bitbake: bitbake-user-manual: Fixed porno hack for hello world example

Someone hacked the http://hambedded site or it was moved and some
links to that site in the BB manual had been hijacked to point to
an entry portal for a pornography site.  Replaced the link with an
archived version that restores the integrity of the links.

(Bitbake rev: daa0aa05a04d8d20473a05b5b5878610e40ef820)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

.gitignore

@@ -16,8 +16,8 @@ hob-image-*.bb
 *~
 !meta-yocto
 !meta-yocto-bsp
-bitbake/doc/manual/html/
-bitbake/doc/manual/pdf/
-bitbake/doc/manual/txt/
-bitbake/doc/manual/xhtml/
+!meta-yocto-imported
+documentation/user-manual/user-manual.html
+documentation/user-manual/user-manual.pdf
+documentation/user-manual/user-manual.tgz
 pull-*/

.templateconf

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

LICENSE

@@ -1,14 +1,14 @@
-Different components of Poky are under different licenses (a mix of 
-MIT and GPLv2). Please see:
+Different components of OpenEmbedded are under different licenses (a mix
+of MIT and GPLv2). Please see:
 
-bitbake/COPYING (GPLv2)
+meta/COPYING.GPLv2 (GPLv2)
 meta/COPYING.MIT (MIT)
-meta-extras/COPYING.MIT (MIT)
+meta-selftest/COPYING.MIT (MIT)
+meta-skeleton/COPYING.MIT (MIT)
 
-which cover the components in those subdirectories. This means all 
-metadata is MIT licensed unless otherwise stated. Source code included 
-in tree for individual recipes is under the LICENSE stated in the .bb 
-file for those software projects unless otherwise stated.
+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

@@ -22,7 +22,7 @@ reference manual which can be found at:
 
 OpenEmbedded-Core is a layer containing the core metadata for current versions
 of OpenEmbedded. It is distro-less (can build a functional image with
-DISTRO = "") and contains only emulated machine support.
+DISTRO = "nodistro") and contains only emulated machine support.
 
 For information about OpenEmbedded, see the OpenEmbedded website:
     http://www.openembedded.org/

README.hardware

@@ -46,13 +46,19 @@ Hardware Reference Boards
 
 The following boards are supported by the meta-yocto-bsp layer:
 
-  * Texas Instruments Beagleboard (beagleboard)
+  * Texas Instruments Beaglebone (beaglebone)
   * Freescale MPC8315E-RDB (mpc8315e-rdb)
-  * Ubiquiti Networks RouterStation Pro (routerstationpro)
 
 For more information see the board's section below. The appropriate MACHINE
 variable value corresponding to the board is given in brackets.
 
+Reference Board Maintenance
+===========================
+
+Send pull requests, patches, comments or questions about meta-yocto-bsps to poky@yoctoproject.org
+
+Maintainers: Kevin Hao <kexin.hao@windriver.com>
+             Bruce Ashfield <bruce.ashfield@windriver.com>
 
 Consumer Devices
 ================
@@ -60,6 +66,7 @@ Consumer Devices
 The following consumer devices are supported by the meta-yocto-bsp layer:
 
   * Intel x86 based PCs and devices (genericx86)
+  * Ubiquiti Networks EdgeRouter Lite (edgerouter)
 
 For more information see the device's section below. The appropriate MACHINE
 variable value corresponding to the device is given in brackets.
@@ -180,30 +187,28 @@ USB Device:
   http://git.kernel.org/?p=boot/syslinux/syslinux.git;a=blob_plain;f=doc/usbkey.txt;hb=HEAD
 
 
-Texas Instruments Beagleboard (beagleboard)
-===========================================
+Texas Instruments Beaglebone (beaglebone)
+=========================================
 
-The Beagleboard is an ARM Cortex-A8 development board with USB, DVI-D, S-Video,
-2D/3D accelerated graphics, audio, serial, JTAG, and SD/MMC. The xM adds a
-faster CPU, more RAM, an ethernet port, more USB ports, microSD, and removes
-the NAND flash. The beagleboard MACHINE is tested on the following platforms:
+The Beaglebone is an ARM Cortex-A8 development board with USB, Ethernet, 2D/3D
+accelerated graphics, audio, serial, JTAG, and SD/MMC. The Black adds a faster
+CPU, more RAM, eMMC flash and a micro HDMI port. The beaglebone MACHINE is
+tested on the following platforms:
 
-  o Beagleboard C4
-  o Beagleboard xM rev A & B
+  o Beaglebone Black A6
+  o Beaglebone A6 (the original "White" model)
 
-The Beagleboard C4 has NAND, while the xM does not. For the sake of simplicity,
-these instructions assume you have erased the NAND on the C4 so its boot
-behavior matches that of the xM. To do this, issue the following commands from
-the u-boot prompt (note that the unlock may be unecessary depending on the
-version of u-boot installed on your board and only one of the erase commands
-will succeed):
+The Beaglebone Black has eMMC, while the White does not. Pressing the USER/BOOT
+button when powering on will temporarily change the boot order. But for the sake
+of simplicity, these instructions assume you have erased the eMMC on the Black,
+so its boot behavior matches that of the White and boots off of SD card. To do
+this, issue the following commands from the u-boot prompt:
 
-    # nand unlock
-    # nand erase
-    # nand erase.chip
+    # mmc dev 1
+    # mmc erase 0 512
 
 To further tailor these instructions for your board, please refer to the
-documentation at http://www.beagleboard.org.
+documentation at http://www.beagleboard.org/bone and http://www.beagleboard.org/black
 
 From a Linux system with access to the image files perform the following steps
 as root, replacing mmcblk0* with the SD card device on your machine (such as sdc
@@ -211,11 +216,11 @@ if used via a usb card reader):
 
   1. Partition and format an SD card:
      # fdisk -lu /dev/mmcblk0
-     
+
      Disk /dev/mmcblk0: 3951 MB, 3951034368 bytes
      255 heads, 63 sectors/track, 480 cylinders, total 7716864 sectors
      Units = sectors of 1 * 512 = 512 bytes
-     
+
              Device Boot      Start         End      Blocks  Id System
      /dev/mmcblk0p1   *          63      144584       72261   c Win95 FAT32 (LBA)
      /dev/mmcblk0p2          144585      465884      160650  83 Linux
@@ -223,51 +228,40 @@ if used via a usb card reader):
      # mkfs.vfat -F 16 -n "boot" /dev/mmcblk0p1
      # mke2fs -j -L "root" /dev/mmcblk0p2
 
-  The following assumes the SD card partition 1 and 2 are mounted at
+  The following assumes the SD card partitions 1 and 2 are mounted at
   /media/boot and /media/root respectively. Removing the card and reinserting
   it will do just that on most modern Linux desktop environments.
-  
+
   The files referenced below are made available after the build in
   build/tmp/deploy/images.
 
   2. Install the boot loaders
-     # cp MLO-beagleboard /media/boot/MLO
-     # cp u-boot-beagleboard.bin /media/boot/u-boot.bin
+     # cp MLO-beaglebone /media/boot/MLO
+     # cp u-boot-beaglebone.img /media/boot/u-boot.img
 
   3. Install the root filesystem
-     # tar x -C /media/root -f core-image-$IMAGE_TYPE-beagleboard.tar.bz2
-     # tar x -C /media/root -f modules-$KERNEL_VERSION-beagleboard.tgz
+     # tar x -C /media/root -f core-image-$IMAGE_TYPE-beaglebone.tar.bz2
 
-  4. Install the kernel uImage
-     # cp uImage-beagleboard.bin /media/boot/uImage
+  4. If using core-image-base or core-image-sato images, the SD card is ready
+     and rootfs already contains the kernel, modules and device tree (DTB)
+     files necessary to be booted with U-boot's default configuration, so
+     skip directly to step 8.
+     For core-image-minimal, proceed through next steps.
 
-  5. Prepare a u-boot script to simplify the boot process
-     The Beagleboard can be made to boot at this point from the u-boot command
-     shell. To automate this process, generate a user.scr script as follows.
+  5. If using core-image-minimal rootfs, install the modules
+     # tar x -C /media/root -f modules-beaglebone.tgz
 
-     Install uboot-mkimage (from uboot-mkimage on Ubuntu or uboot-tools on Fedora).
+  6. If using core-image-minimal rootfs, install the kernel uImage into /boot
+     directory of rootfs
+     # cp uImage-beaglebone.bin /media/root/boot/uImage
 
-     Prepare a script config:
+  7. If using core-image-minimal rootfs, also install device tree (DTB) files
+     into /boot directory of rootfs
+     # cp uImage-am335x-bone.dtb /media/root/boot/am335x-bone.dtb
+     # cp uImage-am335x-boneblack.dtb /media/root/boot/am335x-boneblack.dtb
 
-     # (cat << EOF
-     setenv bootcmd 'mmc init; fatload mmc 0:1 0x80300000 uImage; bootm 0x80300000'
-     setenv bootargs 'console=tty0 console=ttyO2,115200n8 root=/dev/mmcblk0p2 rootwait rootfstype=ext3 ro'
-     boot
-     EOF
-     ) > serial-boot.cmd
-     # mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n "Core Minimal" -d ./serial-boot.cmd ./boot.scr
-     # cp boot.scr /media/boot
-
-   6. Unmount the SD partitions, insert the SD card into the Beagleboard, and
-      boot the Beagleboard
-
-Note: As of the 2.6.37 linux-yocto kernel recipe, the Beagleboard uses the
-      OMAP_SERIAL device (ttyO2). If you are using an older kernel, such as the
-      2.6.34 linux-yocto-stable, be sure to replace ttyO2 with ttyS2 above. You
-      should also override the machine SERIAL_CONSOLE in your local.conf in
-      order to setup the getty on the serial line:
-
-      SERIAL_CONSOLE_beagleboard = "115200 ttyS2"
+  8. Unmount the SD partitions, insert the SD card into the Beaglebone, and
+     boot the Beaglebone
 
 
 Freescale MPC8315E-RDB (mpc8315e-rdb)
@@ -330,165 +324,176 @@ Load the kernel and dtb (device tree blob), and boot the system as follows:
  => tftp 2000000 uImage-mpc8315e-rdb.dtb
  => bootm 1000000 - 2000000
 
+--- Booting from JFFS2 root ---
 
-Ubiquiti Networks RouterStation Pro (routerstationpro)
-======================================================
+ 1. First boot the board with NFS root.
 
-The RouterStation Pro is an Atheros AR7161 MIPS-based board. Geared towards
-networking applications, it has all of the usual features as well as three
-type IIIA mini-PCI slots and an on-board 3-port 10/100/1000 Ethernet switch,
-in addition to the 10/100/1000 Ethernet WAN port which supports
-Power-over-Ethernet.
+ 2. Erase the MTD partition which will be used as root:
+
+    $ flash_eraseall  /dev/mtd3
+
+ 3. Copy the JFFS2 image to the MTD partition:
+
+    $ flashcp core-image-minimal-mpc8315e-rdb.jffs2 /dev/mtd3
+
+ 4. Then reboot the board and set up the environment in U-Boot:
+
+    => setenv bootargs root=/dev/mtdblock3 rootfstype=jffs2 console=ttyS0,115200
+
+
+Ubiquiti Networks EdgeRouter Lite (edgerouter)
+==============================================
+
+The EdgeRouter Lite is part of the EdgeMax series. It is a MIPS64 router
+(based on the Cavium Octeon processor) with 512MB of RAM, which uses an
+internal USB pendrive for storage.
 
 Setup instructions
 ------------------
 
 You will need the following:
-* A serial cable - female to female (or female to male + gender changer)
-  NOTE: cable must be straight through, *not* a null modem cable.
-* USB flash drive or hard disk that is able to be powered from the
-  board's USB port.
-* tftp server installed on your workstation
-
-NOTE: in the following instructions it is assumed that /dev/sdb corresponds
-to the USB disk when it is plugged into your workstation. If this is not the
-case in your setup then please be careful to substitute the correct device
-name in all commands where appropriate.
+* NFS root setup on your workstation
+* TFTP server installed on your workstation
+* RJ45 -> serial ("rollover") cable connected from your PC to the CONSOLE
+  port on the board
+* Ethernet connected to the first ethernet port on the board
 
 --- Preparation ---
 
-1) Build an image (e.g. core-image-minimal) using "routerstationpro" as the
-MACHINE
+Build an image (e.g. core-image-minimal) using "edgerouter" as the MACHINE.
+In the following instruction it is based on core-image-minimal. Another target
+may be similiar with it.
 
-2) Partition the USB drive so that primary partition 1 is type Linux (83).
-Minimum size depends on your root image size - core-image-minimal probably
-only needs 8-16MB, other images will need more.
+--- Booting from NFS root ---
 
-  # fdisk /dev/sdb
-  Command (m for help): p
+Load the kernel, and boot the system as follows:
 
-  Disk /dev/sdb: 4011 MB, 4011491328 bytes
-  124 heads, 62 sectors/track, 1019 cylinders, total 7834944 sectors
-  Units = sectors of 1 * 512 = 512 bytes
-  Sector size (logical/physical): 512 bytes / 512 bytes
-  I/O size (minimum/optimal): 512 bytes / 512 bytes
-  Disk identifier: 0x0009e87d
+ 1. Get the kernel (vmlinux) file from the tmp/deploy/images/edgerouter
+    directory, and make them available on your TFTP server.
 
-     Device Boot      Start         End      Blocks   Id  System
-  /dev/sdb1              62     1952751      976345   83  Linux
+ 2. Connect the board's first serial port to your workstation and then start up
+    your favourite serial terminal so that you will be able to interact with
+    the serial console. If you don't have a favourite, picocom is suggested:
 
-3) Format partition 1 on the USB as ext3
+  $ picocom /dev/ttyS0 -b 115200
 
-  # mke2fs -j /dev/sdb1
+ 3. Power up or reset the board and press a key on the terminal when prompted
+    to get to the U-Boot command line
 
-4) Mount partition 1 and then extract the contents of
-tmp/deploy/images/core-image-XXXX.tar.bz2 into it (preserving permissions).
+ 4. Set up the environment in U-Boot:
 
-  # mount /dev/sdb1 /media/sdb1
-  # cd /media/sdb1
-  # tar -xvjpf tmp/deploy/images/core-image-XXXX.tar.bz2
+ => setenv ipaddr <board ip>
+ => setenv serverip <tftp server ip>
 
-5) Unmount the USB drive and then plug it into the board's USB port
+ 5. Download the kernel and boot:
 
-6) Connect the board's serial port to your workstation and then start up
-your favourite serial terminal so that you will be able to interact with
-the serial console. If you don't have a favourite, picocom is suggested:
+ => tftp tftp $loadaddr vmlinux
+ => bootoctlinux $loadaddr coremask=0x3 root=/dev/nfs rw nfsroot=<nfsroot ip>:<rootfs path> ip=<board ip>:<server ip>:<gateway ip>:<netmask>:edgerouter:eth0:off mtdparts=phys_mapped_flash:512k(boot0),512k(boot1),64k@3072k(eeprom)
 
-  $ picocom /dev/ttyUSB0 -b 115200
+--- Booting from USB root ---
 
-7) Connect the network into eth0 (the one that is NOT the 3 port switch). If
-you are using power-over-ethernet then the board will power up at this point.
+To boot from the USB disk, you either need to remove it from the edgerouter
+box and populate it from another computer, or use a previously booted NFS
+image and populate from the edgerouter itself.
 
-8) Start up the board, watch the serial console. Hit Ctrl+C to abort the
-autostart if the board is configured that way (it is by default). The
-bootloader's fconfig command can be used to disable autostart and configure
-the IP settings if you need to change them (default IP is 192.168.1.20).
+Type 1: Mounted USB disk
+------------------------
 
-9) Make the kernel (tmp/deploy/images/vmlinux-routerstationpro.bin) available
-on the tftp server.
+To boot from the USB disk there are two available partitions on the factory
+USB storage. The rest of this guide assumes that these partitions are left
+intact. If you change the partition scheme, you must update your boot method
+appropriately.
 
-10) If you are going to write the kernel to flash (optional - see "Booting a
-kernel directly" below for the alternative), remove the current kernel and
-rootfs flash partitions. You can list the partitions using the following
-bootloader command:
+The standard partitions are:
 
-  RedBoot> fis list
+  - 1: vfat partition containing factory kernels
+  - 2: ext3 partition for the root filesystem.
 
-You can delete the existing kernel and rootfs with these commands:
+You can place the kernel on either partition 1, or partition 2, but the roofs
+must go on partition 2 (due to its size).
 
-  RedBoot> fis delete kernel
-  RedBoot> fis delete rootfs
+Note: If you place the kernel on the ext3 partition, you must re-create the
+      ext3 filesystem, since the factory u-boot can only handle 128 byte inodes and
+      cannot read the partition otherwise.
 
---- Booting a kernel directly ---
+Steps:
 
-1) Load the kernel using the following bootloader command:
+ 1. Remove the USB disk from the edgerouter and insert it into a computer
+    that has access to your build artifacts.
 
-  RedBoot> load -m tftp -h <ip of tftp server> vmlinux-routerstationpro.bin
+ 2. Copy the kernel image to the USB storage (assuming discovered as 'sdb' on
+    the development machine):
 
-You should see a message on it being successfully loaded.
+    2a) if booting from vfat
+ 
+        # mount /dev/sdb1 /mnt
+        # cp tmp/deploy/images/edgerouter/vmlinux /mnt
+        # umount /mnt
 
-2) Execute the kernel:
+    2b) if booting from ext3
 
-  RedBoot> exec -c "console=ttyS0,115200 root=/dev/sda1 rw rootdelay=2 board=UBNT-RSPRO"
+        # mkfs.ext3 -I 128 /dev/sdb2
+        # mount /dev/sdb2 /mnt
+        # mkdir /mnt/boot
+        # cp tmp/deploy/images/edgerouter/vmlinux /mnt/boot
+        # umount /mnt
 
-Note that specifying the command line with -c is important as linux-yocto does
-not provide a default command line.
+ 3. Extract the rootfs to the USB storage ext3 partition
 
---- Writing a kernel to flash ---
+        # mount /dev/sdb2 /mnt
+        # tar -xvjpf core-image-minimal-XXX.tar.bz2 -C /mnt
+        # umount /mnt
 
-1) Go to your tftp server and gzip the kernel you want in flash. It should
-halve the size.
+ 4. Reboot the board and press a key on the terminal when prompted to get to the U-Boot
+    command line:
 
-2) Load the kernel using the following bootloader command:
+ 5. Load the kernel and boot:
 
-  RedBoot> load -r -b 0x80600000 -m tftp -h <ip of tftp server> vmlinux-routerstationpro.bin.gz
+    5a) vfat boot
 
-This should output something similar to the following:
+         => fatload usb 0:1 $loadaddr vmlinux
 
-  Raw file loaded 0x80600000-0x8087c537, assumed entry at 0x80600000
+    5b) ext3 boot
 
-Calculate the length by subtracting the first number from the second number
-and then rounding the result up to the nearest 0x1000.
+         => ext2load usb 0:2 $loadaddr boot/vmlinux
+ 
+    => bootoctlinux $loadaddr coremask=0x3 root=/dev/sda2 rw rootwait mtdparts=phys_mapped_flash:512k(boot0),512k(boot1),64k@3072k(eeprom)
+ 
 
-3) Using the length calculated above, create a flash partition for the kernel:
+Type 2: NFS
+-----------
 
-  RedBoot> fis create -b 0x80600000 -l 0x240000 kernel
+Note: If you place the kernel on the ext3 partition, you must re-create the
+      ext3 filesystem, since the factory u-boot can only handle 128 byte inodes and
+      cannot read the partition otherwise.
 
