ud.revision = ud.parm['rev']
+        else:
+            pv = d.getVar("PV", False)
+            rev = bb.fetch2.srcrev_internal_helper(ud, d)
+            if rev and rev != True:
+                ud.revision = rev
+            else:
+                ud.revision = ""
+
+        ud.localfile = d.expand('%s_%s_%s.tar.gz' % (ud.module.replace('/', '.'), ud.path.replace('/', '.'), ud.revision))
+
+    def _buildosccommand(self, ud, d, command):
+        """
+        Build up an ocs commandline based on ud
+        command is "fetch", "update", "info"
+        """
+
+        basecmd = d.expand('${FETCHCMD_osc}')
+
+        proto = ud.parm.get('protocol', 'ocs')
+
+        options = []
+
+        config = "-c %s" % self.generate_config(ud, d)
+
+        if ud.revision:
+            options.append("-r %s" % ud.revision)
+
+        coroot = self._strip_leading_slashes(ud.path)
+
+        if command == "fetch":
+            osccmd = "%s %s co %s/%s %s" % (basecmd, config, coroot, ud.module, " ".join(options))
+        elif command == "update":
+            osccmd = "%s %s up %s" % (basecmd, config, " ".join(options))
+        else:
+            raise FetchError("Invalid osc command %s" % command, ud.url)
+
+        return osccmd
+
+    def download(self, ud, d):
+        """
+        Fetch url
+        """
+
+        logger.debug(2, "Fetch: checking for module directory '" + ud.moddir + "'")
+
+        if os.access(os.path.join(d.getVar('OSCDIR'), ud.path, ud.module), os.R_OK):
+            oscupdatecmd = self._buildosccommand(ud, d, "update")
+            logger.info("Update "+ ud.url)
+            # update sources there
+            logger.debug(1, "Running %s", oscupdatecmd)
+            bb.fetch2.check_network_access(d, oscupdatecmd, ud.url)
+            runfetchcmd(oscupdatecmd, d, workdir=ud.moddir)
+        else:
+            oscfetchcmd = self._buildosccommand(ud, d, "fetch")
+            logger.info("Fetch " + ud.url)
+            # check out sources there
+            bb.utils.mkdirhier(ud.pkgdir)
+            logger.debug(1, "Running %s", oscfetchcmd)
+            bb.fetch2.check_network_access(d, oscfetchcmd, ud.url)
+            runfetchcmd(oscfetchcmd, d, workdir=ud.pkgdir)
+
+        # tar them up to a defined filename
+        runfetchcmd("tar -czf %s %s" % (ud.localpath, ud.module), d,
+                    cleanup=[ud.localpath], workdir=os.path.join(ud.pkgdir + ud.path))
+
+    def supports_srcrev(self):
+        return False
+
+    def generate_config(self, ud, d):
+        """
+        Generate a .oscrc to be used for this run.
+        """
+
+        config_path = os.path.join(d.getVar('OSCDIR'), "oscrc")
+        if (os.path.exists(config_path)):
+            os.remove(config_path)
+
+        f = open(config_path, 'w')
+        f.write("[general]\n")
+        f.write("apisrv = %s\n" % ud.host)
+        f.write("scheme = http\n")
+        f.write("su-wrapper = su -c\n")
+        f.write("build-root = %s\n" % d.getVar('WORKDIR'))
+        f.write("urllist = %s\n" % d.getVar("OSCURLLIST"))
+        f.write("extra-pkgs = gzip\n")
+        f.write("\n")
+        f.write("[%s]\n" % ud.host)
+        f.write("user = %s\n" % ud.parm["user"])
+        f.write("pass = %s\n" % ud.parm["pswd"])
+        f.close()
+
+        return config_path

bitbake/lib/bb/fetch2/perforce.py

@@ -0,0 +1,209 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementation for perforce
+
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2016 Kodak Alaris, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import logging
+import bb
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import FetchError
+from   bb.fetch2 import logger
+from   bb.fetch2 import runfetchcmd
+
+class Perforce(FetchMethod):
+    """ Class to fetch from perforce repositories """
+    def supports(self, ud, d):
+        """ Check to see if a given url can be fetched with perforce. """
+        return ud.type in ['p4']
+
+    def urldata_init(self, ud, d):
+        """
+        Initialize perforce specific variables within url data.  If P4CONFIG is
+        provided by the env, use it.  If P4PORT is specified by the recipe, use
+        its values, which may override the settings in P4CONFIG.
+        """
+        ud.basecmd = d.getVar('FETCHCMD_p4')
+        if not ud.basecmd:
+            ud.basecmd = "/usr/bin/env p4"
+
+        ud.dldir = d.getVar('P4DIR')
+        if not ud.dldir:
+            ud.dldir = '%s/%s' % (d.getVar('DL_DIR'), 'p4')
+
+        path = ud.url.split('://')[1]
+        path = path.split(';')[0]
+        delim = path.find('@');
+        if delim != -1:
+            (ud.user, ud.pswd) = path.split('@')[0].split(':')
+            ud.path = path.split('@')[1]
+        else:
+            ud.path = path
+
+        ud.usingp4config = False
+        p4port = d.getVar('P4PORT')
+
+        if p4port:
+            logger.debug(1, 'Using recipe provided P4PORT: %s' % p4port)
+            ud.host = p4port
+        else:
+            logger.debug(1, 'Trying to use P4CONFIG to automatically set P4PORT...')
+            ud.usingp4config = True
+            p4cmd = '%s info | grep "Server address"' % ud.basecmd
+            bb.fetch2.check_network_access(d, p4cmd, ud.url)
+            ud.host = runfetchcmd(p4cmd, d, True)
+            ud.host = ud.host.split(': ')[1].strip()
+            logger.debug(1, 'Determined P4PORT to be: %s' % ud.host)
+            if not ud.host:
+                raise FetchError('Could not determine P4PORT from P4CONFIG')
+	
+        if ud.path.find('/...') >= 0:
+            ud.pathisdir = True
+        else:
+            ud.pathisdir = False
+
+        cleanedpath = ud.path.replace('/...', '').replace('/', '.')
+        cleanedhost = ud.host.replace(':', '.')
+        ud.pkgdir = os.path.join(ud.dldir, cleanedhost, cleanedpath)
+
+        ud.setup_revisions(d)
+
+        ud.localfile = d.expand('%s_%s_%s.tar.gz' % (cleanedhost, cleanedpath, ud.revision))
+
+    def _buildp4command(self, ud, d, command, depot_filename=None):
+        """
+        Build a p4 commandline.  Valid commands are "changes", "print", and
+        "files".  depot_filename is the full path to the file in the depot
+        including the trailing '#rev' value.