-(change 0x240000 to your rounded length -- change "kernel" to whatever
-you want to name your kernel)
+      These boot instructions assume that you have recreated the ext3 filesystem with
+      128 byte inodes, you have an updated uboot or you are running and image capable
+      of making the filesystem on the board itself.
 
---- Booting a kernel from flash ---
 
-To boot the flashed kernel perform the following steps.
+ 1. Boot from NFS root
 
-1) At the bootloader prompt, load the kernel:
+ 2. Mount the USB disk partition 2 and then extract the contents of
+    tmp/deploy/core-image-XXXX.tar.bz2 into it.
 
-  RedBoot> fis load -d -e kernel
+    Before starting, copy core-image-minimal-xxx.tar.bz2 and vmlinux into
+    rootfs path on your workstation.
 
-(Change the name "kernel" above if you chose something different earlier)
+    and then,
+  
+      # mount /dev/sda2 /media/sda2
+      # tar -xvjpf core-image-minimal-XXX.tar.bz2 -C /media/sda2
+      # cp vmlinux /media/sda2/boot/vmlinux
+      # umount /media/sda2
+      # reboot
 
-(-e means 'elf', -d 'decompress')
+ 3. Reboot the board and press a key on the terminal when prompted to get to the U-Boot
+    command line:
 
-2) Execute the kernel using the exec command as above.
+    # reboot
 
---- Automating the boot process ---
-
-After writing the kernel to flash and testing the load and exec commands
-manually, you can automate the boot process with a boot script.
-
-1) RedBoot> fconfig
-   (Answer the questions not specified here as they pertain to your environment)
-2) Run script at boot: true
-  Boot script: 
-  .. fis load -d -e kernel
-  .. exec
-  Enter script, terminate with empty line
-  >> fis load -d -e kernel
-  >> exec -c "console=ttyS0,115200 root=/dev/sda1 rw rootdelay=2 board=UBNT-RSPRO"
-  >> 
-3) Answer the remaining questions and write the changes to flash:
-  Update RedBoot non-volatile configuration - continue (y/n)? y
-  ... Erase from 0xbfff0000-0xc0000000: .
-  ... Program from 0x87ff0000-0x88000000 at 0xbfff0000: .
-4) Power cycle the board.
+ 4. Load the kernel and boot:
 
+      => ext2load usb 0:2 $loadaddr boot/vmlinux
+      => bootoctlinux $loadaddr coremask=0x3 root=/dev/sda2 rw rootwait mtdparts=phys_mapped_flash:512k(boot0),512k(boot1),64k@3072k(eeprom)

bitbake/bin/bitbake

@@ -41,7 +41,7 @@ from bb import ui
 from bb import server
 from bb import cookerdata
 
-__version__ = "1.21.0"
+__version__ = "1.24.0"
 logger = logging.getLogger("BitBake")
 
 # Python multiprocessing requires /dev/shm
@@ -139,8 +139,8 @@ class BitBakeConfigParameters(cookerdata.ConfigParameters):
         parser.add_option("-n", "--dry-run", help = "Don't execute, just go through the motions.",
                    action = "store_true", dest = "dry_run", default = False)
 
-        parser.add_option("-S", "--dump-signatures", help = "Don't execute, just dump out the signature construction information.",
-                   action = "store_true", dest = "dump_signatures", default = False)
+        parser.add_option("-S", "--dump-signatures", help = "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.",
+                   action = "append", dest = "dump_signatures", default = [], metavar="SIGNATURE_HANDLER")
 
         parser.add_option("-p", "--parse-only", help = "Quit after parsing the BB recipes.",
                    action = "store_true", dest = "parse_only", default = False)
@@ -148,7 +148,7 @@ class BitBakeConfigParameters(cookerdata.ConfigParameters):
         parser.add_option("-s", "--show-versions", help = "Show current and preferred versions of all recipes.",
                    action = "store_true", dest = "show_versions", default = False)
 
-        parser.add_option("-e", "--environment", help = "Show the global or per-package environment complete with information about where variables were set/changed.",
+        parser.add_option("-e", "--environment", help = "Show the global or per-recipe environment complete with information about where variables were set/changed.",
                    action = "store_true", dest = "show_environment", default = False)
 
         parser.add_option("-g", "--graphviz", help = "Save dependency tree information for the specified targets in the dot syntax.",
@@ -169,6 +169,9 @@ class BitBakeConfigParameters(cookerdata.ConfigParameters):
         parser.add_option("-t", "--servertype", help = "Choose which server to use, process or xmlrpc.",
                    action = "store", dest = "servertype")
 
+        parser.add_option("", "--token", help = "Specify the connection token to be used when connecting to a remote server.",
+                   action = "store", dest = "xmlrpctoken")
+
         parser.add_option("", "--revisions-changed", help = "Set the exit code depending on whether upstream floating revisions have changed or not.",
                    action = "store_true", dest = "revisions_changed", default = False)
 
@@ -200,10 +203,35 @@ class BitBakeConfigParameters(cookerdata.ConfigParameters):
             options.servertype = "xmlrpc"
             options.remote_server = os.environ["BBSERVER"]
 
+        if "BBTOKEN" in os.environ:
+            options.xmlrpctoken = os.environ["BBTOKEN"]
+
+        # if BBSERVER says to autodetect, let's do that
+        if options.remote_server:
+            [host, port] = options.remote_server.split(":", 2)
+            port = int(port)
+            # use automatic port if port set to -1, means read it from
+            # the bitbake.lock file; this is a bit tricky, but we always expect
+            # to be in the base of the build directory if we need to have a
+            # chance to start the server later, anyway
+            if port == -1:
+                lock_location = "./bitbake.lock"
+                # we try to read the address at all times; if the server is not started,
+                # we'll try to start it after the first connect fails, below
+                try:
+                    lf = open(lock_location, 'r')
+                    remotedef = lf.readline()
+                    [host, port] = remotedef.split(":")
+                    port = int(port)
+                    lf.close()
+                    options.remote_server = remotedef
+                except Exception as e:
+                    sys.exit("Failed to read bitbake.lock (%s), invalid port" % str(e))
+
         return options, targets[1:]
 
 
-def start_server(servermodule, configParams, configuration):
+def start_server(servermodule, configParams, configuration, features):
     server = servermodule.BitBakeServer()
     if configParams.bind:
         (host, port) = configParams.bind.split(':')
@@ -216,13 +244,13 @@ def start_server(servermodule, configParams, configuration):
     try:
         configuration.setServerRegIdleCallback(server.getServerIdleCB())
 
-        cooker = bb.cooker.BBCooker(configuration)
+        cooker = bb.cooker.BBCooker(configuration, features)
 
         server.addcooker(cooker)
         server.saveConnectionDetails()
     except Exception as e:
         exc_info = sys.exc_info()
-        while True:
+        while hasattr(server, "event_queue"):
             try:
                 import queue
             except ImportError:
@@ -235,6 +263,7 @@ def start_server(servermodule, configParams, configuration):
                 logger.handle(event)
         raise exc_info[1], None, exc_info[2]
     server.detach()
+    cooker.lock.close()
     return server
 
 
@@ -259,7 +288,7 @@ def main():
         servermodule = getattr(module, server_type)
     except AttributeError:
         sys.exit("FATAL: Invalid server type '%s' specified.\n"
-                 "Valid interfaces: xmlrpc, process [default]." % servertype)
+                 "Valid interfaces: xmlrpc, process [default]." % server_type)
 
     if configParams.server_only:
         if configParams.servertype != "xmlrpc":
@@ -279,6 +308,9 @@ def main():
     if configParams.observe_only and (not configParams.remote_server or configParams.bind):
         sys.exit("FATAL: '--observe-only' can only be used by UI clients connecting to a server.\n")
 
+    if configParams.kill_server and not configParams.remote_server:
+        sys.exit("FATAL: '--kill-server' can only be used to terminate a remote server")
+
     if "BBDEBUG" in os.environ:
         level = int(os.environ["BBDEBUG"])
         if level > configuration.debug:
@@ -296,39 +328,28 @@ def main():
     # Clear away any spurious environment variables while we stoke up the cooker
     cleanedvars = bb.utils.clean_environment()
 
-    if not configParams.remote_server:
-        # we start a server with a given configuration
-        server = start_server(servermodule, configParams, configuration)
-        bb.event.ui_queue = []
-    else:
-        # we start a stub server that is actually a XMLRPClient that connects to a real server
-        server = servermodule.BitBakeXMLRPCClient(configParams.observe_only)
-        server.saveConnectionDetails(configParams.remote_server)
-        server.saveConnectionConfigParams(configParams)
-
+    featureset = []
     if not configParams.server_only:
         # Collect the feature set for the UI
         featureset = getattr(ui_module, "featureSet", [])
 
-        if configParams.status_only:
-            try:
-                server_connection = server.establishConnection(featureset)
-            except:
-                sys.exit(1)
-            if not server_connection:
-                sys.exit(1)
-            server_connection.terminate()
-            sys.exit(0)
+    if not configParams.remote_server:
+        # we start a server with a given configuration
+        server = start_server(servermodule, configParams, configuration, featureset)
+        bb.event.ui_queue = []
+    else:
+        # we start a stub server that is actually a XMLRPClient that connects to a real server
+        server = servermodule.BitBakeXMLRPCClient(configParams.observe_only, configParams.xmlrpctoken)
+        server.saveConnectionDetails(configParams.remote_server)
 
-        # Setup a connection to the server (cooker)
-        server_connection = server.establishConnection(featureset)
-        if not server_connection:
-            if configParams.kill_server:
-                bb.fatal("Server already killed")
-            configParams.bind = configParams.remote_server
-            start_server(servermodule, configParams, configuration)
-            bb.event.ui_queue = []
+
+    if not configParams.server_only:
+        try:
             server_connection = server.establishConnection(featureset)
+        except Exception as e:
+            if configParams.kill_server:
+                sys.exit(0)
+            bb.fatal("Could not connect to server %s: %s" % (configParams.remote_server, str(e)))
 
         # Restore the environment in case the UI needs it
         for k in cleanedvars:
@@ -336,6 +357,16 @@ def main():
 
         logger.removeHandler(handler)
 
+
+        if configParams.status_only:
+            server_connection.terminate()
+            sys.exit(0)
+
+        if configParams.kill_server:
+            server_connection.connection.terminateServer()
+            bb.event.ui_queue = []
+            sys.exit(0)
+
         try:
             return ui_module.main(server_connection.connection, server_connection.events, configParams)
         finally:
@@ -343,6 +374,7 @@ def main():
             server_connection.terminate()
     else:
         print("server address: %s, server port: %s" % (server.serverImpl.host, server.serverImpl.port))
+        return 0
 
     return 1
 

bitbake/bin/bitbake-diffsigs

@@ -118,5 +118,5 @@ else:
             logger.error('Invalid signature data - ensure you are specifying sigdata/siginfo files')
             sys.exit(1)
 
-    if output:
-        print '\n'.join(output)
+        if output:
+            print '\n'.join(output)

bitbake/bin/bitbake-layers

@@ -556,7 +556,7 @@ Recipes are listed with the bbappends that apply to them as subitems.
                 continue
 
             basename = os.path.basename(filename)
-            appends = self.bbhandler.cooker.collection.appendlist.get(basename)
+            appends = self.bbhandler.cooker.collection.get_file_appends(basename)
             if appends:
                 appended.append((basename, list(appends)))
             else:
@@ -566,26 +566,29 @@ Recipes are listed with the bbappends that apply to them as subitems.
     def do_show_cross_depends(self, args):
         """figure out the dependency between recipes that crosses a layer boundary.
 
-usage: show-cross-depends [-f]
+usage: show-cross-depends [-f] [-i layer1[,layer2[,layer3...]]]
 
 Figure out the dependency between recipes that crosses a layer boundary.
 
 Options:
   -f   show full file path
+  -i   ignore dependencies on items in the specified layer(s)
 
 NOTE:
 The .bbappend file can impact the dependency.
 """
-        self.init_bbhandler()
+        import optparse
 
-        show_filenames = False
-        for arg in args.split():
-            if arg == '-f':
-                show_filenames = True
-            else:
-                sys.stderr.write("show-cross-depends: invalid option %s\n" % arg)
-                self.do_help('')
-                return
+        parser = optparse.OptionParser(usage="show-cross-depends [-f] [-i layer1[,layer2[,layer3...]]]")
+        parser.add_option("-f", "",
+                action="store_true", dest="show_filenames")
+        parser.add_option("-i", "",
+                action="store", dest="ignore_layers", default="")
+
+        options, args = parser.parse_args(sys.argv)
+        ignore_layers = options.ignore_layers.split(',')
+
+        self.init_bbhandler()
 
         pkg_fn = self.bbhandler.cooker_data.pkg_fn
         bbpath = str(self.bbhandler.config_data.getVar('BBPATH', True))
@@ -593,6 +596,8 @@ The .bbappend file can impact the dependency.
         self.include_re = re.compile(r"include\s+(.+)")
         self.inherit_re = re.compile(r"inherit\s+(.+)")
 
+        global_inherit = (self.bbhandler.config_data.getVar('INHERIT', True) or "").split()
+
         # The bb's DEPENDS and RDEPENDS
         for f in pkg_fn:
             f = bb.cache.Cache.virtualfn2realfn(f)[0]
@@ -607,7 +612,7 @@ The .bbappend file can impact the dependency.
                             self.bbhandler.config_data,
                             self.bbhandler.cooker_data,
                             self.bbhandler.cooker_data.pkg_pn)
-                    self.check_cross_depends("DEPENDS", layername, f, best[3], show_filenames)
+                    self.check_cross_depends("DEPENDS", layername, f, best[3], options.show_filenames, ignore_layers)
 
             # The RDPENDS
             all_rdeps = self.bbhandler.cooker_data.rundeps[f].values()
@@ -621,10 +626,33 @@ The .bbappend file can impact the dependency.
             for rdep in all_rdeps:
                 all_p = bb.providers.getRuntimeProviders(self.bbhandler.cooker_data, rdep)
                 if all_p:
+                    if f in all_p:
+                        # The recipe provides this one itself, ignore
+                        continue
                     best = bb.providers.filterProvidersRunTime(all_p, rdep,
                                     self.bbhandler.config_data,
                                     self.bbhandler.cooker_data)[0][0]
-                    self.check_cross_depends("RDEPENDS", layername, f, best, show_filenames)
+                    self.check_cross_depends("RDEPENDS", layername, f, best, options.show_filenames, ignore_layers)
+
+            # The RRECOMMENDS
+            all_rrecs = self.bbhandler.cooker_data.runrecs[f].values()
+            # Remove the duplicated or null one.
+            sorted_rrecs = {}
+            # The all_rrecs is the list in list, so we need two for loops
+            for k1 in all_rrecs:
+                for k2 in k1:
+                    sorted_rrecs[k2] = 1
+            all_rrecs = sorted_rrecs.keys()
+            for rrec in all_rrecs:
+                all_p = bb.providers.getRuntimeProviders(self.bbhandler.cooker_data, rrec)
+                if all_p:
+                    if f in all_p:
+                        # The recipe provides this one itself, ignore
+                        continue
+                    best = bb.providers.filterProvidersRunTime(all_p, rrec,
+                                    self.bbhandler.config_data,
+                                    self.bbhandler.cooker_data)[0][0]
+                    self.check_cross_depends("RRECOMMENDS", layername, f, best, options.show_filenames, ignore_layers)
 
             # The inherit class
             cls_re = re.compile('classes/')
@@ -634,9 +662,12 @@ The .bbappend file can impact the dependency.
                     # The inherits' format is [classes/cls, /path/to/classes/cls]
                     # ignore the classes/cls.
                     if not cls_re.match(cls):
+                        classname = os.path.splitext(os.path.basename(cls))[0]
+                        if classname in global_inherit:
+                            continue
                         inherit_layername = self.get_file_layer(cls)
-                        if inherit_layername != layername:
-                            if not show_filenames:
+                        if inherit_layername != layername and not inherit_layername in ignore_layers:
+                            if not options.show_filenames:
                                 f_short = self.remove_layer_prefix(f)
                                 cls = self.remove_layer_prefix(cls)
                             else:
@@ -656,7 +687,7 @@ The .bbappend file can impact the dependency.
                     if pv_re.search(needed_file) and f in self.bbhandler.cooker_data.pkg_pepvpr:
                         pv = self.bbhandler.cooker_data.pkg_pepvpr[f][1]
                         needed_file = re.sub(r"\${PV}", pv, needed_file)
-                    self.print_cross_files(bbpath, keyword, layername, f, needed_file, show_filenames)
+                    self.print_cross_files(bbpath, keyword, layername, f, needed_file, options.show_filenames, ignore_layers)
                 line = fnfile.readline()
             fnfile.close()
 
@@ -683,21 +714,22 @@ The .bbappend file can impact the dependency.
                                 bbclass=".bbclass"
                             # Find a 'require/include xxxx'
                             if m:
-                                self.print_cross_files(bbpath, keyword, layername, f, m.group(1) + bbclass, show_filenames)
+                                self.print_cross_files(bbpath, keyword, layername, f, m.group(1) + bbclass, options.show_filenames, ignore_layers)
                             line = ffile.readline()
                         ffile.close()
 
-    def print_cross_files(self, bbpath, keyword, layername, f, needed_filename, show_filenames):
+    def print_cross_files(self, bbpath, keyword, layername, f, needed_filename, show_filenames, ignore_layers):
         """Print the depends that crosses a layer boundary"""
         needed_file = bb.utils.which(bbpath, needed_filename)
         if needed_file:
             # Which layer is this file from
             needed_layername = self.get_file_layer(needed_file)
-            if needed_layername != layername:
+            if needed_layername != layername and not needed_layername in ignore_layers:
                 if not show_filenames:
                     f = self.remove_layer_prefix(f)
                     needed_file = self.remove_layer_prefix(needed_file)
                 logger.plain("%s %s %s" %(f, keyword, needed_file))
+
     def match_inherit(self, line):
         """Match the inherit xxx line"""
         return (self.inherit_re.match(line), "inherits")
@@ -711,11 +743,11 @@ The .bbappend file can impact the dependency.
             keyword = "includes"
         return (m, keyword)
 
-    def check_cross_depends(self, keyword, layername, f, needed_file, show_filenames):
+    def check_cross_depends(self, keyword, layername, f, needed_file, show_filenames, ignore_layers):
         """Print the DEPENDS/RDEPENDS file that crosses a layer boundary"""
         best_realfn = bb.cache.Cache.virtualfn2realfn(needed_file)[0]
         needed_layername = self.get_file_layer(best_realfn)
-        if needed_layername != layername:
+        if needed_layername != layername and not needed_layername in ignore_layers:
             if not show_filenames:
                 f = self.remove_layer_prefix(f)
                 best_realfn = self.remove_layer_prefix(best_realfn)

bitbake/bin/bitbake-selftest

@@ -25,13 +25,24 @@ try:
 except RuntimeError as exc:
     sys.exit(str(exc))
 