+        """
+        p4opt = ""
+
+        if ud.user:
+            p4opt += ' -u "%s"' % (ud.user)
+
+        if ud.pswd:
+            p4opt += ' -P "%s"' % (ud.pswd)
+
+        if ud.host and not ud.usingp4config:
+            p4opt += ' -p %s' % (ud.host)
+
+        if hasattr(ud, 'revision') and ud.revision:
+            pathnrev = '%s@%s' % (ud.path, ud.revision)
+        else:
+            pathnrev = '%s' % (ud.path)
+
+        if depot_filename:
+            if ud.pathisdir: # Remove leading path to obtain filename
+                filename = depot_filename[len(ud.path)-1:]
+            else:
+                filename = depot_filename[depot_filename.rfind('/'):]
+            filename = filename[:filename.find('#')] # Remove trailing '#rev'
+
+        if command == 'changes':
+            p4cmd = '%s%s changes -m 1 //%s' % (ud.basecmd, p4opt, pathnrev)
+        elif command == 'print':
+            if depot_filename != None:
+                p4cmd = '%s%s print -o "p4/%s" "%s"' % (ud.basecmd, p4opt, filename, depot_filename)
+            else:
+                raise FetchError('No depot file name provided to p4 %s' % command, ud.url)
+        elif command == 'files':
+            p4cmd = '%s%s files //%s' % (ud.basecmd, p4opt, pathnrev)
+        else:
+            raise FetchError('Invalid p4 command %s' % command, ud.url)
+
+        return p4cmd
+
+    def _p4listfiles(self, ud, d):
+        """
+        Return a list of the file names which are present in the depot using the
+        'p4 files' command, including trailing '#rev' file revision indicator
+        """
+        p4cmd = self._buildp4command(ud, d, 'files')
+        bb.fetch2.check_network_access(d, p4cmd, ud.url)
+        p4fileslist = runfetchcmd(p4cmd, d, True)
+        p4fileslist = [f.rstrip() for f in p4fileslist.splitlines()]
+
+        if not p4fileslist:
+            raise FetchError('Unable to fetch listing of p4 files from %s@%s' % (ud.host, ud.path))
+
+        count = 0
+        filelist = []
+
+        for filename in p4fileslist:
+            item = filename.split(' - ')
+            lastaction = item[1].split()
+            logger.debug(1, 'File: %s Last Action: %s' % (item[0], lastaction[0]))
+            if lastaction[0] == 'delete':
+                continue
+            filelist.append(item[0])
+
+        return filelist
+
+    def download(self, ud, d):
+        """ Get the list of files, fetch each one """
+        filelist = self._p4listfiles(ud, d)
+        if not filelist:
+            raise FetchError('No files found in depot %s@%s' % (ud.host, ud.path))
+
+        bb.utils.remove(ud.pkgdir, True)
+        bb.utils.mkdirhier(ud.pkgdir)
+
+        for afile in filelist:
+            p4fetchcmd = self._buildp4command(ud, d, 'print', afile)
+            bb.fetch2.check_network_access(d, p4fetchcmd, ud.url)
+            runfetchcmd(p4fetchcmd, d, workdir=ud.pkgdir)
+
+        runfetchcmd('tar -czf %s p4' % (ud.localpath), d, cleanup=[ud.localpath], workdir=ud.pkgdir)
+
+    def clean(self, ud, d):
+        """ Cleanup p4 specific files and dirs"""
+        bb.utils.remove(ud.localpath)
+        bb.utils.remove(ud.pkgdir, True)
+
+    def supports_srcrev(self):
+        return True
+
+    def _revision_key(self, ud, d, name):
+        """ Return a unique key for the url """
+        return 'p4:%s' % ud.pkgdir
+
+    def _latest_revision(self, ud, d, name):
+        """ Return the latest upstream scm revision number """
+        p4cmd = self._buildp4command(ud, d, "changes")
+        bb.fetch2.check_network_access(d, p4cmd, ud.url)
+        tip = runfetchcmd(p4cmd, d, True)
+
+        if not tip:
+            raise FetchError('Could not determine the latest perforce changelist')
+
+        tipcset = tip.split(' ')[1]
+        logger.debug(1, 'p4 tip found to be changelist %s' % tipcset)
+        return tipcset
+
+    def sortable_revision(self, ud, d, name):
+        """ Return a sortable revision number """
+        return False, self._build_revision(ud, d)
+
+    def _build_revision(self, ud, d):
+        return ud.revision
+

bitbake/lib/bb/fetch2/repo.py

@@ -0,0 +1,97 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake "Fetch" repo (git) implementation
+
+"""
+
+# Copyright (C) 2009 Tom Rini <trini@embeddedalley.com>
+#
+# Based on git.py which is:
+#Copyright (C) 2005 Richard Purdie
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import os
+import bb
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+
+class Repo(FetchMethod):
+    """Class to fetch a module or modules from repo (git) repositories"""
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with repo.
+        """
+        return ud.type in ["repo"]
+
+    def urldata_init(self, ud, d):
+        """
+        We don"t care about the git rev of the manifests repository, but
+        we do care about the manifest to use.  The default is "default".
+        We also care about the branch or tag to be used.  The default is
+        "master".
+        """
+
+        ud.proto = ud.parm.get('protocol', 'git')
+        ud.branch = ud.parm.get('branch', 'master')
+        ud.manifest = ud.parm.get('manifest', 'default.xml')
+        if not ud.manifest.endswith('.xml'):
+            ud.manifest += '.xml'
+
+        ud.localfile = d.expand("repo_%s%s_%s_%s.tar.gz" % (ud.host, ud.path.replace("/", "."), ud.manifest, ud.branch))
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        if os.access(os.path.join(d.getVar("DL_DIR"), ud.localfile), os.R_OK):
+            logger.debug(1, "%s already exists (or was stashed). Skipping repo init / sync.", ud.localpath)
+            return
+
+        gitsrcname = "%s%s" % (ud.host, ud.path.replace("/", "."))
+        repodir = d.getVar("REPODIR") or os.path.join(d.getVar("DL_DIR"), "repo")
+        codir = os.path.join(repodir, gitsrcname, ud.manifest)
+
+        if ud.user:
+            username = ud.user + "@"
+        else:
+            username = ""
+
+        repodir = os.path.join(codir, "repo")
+        bb.utils.mkdirhier(repodir)
+        if not os.path.exists(os.path.join(repodir, ".repo")):
+            bb.fetch2.check_network_access(d, "repo init -m %s -b %s -u %s://%s%s%s" % (ud.manifest, ud.branch, ud.proto, username, ud.host, ud.path), ud.url)
+            runfetchcmd("repo init -m %s -b %s -u %s://%s%s%s" % (ud.manifest, ud.branch, ud.proto, username, ud.host, ud.path), d, workdir=repodir)
+
+        bb.fetch2.check_network_access(d, "repo sync %s" % ud.url, ud.url)
+        runfetchcmd("repo sync", d, workdir=repodir)
+
+        scmdata = ud.parm.get("scmdata", "")
+        if scmdata == "keep":
+            tar_flags = ""
+        else:
+            tar_flags = "--exclude='.repo' --exclude='.git'"
+
+        # Create a cache
+        runfetchcmd("tar %s -czf %s %s" % (tar_flags, ud.localpath, os.path.join(".", "*") ), d, workdir=codir)
+
+    def supports_srcrev(self):
+        return False
+
+    def _build_revision(self, ud, d):
+        return ud.manifest
+
+    def _want_sortable_revision(self, ud, d):
+        return False

bitbake/lib/bb/fetch2/s3.py

@@ -0,0 +1,98 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementation for Amazon AWS S3.
+
+Class for fetching files from Amazon S3 using the AWS Command Line Interface.
+The aws tool must be correctly installed and configured prior to use.
+
+"""
+
+# Copyright (C) 2017, Andre McCurdy <armccurdy@gmail.com>
+#
+# Based in part on bb.fetch2.wget:
+#    Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import bb
+import urllib.request, urllib.parse, urllib.error
+from bb.fetch2 import FetchMethod
+from bb.fetch2 import FetchError
+from bb.fetch2 import runfetchcmd
+
+class S3(FetchMethod):
+    """Class to fetch urls via 'aws s3'"""
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with s3.
+        """
+        return ud.type in ['s3']
+
+    def recommends_checksum(self, urldata):
+        return True
+
+    def urldata_init(self, ud, d):
+        if 'downloadfilename' in ud.parm:
+            ud.basename = ud.parm['downloadfilename']
+        else:
+            ud.basename = os.path.basename(ud.path)
+
+        ud.localfile = d.expand(urllib.parse.unquote(ud.basename))
+
+        ud.basecmd = d.getVar("FETCHCMD_s3") or "/usr/bin/env aws s3"
+
+    def download(self, ud, d):
+        """
+        Fetch urls
+        Assumes localpath was called first
+        """
+
+        cmd = '%s cp s3://%s%s %s' % (ud.basecmd, ud.host, ud.path, ud.localpath)
+        bb.fetch2.check_network_access(d, cmd, ud.url)
+        runfetchcmd(cmd, d)
+
+        # Additional sanity checks copied from the wget class (although there
+        # are no known issues which mean these are required, treat the aws cli
+        # tool with a little healthy suspicion).
+
+        if not os.path.exists(ud.localpath):
+            raise FetchError("The aws cp command returned success for s3://%s%s but %s doesn't exist?!" % (ud.host, ud.path, ud.localpath))
+
+        if os.path.getsize(ud.localpath) == 0:
+            os.remove(ud.localpath)
+            raise FetchError("The aws cp command for s3://%s%s resulted in a zero size file?! Deleting and failing since this isn't right." % (ud.host, ud.path))
+
+        return True
+
+    def checkstatus(self, fetch, ud, d):
+        """
+        Check the status of a URL
+        """
+
+        cmd = '%s ls s3://%s%s' % (ud.basecmd, ud.host, ud.path)
+        bb.fetch2.check_network_access(d, cmd, ud.url)
+        output = runfetchcmd(cmd, d)
+
+        # "aws s3 ls s3://mybucket/foo" will exit with success even if the file
+        # is not found, so check output of the command to confirm success.
+
+        if not output:
+            raise FetchError("The aws ls command for s3://%s%s gave empty output" % (ud.host, ud.path))
+
+        return True

bitbake/lib/bb/fetch2/sftp.py

@@ -0,0 +1,125 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake SFTP Fetch implementation
+
+Class for fetching files via SFTP. It tries to adhere to the (now
+expired) IETF Internet Draft for "Uniform Resource Identifier (URI)
+Scheme for Secure File Transfer Protocol (SFTP) and Secure Shell
+(SSH)" (SECSH URI).
+
+It uses SFTP (as to adhere to the SECSH URI specification). It only
+supports key based authentication, not password. This class, unlike
+the SSH fetcher, does not support fetching a directory tree from the
+remote.
+
+  http://tools.ietf.org/html/draft-ietf-secsh-scp-sftp-ssh-uri-04
+  https://www.iana.org/assignments/uri-schemes/prov/sftp
+  https://tools.ietf.org/html/draft-ietf-secsh-filexfer-13
+
+Please note that '/' is used as host path seperator, and not ":"
+as you may be used to from the scp/sftp commands. You can use a
+~ (tilde) to specify a path relative to your home directory.
+(The /~user/ syntax, for specyfing a path relative to another
+user's home directory is not supported.) Note that the tilde must
+still follow the host path seperator ("/"). See exampels below.
+
+Example SRC_URIs:
+
+SRC_URI = "sftp://host.example.com/dir/path.file.txt"
+
+A path relative to your home directory.
+
+SRC_URI = "sftp://host.example.com/~/dir/path.file.txt"
+
+You can also specify a username (specyfing password in the
+URI is not supported, use SSH keys to authenticate):
+
+SRC_URI = "sftp://user@host.example.com/dir/path.file.txt"
+
+"""
+
+# Copyright (C) 2013, Olof Johansson <olof.johansson@axis.com>
+#
+# Based in part on bb.fetch2.wget:
+#    Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import bb
+import urllib.request, urllib.parse, urllib.error
+from bb.fetch2 import URI
+from bb.fetch2 import FetchMethod
+from bb.fetch2 import runfetchcmd
+
+class SFTP(FetchMethod):
+    """Class to fetch urls via 'sftp'"""
+
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with sftp.
+        """
+        return ud.type in ['sftp']
+
+    def recommends_checksum(self, urldata):
+        return True
+
+    def urldata_init(self, ud, d):
+        if 'protocol' in ud.parm and ud.parm['protocol'] == 'git':
+            raise bb.fetch2.ParameterError(
+                "Invalid protocol - if you wish to fetch from a " +
+                "git repository using ssh, you need to use the " +
+                "git:// prefix with protocol=ssh", ud.url)
+
+        if 'downloadfilename' in ud.parm:
+            ud.basename = ud.parm['downloadfilename']
+        else:
+            ud.basename = os.path.basename(ud.path)
+
+        ud.localfile = d.expand(urllib.parse.unquote(ud.basename))
+
+    def download(self, ud, d):
+        """Fetch urls"""
+
+        urlo = URI(ud.url)
+        basecmd = 'sftp -oBatchMode=yes'
+        port = ''
+        if urlo.port:
+            port = '-P %d' % urlo.port
+            urlo.port = None
+
+        dldir = d.getVar('DL_DIR')
+        lpath = os.path.join(dldir, ud.localfile)
+
+        user = ''
+        if urlo.userinfo:
+            user = urlo.userinfo + '@'
+
+        path = urlo.path
+
+        # Supoprt URIs relative to the user's home directory, with
+        # the tilde syntax. (E.g. <sftp://example.com/~/foo.diff>).