-tests = ["bb.tests.codeparser", 
-         "bb.tests.cow",
-         "bb.tests.data",
-         "bb.tests.fetch",
-         "bb.tests.utils"]
+def usage():
+    print('usage: %s [testname1 [testname2]...]' % os.path.basename(sys.argv[0]))
+
+if len(sys.argv) > 1:
+    if '--help' in sys.argv[1:]:
+        usage()
+        sys.exit(0)
+
+    tests = sys.argv[1:]
+else:
+    tests = ["bb.tests.codeparser",
+             "bb.tests.cow",
+             "bb.tests.data",
+             "bb.tests.fetch",
+             "bb.tests.utils"]
 
 for t in tests:
+    t = '.'.join(t.split('.')[:3])
     __import__(t)
 
 unittest.main(argv=["bitbake-selftest"] + tests)

bitbake/bin/bitbake-worker

@@ -12,10 +12,18 @@ import errno
 import signal
 
 # Users shouldn't be running this code directly
-if len(sys.argv) != 2 or sys.argv[1] != "decafbad":
+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] == "decafbadbad":
+    profiling = True
+    try:
+        import cProfile as profile
+    except:
+        import profile
+
 logger = logging.getLogger("BitBake")
 
 try:
@@ -81,6 +89,11 @@ def workerlog_write(msg):
         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, workerdata, fn, task, taskname, appends, taskdepdata, quieterrors=False):
     # We need to setup the environment BEFORE the fork, since
     # a fork() or exec*() activates PSEUDO...
@@ -129,17 +142,25 @@ def fork_off_task(cfg, data, workerdata, fn, task, taskname, appends, taskdepdat
         bb.msg.fatal("RunQueue", "fork failed: %d (%s)" % (e.errno, e.strerror))
 
     if pid == 0:
+        def child():
             global worker_pipe
             pipein.close()
 
+            signal.signal(signal.SIGTERM, sigterm_handler)
+            # Let SIGHUP exit as SIGTERM
+            signal.signal(signal.SIGHUP, sigterm_handler)
+
             # 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
 
-            # Make the child the process group leader
-            os.setpgid(0, 0)
+            # 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())
@@ -152,15 +173,11 @@ def fork_off_task(cfg, data, workerdata, fn, task, taskname, appends, taskdepdat
             data.setVar("BUILDNAME", workerdata["buildname"])
             data.setVar("DATE", workerdata["date"])
             data.setVar("TIME", workerdata["time"])
-            bb.parse.siggen.set_taskdata(workerdata["hashes"], workerdata["hash_deps"], workerdata["sigchecksums"])
+            bb.parse.siggen.set_taskdata(workerdata["sigdata"])
             ret = 0
             try:
                 the_data = bb.cache.Cache.loadDataFull(fn, appends, data)
                 the_data.setVar('BB_TASKHASH', workerdata["runq_hash"][task])
-                for h in workerdata["hashes"]:
-                    the_data.setVar("BBHASH_%s" % h, workerdata["hashes"][h])
-                for h in workerdata["hash_deps"]:
-                    the_data.setVar("BBHASHDEPS_%s" % h, workerdata["hash_deps"][h])
 
                 # 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 
@@ -181,11 +198,22 @@ def fork_off_task(cfg, data, workerdata, fn, task, taskname, appends, taskdepdat
                     logger.critical(str(exc))
                 os._exit(1)
             try:
-                if not cfg.dry_run:
-                    ret = bb.build.exec_task(fn, taskname, the_data, cfg.profile)
-                os._exit(ret)
+                if cfg.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 envbackup.iteritems():
             if value is None:
@@ -242,6 +270,19 @@ class BitbakeWorker(object):
         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)
+
+    def sigterm_exception(self, signum, stackframe):
+        if signum == signal.SIGTERM:
+            bb.warn("Worker recieved SIGTERM, shutting down...")
+        elif signum == signal.SIGHUP:
+            bb.warn("Worker recieved 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)
@@ -352,7 +393,16 @@ class BitbakeWorker(object):
 
 try:
     worker = BitbakeWorker(sys.stdin)
-    worker.serve()
+    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

bitbake/bin/toaster

@@ -16,9 +16,15 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
-# This script enables toaster event logging and
-# starts bitbake resident server
-# use as:  source toaster [start|stop]
+# This script can be run in two modes.
+
+# When used with "source", from a build directory,
+# it enables toaster event logging and starts the bitbake resident server.
+# use as:  source toaster [start|stop] [noweb] [noui]
+
+# When it is called as a stand-alone script, it starts just the
+# web server, and the building shall be done through the web interface.
+# As script, it will not return to the command prompt. Stop with Ctrl-C.
 
 # Helper function to kill a background toaster development server
 
@@ -30,6 +36,8 @@ function webserverKillAll()
 		while kill -0 $(< ${pidfile}) 2>/dev/null; do
 			kill -SIGTERM -$(< ${pidfile}) 2>/dev/null
 			sleep 1;
+			# Kill processes if they are still running - may happen in interactive shells
+			ps fux | grep "python.*manage.py" | awk '{print $2}' | xargs kill
 		done;
 		rm  ${pidfile}
 		fi
@@ -38,12 +46,35 @@ function webserverKillAll()
 
 function 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
         python $BBBASEDIR/lib/toaster/manage.py syncdb || retval=1
+        python $BBBASEDIR/lib/toaster/manage.py migrate orm || retval=2
         if [ $retval -eq 1 ]; then
                 echo "Failed db sync, stopping system start" 1>&2
-        else
+        elif [ $retval -eq 2 ]; then
+            echo -e "\nError on migration, trying to recover... \n"
+            python $BBBASEDIR/lib/toaster/manage.py migrate orm 0001_initial --fake
+            retval=0
+            python $BBBASEDIR/lib/toaster/manage.py migrate orm || retval=1
+        fi
+	if [ "x$TOASTER_MANAGED" == "x1" ]; then
+	        python $BBBASEDIR/lib/toaster/manage.py migrate bldcontrol || retval=1
+		python $BBBASEDIR/lib/toaster/manage.py checksettings  --traceback || retval=1
+	fi
+        if [ $retval -eq 0 ]; then
+	    echo "Starting webserver"
             python $BBBASEDIR/lib/toaster/manage.py runserver 0.0.0.0:8000 </dev/null >${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"
+            fi
         fi
         return $retval
 }
@@ -56,42 +87,100 @@ function addtoConfiguration()
         echo $1 >> ${BUILDDIR}/conf/$2
 }
 
+INSTOPSYSTEM=0
+
 # define the stop command
 function stop_system()
 {
+    # prevent reentry
+    if [ $INSTOPSYSTEM == 1 ]; then return; fi
+    INSTOPSYSTEM=1
     if [ -f ${BUILDDIR}/.toasterui.pid ]; then
-        kill $(< ${BUILDDIR}/.toasterui.pid )
+        kill $(< ${BUILDDIR}/.toasterui.pid ) 2>/dev/null
         rm ${BUILDDIR}/.toasterui.pid
     fi
-    BBSERVER=localhost:8200 bitbake -m
+    BBSERVER=0.0.0.0:8200 bitbake -m
     unset BBSERVER
     webserverKillAll
     # force stop any misbehaving bitbake server
     lsof bitbake.lock | awk '{print $2}' | grep "[0-9]\+" | xargs -n1 -r kill
+    trap - SIGHUP
+    #trap - SIGCHLD
+    INSTOPSYSTEM=0
 }
 
-# We make sure we're running in the current shell and in a good environment
+function check_pidbyfile() {
+    [ -e $1 ] && kill -0 $(< $1) 2>/dev/null
+}
+
+
+function notify_chldexit() {
+    if [ $NOTOASTERUI == 0 ]; then
+        check_pidbyfile ${BUILDDIR}/.toasterui.pid && return
+        stop_system
+    fi
+}
+
+
+BBBASEDIR=`dirname ${BASH_SOURCE}`/..
+RUNNING=0
 
 if [ -z "$ZSH_NAME" ] && [ `basename \"$0\"` = `basename \"$BASH_SOURCE\"` ]; then
-    echo "Error: This script needs to be sourced. Please run as 'source toaster [start|stop]'" 1>&2;
-    exit 1
+    # We are called as standalone. We refuse to run in a build environment - we need the interactive mode for that.
+    # Start just the web server, point the web browser to the interface, and start any Django services.
+
+    if [ -n "$BUILDDIR" ]; then
+        echo -e "Error: build/ directory detected. Toaster will not start in managed mode if a build environment is detected.\nUse a clean terminal to start Toaster." 1>&2;
+        exit 1;
+    fi
+
+    # Define a fake builddir where only the pid files are actually created. No real builds will take place here.
+    BUILDDIR=/tmp
+    RUNNING=1
+    function trap_ctrlc() {
+        echo "** Stopping system"
+        webserverKillAll
+        RUNNING=0
+    }
+    TOASTER_MANAGED=1
+    export TOASTER_MANAGED=1
+    if ! webserverStartAll; then
+        echo "Failed to start the web server, stopping" 1>&2;
+        exit 1;
+    fi
+    xdg-open http://0.0.0.0:8000/ >/dev/null 2>&1 &
+    trap trap_ctrlc SIGINT
+    echo "Running. Stop with Ctrl-C"
+    while [ $RUNNING -gt 0 ]; do
+	python $BBBASEDIR/lib/toaster/manage.py runbuilds
+	sleep 1
+    done
+    echo "**** Exit"
+    exit 0
 fi
 
+# We make sure we're running in the current shell and in a good environment
 if [ -z "$BUILDDIR" ] || [ -z `which bitbake` ]; then
     echo "Error: Build environment is not setup or bitbake is not in path." 1>&2;
     return 2
 fi
 
-BBBASEDIR=`dirname ${BASH_SOURCE}`/..
 
 
 # Verify prerequisites
 
-if ! echo "import django; print (1,4,5) == django.VERSION[0:3]" | python 2>/dev/null | grep True >/dev/null; then
-    echo -e "This program needs Django 1.4.5. Please install with\n\nsudo pip install django==1.4.5"
+if ! echo "import django; print (1,) == django.VERSION[0:1] and django.VERSION[1:2][0] in (5,6)" | python 2>/dev/null | grep True >/dev/null; then
+    echo -e "This program needs Django 1.5 or 1.6. Please install with\n\npip install django==1.6"
     return 2
 fi
 
+if ! echo "import south; print [0,8,4] ==  map(int,south.__version__.split(\".\"))" | python 2>/dev/null | grep True >/dev/null; then
+    echo -e "This program needs South 0.8.4. Please install with\n\npip install south==0.8.4"
+    return 2
+fi
+
+
+
 
 
 # Determine the action. If specified by arguments, fine, if not, toggle it
@@ -106,9 +195,17 @@ else
 fi
 
 NOTOASTERUI=0
-if [ "x$2" == "xnoui" ]; then
-    NOTOASTERUI=1
-fi
+WEBSERVER=1
+for param in $*; do
+    case $param in
+    noui )
+            NOTOASTERUI=1
+    ;;
+    noweb )
+            WEBSERVER=0
+    ;;
+    esac
+done
 
 echo "The system will $CMD."
 
@@ -120,45 +217,51 @@ if [ -e $BUILDDIR/bitbake.lock ]; then
 fi
 
 if [ ${CMD} == "start" ] && ( [ $lock -eq 0 ] || [ -e $BUILDDIR/.toastermain.pid ] ); then
-    echo "Error: bitbake lock state error. System is already on." 2>&1
-    return 3
-elif [ ${CMD} == "stop" ] && ( [ $lock -eq 1 ] || ! [ -e $BUILDDIR/.toastermain.pid ] ) ; then
-    echo "Error: bitbake lock state error. Trying to stop a stopped system ?
-If you think the system is hanged up, you can try to manually stop system with the commands
-
-# BBSERVER=localhost:8200 bitbake -m
-
-and
-
-# webserverKillAll
-" 2>&1
+    echo "Error: bitbake lock state error. File locks show that the system is on." 2>&1
+    echo "If you see problems, stop and then start the system again." 2>&1
     return 3
 fi
 
 
-
-
-
 # Execute the commands
 
 case $CMD in
     start )
+        start_success=1
         addtoConfiguration "INHERIT+=\"toaster buildhistory\"" toaster.conf
-        webserverStartAll || return 4
+        if [ $WEBSERVER -gt 0 ] && ! webserverStartAll; then
+            echo "Failed ${CMD}."
+            return 4
+        fi
         unset BBSERVER
-        bitbake --postread conf/toaster.conf --server-only -t xmlrpc -B localhost:8200
-        export BBSERVER=localhost:8200
-        if [ $NOTOASTERUI == 0 ]; then        # we start the TOASTERUI only if not inhibited
-            bitbake --observe-only -u toasterui >${BUILDDIR}/toaster_ui.log 2>&1 & echo $! >${BUILDDIR}/.toasterui.pid
+        bitbake --postread conf/toaster.conf --server-only -t xmlrpc -B 0.0.0.0:8200
+        if [ $? -ne 0 ]; then
+            start_success=0
+            echo "Bitbake server start failed"
+        else
+            export BBSERVER=0.0.0.0:8200
+            if [ $NOTOASTERUI == 0 ]; then        # we start the TOASTERUI only if not inhibited
+                bitbake --observe-only -u toasterui >${BUILDDIR}/toaster_ui.log 2>&1 & echo $! >${BUILDDIR}/.toasterui.pid
+            fi
+        fi
+        if [ $start_success -eq 1 ]; then
+            # set fail safe stop system on terminal exit
+            trap stop_system SIGHUP
+            echo "Successful ${CMD}."
+        else
+            # failed start, do stop
+            stop_system
+            echo "Failed ${CMD}."
         fi
         # stop system on terminal exit
+        set -o monitor
         trap stop_system SIGHUP
+        #trap notify_chldexit SIGCHLD
     ;;
     stop )
         stop_system
-        trap '' SIGHUP
+        echo "Successful ${CMD}."
     ;;
 esac
 
-echo "Successful ${CMD}."
 

bitbake/contrib/vim/plugin/newbb.vim

@@ -53,7 +53,6 @@ fun! NewBBTemplate()
     put ='LICENSE = \"\"' 
     put ='SECTION = \"\"'
     put ='DEPENDS = \"\"'
-    put ='PR = \"r0\"'
     put =''
     put ='SRC_URI = \"\"'
 

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 and PDF 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 and PDF versions of the User Manual.
+# The second example generates the HTML version only 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 pdf tarball
+TARFILES = bitbake-user-manual-style.css bitbake-user-manual.html bitbake-user-manual.pdf figures/bitbake-title.png
+MANUALS = $(DOC)/$(DOC).html $(DOC)/$(DOC).pdf
+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 +1,21 @@
+<?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/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 +1,910 @@
+<!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 &lt;target&gt;
+        </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 way to determine this value for your build host is to run:
+                <literallayout class='monospaced'>
+     $ grep processor /proc/cpuinfo
+                </literallayout>
+                and count the number of processors displayed. Note that the number of
+                processors will take into account hyper-threading, so that a quad-core
+                build host with hyper-threading will most likely show eight processors,
+                which is the value you would then assign to that variable.
+            </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_PRESERVE_ENV'><filename>BB_PRESERVE_ENV</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-BITBAKE_UI'><filename>BITBAKE_UI</filename></link>
+                    </para></listitem>
+            </itemizedlist>
+            You can find information on how to pass environment variables into the BitBake
+            execution environment in the
+            "<link linkend='passing-information-into-the-build-task-environment'>Passing Information Into the Build Task Environment</link>" section.
+        </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 = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE'),d)[0] or 'defaultpkgname'}"
+     PV = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE'),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 "stamp-extra-info" 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 "prefuncs" and "postfuncs" 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-&lt;taskname&gt;</filename>:
+                    The base hashes for each task in the recipe.
+                    </para></listitem>
+                <listitem><para><filename>BB_BASEHASH_&lt;filename:taskname&gt;</filename>:
+                    The base hashes for each dependent task.
+                    </para></listitem>
+                <listitem><para><filename>BBHASHDEPS_&lt;filename:taskname&gt;</filename>:
+                    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>STAMP_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_FUNCTION'><filename>BB_SETSCENE_VERIFY_FUNCTION</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 +1,738 @@
+<!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', True) 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', True)
+     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] = "value"
+     SRC_URI[sha256sum] = "value"
+            </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.
+                Failing that,
+                <link linkend='var-FILESDIR'><filename>FILESDIR</filename></link>
+                is used to find the appropriate relative file.
+                <note>
+                    <filename>FILESDIR</filename> is deprecated and can
+                    be replaced with <filename>FILESPATH</filename>.
+                    Because <filename>FILESDIR</filename> is likely to be
+                    removed, you should not use this variable in any new code.
+                </note>
+                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>
+        </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><filename>CVSDIR</filename>:</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 <filename>CVSDIR</filename>.
+                        </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 <filename>SVNDIR</filename>, 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>"protocol":</emphasis>
+                        The protocol to use, which defaults to "svn".
+                        Other options are "svn+ssh" and "rsh".
+                        For "rsh", the "rsh" parameter is also used.
+                        </para></listitem>
+                    <listitem><para><emphasis>"rev":</emphasis>
+                        The revision of the source code to checkout.
+                        </para></listitem>
+                    <listitem><para><emphasis>"date":</emphasis>
+                        The date of the source code to checkout.
+                        Specific revisions are generally much safer to checkout
+                        rather than by date as they do not involve timezones
+                        (e.g. they are much more deterministic).
+                        </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>"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 two examples using svn:
+                <literallayout class='monospaced'>
+     SRC_URI = "svn://svn.oe.handhelds.org/svn;module=vip;proto=http;rev=667"
+     SRC_URI = "svn://svn.oe.handhelds.org/svn/;module=opie;proto=svn+ssh;date=20060126"
+                </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 <filename>GITDIR</filename>, 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.
+                    </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").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
+                        The <filename>module</filename> and <filename>vob</filename>
+                        options are combined to create the following load rule in
+                        the view config spec:
+                        <literallayout class='monospaced'>
+     load &lt;vob&gt;&lt;module&gt;
+                        </literallayout>
+                        </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='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>
+                        Perforce (<filename>p4://</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 +1,506 @@
+<!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
+     -rwxrwxr-x. 1 wmat wmat  3195 Jan 31 11:57 setup.py
+     -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 these sources:
+            <itemizedlist>
+                <listitem><para>
+                    <ulink url="http://www.mail-archive.com/yocto@yoctoproject.org/msg09379.html">Mailing List post - The BitBake equivalent of "Hello, World!"</ulink>
+                    </para></listitem>
+                <listitem><para>
+                    <ulink url="https://web.archive.org/web/20150325165911/http://hambedded.org/blog/2012/11/24/from-bitbake-hello-world-to-an-image/">Hambedded Linux blog post - From Bitbake Hello World to an Image</ulink>
+                    </para></listitem>
+            </itemizedlist>
+        </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="&lt;projectdirectory&gt;"
+     $ 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='https://web.archive.org/web/20150325165911/http://hambedded.org/blog/2012/11/24/from-bitbake-hello-world-to-an-image/#an-overview-of-bitbakeconf'></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.
+                For more information on the <filename>base.bbclass</filename> file,
+                you can look at
+                <ulink url='https://web.archive.org/web/20150325165911/http://hambedded.org/blog/2012/11/24/from-bitbake-hello-world-to-an-image/#tasks'></ulink>.
+                </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 adding a layer at
+                    <ulink url='https://web.archive.org/web/20150325165911/http://hambedded.org/blog/2012/11/24/from-bitbake-hello-world-to-an-image/#adding-an-example-layer'></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}/"
+                </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 +1,685 @@
+<!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 or Yocto Project.
+                    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 ...]
+
+         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         Output more log message data to the terminal.
+       -D, --debug           Increase the debug level. You can specify this more
+                             than once.
+       -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 (e.g. knotty, hob, depexp).
+       -t SERVERTYPE, --servertype=SERVERTYPE
+                             Choose which server to use, process or xmlrpc.
+       --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.
+       --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.
+                </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='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 four files
+                    to the current working directory:
+                    <itemizedlist>
+                        <listitem><para><emphasis><filename>package-depends.dot</filename>:</emphasis>
+                            Shows BitBake's knowledge of dependencies between
+                            runtime targets.
+                            </para></listitem>
+                        <listitem><para><emphasis><filename>pn-depends.dot</filename>:</emphasis>
+                            Shows dependencies between build-time targets
+                            (i.e. recipes).
+                            </para></listitem>
+                        <listitem><para><emphasis><filename>task-depends.dot</filename>:</emphasis>
+                            Shows dependencies between tasks.
+                            </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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+   Browser wrangling and typographic design by
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+   Customised for Poky by
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+   Thanks to:
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+     William Skaggs
+     Jakub Steiner
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+}
+
+.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>2004-2015</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.1