+        if path[:3] == '/~/':
+            path = path[3:]
+
+        remote = '%s%s:%s' % (user, urlo.hostname, path)
+
+        cmd = '%s %s %s %s' % (basecmd, port, remote, lpath)
+
+        bb.fetch2.check_network_access(d, cmd, ud.url)
+        runfetchcmd(cmd, d)
+        return True

bitbake/lib/bb/fetch2/ssh.py

@@ -0,0 +1,125 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+'''
+BitBake 'Fetch' implementations
+
+This implementation is for Secure Shell (SSH), and attempts to comply with the
+IETF secsh internet draft:
+    http://tools.ietf.org/wg/secsh/draft-ietf-secsh-scp-sftp-ssh-uri/
+
+    Currently does not support the sftp parameters, as this uses scp
+    Also does not support the 'fingerprint' connection parameter.
+
+    Please note that '/' is used as host, path separator not ':' as you may 
+    be used to, also '~' can be used to specify user HOME, but again after '/'
+    
+    Example SRC_URI:
+    SRC_URI = "ssh://user@host.example.com/dir/path/file.txt"
+    SRC_URI = "ssh://user@host.example.com/~/file.txt"
+'''
+
+# Copyright (C) 2006  OpenedHand Ltd.
+#
+#
+# Based in part on svk.py:
+#    Copyright (C) 2006 Holger Hans Peter Freyther
+#    Based on svn.py:
+#        Copyright (C) 2003, 2004  Chris Larson
+#        Based on functions from the base bb module:
+#            Copyright 2003 Holger Schurig
+#
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import re, os
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import FetchError
+from   bb.fetch2 import logger
+from   bb.fetch2 import runfetchcmd
+
+
+__pattern__ = re.compile(r'''
+ \s*                 # Skip leading whitespace
+ ssh://              # scheme
+ (                   # Optional username/password block
+  (?P<user>\S+)      # username
+  (:(?P<pass>\S+))?  # colon followed by the password (optional)
+ )?
+ (?P<cparam>(;[^;]+)*)?  # connection parameters block (optional)
+ @
+ (?P<host>\S+?)          # non-greedy match of the host
+ (:(?P<port>[0-9]+))?    # colon followed by the port (optional)
+ /
+ (?P<path>[^;]+)         # path on the remote system, may be absolute or relative,
+                         # and may include the use of '~' to reference the remote home
+                         # directory
+ (?P<sparam>(;[^;]+)*)?  # parameters block (optional)
+ $
+''', re.VERBOSE)
+
+class SSH(FetchMethod):
+    '''Class to fetch a module or modules via Secure Shell'''
+
+    def supports(self, urldata, d):
+        return __pattern__.match(urldata.url) != None
+
+    def supports_checksum(self, urldata):
+        return False
+
+    def urldata_init(self, urldata, d):
+        if 'protocol' in urldata.parm and urldata.parm['protocol'] == 'git':
+            raise bb.fetch2.ParameterError(
+                "Invalid protocol - if you wish to fetch from a git " +
+                "repository using ssh, you need to use " +
+                "git:// prefix with protocol=ssh", urldata.url)
+        m = __pattern__.match(urldata.url)
+        path = m.group('path')
+        host = m.group('host')
+        urldata.localpath = os.path.join(d.getVar('DL_DIR'),
+                os.path.basename(os.path.normpath(path)))
+
+    def download(self, urldata, d):
+        dldir = d.getVar('DL_DIR')
+
+        m = __pattern__.match(urldata.url)
+        path = m.group('path')
+        host = m.group('host')
+        port = m.group('port')
+        user = m.group('user')
+        password = m.group('pass')
+
+        if port:
+            portarg = '-P %s' % port
+        else:
+            portarg = ''
+
+        if user:
+            fr = user
+            if password:
+                fr += ':%s' % password
+            fr += '@%s' % host
+        else:
+            fr = host
+        fr += ':%s' % path
+
+        cmd = 'scp -B -r %s %s %s/' % (
+            portarg,
+            fr,
+            dldir
+        )
+
+        bb.fetch2.check_network_access(d, cmd, urldata.url)
+
+        runfetchcmd(cmd, d)
+

bitbake/lib/bb/fetch2/svn.py

@@ -0,0 +1,193 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementation for svn.
+
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+# Copyright (C) 2004        Marcin Juszkiewicz
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import os
+import sys
+import logging
+import bb
+import re
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import FetchError
+from   bb.fetch2 import MissingParameterError
+from   bb.fetch2 import runfetchcmd
+from   bb.fetch2 import logger
+
+class Svn(FetchMethod):
+    """Class to fetch a module or modules from svn repositories"""
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with svn.
+        """
+        return ud.type in ['svn']
+
+    def urldata_init(self, ud, d):
+        """
+        init svn specific variable within url data
+        """
+        if not "module" in ud.parm:
+            raise MissingParameterError('module', ud.url)
+
+        ud.basecmd = d.getVar('FETCHCMD_svn')
+
+        ud.module = ud.parm["module"]
+
+        if not "path_spec" in ud.parm:
+            ud.path_spec = ud.module
+        else:
+            ud.path_spec = ud.parm["path_spec"]
+
+        # Create paths to svn checkouts
+        relpath = self._strip_leading_slashes(ud.path)
+        ud.pkgdir = os.path.join(d.expand('${SVNDIR}'), ud.host, relpath)
+        ud.moddir = os.path.join(ud.pkgdir, ud.module)
+
+        ud.setup_revisions(d)
+
+        if 'rev' in ud.parm:
+            ud.revision = ud.parm['rev']
+
+        ud.localfile = d.expand('%s_%s_%s_%s_.tar.gz' % (ud.module.replace('/', '.'), ud.host, ud.path.replace('/', '.'), ud.revision))
+
+    def _buildsvncommand(self, ud, d, command):
+        """
+        Build up an svn commandline based on ud
+        command is "fetch", "update", "info"
+        """
+
+        proto = ud.parm.get('protocol', 'svn')
+
+        svn_ssh = None
+        if proto == "svn+ssh" and "ssh" in ud.parm:
+            svn_ssh = ud.parm["ssh"]
+
+        svnroot = ud.host + ud.path
+
+        options = []
+
+        options.append("--no-auth-cache")
+
+        if ud.user:
+            options.append("--username %s" % ud.user)
+
+        if ud.pswd:
+            options.append("--password %s" % ud.pswd)
+
+        if command == "info":
+            svncmd = "%s info %s %s://%s/%s/" % (ud.basecmd, " ".join(options), proto, svnroot, ud.module)
+        elif command == "log1":
+            svncmd = "%s log --limit 1 %s %s://%s/%s/" % (ud.basecmd, " ".join(options), proto, svnroot, ud.module)
+        else:
+            suffix = ""
+            if ud.revision:
+                options.append("-r %s" % ud.revision)
+                suffix = "@%s" % (ud.revision)
+
+            if command == "fetch":
+                transportuser = ud.parm.get("transportuser", "")
+                svncmd = "%s co %s %s://%s%s/%s%s %s" % (ud.basecmd, " ".join(options), proto, transportuser, svnroot, ud.module, suffix, ud.path_spec)
+            elif command == "update":
+                svncmd = "%s update %s" % (ud.basecmd, " ".join(options))
+            else:
+                raise FetchError("Invalid svn command %s" % command, ud.url)
+
+        if svn_ssh:
+            svncmd = "SVN_SSH=\"%s\" %s" % (svn_ssh, svncmd)
+
+        return svncmd
+
+    def download(self, ud, d):
+        """Fetch url"""
+
+        logger.debug(2, "Fetch: checking for module directory '" + ud.moddir + "'")
+
+        if os.access(os.path.join(ud.moddir, '.svn'), os.R_OK):
+            svnupdatecmd = self._buildsvncommand(ud, d, "update")
+            logger.info("Update " + ud.url)
+            # We need to attempt to run svn upgrade first in case its an older working format
+            try:
+                runfetchcmd(ud.basecmd + " upgrade", d, workdir=ud.moddir)
+            except FetchError:
+                pass
+            logger.debug(1, "Running %s", svnupdatecmd)
+            bb.fetch2.check_network_access(d, svnupdatecmd, ud.url)
+            runfetchcmd(svnupdatecmd, d, workdir=ud.moddir)
+        else:
+            svnfetchcmd = self._buildsvncommand(ud, d, "fetch")
+            logger.info("Fetch " + ud.url)
+            # check out sources there
+            bb.utils.mkdirhier(ud.pkgdir)
+            logger.debug(1, "Running %s", svnfetchcmd)
+            bb.fetch2.check_network_access(d, svnfetchcmd, ud.url)
+            runfetchcmd(svnfetchcmd, d, workdir=ud.pkgdir)
+
+        scmdata = ud.parm.get("scmdata", "")
+        if scmdata == "keep":
+            tar_flags = ""
+        else:
+            tar_flags = "--exclude='.svn'"
+
+        # tar them up to a defined filename
+        runfetchcmd("tar %s -czf %s %s" % (tar_flags, ud.localpath, ud.path_spec), d,
+                    cleanup=[ud.localpath], workdir=ud.pkgdir)
+
+    def clean(self, ud, d):
+        """ Clean SVN specific files and dirs """
+
+        bb.utils.remove(ud.localpath)
+        bb.utils.remove(ud.moddir, True)
+        
+
+    def supports_srcrev(self):
+        return True
+
+    def _revision_key(self, ud, d, name):
+        """
+        Return a unique key for the url
+        """
+        return "svn:" + ud.moddir
+
+    def _latest_revision(self, ud, d, name):
+        """
+        Return the latest upstream revision number
+        """
+        bb.fetch2.check_network_access(d, self._buildsvncommand(ud, d, "log1"), ud.url)
+
+        output = runfetchcmd("LANG=C LC_ALL=C " + self._buildsvncommand(ud, d, "log1"), d, True)
+
+        # skip the first line, as per output of svn log
+        # then we expect the revision on the 2nd line
+        revision = re.search('^r([0-9]*)', output.splitlines()[1]).group(1)
+
+        return revision
+
+    def sortable_revision(self, ud, d, name):
+        """
+        Return a sortable revision number which in our case is the revision number
+        """
+
+        return False, self._build_revision(ud, d)
+
+    def _build_revision(self, ud, d):
+        return ud.revision

bitbake/lib/bb/fetch2/wget.py

@@ -0,0 +1,624 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+"""
+BitBake 'Fetch' implementations
+
+Classes for obtaining upstream sources for the
+BitBake build tools.
+
+"""
+
+# Copyright (C) 2003, 2004  Chris Larson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
+
+import re
+import tempfile
+import subprocess
+import os
+import logging
+import errno
+import bb
+import bb.progress
+import urllib.request, urllib.parse, urllib.error
+from   bb.fetch2 import FetchMethod
+from   bb.fetch2 import FetchError
+from   bb.fetch2 import logger
+from   bb.fetch2 import runfetchcmd
+from   bb.utils import export_proxies
+from   bs4 import BeautifulSoup
+from   bs4 import SoupStrainer
+
+class WgetProgressHandler(bb.progress.LineFilterProgressHandler):
+    """
+    Extract progress information from wget output.
+    Note: relies on --progress=dot (with -v or without -q/-nv) being
+    specified on the wget command line.
+    """
+    def __init__(self, d):
+        super(WgetProgressHandler, self).__init__(d)
+        # Send an initial progress event so the bar gets shown
+        self._fire_progress(0)
+
+    def writeline(self, line):
+        percs = re.findall(r'(\d+)%\s+([\d.]+[A-Z])', line)
+        if percs:
+            progress = int(percs[-1][0])
+            rate = percs[-1][1] + '/s'
+            self.update(progress, rate)
+            return False
+        return True
+
+
+class Wget(FetchMethod):
+    """Class to fetch urls via 'wget'"""
+    def supports(self, ud, d):
+        """
+        Check to see if a given url can be fetched with wget.
+        """
+        return ud.type in ['http', 'https', 'ftp']
+
+    def recommends_checksum(self, urldata):
+        return True
+
+    def urldata_init(self, ud, d):
+        if 'protocol' in ud.parm:
+            if ud.parm['protocol'] == 'git':
+                raise bb.fetch2.ParameterError("Invalid protocol - if you wish to fetch from a git repository using http, you need to instead use the git:// prefix with protocol=http", ud.url)
+
+        if 'downloadfilename' in ud.parm:
+            ud.basename = ud.parm['downloadfilename']
+        else:
+            ud.basename = os.path.basename(ud.path)
+
+        ud.localfile = d.expand(urllib.parse.unquote(ud.basename))
+        if not ud.localfile:
+            ud.localfile = d.expand(urllib.parse.unquote(ud.host + ud.path).replace("/", "."))
+
+        self.basecmd = d.getVar("FETCHCMD_wget") or "/usr/bin/env wget -t 2 -T 30 --passive-ftp --no-check-certificate"
+
+    def _runwget(self, ud, d, command, quiet, workdir=None):
+
+        progresshandler = WgetProgressHandler(d)
+
+        logger.debug(2, "Fetching %s using command '%s'" % (ud.url, command))
+        bb.fetch2.check_network_access(d, command, ud.url)
+        runfetchcmd(command + ' --progress=dot -v', d, quiet, log=progresshandler, workdir=workdir)
+
+    def download(self, ud, d):
+        """Fetch urls"""
+
+        fetchcmd = self.basecmd
+
+        if 'downloadfilename' in ud.parm:
+            dldir = d.getVar("DL_DIR")
+            bb.utils.mkdirhier(os.path.dirname(dldir + os.sep + ud.localfile))
+            fetchcmd += " -O " + dldir + os.sep + ud.localfile
+
+        if ud.user and ud.pswd:
+            fetchcmd += " --user=%s --password=%s --auth-no-challenge" % (ud.user, ud.pswd)
+
+        uri = ud.url.split(";")[0]
+        if os.path.exists(ud.localpath):
+            # file exists, but we didnt complete it.. trying again..