@@ -89,7 +89,7 @@ quit after parsing the BB files (developers only)
 show current and preferred versions of all packages
 .TP
 .B \-e, \-\-environment
-show the global or per-package environment (this is what used to be bbread)
+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

bitbake/doc/manual/Makefile

@@ -1,56 +0,0 @@
-topdir = .
-manual = $(topdir)/usermanual.xml
-# types = pdf txt rtf ps xhtml html man tex texi dvi
-# types = pdf txt
-types = $(xmltotypes) $(htmltypes)
-xmltotypes = pdf txt
-htmltypes = html xhtml
-htmlxsl = $(if $(filter $@,$(foreach type,$(htmltypes),$(type)-nochunks)),http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl,http://docbook.sourceforge.net/release/xsl/current/$@/chunk.xsl)
-htmlcssfile = docbook.css
-htmlcss = $(topdir)/html.css
-# htmlcssfile =
-# htmlcss =
-cleanfiles = $(foreach i,$(types),$(topdir)/$(i))
-
-ifdef DEBUG
-define command
-	$(1)
-endef
-else
-define command
-	@echo $(2) $(3) $(4)
-	@$(1) >/dev/null
-endef
-endif
-
-all: $(types)
-
-lint: $(manual) FORCE
-	$(call command,xmllint --xinclude --postvalid --noout $(manual),XMLLINT $(manual))
-
-$(types) $(foreach type,$(htmltypes),$(type)-nochunks): lint FORCE
-
-$(foreach type,$(htmltypes),$(type)-nochunks): $(if $(htmlcss),$(htmlcss)) $(manual)
-	@mkdir -p $@
-ifdef htmlcss
-	$(call command,install -m 0644 $(htmlcss) $@/$(htmlcssfile),CP $(htmlcss) $@/$(htmlcssfile))
-endif
-	$(call command,xsltproc --stringparam base.dir $@/ $(if $(htmlcssfile),--stringparam html.stylesheet $(htmlcssfile)) $(htmlxsl) $(manual) > $@/index.$(patsubst %-nochunks,%,$@),XSLTPROC $@ $(manual))
-
-$(htmltypes): $(if $(htmlcss),$(htmlcss)) $(manual)
-	@mkdir -p $@
-ifdef htmlcss
-	$(call command,install -m 0644 $(htmlcss) $@/$(htmlcssfile),CP $(htmlcss) $@/$(htmlcssfile))
-endif
-	$(call command,xsltproc --stringparam base.dir $@/ $(if $(htmlcssfile),--stringparam html.stylesheet $(htmlcssfile)) $(htmlxsl) $(manual),XSLTPROC $@ $(manual))
-
-$(xmltotypes): $(manual)
-	$(call command,xmlto --with-dblatex --extensions -o $(topdir)/$@ $@ $(manual),XMLTO $@ $(manual))
-
-clean:
-	rm -rf $(cleanfiles)
-
-$(foreach i,$(types) $(foreach type,$(htmltypes),$(type)-nochunks),clean-$(i)):
-	rm -rf $(patsubst clean-%,%,$@)
-
-FORCE: 