+            fetchcmd += d.expand(" -c -P ${DL_DIR} '%s'" % uri)
+        else:
+            fetchcmd += d.expand(" -P ${DL_DIR} '%s'" % uri)
+
+        self._runwget(ud, d, fetchcmd, False)
+
+        # Sanity check since wget can pretend it succeed when it didn't
+        # Also, this used to happen if sourceforge sent us to the mirror page
+        if not os.path.exists(ud.localpath):
+            raise FetchError("The fetch command returned success for url %s but %s doesn't exist?!" % (uri, ud.localpath), uri)
+
+        if os.path.getsize(ud.localpath) == 0:
+            os.remove(ud.localpath)
+            raise FetchError("The fetch of %s resulted in a zero size file?! Deleting and failing since this isn't right." % (uri), uri)
+
+        return True
+
+    def checkstatus(self, fetch, ud, d, try_again=True):
+        import urllib.request, urllib.error, urllib.parse, socket, http.client
+        from urllib.response import addinfourl
+        from bb.fetch2 import FetchConnectionCache
+
+        class HTTPConnectionCache(http.client.HTTPConnection):
+            if fetch.connection_cache:
+                def connect(self):
+                    """Connect to the host and port specified in __init__."""
+
+                    sock = fetch.connection_cache.get_connection(self.host, self.port)
+                    if sock:
+                        self.sock = sock
+                    else:
+                        self.sock = socket.create_connection((self.host, self.port),
+                                    self.timeout, self.source_address)
+                        fetch.connection_cache.add_connection(self.host, self.port, self.sock)
+
+                    if self._tunnel_host:
+                        self._tunnel()
+
+        class CacheHTTPHandler(urllib.request.HTTPHandler):
+            def http_open(self, req):
+                return self.do_open(HTTPConnectionCache, req)
+
+            def do_open(self, http_class, req):
+                """Return an addinfourl object for the request, using http_class.
+
+                http_class must implement the HTTPConnection API from httplib.
+                The addinfourl return value is a file-like object.  It also
+                has methods and attributes including:
+                    - info(): return a mimetools.Message object for the headers
+                    - geturl(): return the original request URL
+                    - code: HTTP status code
+                """
+                host = req.host
+                if not host:
+                    raise urlllib2.URLError('no host given')
+
+                h = http_class(host, timeout=req.timeout) # will parse host:port
+                h.set_debuglevel(self._debuglevel)
+
+                headers = dict(req.unredirected_hdrs)
+                headers.update(dict((k, v) for k, v in list(req.headers.items())
+                            if k not in headers))
+
+                # We want to make an HTTP/1.1 request, but the addinfourl
+                # class isn't prepared to deal with a persistent connection.
+                # It will try to read all remaining data from the socket,
+                # which will block while the server waits for the next request.
+                # So make sure the connection gets closed after the (only)
+                # request.
+
+                # Don't close connection when connection_cache is enabled,
+                if fetch.connection_cache is None: 
+                    headers["Connection"] = "close"
+                else:
+                    headers["Connection"] = "Keep-Alive" # Works for HTTP/1.0
+
+                headers = dict(
+                    (name.title(), val) for name, val in list(headers.items()))
+
+                if req._tunnel_host:
+                    tunnel_headers = {}
+                    proxy_auth_hdr = "Proxy-Authorization"
+                    if proxy_auth_hdr in headers:
+                        tunnel_headers[proxy_auth_hdr] = headers[proxy_auth_hdr]
+                        # Proxy-Authorization should not be sent to origin
+                        # server.
+                        del headers[proxy_auth_hdr]
+                    h.set_tunnel(req._tunnel_host, headers=tunnel_headers)
+
+                try:
+                    h.request(req.get_method(), req.selector, req.data, headers)
+                except socket.error as err: # XXX what error?
+                    # Don't close connection when cache is enabled.
+                    # Instead, try to detect connections that are no longer
+                    # usable (for example, closed unexpectedly) and remove
+                    # them from the cache.
+                    if fetch.connection_cache is None:
+                        h.close()
+                    elif isinstance(err, OSError) and err.errno == errno.EBADF:
+                        # This happens when the server closes the connection despite the Keep-Alive.
+                        # Apparently urllib then uses the file descriptor, expecting it to be
+                        # connected, when in reality the connection is already gone.
+                        # We let the request fail and expect it to be
+                        # tried once more ("try_again" in check_status()),
+                        # with the dead connection removed from the cache.
+                        # If it still fails, we give up, which can happend for bad
+                        # HTTP proxy settings.
+                        fetch.connection_cache.remove_connection(h.host, h.port)
+                    raise urllib.error.URLError(err)
+                else:
+                    try:
+                        r = h.getresponse(buffering=True)
+                    except TypeError: # buffering kw not supported
+                        r = h.getresponse()
+
+                # Pick apart the HTTPResponse object to get the addinfourl
+                # object initialized properly.
+
+                # Wrap the HTTPResponse object in socket's file object adapter
+                # for Windows.  That adapter calls recv(), so delegate recv()
+                # to read().  This weird wrapping allows the returned object to
+                # have readline() and readlines() methods.
+
+                # XXX It might be better to extract the read buffering code
+                # out of socket._fileobject() and into a base class.
+                r.recv = r.read
+
+                # no data, just have to read
+                r.read()
+                class fp_dummy(object):
+                    def read(self):
+                        return ""
+                    def readline(self):
+                        return ""
+                    def close(self):
+                        pass
+
+                resp = addinfourl(fp_dummy(), r.msg, req.get_full_url())
+                resp.code = r.status
+                resp.msg = r.reason
+
+                # Close connection when server request it.
+                if fetch.connection_cache is not None:
+                    if 'Connection' in r.msg and r.msg['Connection'] == 'close':
+                        fetch.connection_cache.remove_connection(h.host, h.port)
+
+                return resp
+
+        class HTTPMethodFallback(urllib.request.BaseHandler):
+            """
+            Fallback to GET if HEAD is not allowed (405 HTTP error)
+            """
+            def http_error_405(self, req, fp, code, msg, headers):
+                fp.read()
+                fp.close()
+
+                newheaders = dict((k,v) for k,v in list(req.headers.items())
+                                  if k.lower() not in ("content-length", "content-type"))
+                return self.parent.open(urllib.request.Request(req.get_full_url(),
+                                                        headers=newheaders,
+                                                        origin_req_host=req.origin_req_host,
+                                                        unverifiable=True))
+
+            """
+            Some servers (e.g. GitHub archives, hosted on Amazon S3) return 403
+            Forbidden when they actually mean 405 Method Not Allowed.
+            """
+            http_error_403 = http_error_405
+
+
+        class FixedHTTPRedirectHandler(urllib.request.HTTPRedirectHandler):
+            """
+            urllib2.HTTPRedirectHandler resets the method to GET on redirect,
+            when we want to follow redirects using the original method.
+            """
+            def redirect_request(self, req, fp, code, msg, headers, newurl):
+                newreq = urllib.request.HTTPRedirectHandler.redirect_request(self, req, fp, code, msg, headers, newurl)
+                newreq.get_method = lambda: req.get_method()
+                return newreq
+        exported_proxies = export_proxies(d)
+
+        handlers = [FixedHTTPRedirectHandler, HTTPMethodFallback]
+        if export_proxies:
+            handlers.append(urllib.request.ProxyHandler())
+        handlers.append(CacheHTTPHandler())
+        # XXX: Since Python 2.7.9 ssl cert validation is enabled by default
+        # see PEP-0476, this causes verification errors on some https servers
+        # so disable by default.
+        import ssl
+        if hasattr(ssl, '_create_unverified_context'):
+            handlers.append(urllib.request.HTTPSHandler(context=ssl._create_unverified_context()))
+        opener = urllib.request.build_opener(*handlers)
+
+        try:
+            uri = ud.url.split(";")[0]
+            r = urllib.request.Request(uri)
+            r.get_method = lambda: "HEAD"
+            # Some servers (FusionForge, as used on Alioth) require that the
+            # optional Accept header is set.
+            r.add_header("Accept", "*/*")
+            def add_basic_auth(login_str, request):
+                '''Adds Basic auth to http request, pass in login:password as string'''
+                import base64
+                encodeuser = base64.b64encode(login_str.encode('utf-8')).decode("utf-8")
+                authheader =  "Basic %s" % encodeuser
+                r.add_header("Authorization", authheader)
+
+            if ud.user:
+                add_basic_auth(ud.user, r)
+
+            try:
+                import netrc, urllib.parse
+                n = netrc.netrc()
+                login, unused, password = n.authenticators(urllib.parse.urlparse(uri).hostname)
+                add_basic_auth("%s:%s" % (login, password), r)
+            except (TypeError, ImportError, IOError, netrc.NetrcParseError):
+                 pass
+
+            opener.open(r)
+        except urllib.error.URLError as e:
+            if try_again:
+                logger.debug(2, "checkstatus: trying again")
+                return self.checkstatus(fetch, ud, d, False)
+            else:
+                # debug for now to avoid spamming the logs in e.g. remote sstate searches
+                logger.debug(2, "checkstatus() urlopen failed: %s" % e)
+                return False
+        return True
+
+    def _parse_path(self, regex, s):
+        """
+        Find and group name, version and archive type in the given string s
+        """
+
+        m = regex.search(s)
+        if m:
+            pname = ''
+            pver = ''
+            ptype = ''
+
+            mdict = m.groupdict()
+            if 'name' in mdict.keys():
+                pname = mdict['name']
+            if 'pver' in mdict.keys():
+                pver = mdict['pver']
+            if 'type' in mdict.keys():
+                ptype = mdict['type']
+
+            bb.debug(3, "_parse_path: %s, %s, %s" % (pname, pver, ptype))
+
+            return (pname, pver, ptype)
+
+        return None
+
+    def _modelate_version(self, version):
+        if version[0] in ['.', '-']:
+            if version[1].isdigit():
+                version = version[1] + version[0] + version[2:len(version)]
+            else:
+                version = version[1:len(version)]
+
+        version = re.sub('-', '.', version)
+        version = re.sub('_', '.', version)
+        version = re.sub('(rc)+', '.1000.', version)
+        version = re.sub('(beta)+', '.100.', version)
+        version = re.sub('(alpha)+', '.10.', version)
+        if version[0] == 'v':
+            version = version[1:len(version)]
+        return version
+
+    def _vercmp(self, old, new):
+        """
+        Check whether 'new' is newer than 'old' version. We use existing vercmp() for the
+        purpose. PE is cleared in comparison as it's not for build, and PR is cleared too
+        for simplicity as it's somehow difficult to get from various upstream format
+        """
+
+        (oldpn, oldpv, oldsuffix) = old
+        (newpn, newpv, newsuffix) = new
+
+        """
+        Check for a new suffix type that we have never heard of before
+        """
+        if (newsuffix):
+            m = self.suffix_regex_comp.search(newsuffix)
+            if not m:
+                bb.warn("%s has a possible unknown suffix: %s" % (newpn, newsuffix))
+                return False
+
+        """
+        Not our package so ignore it
+        """
+        if oldpn != newpn:
+            return False
+
+        oldpv = self._modelate_version(oldpv)
+        newpv = self._modelate_version(newpv)
+
+        return bb.utils.vercmp(("0", oldpv, ""), ("0", newpv, ""))
+
+    def _fetch_index(self, uri, ud, d):
+        """
+        Run fetch checkstatus to get directory information
+        """
+        f = tempfile.NamedTemporaryFile()
+        with tempfile.TemporaryDirectory(prefix="wget-index-") as workdir, tempfile.NamedTemporaryFile(dir=workdir, prefix="wget-listing-") as f:
+            agent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.12) Gecko/20101027 Ubuntu/9.10 (karmic) Firefox/3.6.12"
+            fetchcmd = self.basecmd
+            fetchcmd += " -O " + f.name + " --user-agent='" + agent + "' '" + uri + "'"
+            try:
+                self._runwget(ud, d, fetchcmd, True, workdir=workdir)
+                fetchresult = f.read()
+            except bb.fetch2.BBFetchException:
+                fetchresult = ""
+
+        return fetchresult
+
+    def _check_latest_version(self, url, package, package_regex, current_version, ud, d):
+        """
+        Return the latest version of a package inside a given directory path
+        If error or no version, return ""
+        """
+        valid = 0
+        version = ['', '', '']
+
+        bb.debug(3, "VersionURL: %s" % (url))
+        soup = BeautifulSoup(self._fetch_index(url, ud, d), "html.parser", parse_only=SoupStrainer("a"))
+        if not soup:
+            bb.debug(3, "*** %s NO SOUP" % (url))
+            return ""
+
+        for line in soup.find_all('a', href=True):
+            bb.debug(3, "line['href'] = '%s'" % (line['href']))
+            bb.debug(3, "line = '%s'" % (str(line)))
+
+            newver = self._parse_path(package_regex, line['href'])
+            if not newver:
+                newver = self._parse_path(package_regex, str(line))
+
+            if newver:
+                bb.debug(3, "Upstream version found: %s" % newver[1])
+                if valid == 0:
+                    version = newver
+                    valid = 1
+                elif self._vercmp(version, newver) < 0:
+                    version = newver
+                
+        pupver = re.sub('_', '.', version[1])
+
+        bb.debug(3, "*** %s -> UpstreamVersion = %s (CurrentVersion = %s)" %
+                (package, pupver or "N/A", current_version[1]))
+
+        if valid:
+            return pupver
+
+        return ""
+
+    def _check_latest_version_by_dir(self, dirver, package, package_regex,
+            current_version, ud, d):
+        """
+            Scan every directory in order to get upstream version.