bitbake/doc/manual/usermanual.xml

@@ -1,627 +0,0 @@
-<?xml version="1.0"?>
-<!--
-  ex:ts=4:sw=4:sts=4:et
-  -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
--->
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-                      "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-<book>
-    <bookinfo>
-        <title>BitBake User Manual</title>
-        <authorgroup>
-            <corpauthor>BitBake Team</corpauthor>
-        </authorgroup>
-        <copyright>
-            <year>2004, 2005, 2006, 2011</year>
-            <holder>Chris Larson</holder>
-            <holder>Phil Blundell</holder>
-            <holder>Richard Purdie</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, 559 Nathan Abbott Way, Stanford, California 94305, USA.</para>
-        </legalnotice>
-    </bookinfo>
-    <chapter>
-        <title>Introduction</title>
-        <section>
-            <title>Overview</title>
-            <para>BitBake is, at its simplest, a tool for executing
-tasks and managing metadata.  As such, its similarities to GNU make and other
-build tools are readily apparent.  It was inspired by Portage, the package management system used by the Gentoo Linux distribution.  BitBake is the basis of the <ulink url="http://www.openembedded.org/">OpenEmbedded</ulink> project, which is being used to build and maintain a number of embedded Linux distributions/projects such as Angstrom and the Yocto project.</para>
-        </section>
-        <section>
-            <title>Background and goals</title>
-            <para>Prior to BitBake, no other build tool adequately met
-the needs of an aspiring embedded Linux distribution.  All of the
-buildsystems used by traditional desktop Linux distributions lacked
-important functionality, and none of the ad-hoc
-<emphasis>buildroot</emphasis> systems, prevalent in the
-embedded space, were scalable or maintainable.</para>
-
-      <para>Some important original goals for BitBake were:
-            <itemizedlist>
-                <listitem><para>Handle crosscompilation.</para></listitem>
-                <listitem><para>Handle interpackage 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, et cetera.</para></listitem>
-                <listitem><para>Must be Linux distribution agnostic (both build and target).</para></listitem>
-                <listitem><para>Must be architecture agnostic</para></listitem>
-                <listitem><para>Must support multiple build and target operating systems (including Cygwin, the BSDs, etc).</para></listitem>
-                <listitem><para>Must be able to be self contained, rather than tightly integrated into the build machine's root filesystem.</para></listitem>
-                <listitem><para>There must be a way to handle conditional metadata (on target architecture, operating system, distribution, machine).</para></listitem>
-                <listitem><para>It must be easy for the person using the tools to supply their own local metadata and packages to operate against.</para></listitem>
-                <listitem><para>Must make it easy to collaborate
-between multiple projects using BitBake for their
-builds.</para></listitem>
-		<listitem><para>Should provide an inheritance mechanism to
-share common metadata between many packages.</para></listitem>
-            </itemizedlist>
-        </para>
-        <para>Over time it has become apparent that some further requirements were necessary:
-            <itemizedlist>
-                <listitem><para>Handle variants of a base recipe (native, sdk, multilib).</para></listitem>
-                <listitem><para>Able to split metadata into layers and allow layers to override each other.</para></listitem>
-                <listitem><para>Allow representation of a given set of input variables to a task as a checksum.</para></listitem>
-                <listitem><para>based on that checksum, allow acceleration of builds with prebuilt components.</para></listitem>
-            </itemizedlist>
-        </para>
-
-        <para>BitBake satisfies all the original requirements and many more with extensions being made to the basic functionality to reflect the additionl requirements.  Flexibility and power have always been the priorities.  It is highly extensible, supporting embedded Python code and execution of any arbitrary tasks.</para>
-        </section>
-    </chapter>
-    <chapter>
-        <title>Metadata</title>
-        <section>
-            <title>Description</title>
-            <itemizedlist>
-                <para>BitBake metadata can be classified into 3 major areas:</para>
-                <listitem>
-                    <para>Configuration Files</para>
-                </listitem>
-                <listitem>
-                    <para>.bb Files</para>
-                </listitem>
-                <listitem>
-                    <para>Classes</para>
-                </listitem>
-            </itemizedlist>
-            <para>What follows are a large number of examples of BitBake metadata.  Any syntax which isn't supported in any of the aforementioned areas will be documented as such.</para>
-            <section>
-                <title>Basic variable setting</title>
-                <para><screen><varname>VARIABLE</varname> = "value"</screen></para>
-                <para>In this example, <varname>VARIABLE</varname> is <literal>value</literal>.</para>
-            </section>
-            <section>
-                <title>Variable expansion</title>
-                <para>BitBake supports variables referencing one another's contents using a syntax which is similar to shell scripting</para>
-                <para><screen><varname>A</varname> = "aval"
-<varname>B</varname> = "pre${A}post"</screen></para>
-                <para>This results in <varname>A</varname> containing <literal>aval</literal> and <varname>B</varname> containing <literal>preavalpost</literal>.</para>
-            </section>
-            <section>
-                <title>Setting a default value (?=)</title>
-                <para><screen><varname>A</varname> ?= "aval"</screen></para>
-                <para>If <varname>A</varname> is set before the above is called, it will retain its previous value. If <varname>A</varname> is unset prior to the above call, <varname>A</varname> will be set to <literal>aval</literal>.  Note that this assignment is immediate, so if there are multiple ?= assignments to a single variable, the first of those will be used.</para>
-            </section>
-            <section>
-                <title>Setting a weak default value (??=)</title>
-                <para><screen><varname>A</varname> ??= "somevalue"
-<varname>A</varname> ??= "someothervalue"</screen></para>
-                <para>If <varname>A</varname> is set before the above, it will retain that value.  If <varname>A</varname> is unset prior to the above, <varname>A</varname> will be set to <literal>someothervalue</literal>.  This is a lazy/weak assignment in that the assignment does not occur until the end of the parsing process, so that the last, rather than the first, ??= assignment to a given variable will be used. Any other setting of A using = or ?= will however override the value set with ??=</para>
-            </section>
-            <section>
-                <title>Immediate variable expansion (:=)</title>
-                <para>:= results in a variable's contents being expanded immediately, rather than when the variable is actually used.</para>
-                <para><screen><varname>T</varname> = "123"
-<varname>A</varname> := "${B} ${A} test ${T}"
-<varname>T</varname> = "456"
-<varname>B</varname> = "${T} bval"
-
-<varname>C</varname> = "cval"
-<varname>C</varname> := "${C}append"</screen></para>
-                <para>In that example, <varname>A</varname> would contain <literal> test 123</literal>, <varname>B</varname> would contain <literal>456 bval</literal>, and <varname>C</varname> would be <literal>cvalappend</literal>.</para>
-            </section>
-            <section>
-                <title>Appending (+=) and prepending (=+)</title>
-                <para><screen><varname>B</varname> = "bval"
-<varname>B</varname> += "additionaldata"
-<varname>C</varname> = "cval"
-<varname>C</varname> =+ "test"</screen></para>
-                <para>In this example, <varname>B</varname> is now <literal>bval additionaldata</literal> and <varname>C</varname> is <literal>test cval</literal>.</para>
-            </section>
-            <section>
-                <title>Appending (.=) and prepending (=.) without spaces</title>
-                    <para><screen><varname>B</varname> = "bval"
-<varname>B</varname> .= "additionaldata"
-<varname>C</varname> = "cval"
-<varname>C</varname> =. "test"</screen></para>
-                <para>In this example, <varname>B</varname> is now <literal>bvaladditionaldata</literal> and <varname>C</varname> is <literal>testcval</literal>. In contrast to the above appending and prepending operators, no additional space
-will be introduced.</para>
-            </section>
-            <section>
-                <title>Appending and Prepending (override style syntax)</title>
-                    <para><screen><varname>B</varname> = "bval"
-<varname>B_append</varname> = " additional data"
-<varname>C</varname> = "cval"
-<varname>C_prepend</varname> = "additional data "</screen></para>
-                 <para>This example results in <varname>B</varname> becoming <literal>bval additional data</literal>
-and <varname>C</varname> becoming <literal>additional data cval</literal>. Note the spaces in the append.
-Unlike the += operator, additional space is not automatically added.  You must take steps to add space
-yourself.</para>
-            </section>
-            <section>
-                <title>Removing (override style syntax)</title>
-                <para><screen><varname>FOO</varname> = "123 456 789 123456 123 456 123 456"
-<varname>FOO_remove</varname> = "123"
-<varname>FOO_remove</varname> = "456"</screen></para>
-                <para>In this example, <varname>FOO</varname> is now <literal>789 123456</literal>.</para>
-            </section>
-            <section>
-                <title>Conditional metadata set</title>
-                <para>OVERRIDES is a <quote>:</quote> separated variable containing each item you want to satisfy conditions.  So, if you have a variable which is conditional on <quote>arm</quote>, and <quote>arm</quote> is in OVERRIDES, then the <quote>arm</quote> specific version of the variable is used rather than the non-conditional version.  Example:</para>
-                <para><screen><varname>OVERRIDES</varname> = "architecture:os:machine"
-<varname>TEST</varname> = "defaultvalue"
-<varname>TEST_os</varname> = "osspecificvalue"
-<varname>TEST_condnotinoverrides</varname> = "othercondvalue"</screen></para>
-                <para>In this example, <varname>TEST</varname> would be <literal>osspecificvalue</literal>, due to the condition <quote>os</quote> being in <varname>OVERRIDES</varname>.</para>
-            </section>
-            <section>
-                <title>Conditional appending</title>
-                <para>BitBake also supports appending and prepending to variables based on whether something is in OVERRIDES.  Example:</para>
-                <para><screen><varname>DEPENDS</varname> = "glibc ncurses"
-<varname>OVERRIDES</varname> = "machine:local"
-<varname>DEPENDS_append_machine</varname> = " libmad"</screen></para>
-                <para>In this example, <varname>DEPENDS</varname> is set to <literal>glibc ncurses libmad</literal>.</para>
-            </section>
-            <section>
-                <title>Inclusion</title>
-                <para>Next, there is the <literal>include</literal> directive, which causes BitBake to parse whatever file you specify, and insert it at that location, which is not unlike <command>make</command>.  However, if the path specified on the <literal>include</literal> line is a relative path, BitBake will locate the first one it can find within <envar>BBPATH</envar>.</para>
-            </section>
-            <section>
-                <title>Requiring inclusion</title>
-                <para>In contrast to the <literal>include</literal> directive, <literal>require</literal> will
-raise an ParseError if the file to be included cannot be found. Otherwise it will behave just like the <literal>
-include</literal> directive.</para>
-            </section>
-            <section>
-                <title>Python variable expansion</title>
-                <para><screen><varname>DATE</varname> = "${@time.strftime('%Y%m%d',time.gmtime())}"</screen></para>
-                <para>This would result in the <varname>DATE</varname> variable containing today's date.</para>
-            </section>
-            <section>
-                <title>Defining executable metadata</title>
-                <para><emphasis>NOTE:</emphasis> This is only supported in .bb and .bbclass files.</para>
-                <para><screen>do_mytask () {
-    echo "Hello, world!"
-}</screen></para>
-                <para>This is essentially identical to setting a variable, except that this variable happens to be executable shell code.</para>
-                <para><screen>python do_printdate () {
-    import time
-    print time.strftime('%Y%m%d', time.gmtime())
-}</screen></para>
-                <para>This is the similar to the previous, but flags it as Python so that BitBake knows it is Python code.</para>
-            </section>
-            <section>
-                <title>Defining Python functions into the global Python namespace</title>
-                <para><emphasis>NOTE:</emphasis> This is only supported in .bb and .bbclass files.</para>
-                <para><screen>def get_depends(bb, d):
-    if d.getVar('SOMECONDITION', True):
-        return "dependencywithcond"
-    else:
-        return "dependency"
-
-<varname>SOMECONDITION</varname> = "1"
-<varname>DEPENDS</varname> = "${@get_depends(bb, d)}"</screen></para>
-                <para>This would result in <varname>DEPENDS</varname> containing <literal>dependencywithcond</literal>.</para>
-            </section>
-            <section>
-                <title>Variable flags</title>
-                <para>Variables can have associated flags which provide a way of tagging extra information onto a variable. Several flags are used internally by BitBake but they can be used externally too if needed. The standard operations mentioned above also work on flags.</para>
-                <para><screen><varname>VARIABLE</varname>[<varname>SOMEFLAG</varname>] = "value"</screen></para>
-                <para>In this example, <varname>VARIABLE</varname> has a flag, <varname>SOMEFLAG</varname> which is set to <literal>value</literal>.</para>
-            </section>
-            <section>
-                <title>Inheritance</title>
-                <para><emphasis>NOTE:</emphasis> This is only supported in .bb and .bbclass files.</para>
-                <para>The <literal>inherit</literal> directive is a means of specifying what classes of functionality your .bb requires.  It is a rudimentary form of inheritance.  For example, you can easily abstract out the tasks involved in building a package that uses autoconf and automake, and put that into a bbclass for your packages to make use of.  A given bbclass is located by searching for classes/filename.bbclass in <envar>BBPATH</envar>, where filename is what you inherited.</para>
-            </section>
-            <section>
-                <title>Tasks</title>
-                <para><emphasis>NOTE:</emphasis> This is only supported in .bb and .bbclass files.</para>
-                <para>In BitBake, each step that needs to be run for a given .bb is known as a task.  There is a command <literal>addtask</literal> to add new tasks (must be a defined Python executable metadata and must start with <quote>do_</quote>) and describe intertask dependencies.</para>
-                <para><screen>python do_printdate () {
-    import time
-    print time.strftime('%Y%m%d', time.gmtime())
-}
-
-addtask printdate before do_build</screen></para>
-                <para>This defines the necessary Python function and adds it as a task which is now a dependency of do_build, the default task.  If anyone executes the do_build task, that will result in do_printdate being run first.</para>
-            </section>
-
-            <section>
-                <title>Task Flags</title>
-                <para>Tasks support a number of flags which control various functionality of the task. These are as follows:</para>
-                <para>'dirs' - directories which should be created before the task runs</para>
-                <para>'cleandirs' - directories which should created before the task runs but should be empty</para>
-                <para>'noexec' - marks the tasks as being empty and no execution required. These are used as dependency placeholders or used when added tasks need to be subsequently disabled.</para>
-                <para>'nostamp' - don't generate a stamp file for a task. This means the task is always rexecuted.</para>
-                <para>'fakeroot' - this task needs to be run in a fakeroot environment, obtained by adding the variables in FAKEROOTENV to the environment.</para>
-                <para>'umask' - the umask to run the task under.</para>
-                <para> For the 'deptask', 'rdeptask', 'depends', 'rdepends' and 'recrdeptask' flags please see the dependencies section.</para>
-            </section>
-
-            <section>
-                <title>Events</title>
-                <para><emphasis>NOTE:</emphasis> This is only supported in .bb and .bbclass files.</para>
-                <para>BitBake allows installation of event handlers.  Events are triggered at certain points during operation, such as the beginning of operation against a given .bb, the start of a given task, task failure, task success, et cetera.  The intent is to make it easy to do things like email notification on build failure.</para>
-                <para><screen>addhandler myclass_eventhandler
-python myclass_eventhandler() {
-    from bb.event import getName
-    from bb import data
-
-    print("The name of the Event is %s" % getName(e))
-    print("The file we run for is %s" % data.getVar('FILE', e.data, True))
-}
-</screen></para><para>
-This event handler gets called every time an event is triggered. A global variable <varname>e</varname> is defined. <varname>e</varname>.data contains an instance of bb.data. With the getName(<varname>e</varname>)
-method one can get the name of the triggered event.</para><para>The above event handler prints the name
-of the event and the content of the <varname>FILE</varname> variable.</para>
-            </section>
-            <section>
-                <title>Variants</title>
-                <para>Two BitBake features exist to facilitate the creation of multiple buildable incarnations from a single recipe file.</para>
-                <para>The first is <varname>BBCLASSEXTEND</varname>.  This variable is a space separated list of classes used to "extend" the recipe for each variant.  As an example, setting <screen>BBCLASSEXTEND = "native"</screen> results in a second incarnation of the current recipe being available.  This second incarnation will have the "native" class inherited.</para>
-                <para>The second feature is <varname>BBVERSIONS</varname>.  This variable allows a single recipe to build multiple versions of a project from a single recipe file, and allows you to specify conditional metadata (using the <varname>OVERRIDES</varname> mechanism) for a single version, or an optionally named range of versions:</para>
-                <para><screen>BBVERSIONS = "1.0 2.0 git"
-SRC_URI_git = "git://someurl/somepath.git"</screen></para>
-                <para><screen>BBVERSIONS = "1.0.[0-6]:1.0.0+ \
-              1.0.[7-9]:1.0.7+"
-SRC_URI_append_1.0.7+ = "file://some_patch_which_the_new_versions_need.patch;patch=1"</screen></para>
-                <para>Note that the name of the range will default to the original version of the recipe, so given OE, a recipe file of foo_1.0.0+.bb will default the name of its versions to 1.0.0+.  This is useful, as the range name is not only placed into overrides; it's also made available for the metadata to use in the form of the <varname>BPV</varname> variable, for use in file:// search paths (<varname>FILESPATH</varname>).</para>
-            </section>
-        </section>
-
-        <section>
-            <title>Variable interaction: Worked Examples</title>
-            <para>Despite the documentation of the different forms of variable definition above, it can be hard to work out what happens when variable operators are combined. This section documents some common questions people have regarding the way variables interact.</para>
-
-            <section>
-                <title>Override and append ordering</title>
-
-                <para>There is often confusion about which order overrides and the various append operators take effect.</para>
-
-                <para><screen><varname>OVERRIDES</varname> = "foo"
-<varname>A_foo_append</varname> = "X"</screen></para>
-                <para>In this case, X is unconditionally appended to the variable <varname>A_foo</varname>. Since foo is an override, A_foo would then replace <varname>A</varname>.</para>
-
-                 <para><screen><varname>OVERRIDES</varname> = "foo"
-<varname>A</varname> = "X"
-<varname>A_append_foo</varname> = "Y"</screen></para>
-                <para>In this case, only when foo is in OVERRIDES, Y is appended to the variable <varname>A</varname> so the value of <varname>A</varname> would become XY (NB: no spaces are appended).</para>
-
-                <para><screen><varname>OVERRIDES</varname> = "foo"
-<varname>A_foo_append</varname> = "X"
-<varname>A_foo_append</varname> += "Y"</screen></para>
-                <para>This behaves as per the first case above, but the value of <varname>A</varname> would be "X Y" instead of just "X".</para>
-
-                <para><screen><varname>A</varname> = "1"
-<varname>A_append</varname> = "2"
-<varname>A_append</varname> = "3"
-<varname>A</varname> += "4"
-<varname>A</varname> .= "5"</screen></para>
-
-                <para>Would ultimately result in <varname>A</varname> taking the value "1 4523" since the _append operator executes at the same time as the expansion of other overrides.</para>
-
-            </section>
-            <section>
-                <title>Key Expansion</title>
-
-                <para>Key expansion happens at the data store finalisation time just before overrides are expanded.</para>
-
-                <para><screen><varname>A${B}</varname> = "X"
-<varname>B</varname> = "2"
-<varname>A2</varname> = "Y"</screen></para>
-                <para>So in this case <varname>A2</varname> would take the value of "X".</para>
-            </section>
-
-        </section>
-        <section>
-            <title>Dependency handling</title>
-            <para>BitBake handles dependencies at the task level since to allow for efficient operation with multiple processed executing in parallel. A robust method of specifying task dependencies is therefore needed. </para>
-            <section>
-                <title>Dependencies internal to the .bb file</title>
-                <para>Where the dependencies are internal to a given .bb file, the dependencies are handled by the previously detailed addtask directive.</para>
-            </section>
-
-            <section>
-                <title>Build Dependencies</title>
-                <para>DEPENDS lists build time dependencies. The 'deptask' flag for tasks is used to signify the task of each item listed in DEPENDS which must have completed before that task can be executed.</para>
-                <para><screen>do_configure[deptask] = "do_populate_staging"</screen></para>
-                <para>means the do_populate_staging task of each item in DEPENDS must have completed before do_configure can execute.</para>
-            </section>
-            <section>
-                <title>Runtime Dependencies</title>
-                <para>The PACKAGES variable lists runtime packages and each of these can have RDEPENDS and RRECOMMENDS runtime dependencies. The 'rdeptask' flag for tasks is used to signify the task of each item runtime dependency which must have completed before that task can be executed.</para>
-                <para><screen>do_package_write[rdeptask] = "do_package"</screen></para>
-                <para>means the do_package task of each item in RDEPENDS must have completed before do_package_write can execute.</para>
-            </section>
-            <section>
-                <title>Recursive Dependencies</title>
-                <para>These are specified with the 'recrdeptask' flag which is used signify the task(s) of dependencies which must have completed before that task can be executed. It works by looking though the build and runtime dependencies of the current recipe as well as any inter-task dependencies the task has, then adding a dependency on the listed task. It will then recurse through the dependencies of those tasks and so on.</para>
-                <para>It may be desireable to recurse not just through the dependencies of those tasks but through the build and runtime dependencies of dependent tasks too. If that is the case, the taskname itself should be referenced in the task list, e.g. do_a[recrdeptask] = "do_a do_b".</para>
-            </section>
-            <section>
-                <title>Inter task</title>
-                <para>The 'depends' flag for tasks is a more generic form of which allows an interdependency on specific tasks rather than specifying the data in DEPENDS.</para>
-                <para><screen>do_patch[depends] = "quilt-native:do_populate_staging"</screen></para>
-                <para>means the do_populate_staging task of the target quilt-native must have completed before the do_patch can execute.</para>
-                <para>The 'rdepends' flag works in a similar way but takes targets in the runtime namespace instead of the build time dependency namespace.</para>
-            </section>
-        </section>
-
-        <section>
-            <title>Parsing</title>
-            <section>
-                <title>Configuration files</title>
-                <para>The first kind of metadata in BitBake is configuration metadata.  This metadata is global, and therefore affects <emphasis>all</emphasis> packages and tasks which are executed.</para>
-                <para>BitBake will first search the current working directory for an optional "conf/bblayers.conf" configuration file. This file is expected to contain a BBLAYERS variable which is a space delimited list of 'layer' directories. For each directory in this list, a "conf/layer.conf" file will be searched for and parsed with the LAYERDIR variable being set to the directory where the layer was found. The idea is these files will setup BBPATH and other variables correctly for a given build directory automatically for the user.</para>
-                <para>BitBake will then expect to find 'conf/bitbake.conf' somewhere in the user specified <envar>BBPATH</envar>.  That configuration file generally has include directives to pull in any other metadata (generally files specific to architecture, machine, <emphasis>local</emphasis> and so on).</para>
-                <para>Only variable definitions and include directives are allowed in .conf files.</para>
-            </section>
-            <section>
-                <title>Classes</title>
-                <para>BitBake classes are our rudimentary inheritance mechanism.  As briefly mentioned in the metadata introduction, they're parsed when an <literal>inherit</literal> directive is encountered, and they are located in classes/ relative to the directories in <envar>BBPATH</envar>.</para>
-            </section>
-            <section>
-                <title>.bb files</title>
-                <para>A BitBake (.bb) file is a logical unit of tasks to be executed.  Normally this is a package to be built.  Inter-.bb dependencies are obeyed.  The files themselves are located via the <varname>BBFILES</varname> variable, which is set to a space separated list of .bb files, and does handle wildcards.</para>
-            </section>
-        </section>
-    </chapter>
-
-    <chapter>
-        <title>File download support</title>
-        <section>
-            <title>Overview</title>
-            <para>BitBake provides support to download files this procedure is called fetching and it handled by the fetch and fetch2 modules. At this point the original fetch code is considered to be replaced by fetch2 and this manual only related to the fetch2 codebase.</para>
-
-            <para>The SRC_URI is normally used to tell BitBake which files to fetch. The next sections will describe the available fetchers and their options. Each fetcher honors a set of variables and per URI parameters separated by a <quote>;</quote> consisting of a key and a value. The semantics of the variables and parameters are defined by the fetcher. BitBake tries to have consistent semantics between the different fetchers.
-            </para>
-
-            <para>The overall fetch process is that first, fetches are attempted from PREMIRRORS. If those don't work, the original SRC_URI is attempted and if that fails, BitBake will fall back to MIRRORS. Cross urls are supported, so its possible to mirror a git repository on an http server as a tarball for example. Some example commonly used mirror definitions are:</para>
-
-            <para><screen><varname>PREMIRRORS</varname> ?= "\
-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 \
-svk://.*/.*   http://somemirror.org/sources/ \n \
-svn://.*/.*   http://somemirror.org/sources/ \n"
-
-<varname>MIRRORS</varname> =+ "\
-ftp://.*/.*      http://somemirror.org/sources/ \n \
-http://.*/.*     http://somemirror.org/sources/ \n \
-https://.*/.*    http://somemirror.org/sources/ \n"</screen></para>
-
-            <para>Non-local downloaded output is placed into the directory specified by the <varname>DL_DIR</varname>. For non local archive downloads the code can verify sha256 and md5 checksums for the download to ensure the file has been downloaded correctly. These may be specified either in the form <varname>SRC_URI[md5sum]</varname> for the md5 checksum and <varname>SRC_URI[sha256sum]</varname> for the sha256 checksum or as parameters on the SRC_URI such as SRC_URI="http://example.com/foobar.tar.bz2;md5sum=4a8e0f237e961fd7785d19d07fdb994d". If <varname>BB_STRICT_CHECKSUM</varname> is set, any download without a checksum will trigger an error message. In cases where multiple files are listed in SRC_URI, the name parameter is used assign names to the urls and these are then specified in the checksums in the form SRC_URI[name.sha256sum].</para>
-
-        </section>
-
-        <section>
-            <title>Local file fetcher</title>
-            <para>The URN for the local file fetcher is <emphasis>file</emphasis>. The filename can be either absolute or relative. If the filename is relative, <varname>FILESPATH</varname> and failing that <varname>FILESDIR</varname> will be used to find the appropriate relative file. The metadata usually extend these variables to include variations of the values in <varname>OVERRIDES</varname>. Single files and complete directories can be specified.
-<screen><varname>SRC_URI</varname>= "file://relativefile.patch"
-<varname>SRC_URI</varname>= "file://relativefile.patch;this=ignored"
-<varname>SRC_URI</varname>= "file:///Users/ich/very_important_software"
-</screen>
-            </para>
-        </section>
-
-        <section>
-            <title>CVS fetcher</title>
-            <para>The URN for the CVS fetcher is <emphasis>cvs</emphasis>. This fetcher honors the variables <varname>CVSDIR</varname>, <varname>SRCDATE</varname>, <varname>FETCHCOMMAND_cvs</varname>, <varname>UPDATECOMMAND_cvs</varname>. <varname>DL_DIR</varname> specifies where a temporary checkout is saved. <varname>SRCDATE</varname> specifies which date to use when doing the fetching (the special value of "now" will cause the checkout to be updated on every build). <varname>FETCHCOMMAND</varname> and <varname>UPDATECOMMAND</varname> specify which executables to use for the CVS checkout or update.
-            </para>
-            <para>The supported parameters are <varname>module</varname>, <varname>tag</varname>, <varname>date</varname>, <varname>method</varname>, <varname>localdir</varname>, <varname>rsh</varname> and <varname>scmdata</varname>. The <varname>module</varname> specifies which module to check out, the <varname>tag</varname> describes which CVS TAG should be used for the checkout. By default the TAG is empty. A <varname>date</varname> can be specified to override the SRCDATE of the configuration to checkout a specific date.  The special value of "now" will cause the checkout to be updated on every build.<varname>method</varname> is by default <emphasis>pserver</emphasis>. If <emphasis>ext</emphasis> is used the <varname>rsh</varname> parameter will be evaluated and <varname>CVS_RSH</varname> will be set. Finally, <varname>localdir</varname> is used to checkout into a special directory relative to <varname>CVSDIR</varname>.
-
-<screen><varname>SRC_URI</varname> = "cvs://CVSROOT;module=mymodule;tag=some-version;method=ext"
-<varname>SRC_URI</varname> = "cvs://CVSROOT;module=mymodule;date=20060126;localdir=usethat"
-</screen>
-            </para>
-        </section>
-
-        <section>
-            <title>HTTP/FTP fetcher</title>
-            <para>The URNs for the HTTP/FTP fetcher are <emphasis>http</emphasis>, <emphasis>https</emphasis> and <emphasis>ftp</emphasis>. This fetcher honors the variables <varname>FETCHCOMMAND_wget</varname>. <varname>FETCHCOMMAND</varname> contains the command used for fetching. <quote>${URI}</quote> and <quote>${FILES}</quote> will be replaced by the URI and basename of the file to be fetched.
-            </para>
-            <para><screen><varname>SRC_URI</varname> = "http://oe.handhelds.org/not_there.aac"
-<varname>SRC_URI</varname> = "ftp://oe.handhelds.org/not_there_as_well.aac"
-<varname>SRC_URI</varname> = "ftp://you@oe.handheld.sorg/home/you/secret.plan"
-</screen></para>
-        </section>
-
-        <section>
-            <title>SVN fetcher</title>
-            <para>The URN for the SVN fetcher is <emphasis>svn</emphasis>.
-            </para>
-            <para>This fetcher honors the variables <varname>FETCHCOMMAND_svn</varname>, <varname>SVNDIR</varname>, <varname>SRCREV</varname>. <varname>FETCHCOMMAND</varname> contains the subversion command. <varname>SRCREV</varname> specifies which revision to use when doing the fetching.
-            </para>
-            <para>The supported parameters are <varname>proto</varname>, <varname>rev</varname> and <varname>scmdata</varname>. <varname>proto</varname> is the Subversion protocol, <varname>rev</varname> is the Subversion revision. If <varname>scmdata</varname> is set to <quote>keep</quote>, the <quote>.svn</quote> directories will be available during compile-time.
-            </para>
-            <para><screen><varname>SRC_URI</varname> = "svn://svn.oe.handhelds.org/svn;module=vip;proto=http;rev=667"
-<varname>SRC_URI</varname> = "svn://svn.oe.handhelds.org/svn/;module=opie;proto=svn+ssh;date=20060126"
-</screen></para>
-        </section>
-
-        <section>
-            <title>GIT fetcher</title>
-            <para>The URN for the GIT Fetcher is <emphasis>git</emphasis>.
-            </para>
-            <para>The variable <varname>GITDIR</varname> will be used as the base directory where the git tree is cloned to.
-            </para>
-            <para>The parameters are <emphasis>tag</emphasis>, <emphasis>protocol</emphasis> and <emphasis>scmdata</emphasis>. <emphasis>tag</emphasis> is a Git tag, the default is <quote>master</quote>. <emphasis>protocol</emphasis> is the Git protocol to use and defaults to <quote>git</quote> if a hostname is set, otherwise its <quote>file</quote>. If <emphasis>scmdata</emphasis> is set to <quote>keep</quote>, the <quote>.git</quote> directory will be available during compile-time.
-            </para>
-            <para><screen><varname>SRC_URI</varname> = "git://git.oe.handhelds.org/git/vip.git;tag=version-1"
-<varname>SRC_URI</varname> = "git://git.oe.handhelds.org/git/vip.git;protocol=http"
-            </screen></para>
-        </section>
-
-    </chapter>
-
-
-    <chapter>
-        <title>The BitBake command</title>
-            <section>
-                <title>Introduction</title>
-                <para>bitbake is the primary command in the system.  It facilitates executing tasks in a single .bb file, or executing a given task on a set of multiple .bb files, accounting for interdependencies amongst them.</para>
-            </section>
-            <section>
-                <title>Usage and syntax</title>
-                <para>
-                    <screen><prompt>$ </prompt>bitbake --help
-usage: bitbake [options] [package ...]
-
-Executes the specified task (default is 'build') for a given set of BitBake files.
-It expects that BBFILES is defined, which is a space separated list of files to
-be executed.  BBFILES does support wildcards.
-Default BBFILES are the .bb files in the current directory.
-
-options:
-  --version             show program's version number and exit
-  -h, --help            show this help message and exit
-  -b BUILDFILE, --buildfile=BUILDFILE
-                        execute the task against this .bb file, rather than a
-                        package from BBFILES.
-  -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.
-  -f, --force           force run of specified cmd, regardless of stamp status
-  -i, --interactive     drop into the interactive mode also called the BitBake
-                        shell.
-  -c CMD, --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
-  -r FILE, --read=FILE  read the specified file before bitbake.conf
-  -v, --verbose         output more chit-chat to the terminal
-  -D, --debug           Increase the debug level. You can specify this more
-                        than once.
-  -n, --dry-run         don't execute, just go through the motions
-  -p, --parse-only      quit after parsing the BB files (developers only)
-  -s, --show-versions   show current and preferred versions of all packages
-  -e, --environment     show the global or per-package environment (this is
-                        what used to be bbread)
-  -g, --graphviz        emit the dependency trees of the specified packages in
-                        the dot syntax
-  -I IGNORED_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
-  -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS
-                        Show debug logging for the specified logging domains
-  -P, --profile         profile the command and print a report
-
-
-</screen>
-                </para>
-                <para>
-                <example>
-                    <title>Executing a task against a single .bb</title>
-                    <para>Executing tasks for a single file is relatively simple.  You specify the file in question, and BitBake parses it and executes the specified task (or <quote>build</quote> by default).  It obeys intertask dependencies when doing so.</para>
-                    <para><quote>clean</quote> task:</para>
-                    <para><screen><prompt>$ </prompt>bitbake -b blah_1.0.bb -c clean</screen></para>
-                    <para><quote>build</quote> task:</para>
-                    <para><screen><prompt>$ </prompt>bitbake -b blah_1.0.bb</screen></para>
-                </example>
-                </para>
-                <para>
-                <example>
-                    <title>Executing tasks against a set of .bb files</title>
-                    <para>There are a number of additional complexities introduced when one wants to manage multiple .bb files.  Clearly there needs to be a way to tell BitBake what files are available, and of those, which we want to execute at this time.  There also needs to be a way for each .bb to express its dependencies, both for build time and runtime.  There must be a way for the user to express their preferences when multiple .bb's provide the same functionality, or when there are multiple versions of a .bb.</para>
-                    <para>The next section, Metadata, outlines how to specify such things.</para>
-                    <para>Note that the bitbake command, when not using --buildfile, accepts a <varname>PROVIDER</varname>, not a filename or anything else.  By default, a .bb generally PROVIDES its packagename, packagename-version, and packagename-version-revision.</para>
-                    <screen><prompt>$ </prompt>bitbake blah</screen>
-                    <screen><prompt>$ </prompt>bitbake blah-1.0</screen>
-                    <screen><prompt>$ </prompt>bitbake blah-1.0-r0</screen>
-                    <screen><prompt>$ </prompt>bitbake -c clean blah</screen>
-                    <screen><prompt>$ </prompt>bitbake virtual/whatever</screen>
-                    <screen><prompt>$ </prompt>bitbake -c clean virtual/whatever</screen>
-                </example>
-                <example>
-                    <title>Generating dependency graphs</title>
-                    <para>BitBake is able to generate dependency graphs using the dot syntax. These graphs can be converted
-to images using the <application>dot</application> application from <ulink url="http://www.graphviz.org">Graphviz</ulink>.
-Two files will be written into the current working directory, <emphasis>depends.dot</emphasis> containing dependency information at the package level and <emphasis>task-depends.dot</emphasis> containing a breakdown of the dependencies at the task level. To stop depending on common depends, one can use the <prompt>-I depend</prompt> to omit these from the graph. This can lead to more readable graphs.  This way, <varname>DEPENDS</varname> from inherited classes such as base.bbclass can be removed from the graph.</para>
-                    <screen><prompt>$ </prompt>bitbake -g blah</screen>
-                    <screen><prompt>$ </prompt>bitbake -g -I virtual/whatever -I bloom blah</screen>
-                </example>
-                </para>
-            </section>
-            <section>
-                <title>Special variables</title>
-                <para>Certain variables affect BitBake operation:</para>
-                <section>
-                    <title><varname>BB_NUMBER_THREADS</varname></title>
-                    <para> The number of threads BitBake should run at once (default: 1).</para>
-                </section>
-            </section>
-            <section>
-                <title>Metadata</title>
-                <para>As you may have seen in the usage information, or in the information about .bb files, the <varname>BBFILES</varname> variable is how the BitBake tool locates its files.  This variable is a space separated list of files that are available, and supports wildcards.
-                <example>
-                    <title>Setting BBFILES</title>
-                    <programlisting><varname>BBFILES</varname> = "/path/to/bbfiles/*.bb"</programlisting>
-                </example></para>
-                <para>With regard to dependencies, it expects the .bb to define a <varname>DEPENDS</varname> variable, which contains a space separated list of <quote>package names</quote>, which themselves are the <varname>PN</varname> variable.  The <varname>PN</varname> variable is, in general, set to a component of the .bb filename by default.</para>
-                <example>
-                    <title>Depending on another .bb</title>
-                    <para>a.bb:
-    <screen>PN = "package-a"
-DEPENDS += "package-b"</screen>
-                    </para>
-                    <para>b.bb:
-    <screen>PN = "package-b"</screen>
-                    </para>
-                </example>
-                <example>
-                    <title>Using PROVIDES</title>
-                    <para>This example shows the usage of the <varname>PROVIDES</varname> variable, which allows a given .bb to specify what functionality it provides.</para>
-                    <para>package1.bb:
-    <screen>PROVIDES += "virtual/package"</screen>
-                    </para>
-                    <para>package2.bb:
-    <screen>DEPENDS += "virtual/package"</screen>
-                    </para>
-                    <para>package3.bb:
-    <screen>PROVIDES += "virtual/package"</screen>
-                    </para>
-                    <para>As you can see, we have two different .bb's that provide the same functionality (virtual/package).  Clearly, there needs to be a way for the person running BitBake to control which of those providers gets used.  There is, indeed, such a way.</para>
-                    <para>The following would go into a .conf file, to select package1:
-    <screen>PREFERRED_PROVIDER_virtual/package = "package1"</screen>
-                    </para>
-                </example>
-                <example>
-                    <title>Specifying version preference</title>
-                    <para>When there are multiple <quote>versions</quote> of a given package, BitBake defaults to selecting the most recent version, unless otherwise specified.  If the .bb in question has a <varname>DEFAULT_PREFERENCE</varname> set lower than the other .bb's (default is 0), then it will not be selected.  This allows the person or persons maintaining the repository of .bb files to specify their preference for the default selected version.  In addition, the user can specify their preferred version.</para>
-                    <para>If the first .bb is named <filename>a_1.1.bb</filename>, then the <varname>PN</varname> variable will be set to <quote>a</quote>, and the <varname>PV</varname> variable will be set to 1.1.</para>
-                    <para>If we then have an <filename>a_1.2.bb</filename>, BitBake will choose 1.2 by default.  However, if we define the following variable in a .conf that BitBake parses, we can change that.
-    <screen>PREFERRED_VERSION_a = "1.1"</screen>
-                    </para>
-                </example>
-                <example>
-                    <title>Using <quote>bbfile collections</quote></title>
-                    <para>bbfile collections exist to allow the user to have multiple repositories of bbfiles 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.  Usage:</para>
-                    <screen>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"</screen>
-                </example>
-            </section>
-    </chapter>
-</book>