+        """
+        version_dir = ['', '', '']
+        version = ['', '', '']
+
+        dirver_regex = re.compile("(?P<pfx>\D*)(?P<ver>(\d+[\.\-_])+(\d+))")
+        s = dirver_regex.search(dirver)
+        if s:
+            version_dir[1] = s.group('ver')
+        else:
+            version_dir[1] = dirver
+
+        dirs_uri = bb.fetch.encodeurl([ud.type, ud.host,
+                ud.path.split(dirver)[0], ud.user, ud.pswd, {}])
+        bb.debug(3, "DirURL: %s, %s" % (dirs_uri, package))
+
+        soup = BeautifulSoup(self._fetch_index(dirs_uri, ud, d), "html.parser", parse_only=SoupStrainer("a"))
+        if not soup:
+            return version[1]
+
+        for line in soup.find_all('a', href=True):
+            s = dirver_regex.search(line['href'].strip("/"))
+            if s:
+                sver = s.group('ver')
+
+                # When prefix is part of the version directory it need to
+                # ensure that only version directory is used so remove previous
+                # directories if exists.
+                #
+                # Example: pfx = '/dir1/dir2/v' and version = '2.5' the expected
+                # result is v2.5.
+                spfx = s.group('pfx').split('/')[-1]
+
+                version_dir_new = ['', sver, '']
+                if self._vercmp(version_dir, version_dir_new) <= 0:
+                    dirver_new = spfx + sver
+                    path = ud.path.replace(dirver, dirver_new, True) \
+                        .split(package)[0]
+                    uri = bb.fetch.encodeurl([ud.type, ud.host, path,
+                        ud.user, ud.pswd, {}])
+
+                    pupver = self._check_latest_version(uri,
+                            package, package_regex, current_version, ud, d)
+                    if pupver:
+                        version[1] = pupver
+
+                    version_dir = version_dir_new
+
+        return version[1]
+
+    def _init_regexes(self, package, ud, d):
+        """
+        Match as many patterns as possible such as:
+                gnome-common-2.20.0.tar.gz (most common format)
+                gtk+-2.90.1.tar.gz
+                xf86-input-synaptics-12.6.9.tar.gz
+                dri2proto-2.3.tar.gz
+                blktool_4.orig.tar.gz
+                libid3tag-0.15.1b.tar.gz
+                unzip552.tar.gz
+                icu4c-3_6-src.tgz
+                genext2fs_1.3.orig.tar.gz
+                gst-fluendo-mp3
+        """
+        # match most patterns which uses "-" as separator to version digits
+        pn_prefix1 = "[a-zA-Z][a-zA-Z0-9]*([-_][a-zA-Z]\w+)*\+?[-_]"
+        # a loose pattern such as for unzip552.tar.gz
+        pn_prefix2 = "[a-zA-Z]+"
+        # a loose pattern such as for 80325-quicky-0.4.tar.gz
+        pn_prefix3 = "[0-9]+[-]?[a-zA-Z]+"
+        # Save the Package Name (pn) Regex for use later
+        pn_regex = "(%s|%s|%s)" % (pn_prefix1, pn_prefix2, pn_prefix3)
+
+        # match version
+        pver_regex = "(([A-Z]*\d+[a-zA-Z]*[\.\-_]*)+)"
+
+        # match arch
+        parch_regex = "-source|_all_"
+
+        # src.rpm extension was added only for rpm package. Can be removed if the rpm
+        # packaged will always be considered as having to be manually upgraded
+        psuffix_regex = "(tar\.gz|tgz|tar\.bz2|zip|xz|tar\.lz|rpm|bz2|orig\.tar\.gz|tar\.xz|src\.tar\.gz|src\.tgz|svnr\d+\.tar\.bz2|stable\.tar\.gz|src\.rpm)"
+
+        # match name, version and archive type of a package
+        package_regex_comp = re.compile("(?P<name>%s?\.?v?)(?P<pver>%s)(?P<arch>%s)?[\.-](?P<type>%s$)"
+                                                    % (pn_regex, pver_regex, parch_regex, psuffix_regex))
+        self.suffix_regex_comp = re.compile(psuffix_regex)
+
+        # compile regex, can be specific by package or generic regex
+        pn_regex = d.getVar('UPSTREAM_CHECK_REGEX')
+        if pn_regex:
+            package_custom_regex_comp = re.compile(pn_regex)
+        else:
+            version = self._parse_path(package_regex_comp, package)
+            if version:
+                package_custom_regex_comp = re.compile(
+                    "(?P<name>%s)(?P<pver>%s)(?P<arch>%s)?[\.-](?P<type>%s)" %
+                    (re.escape(version[0]), pver_regex, parch_regex, psuffix_regex))
+            else:
+                package_custom_regex_comp = None
+
+        return package_custom_regex_comp
+
+    def latest_versionstring(self, ud, d):
+        """
+        Manipulate the URL and try to obtain the latest package version
+
+        sanity check to ensure same name and type.
+        """
+        package = ud.path.split("/")[-1]
+        current_version = ['', d.getVar('PV'), '']
+
+        """possible to have no version in pkg name, such as spectrum-fw"""
+        if not re.search("\d+", package):
+            current_version[1] = re.sub('_', '.', current_version[1])
+            current_version[1] = re.sub('-', '.', current_version[1])
+            return (current_version[1], '')
+
+        package_regex = self._init_regexes(package, ud, d)
+        if package_regex is None:
+            bb.warn("latest_versionstring: package %s don't match pattern" % (package))
+            return ('', '')
+        bb.debug(3, "latest_versionstring, regex: %s" % (package_regex.pattern))
+
+        uri = ""
+        regex_uri = d.getVar("UPSTREAM_CHECK_URI")
+        if not regex_uri:
+            path = ud.path.split(package)[0]
+
+            # search for version matches on folders inside the path, like:
+            # "5.7" in http://download.gnome.org/sources/${PN}/5.7/${PN}-${PV}.tar.gz
+            dirver_regex = re.compile("(?P<dirver>[^/]*(\d+\.)*\d+([-_]r\d+)*)/")
+            m = dirver_regex.search(path)
+            if m:
+                pn = d.getVar('PN')
+                dirver = m.group('dirver')
+
+                dirver_pn_regex = re.compile("%s\d?" % (re.escape(pn)))
+                if not dirver_pn_regex.search(dirver):
+                    return (self._check_latest_version_by_dir(dirver,
+                        package, package_regex, current_version, ud, d), '')
+
+            uri = bb.fetch.encodeurl([ud.type, ud.host, path, ud.user, ud.pswd, {}])
+        else:
+            uri = regex_uri
+
+        return (self._check_latest_version(uri, package, package_regex,
+                current_version, ud, d), '')