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/__init__.py

@@ -21,7 +21,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
-__version__ = "1.21.0"
+__version__ = "1.24.0"
 
 import sys
 if sys.version_info < (2, 7, 3):
@@ -99,12 +99,11 @@ def error(*args):
 
 def fatal(*args):
     logger.critical(''.join(args))
-    sys.exit(1)
-
+    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 emmitted
+    as deprecated. It will result in a warning being emitted
     when the function is used."""
     import warnings
 

bitbake/lib/bb/build.py

@@ -23,13 +23,14 @@
 # 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
+# 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 bb
 import bb.msg
 import bb.process
@@ -41,9 +42,8 @@ logger = logging.getLogger('BitBake.Build')
 
 NULL = open(os.devnull, 'r+')
 
-
-# When we execute a python function we'd like certain things
-# in all namespaces, hence we add them to __builtins__
+# 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.
 __builtins__['bb'] = bb
@@ -75,6 +75,7 @@ class TaskBase(event.Event):
         self.taskfile = d.getVar("FILE", True)
         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", True), t, self.getDisplayName())
 
@@ -141,7 +142,7 @@ class LogTee(object):
         self.outfile.flush()
 
 def exec_func(func, d, dirs = None):
-    """Execute an BB 'function'"""
+    """Execute a BB 'function'"""
 
     body = d.getVar(func)
     if not body:
@@ -154,6 +155,7 @@ def exec_func(func, d, dirs = None):
     if cleandirs:
         for cdir in d.expand(cleandirs).split():
             bb.utils.remove(cdir, True)
+            bb.utils.mkdirhier(cdir)
 
     if dirs is None:
         dirs = flags.get('dirs')
@@ -172,7 +174,7 @@ def exec_func(func, d, dirs = None):
 
     lockflag = flags.get('lockfiles')
     if lockflag:
-        lockfiles = [d.expand(f) for f in lockflag.split()]
+        lockfiles = [f for f in d.expand(lockflag).split()]
     else:
         lockfiles = None
 
@@ -225,7 +227,7 @@ def exec_func_python(func, d, runfile, cwd=None):
     code = _functionfmt.format(function=func, body=d.getVar(func, True))
     bb.utils.mkdirhier(os.path.dirname(runfile))
     with open(runfile, 'w') as script:
-        script.write(code)
+        bb.data.emit_func_python(func, script, d)
 
     if cwd:
         try:
@@ -239,10 +241,9 @@ def exec_func_python(func, d, runfile, cwd=None):
     try:
         comp = utils.better_compile(code, func, bbfile)
         utils.better_exec(comp, {"d": d}, code, bbfile)
+    except (bb.parse.SkipRecipe, bb.build.FuncFailed):
+        raise
     except:
-        if sys.exc_info()[0] in (bb.parse.SkipPackage, bb.build.FuncFailed):
-            raise
-
         raise FuncFailed(func, None)
     finally:
         bb.debug(2, "Python function %s finished" % func)
@@ -253,19 +254,8 @@ def exec_func_python(func, d, runfile, cwd=None):
             except OSError:
                 pass
 
-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('''#!/bin/sh\n
+def shell_trap_code():
+    return '''#!/bin/sh\n
 # Emit a useful diagnostic if something fails:
 bb_exit_handler() {
     ret=$?
@@ -281,7 +271,21 @@ bb_exit_handler() {
 }
 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)
 
@@ -326,7 +330,7 @@ def _task_data(fn, task, d):
     localdata.setVar('BB_FILENAME', fn)
     localdata.setVar('BB_CURRENTTASK', task[3:])
     localdata.setVar('OVERRIDES', 'task-%s:%s' %
-                     (task[3:], d.getVar('OVERRIDES', False)))
+                     (task[3:].replace('_', '-'), d.getVar('OVERRIDES', False)))
     localdata.finalize()
     bb.data.expandKeys(localdata)
     return localdata
@@ -412,7 +416,7 @@ def _exec_task(fn, task, d, quieterr):
     os.dup2(logfile.fileno(), oso[1])
     os.dup2(logfile.fileno(), ose[1])
 
-    # Ensure python logging goes to the logfile
+    # Ensure Python logging goes to the logfile
     handler = logging.StreamHandler(logfile)
     handler.setFormatter(logformatter)
     # Always enable full debug output into task logfiles
@@ -472,12 +476,12 @@ def _exec_task(fn, task, d, quieterr):
     return 0
 
 def exec_task(fn, task, d, profile = False):
-    try: 
+    try:
         quieterr = False
         if d.getVarFlag(task, "quieterrors") is not None:
             quieterr = True
 
-        if profile: 
+        if profile:
             profname = "profile-%s.log" % (d.getVar("PN", True) + "-" + task)
             try:
                 import cProfile as profile
@@ -501,7 +505,7 @@ def exec_task(fn, task, d, profile = False):
             event.fire(failedevent, d)
         return 1
 
-def stamp_internal(taskname, d, file_name):
+def stamp_internal(taskname, d, file_name, baseonly=False):
     """
     Internal stamp helper function
     Makes sure the stamp directory exists
@@ -522,6 +526,9 @@ def stamp_internal(taskname, d, file_name):
         file_name = d.getVar('BB_FILENAME', True)
         extrainfo = d.getVarFlag(taskflagname, 'stamp-extra-info', True) or ""
 
+    if baseonly:
+        return stamp
+
     if not stamp:
         return
 
@@ -575,7 +582,7 @@ def make_stamp(task, d, file_name = None):
             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
@@ -586,8 +593,9 @@ def make_stamp(task, d, file_name = None):
     # 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', True)
-        bb.parse.siggen.dump_sigtask(file_name, task, d.getVar('STAMP', True), True)
+        bb.parse.siggen.dump_sigtask(file_name, task, stampbase, True)
 
 def del_stamp(task, d, file_name = None):
     """
@@ -622,7 +630,7 @@ def stampfile(taskname, d, file_name = None):
     """
     return stamp_internal(taskname, d, file_name)
 
-def add_tasks(tasklist, d):
+def add_tasks(tasklist, deltasklist, d):
     task_deps = d.getVar('_task_deps')
     if not task_deps:
         task_deps = {}
@@ -633,6 +641,10 @@ def add_tasks(tasklist, d):
 
     for task in tasklist:
         task = d.expand(task)
+
+        if task in deltasklist:
+            continue
+
         d.setVarFlag(task, 'task', 1)
 
         if not task in task_deps['tasks']:
@@ -664,9 +676,36 @@ def add_tasks(tasklist, d):
     # don't assume holding a reference
     d.setVar('_task_deps', task_deps)
 
-def remove_task(task, kill, d):
-    """Remove an BB 'task'.
+def addtask(task, before, after, d):
+    if task[:3] != "do_":
+        task = "do_" + task
 
-       If kill is 1, also remove tasks that depend on this task."""
+    d.setVarFlag(task, "task", 1)
+    bbtasks = d.getVar('__BBTASKS') or []
+    if not task in bbtasks:
+        bbtasks.append(task)
+    d.setVar('__BBTASKS', bbtasks)
+
+    existing = d.getVarFlag(task, "deps") 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") 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('__BBDELTASKS') or []
+    if not task in bbtasks:
+        bbtasks.append(task)
+    d.setVar('__BBDELTASKS', bbtasks)
 
-    d.delVarFlag(task, 'task')

bitbake/lib/bb/cache.py

@@ -43,7 +43,7 @@ except ImportError:
     logger.info("Importing cPickle failed. "
                 "Falling back to a very slow implementation.")
 
-__cache_version__ = "147"
+__cache_version__ = "148"
 
 def getCacheFile(path, filename, data_hash):
     return os.path.join(path, filename + "." + data_hash)
@@ -225,14 +225,16 @@ class CoreRecipeInfo(RecipeInfoCommon):
         for package in self.packages_dynamic:
             cachedata.packages_dynamic[package].append(fn)
 
-        # Build hash of runtime depends and rececommends
+        # Build hash of runtime depends and recommends
         for package in self.packages + [self.pn]:
             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 not self.not_world:
+        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
@@ -259,7 +261,7 @@ class Cache(object):
 
     def __init__(self, data, data_hash, caches_array):
         # Pass caches_array information into Cache Constructor
-        # It will be used in later for deciding whether we 
+        # 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", True)
@@ -527,8 +529,11 @@ class Cache(object):
         if hasattr(info_array[0], 'file_checksums'):
             for _, fl in info_array[0].file_checksums.items():
                 for f in fl.split():
-                    if not os.path.exists(f):
-                        logger.debug(2, "Cache: %s's file checksum list file %s was removed",
+                    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
@@ -618,10 +623,13 @@ class Cache(object):
     def mtime(cachefile):
         return bb.parse.cached_mtime_noerror(cachefile)
 
-    def add_info(self, filename, info_array, cacheData, parsed=None):
+    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
 
@@ -692,7 +700,7 @@ def init(cooker):
 
     * Its mtime
     * The mtimes of all its dependencies
-    * Whether it caused a parse.SkipPackage exception
+    * Whether it caused a parse.SkipRecipe exception
 
     Files causing parsing errors are evicted from the cache.
 
@@ -762,16 +770,6 @@ class MultiProcessCache(object):
 
         self.cachedata = data
 
-    def internSet(self, items):
-        new = set()
-        for i in items:
-            new.add(intern(i))
-        return new
-
-    def compress_keys(self, data):
-        # Override in subclasses if desired
-        return
-
     def create_cachedata(self):
         data = [{}]
         return data
@@ -812,15 +810,7 @@ class MultiProcessCache(object):
 
         glf = bb.utils.lockfile(self.cachefile + ".lock")
 
-        try:
-            with open(self.cachefile, "rb") as f:
-                p = pickle.Unpickler(f)
-                data, version = p.load()
-        except (IOError, EOFError):
-            data, version = None, None
-
-        if version != self.__class__.CACHE_VERSION:
-            data = self.create_cachedata()
+        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)
@@ -829,16 +819,16 @@ class MultiProcessCache(object):
                     p = pickle.Unpickler(fd)
                     extradata, version = p.load()
             except (IOError, EOFError):
-                extradata, version = self.create_cachedata(), None
+                os.unlink(f)
+                continue
 
             if version != self.__class__.CACHE_VERSION:
+                os.unlink(f)
                 continue
 
             self.merge_data(extradata, data)
             os.unlink(f)
 
-        self.compress_keys(data)
-
         with open(self.cachefile, "wb") as f:
             p = pickle.Pickler(f, -1)
             p.dump([data, self.__class__.CACHE_VERSION])

bitbake/lib/bb/codeparser.py

@@ -33,9 +33,82 @@ def check_indent(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(intern(i))
+        s = frozenset(new)
+        if hash(s) in self.setcache:
+            return self.setcache[hash(s)]
+        self.setcache[hash(s)] = 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)
+
+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)
+
 class CodeParserCache(MultiProcessCache):
     cache_file_name = "bb_codeparser.dat"
-    CACHE_VERSION = 4
+    CACHE_VERSION = 7
 
     def __init__(self):
         MultiProcessCache.__init__(self)
@@ -44,6 +117,27 @@ class CodeParserCache(MultiProcessCache):
         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):
         MultiProcessCache.init_cache(self, d)
 
@@ -51,25 +145,6 @@ class CodeParserCache(MultiProcessCache):
         self.pythoncache = self.cachedata[0]
         self.shellcache = self.cachedata[1]
 
-    def compress_keys(self, data):
-        # When the dicts 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 interning the data here, the cache file shrinks dramatically
-        # meaning faster load times and the reloaded cache files also consume much less
-        # memory. This is worth any performance hit from this loops and the use of the
-        # intern() data storage.
-        # Python 3.x may behave better in this area
-        for h in data[0]:
-            data[0][h]["refs"] = self.internSet(data[0][h]["refs"])
-            data[0][h]["execs"] = self.internSet(data[0][h]["execs"])
-            for k in data[0][h]["contains"]:
-                data[0][h]["contains"][k] = self.internSet(data[0][h]["contains"][k])
-        for h in data[1]:
-            data[1][h]["execs"] = self.internSet(data[1][h]["execs"])
-        return
-
     def create_cachedata(self):
         data = [{}, {}]
         return data
@@ -102,8 +177,8 @@ class BufferedLogger(Logger):
         self.buffer = []
 
 class PythonParser():
-    getvars = ("d.getVar", "bb.data.getVar", "data.getVar", "d.appendVar", "d.prependVar")
-    containsfuncs = ("bb.utils.contains", "base_contains", "oe.utils.contains")
+    getvars = (".getVar", ".appendVar", ".prependVar")
+    containsfuncs = ("bb.utils.contains", "base_contains", "oe.utils.contains", "bb.utils.contains_any")
     execfuncs = ("bb.build.exec_func", "bb.build.exec_task")
 
     def warn(self, func, arg):
@@ -122,7 +197,7 @@ class PythonParser():
 
     def visit_Call(self, node):
         name = self.called_node_name(node.func)
-        if name in self.getvars or name in self.containsfuncs:
+        if name and name.endswith(self.getvars) or name in self.containsfuncs:
             if isinstance(node.args[0], ast.Str):
                 varname = node.args[0].s
                 if name in self.containsfuncs and isinstance(node.args[1], ast.Str):
@@ -168,15 +243,19 @@ class PythonParser():
         h = hash(str(node))
 
         if h in codeparsercache.pythoncache:
-            self.references = codeparsercache.pythoncache[h]["refs"]
-            self.execs = codeparsercache.pythoncache[h]["execs"]
-            self.contains = codeparsercache.pythoncache[h]["contains"]
+            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 = codeparsercache.pythoncacheextras[h]["refs"]
-            self.execs = codeparsercache.pythoncacheextras[h]["execs"]
-            self.contains = codeparsercache.pythoncacheextras[h]["contains"]
+            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
 
         code = compile(check_indent(str(node)), "<string>", "exec",
@@ -186,12 +265,9 @@ class PythonParser():
             if n.__class__.__name__ == "Call":
                 self.visit_Call(n)
 
-        self.references.update(self.var_execs)
+        self.execs.update(self.var_execs)
 
-        codeparsercache.pythoncacheextras[h] = {}
-        codeparsercache.pythoncacheextras[h]["refs"] = self.references
-        codeparsercache.pythoncacheextras[h]["execs"] = self.execs
-        codeparsercache.pythoncacheextras[h]["contains"] = self.contains
+        codeparsercache.pythoncacheextras[h] = codeparsercache.newPythonCacheLine(self.references, self.execs, self.contains)
 
 class ShellParser():
     def __init__(self, name, log):
@@ -210,13 +286,21 @@ class ShellParser():
         h = hash(str(value))
 
         if h in codeparsercache.shellcache:
-            self.execs = codeparsercache.shellcache[h]["execs"]
+            self.execs = set(codeparsercache.shellcache[h].execs)
             return self.execs
 
         if h in codeparsercache.shellcacheextras:
-            self.execs = codeparsercache.shellcacheextras[h]["execs"]
+            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:
@@ -224,12 +308,6 @@ class ShellParser():
 
         for token in tokens:
             self.process_tokens(token)
-        self.execs = set(cmd for cmd in self.allexecs if cmd not in self.funcdefs)
-
-        codeparsercache.shellcacheextras[h] = {}
-        codeparsercache.shellcacheextras[h]["execs"] = self.execs
-
-        return self.execs
 
     def process_tokens(self, tokens):
         """Process a supplied portion of the syntax tree as returned by
@@ -303,7 +381,7 @@ class ShellParser():
 
                 if part[0] in ('`', '$('):
                     command = pyshlex.wordtree_as_string(part[1:-1])
-                    self.parse_shell(command)
+                    self._parse_shell(command)
 
                     if word[0] in ("cmd_name", "cmd_word"):
                         if word in words:
@@ -322,7 +400,7 @@ class ShellParser():
                     self.log.debug(1, self.unhandled_template % cmd)
                 elif cmd == "eval":
                     command = " ".join(word for _, word in words[1:])
-                    self.parse_shell(command)
+                    self._parse_shell(command)
                 else:
                     self.allexecs.add(cmd)
                 break

bitbake/lib/bb/command.py

@@ -86,7 +86,10 @@ class Command:
 
     def runAsyncCommand(self):
         try:
-            if self.cooker.state == bb.cooker.state.error:
+            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
@@ -257,6 +260,21 @@ class CommandsSync:
         mask = params[3]
         return bb.event.set_UIHmask(handlerNum, llevel, debug_domains, mask)
 
+    def setFeatures(self, command, params):
+        """
+        Set the cooker features to include the passed list of features
+        """
+        features = params[0]
+        command.cooker.setFeatures(features)
+
+    # 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]
+        command.cooker.updateConfigOpts(options)
+
 class CommandsAsync:
     """
     A class of asynchronous commands

bitbake/lib/bb/cooker.py

@@ -37,7 +37,11 @@ from collections import defaultdict
 import bb, bb.exceptions, bb.command
 from bb import utils, data, parse, event, cache, providers, taskdata, runqueue
 import Queue
+import signal
+import subprocess
+import errno
 import prserv.serv
+import pyinotify
 
 logger      = logging.getLogger("BitBake")
 collectlog  = logging.getLogger("BitBake.Collection")
@@ -81,7 +85,7 @@ class SkippedPackage:
 
 
 class CookerFeatures(object):
-    _feature_list = [HOB_EXTRA_CACHES, SEND_DEPENDS_TREE, BASEDATASTORE_TRACKING] = range(3)
+    _feature_list = [HOB_EXTRA_CACHES, SEND_DEPENDS_TREE, BASEDATASTORE_TRACKING, SEND_SANITYEVENTS] = range(4)
 
     def __init__(self):
         self._features=set()
@@ -110,15 +114,43 @@ class BBCooker:
     Manages one bitbake build run
     """
 
-    def __init__(self, configuration):
+    def __init__(self, configuration, featureSet = []):
         self.recipecache = None
         self.skiplist = {}
         self.featureset = CookerFeatures()
+        for f in featureSet:
+            self.featureset.setFeature(f)
 
         self.configuration = configuration
 
+        self.configwatcher = pyinotify.WatchManager()
+        self.configwatcher.bbseen = []
+        self.confignotifier = pyinotify.Notifier(self.configwatcher, self.config_notifications)
+        self.watchmask = pyinotify.IN_CLOSE_WRITE | pyinotify.IN_CREATE | pyinotify.IN_DELETE | \
+                         pyinotify.IN_DELETE_SELF | pyinotify.IN_MODIFY | pyinotify.IN_MOVE_SELF | \
+                         pyinotify.IN_MOVED_FROM | pyinotify.IN_MOVED_TO 
+        self.watcher = pyinotify.WatchManager()
+        self.watcher.bbseen = []
+        self.notifier = pyinotify.Notifier(self.watcher, self.notifications)
+
+
         self.initConfigurationData()
 
+        self.inotify_modified_files = []
+
+        def _process_inotify_updates(server, notifier_list, abort):
+            for n in notifier_list:
+                if n.check_events(timeout=0):
+                    # read notified events and enqeue them
+                    n.read_events()
+                    n.process_events()
+            return 1.0
+
+        self.configuration.server_register_idlecallback(_process_inotify_updates, [self.confignotifier, self.notifier])
+
+        self.baseconfig_valid = True
+        self.parsecache_valid = False
+
         # Take a lock so only one copy of bitbake can run against a given build
         # directory at a time
         lockfile = self.data.expand("${TOPDIR}/bitbake.lock")
@@ -149,6 +181,60 @@ class BBCooker:
 
         self.parser = None
 
+        signal.signal(signal.SIGTERM, self.sigterm_exception)
+        # Let SIGHUP exit as SIGTERM
+        signal.signal(signal.SIGHUP, self.sigterm_exception)
+
+    def config_notifications(self, event):
+        if not event.path in self.inotify_modified_files:
+            self.inotify_modified_files.append(event.path)
+        self.baseconfig_valid = False
+
+    def notifications(self, event):
+        if not event.path in self.inotify_modified_files:
+            self.inotify_modified_files.append(event.path)
+        self.parsecache_valid = False
+
+    def add_filewatch(self, deps, watcher=None):
+        if not watcher:
+            watcher = self.watcher
+        for i in deps:
+            f = i[0]
+            if f in watcher.bbseen:
+                continue
+            watcher.bbseen.append(f)
+            while True:
+                # We try and add watches for files that don't exist but if they did, would influence
+                # the parser. The parent directory of these files may not exist, in which case we need 
+                # to watch any parent that does exist for changes.
+                try:
+                    watcher.add_watch(f, self.watchmask, quiet=False)
+                    break
+                except pyinotify.WatchManagerError as e:
+                    if 'ENOENT' in str(e):
+                        f = os.path.dirname(f)
+                        watcher.bbseen.append(f)
+                        continue
+                    raise
+
+    def sigterm_exception(self, signum, stackframe):
+        if signum == signal.SIGTERM:
+            bb.warn("Cooker recieved SIGTERM, shutting down...")
+        elif signum == signal.SIGHUP:
+            bb.warn("Cooker recieved SIGHUP, shutting down...")
+        self.state = state.forceshutdown
+
+    def setFeatures(self, features):
+        # we only accept a new feature set if we're in state initial, so we can reset without problems
+        if self.state != state.initial:
+            raise Exception("Illegal state for feature set change")
+        original_featureset = list(self.featureset)
+        for feature in features:
+            self.featureset.setFeature(feature)
+        bb.debug(1, "Features set %s (was %s)" % (original_featureset, list(self.featureset)))
+        if (original_featureset != list(self.featureset)):
+            self.reset()
+
     def initConfigurationData(self):
 
         self.state = state.initial
@@ -176,8 +262,6 @@ class BBCooker:
                 sys.exit("FATAL: Failed to import extra cache class '%s'." % cache_name)
 
         self.databuilder = bb.cookerdata.CookerDataBuilder(self.configuration, False)
-        self.data = self.databuilder.data
-
         self.databuilder.parseBaseConfiguration()
         self.data = self.databuilder.data
         self.data_hash = self.databuilder.data_hash
@@ -194,11 +278,13 @@ class BBCooker:
 
     def enableDataTracking(self):
         self.configuration.tracking = True
-        self.data.enableTracking()
+        if hasattr(self, "data"):
+            self.data.enableTracking()
 
     def disableDataTracking(self):
         self.configuration.tracking = False
-        self.data.disableTracking()
+        if hasattr(self, "data"):
+            self.data.disableTracking()
 
     def modifyConfigurationVar(self, var, val, default_file, op):
         if op == "append":
@@ -321,6 +407,8 @@ class BBCooker:
                         contents[begin_line] = "\n"
                     #remove var from history
                     self.data.varhistory.del_var_history(var, conf_file, line)
+                    #remove variable
+                    self.data.delVar(var)
 
                 with open(conf_file, 'w') as f:
                     f.writelines(contents)
@@ -349,6 +437,10 @@ class BBCooker:
 
         self.handleCollections( self.data.getVar("BBFILE_COLLECTIONS", True) )
 
+    def updateConfigOpts(self,options):
+        for o in options:
+            setattr(self.configuration, o, options[o])
+
     def runCommands(self, server, data, abort):
         """
         Run any queued asynchronous command
@@ -380,7 +472,7 @@ class BBCooker:
 
     def showEnvironment(self, buildfile = None, pkgs_to_build = []):
         """
-        Show the outer or per-package environment
+        Show the outer or per-recipe environment
         """
         fn = None
         envdata = None
@@ -451,9 +543,14 @@ class BBCooker:
         current = 0
         runlist = []
         for k in fulltargetlist:
+            ktask = task
+            if ":do_" in k:
+                k2 = k.split(":do_")
+                k = k2[0]
+                ktask = k2[1]
             taskdata.add_provider(localdata, self.recipecache, k)
             current += 1
-            runlist.append([k, "do_%s" % task])
+            runlist.append([k, "do_%s" % ktask])
             bb.event.fire(bb.event.TreeDataPreparationProgress(current, len(fulltargetlist)), self.data)
         taskdata.add_unresolved(localdata, self.recipecache)
         bb.event.fire(bb.event.TreeDataPreparationCompleted(len(fulltargetlist)), self.data)
@@ -791,7 +888,6 @@ class BBCooker:
         or to find all machine configuration files one could call:
         findFilesMatchingInDir(self, 'conf/machines', 'conf')
         """
-        import re
 
         matches = []
         p = re.compile(re.escape(filepattern))
@@ -1211,13 +1307,18 @@ class BBCooker:
             else:
                 dest = image
 
+        basename = False
         if base_image:
             with open(base_image, 'r') as f:
                 require_line = f.readline()
+                p = re.compile("IMAGE_BASENAME *=")
+                for line in f:
+                    if p.search(line):
+                        basename = True
 
         with open(dest, "w") as imagefile:
             if base_image is None:
-                imagefile.write("inherit image\n")
+                imagefile.write("inherit core-image\n")
             else:
                 topdir = self.data.getVar("TOPDIR")
                 if topdir in base_image:
@@ -1232,6 +1333,11 @@ class BBCooker:
             description_var = "DESCRIPTION = \"" + description + "\"\n"
             imagefile.write(description_var)
 
+            if basename:
+                # If this is overwritten in a inherited image, reset it to default
+                image_basename = "IMAGE_BASENAME = \"${PN}\"\n"
+                imagefile.write(image_basename)
+
         self.state = state.initial
         if timestamp:
             return timestr
@@ -1241,12 +1347,28 @@ class BBCooker:
         if self.state == state.running:
             return
 
-        if self.state in (state.shutdown, state.forceshutdown):
-            self.parser.shutdown(clean=False, force = True)
+        if self.state in (state.shutdown, state.forceshutdown, state.error):
+            if hasattr(self.parser, 'shutdown'):
+                self.parser.shutdown(clean=False, force = True)
             raise bb.BBHandledException()
 
         if self.state != state.parsing:
+
+            # reload files for which we got notifications
+            for p in self.inotify_modified_files:
+                bb.parse.update_cache(p)
+            self.inotify_modified_files = []
+
+            if not self.baseconfig_valid:
+                logger.debug(1, "Reloading base configuration data")
+                self.initConfigurationData()
+                self.baseconfig_valid = True
+                self.parsecache_valid = False
+
+        if self.state != state.parsing and not self.parsecache_valid:
             self.parseConfiguration ()
+            if CookerFeatures.SEND_SANITYEVENTS in self.featureset:
+                bb.event.fire(bb.event.SanityCheck(False), self.data)
 
             ignore = self.data.getVar("ASSUME_PROVIDED", True) or ""
             self.recipecache.ignored_dependencies = set(ignore.split())
@@ -1258,9 +1380,12 @@ class BBCooker:
             (filelist, masked) = self.collection.collect_bbfiles(self.data, self.event_data)
 
             self.data.renameVar("__depends", "__base_depends")
+            self.add_filewatch(self.data.getVar("__base_depends"), self.configwatcher)
 
             self.parser = CookerParser(self, filelist, masked)
-            self.state = state.parsing
+            self.parsecache_valid = True
+
+        self.state = state.parsing
 
         if not self.parser.parse_next():
             collectlog.debug(1, "parsing complete")
@@ -1319,6 +1444,33 @@ class BBCooker:
     def post_serve(self):
         prserv.serv.auto_shutdown(self.data)
         bb.event.fire(CookerExit(), self.event_data)
+        lockfile = self.lock.name
+        self.lock.close()
+        self.lock = None
+
+        while not self.lock:
+            with bb.utils.timeout(3):
+                self.lock = bb.utils.lockfile(lockfile, shared=False, retry=False, block=True)
+                if not self.lock:
+                    # Some systems may not have lsof available
+                    procs = None
+                    try:
+                        procs = subprocess.check_output(["lsof", '-w', lockfile], stderr=subprocess.STDOUT)
+                    except OSError as e:
+                        if e.errno != errno.ENOENT:
+                            raise
+                    if procs is None:
+                        # Fall back to fuser if lsof is unavailable
+                        try:
+                            procs = subprocess.check_output(["fuser", '-v', lockfile], stderr=subprocess.STDOUT)
+                        except OSError as e:
+                            if e.errno != errno.ENOENT:
+                                raise
+
+                    msg = "Delaying shutdown due to active processes which appear to be holding bitbake.lock"
+                    if procs:
+                        msg += ":\n%s" % str(procs)
+                    print(msg)
 
     def shutdown(self, force = False):
         if force:
@@ -1367,6 +1519,7 @@ class CookerExit(bb.event.Event):
 class CookerCollectFiles(object):
     def __init__(self, priorities):
         self.appendlist = {}
+        self.bbappends = []
         self.appliedappendlist = []
         self.bbfile_config_priorities = priorities
 
@@ -1396,7 +1549,7 @@ class CookerCollectFiles(object):
             for ignored in ('SCCS', 'CVS', '.svn'):
                 if ignored in dirs:
                     dirs.remove(ignored)
-            found += [os.path.join(dir, f) for f in files if (f.endswith('.bb') or f.endswith('.bbappend'))]
+            found += [os.path.join(dir, f) for f in files if (f.endswith(['.bb', '.bbappend']))]
 
         return found
 
@@ -1461,6 +1614,7 @@ class CookerCollectFiles(object):
         # Build a list of .bbappend files for each .bb file
         for f in bbappend:
             base = os.path.basename(f).replace('.bbappend', '.bb')
+            self.bbappends.append((base, f))
             if not base in self.appendlist:
                self.appendlist[base] = []
             if f not in self.appendlist[base]:
@@ -1486,11 +1640,11 @@ class CookerCollectFiles(object):
         """
         filelist = []
         f = os.path.basename(fn)
-        for bbappend in self.appendlist:
+        for b in self.bbappends:
+            (bbappend, filename) = b
             if (bbappend == f) or ('%' in bbappend and bbappend.startswith(f[:bbappend.index('%')])):
                 self.appliedappendlist.append(bbappend)
-                for filename in self.appendlist[bbappend]:
-                    filelist.append(filename)
+                filelist.append(filename)
         return filelist
 
     def collection_priorities(self, pkgfns):
@@ -1510,10 +1664,10 @@ class CookerCollectFiles(object):
                 unmatched.add(regex)
 
         def findmatch(regex):
-            for bbfile in self.appendlist:
-                for append in self.appendlist[bbfile]:
-                    if regex.match(append):
-                        return True
+            for b in self.bbappends:
+                (bbfile, append) = b
+                if regex.match(append):
+                    return True
             return False
 
         for unmatch in unmatched.copy():
@@ -1822,7 +1976,7 @@ class CookerParser(object):
                 self.skipped += 1
                 self.cooker.skiplist[virtualfn] = SkippedPackage(info_array[0])
             self.bb_cache.add_info(virtualfn, info_array, self.cooker.recipecache,
-                                        parsed=parsed)
+                                        parsed=parsed, watcher = self.cooker.add_filewatch)
         return True
 
     def reparse(self, filename):

bitbake/lib/bb/cookerdata.py

@@ -69,6 +69,17 @@ class ConfigParameters(object):
             if bbpkgs:
                 self.options.pkgs_to_build.extend(bbpkgs.split())
 
+    def updateToServer(self, server):
+        options = {}
+        for o in ["abort", "tryaltconfigs", "force", "invalidate_stamp", 
+                  "verbose", "debug", "dry_run", "dump_signatures", 
+                  "debug_domains", "extra_assume_provided", "profile"]:
+            options[o] = getattr(self.options, o)
+
+        ret, error = server.runCommand(["updateConfig", options])
+        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}
@@ -124,7 +135,7 @@ class CookerConfiguration(object):
         self.profile = False
         self.nosetscene = False
         self.invalidate_stamp = False
-        self.dump_signatures = False
+        self.dump_signatures = []
         self.dry_run = False
         self.tracking = False
         self.interface = []
@@ -227,10 +238,13 @@ class CookerDataBuilder(object):
         try:
             self.parseConfigurationFiles(self.prefiles, self.postfiles)
         except SyntaxError:
-            sys.exit(1)
+            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")
-            sys.exit(1)
+            raise bb.BBHandledException
 
     def _findLayerConf(self, data):
         return findConfigFile("bblayers.conf", data)

bitbake/lib/bb/daemonize.py

@@ -1,5 +1,5 @@
 """
-Python Deamonizing helper
+Python Daemonizing helper
 
 Configurable daemon behaviors:
 
@@ -12,8 +12,11 @@ A failed call to fork() now raises an exception.
 
 References:
     1) Advanced Programming in the Unix Environment: W. Richard Stevens
-    2) Unix Programming Frequently Asked Questions:
-            http://www.erlenstar.demon.co.uk/unix/faq_toc.html
+	http://www.apuebook.com/apue3e.html
+    2) The Linux Programming Interface: Michael Kerrisk
+	http://man7.org/tlpi/index.html
+    3) Unix Programming Frequently Asked Questions:
+	http://www.faqs.org/faqs/unix-faq/programmer/faq/
 
 Modified to allow a function to be daemonized and return for 
 bitbake use by Richard Purdie
@@ -25,7 +28,7 @@ __version__ = "0.2"
 
 # Standard Python modules.
 import os                    # Miscellaneous OS interfaces.
-import sys                  # System-specific parameters and functions.
+import sys                   # System-specific parameters and functions.
 
 # Default daemon parameters.
 # File mode creation mask of the daemon.
@@ -128,7 +131,7 @@ def createDaemon(function, logfile):
     # of methods to accomplish this task.  Three are listed below.
     #
     # Try the system configuration variable, SC_OPEN_MAX, to obtain the maximum
-    # number of open file descriptors to close.  If it doesn't exists, use
+    # number of open file descriptors to close.  If it doesn't exist, use
     # the default value (configurable).
     #
     # try:
@@ -146,7 +149,7 @@ def createDaemon(function, logfile):
     # OR
     #
     # Use the getrlimit method to retrieve the maximum file descriptor number
-    # that can be opened by this process.  If there is not limit on the
+    # that can be opened by this process.  If there is no limit on the
     # resource, use the default value.
     #
     import resource             # Resource usage information.

bitbake/lib/bb/data.py

@@ -6,7 +6,7 @@ BitBake 'Data' implementations
 Functions for interacting with the data structure used by the
 BitBake build tools.
 
-The expandData and update_data are the most expensive
+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
@@ -15,7 +15,7 @@ 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 treade-off between speed and memory again but
+This is a trade-off between speed and memory again but
 the speed is more critical here.
 """
 
@@ -35,7 +35,7 @@ the speed is more critical here.
 # 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
+# Based on functions from the base bb module, Copyright 2003 Holger Schurig
 
 import sys, os, re
 if sys.argv[0][-5:] == "pydoc":
@@ -219,6 +219,13 @@ def emit_var(var, o=sys.__stdout__, d = init(), all=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 1
+
     if func:
         # NOTE: should probably check for unbalanced {} within the var
         o.write("%s() {\n%s\n}\n" % (varExpanded, val))
@@ -231,6 +238,7 @@ def emit_var(var, o=sys.__stdout__, d = init(), all=False):
     # 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 0
 
@@ -275,12 +283,47 @@ def emit_func(func, o=sys.__stdout__, d = init()):
         seen |= deps
         newdeps = set()
         for dep in deps:
-            if d.getVarFlag(dep, "func"):
+            if d.getVarFlag(dep, "func") and not d.getVarFlag(dep, "python"):
                emit_var(dep, o, d, False) and o.write('\n')
                newdeps |=  bb.codeparser.ShellParser(dep, logger).parse_shell(d.getVar(dep, True))
                newdeps |= set((d.getVarFlag(dep, "vardeps", True) 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, True)
+        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, True))
+    newdeps = pp.execs
+    newdeps |= set((d.getVarFlag(func, "vardeps", True) or "").split())
+    seen = set()
+    while newdeps:
+        deps = newdeps
+        seen |= deps
+        newdeps = set()
+        for dep in deps:
+            if d.getVarFlag(dep, "func") and d.getVarFlag(dep, "python"):
+               write_func(dep, o)
+               pp = bb.codeparser.PythonParser(dep, logger)
+               pp.parse_python(d.getVar(dep, True))
+               newdeps |= pp.execs
+               newdeps |= set((d.getVarFlag(dep, "vardeps", True) or "").split())
+        newdeps -= seen
+
 def update_data(d):
     """Performs final steps upon the datastore, including application of overrides"""
     d.finalize(parent = True)
@@ -295,15 +338,15 @@ def build_dependencies(key, keys, shelldeps, varflagsexcl, d):
             deps |= parser.references
             deps = deps | (keys & parser.execs)
             return deps, value
-        varflags = d.getVarFlags(key, ["vardeps", "vardepvalue", "vardepsexclude"]) or {}
+        varflags = d.getVarFlags(key, ["vardeps", "vardepvalue", "vardepsexclude", "vardepvalueexclude", "postfuncs", "prefuncs"]) or {}
         vardeps = varflags.get("vardeps")
         value = d.getVar(key, False)
 
         def handle_contains(value, contains, d):
             newvalue = ""
-            for k in contains:
+            for k in sorted(contains):
                 l = (d.getVar(k, True) or "").split()
-                for word in contains[k]:
+                for word in sorted(contains[k]):
                     if word in l:
                         newvalue += "\n%s{%s} = Set" %  (k, word)
                     else:
@@ -332,6 +375,10 @@ def build_dependencies(key, keys, shelldeps, varflagsexcl, d):
                 deps = deps | shelldeps
             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())
             deps = deps | parsedvar.references
             deps = deps | (keys & parser.execs) | (keys & parsedvar.execs)
             value = handle_contains(value, parsedvar.contains, d)
@@ -341,6 +388,12 @@ def build_dependencies(key, keys, shelldeps, varflagsexcl, d):
             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 = []

bitbake/lib/bb/data_smart.py

@@ -123,7 +123,7 @@ class VariableParse:
 
             for k in parser.contains:
                 if k not in self.contains:
-                    self.contains[k] = parser.contains[k]
+                    self.contains[k] = parser.contains[k].copy()
                 else:
                     self.contains[k].update(parser.contains[k])
             value = utils.better_eval(codeobj, DataContext(self.d))
@@ -263,7 +263,7 @@ class VariableHistory(object):
                     flag = ''
                 o.write("#   %s %s:%s%s\n#     %s\"%s\"\n" % (event['op'], event['file'], event['line'], display_func, flag, re.sub('\n', '\n#     ', event['detail'])))
             if len(history) > 1:
-                o.write("# computed:\n")
+                o.write("# pre-expansion value:\n")
                 o.write('#   "%s"\n' % (commentVal))
         else:
             o.write("#\n# $%s\n#   [no history recorded]\n#\n" % var)
@@ -334,7 +334,7 @@ class DataSmart(MutableMapping):
                     break
             except ExpansionError:
                 raise
-            except bb.parse.SkipPackage:
+            except bb.parse.SkipRecipe:
                 raise
             except Exception as exc:
                 raise ExpansionError(varname, s, exc)
@@ -513,10 +513,15 @@ class DataSmart(MutableMapping):
     def _setvar_update_overrides(self, var):
         # aka pay the cookie monster
         override = var[var.rfind('_')+1:]
-        if len(override) > 0:
+        shortvar = var[:var.rfind('_')]
+        while override:
             if override not in self._seen_overrides:
                 self._seen_overrides[override] = set()
             self._seen_overrides[override].add( var )
+            override = None
+            if "_" in shortvar:
+                override = var[shortvar.rfind('_')+1:]
+                shortvar = var[:shortvar.rfind('_')]
 
     def getVar(self, var, expand=False, noweakdefault=False):
         return self.getVarFlag(var, "_content", expand, noweakdefault)
@@ -610,10 +615,16 @@ class DataSmart(MutableMapping):
             else:
                 cachename = var + "[" + flag + "]"
             value = self.expand(value, cachename)
-        if value is not None and flag == "_content" and local_var is not None and "_removeactive" in local_var:
-            filtered = filter(lambda v: v not in local_var["_removeactive"],
-                              value.split(" "))
+        if value and flag == "_content" and local_var is not None and "_removeactive" in local_var:
+            removes = [self.expand(r).split()  for r in local_var["_removeactive"]]
+            removes = reduce(lambda a, b: a+b, removes, [])
+            filtered = filter(lambda v: v not in removes,
+                              value.split())
             value = " ".join(filtered)
+            if expand:
+                 # We need to ensure the expand cache has the correct value
+                 # flag == "_content" here
+                self.expand_cache[var].value = value
         return value
 
     def delVarFlag(self, var, flag, **loginfo):

bitbake/lib/bb/event.py

@@ -55,6 +55,7 @@ def get_class_handlers():
     return _handlers
 
 def set_class_handlers(h):
+    global _handlers
     _handlers = h
 
 def clean_class_handlers():
@@ -72,7 +73,7 @@ def execute_handler(name, handler, event, d):
     event.data = d
     try:
         ret = handler(event)
-    except bb.parse.SkipPackage:
+    except (bb.parse.SkipRecipe, bb.BBHandledException):
         raise
     except Exception:
         etype, value, tb = sys.exc_info()
@@ -94,10 +95,7 @@ def fire_class_handlers(event, d):
     evt_hmap = _event_handler_map.get(eid, {})
     for name, handler in _handlers.iteritems():
         if name in _catchall_handlers or name in evt_hmap:
-            try:
-                execute_handler(name, handler, event, d)
-            except Exception:
-                continue
+            execute_handler(name, handler, event, d)
 
 ui_queue = []
 @atexit.register
@@ -597,16 +595,19 @@ class MetadataEvent(Event):
     def __init__(self, eventtype, eventdata):
         Event.__init__(self)
         self.type = eventtype
-        self.data = eventdata
+        self._localdata = eventdata
 
 class SanityCheck(Event):
     """
-    Event to issue sanity check
+    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 is passed
+    Event to indicate sanity check has passed
     """
 
 class SanityCheckFailed(Event):
@@ -620,8 +621,11 @@ class SanityCheckFailed(Event):
 
 class NetworkTest(Event):
     """
-    Event to start network test
+    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):
     """

bitbake/lib/bb/fetch2/__init__.py

@@ -33,9 +33,6 @@ import glob
 import logging
 import urllib
 import urlparse
-if 'git' not in urlparse.uses_netloc:
-    urlparse.uses_netloc.append('git')
-from urlparse import urlparse
 import operator
 import bb.persist_data, bb.utils
 import bb.checksum
@@ -59,8 +56,11 @@ class BBFetchException(Exception):
 
 class MalformedUrl(BBFetchException):
     """Exception raised when encountering an invalid url"""
-    def __init__(self, url):
-         msg = "The URL: '%s' is invalid and cannot be interpreted" % url
+    def __init__(self, url, message=''):
+         if message:
+             msg = message
+         else:
+             msg = "The URL: '%s' is invalid and cannot be interpreted" % url
          self.url = url
          BBFetchException.__init__(self, msg)
          self.args = (url,)
@@ -165,6 +165,7 @@ class URI(object):
       * path_quoted (read/write)
         A URI quoted version of path
       * params (dict) (read/write)
+      * query (dict) (read/write)
       * relative (bool) (read only)
         True if this is a "relative URI", (e.g. file:foo.diff)
 
@@ -204,18 +205,35 @@ class URI(object):
         self.port = None
         self._path = ''
         self.params = {}
+        self.query = {}
         self.relative = False
 
         if not uri:
             return
 
-        urlp = urlparse(uri)
+        # We hijack the URL parameters, since the way bitbake uses
+        # them are not quite RFC compliant.
+        uri, param_str = (uri.split(";", 1) + [None])[:2]
+
+        urlp = urlparse.urlparse(uri)
         self.scheme = urlp.scheme
 
-        # Convert URI to be relative
+        reparse = 0
+
+        # Coerce urlparse to make URI scheme use netloc
+        if not self.scheme in urlparse.uses_netloc:
+            urlparse.uses_params.append(self.scheme)
+            reparse = 1
+
+        # Make urlparse happy(/ier) by converting local resources
+        # to RFC compliant URL format. E.g.:
+        #   file://foo.diff -> file:foo.diff
         if urlp.scheme in self._netloc_forbidden:
             uri = re.sub("(?<=:)//(?!/)", "", uri, 1)
-            urlp = urlparse(uri)
+            reparse = 1
+
+        if reparse:
+            urlp = urlparse.urlparse(uri)
 
         # Identify if the URI is relative or not
         if urlp.scheme in self._relative_schemes and \
@@ -231,49 +249,45 @@ class URI(object):
             if urlp.password:
                 self.userinfo += ':%s' % urlp.password
 
-        # Do support params even for URI schemes that Python's
-        # urlparse doesn't support params for.
-        path = ''
-        param_str = ''
-        if not urlp.params:
-            path, param_str = (list(urlp.path.split(";", 1)) + [None])[:2]
-        else:
-            path = urlp.path
-            param_str = urlp.params
-
-        self.path = urllib.unquote(path)
+        self.path = urllib.unquote(urlp.path)
 
         if param_str:
-            self.params = self._param_dict(param_str)
+            self.params = self._param_str_split(param_str, ";")
+        if urlp.query:
+            self.query = self._param_str_split(urlp.query, "&")
 
     def __str__(self):
         userinfo = self.userinfo
         if userinfo:
             userinfo += '@'
 
-        return "%s:%s%s%s%s%s" % (
+        return "%s:%s%s%s%s%s%s" % (
             self.scheme,
             '' if self.relative else '//',
             userinfo,
             self.hostport,
             self.path_quoted,
-            self._param_str)
+            self._query_str(),
+            self._param_str())
 
-    @property
     def _param_str(self):
-        ret = ''
-        for key, val in self.params.items():
-            ret += ";%s=%s" % (key, val)
+        return (
+            ''.join([';', self._param_str_join(self.params, ";")])
+            if self.params else '')
+
+    def _query_str(self):
+        return (
+            ''.join(['?', self._param_str_join(self.query, "&")])
+            if self.query else '')
+
+    def _param_str_split(self, string, elmdelim, kvdelim="="):
+        ret = {}
+        for k, v in [x.split(kvdelim, 1) for x in string.split(elmdelim)]:
+            ret[k] = v
         return ret
 
-    def _param_dict(self, param_str):
-        parm = {}
-
-        for keyval in param_str.split(";"):
-            key, val = keyval.split("=", 1)
-            parm[key] = val
-
-        return parm
+    def _param_str_join(self, dict_, elmdelim, kvdelim="="):
+        return elmdelim.join([kvdelim.join([k, v]) for k, v in dict_.items()])
 
     @property
     def hostport(self):
@@ -310,9 +324,10 @@ class URI(object):
 
     @username.setter
     def username(self, username):
+        password = self.password
         self.userinfo = username
-        if self.password:
-            self.userinfo += ":%s" % self.password
+        if password:
+            self.userinfo += ":%s" % password
 
     @property
     def password(self):
@@ -329,7 +344,7 @@ def decodeurl(url):
     user, password, parameters).
     """
 
-    m = re.compile('(?P<type>[^:]*)://((?P<user>.+)@)?(?P<location>[^;]+)(;(?P<parm>.*))?').match(url)
+    m = re.compile('(?P<type>[^:]*)://((?P<user>[^/]+)@)?(?P<location>[^;]+)(;(?P<parm>.*))?').match(url)
     if not m:
         raise MalformedUrl(url)
 
@@ -359,8 +374,11 @@ def decodeurl(url):
     p = {}
     if parm:
         for s in parm.split(';'):
-            s1, s2 = s.split('=')
-            p[s1] = s2
+            if s:
+                if not '=' in s:
+                    raise MalformedUrl(url, "The URL: '%s' is invalid: parameter %s does not specify a value (missing '=')" % (url, s))
+                s1, s2 = s.split('=')
+                p[s1] = s2
 
     return type, host, urllib.unquote(path), user, pswd, p
 
@@ -525,20 +543,21 @@ def verify_checksum(ud, d):
 
     if ud.method.recommends_checksum(ud):
         # If strict checking enabled and neither sum defined, raise error
-        strict = d.getVar("BB_STRICT_CHECKSUM", True) or None
-        if (strict and ud.md5_expected == None and ud.sha256_expected == None):
-            raise NoChecksumError('No checksum specified for %s, please add at least one to the recipe:\n'
+        strict = d.getVar("BB_STRICT_CHECKSUM", True) or "0"
+        if (strict == "1") and not (ud.md5_expected or ud.sha256_expected):
+            logger.error('No checksum specified for %s, please add at least one to the recipe:\n'
                              'SRC_URI[%s] = "%s"\nSRC_URI[%s] = "%s"' %
                              (ud.localpath, ud.md5_name, md5data,
-                              ud.sha256_name, sha256data), ud.url)
+                              ud.sha256_name, sha256data))
+            raise NoChecksumError('Missing SRC_URI checksum', ud.url)
 
         # Log missing sums so user can more easily add them
-        if ud.md5_expected == None:
+        if not ud.md5_expected:
             logger.warn('Missing md5 SRC_URI checksum for %s, consider adding to the recipe:\n'
                         'SRC_URI[%s] = "%s"',
                         ud.localpath, ud.md5_name, md5data)
 
-        if ud.sha256_expected == None:
+        if not ud.sha256_expected:
             logger.warn('Missing sha256 SRC_URI checksum for %s, consider adding to the recipe:\n'
                         'SRC_URI[%s] = "%s"',
                         ud.localpath, ud.sha256_name, sha256data)
@@ -807,9 +826,9 @@ def try_mirror_url(origud, ud, ld, check = False):
                 os.symlink(ud.localpath, dest)
             if not os.path.exists(origud.donestamp) or origud.method.need_update(origud, ld):
                 origud.method.download(origud, ld)
-                if hasattr(ud.method,"build_mirror_data"):
+                if hasattr(origud.method,"build_mirror_data"):
                     origud.method.build_mirror_data(origud, ld)
-            return None
+            return ud.localpath
         # Otherwise the result is a local file:// and we symlink to it
         if not os.path.exists(origud.localpath):
             if os.path.islink(origud.localpath):
@@ -866,32 +885,42 @@ def srcrev_internal_helper(ud, d, name):
         c) None if not specified
     """
 
-    if 'rev' in ud.parm:
-        return ud.parm['rev']
-
-    if 'tag' in ud.parm:
-        return ud.parm['tag']
-
-    rev = None
+    srcrev = None
     pn = d.getVar("PN", True)
+    attempts = []
+    if name != '' and pn:
+        attempts.append("SRCREV_%s_pn-%s" % (name, pn))
     if name != '':
-        rev = d.getVar("SRCREV_%s_pn-%s" % (name, pn), True)
-        if not rev:
-            rev = d.getVar("SRCREV_%s" % name, True)
-    if not rev:
-        rev = d.getVar("SRCREV_pn-%s" % pn, True)
-    if not rev:
-        rev = d.getVar("SRCREV", True)
-    if rev == "INVALID":
-        var = "SRCREV_pn-%s" % pn
-        if name != '':
-            var = "SRCREV_%s_pn-%s" % (name, pn)
-        raise FetchError("Please set %s to a valid value" % var, ud.url)
-    if rev == "AUTOINC":
-        rev = ud.method.latest_revision(ud, d, name)
+        attempts.append("SRCREV_%s" % name)
+    if pn:
+        attempts.append("SRCREV_pn-%s" % pn)
+    attempts.append("SRCREV")
 
-    return rev
+    for a in attempts:
+        srcrev = d.getVar(a, True)              
+        if srcrev and srcrev != "INVALID":
+            break
 
+    if 'rev' in ud.parm and 'tag' in ud.parm:
+        raise FetchError("Please specify a ;rev= parameter or a ;tag= parameter in the url %s but not both." % (ud.url))
+
+    if 'rev' in ud.parm or 'tag' in ud.parm:
+        if 'rev' in ud.parm:
+            parmrev = ud.parm['rev']
+        else:
+            parmrev = ud.parm['tag']
+        if srcrev == "INVALID" or not srcrev:
+            return parmrev
+        if srcrev != parmrev:
+            raise FetchError("Conflicting revisions (%s from SRCREV and %s from the url) found, please spcify one valid value" % (srcrev, parmrev))
+        return parmrev
+
+    if srcrev == "INVALID" or not srcrev:
+        raise FetchError("Please set a valid SRCREV for url %s (possible key names are %s, or use a ;rev=X URL parameter)" % (str(attempts), ud.url), ud.url)
+    if srcrev == "AUTOINC":
+        srcrev = ud.method.latest_revision(ud, d, name)
+
+    return srcrev
 
 def get_checksum_file_list(d):
     """ Get a list of files checksum in SRC_URI
@@ -907,20 +936,21 @@ def get_checksum_file_list(d):
         ud = fetch.ud[u]
 
         if ud and isinstance(ud.method, local.Local):
-            ud.setup_localpath(d)
-            f = ud.localpath
-            if f.startswith(dl_dir):
-                # The local fetcher's behaviour is to return a path under DL_DIR if it couldn't find the file anywhere else
-                if os.path.exists(f):
-                    bb.warn("Getting checksum for %s SRC_URI entry %s: file not found except in DL_DIR" % (d.getVar('PN', True), os.path.basename(f)))
-                else:
-                    bb.warn("Unable to get checksum for %s SRC_URI entry %s: file could not be found" % (d.getVar('PN', True), os.path.basename(f)))
-                    continue
-            filelist.append(f)
+            paths = ud.method.localpaths(ud, d)
+            for f in paths:
+                pth = ud.decodedurl
+                if '*' in pth:
+                    f = os.path.join(os.path.abspath(f), pth)
+                if f.startswith(dl_dir):
+                    # The local fetcher's behaviour is to return a path under DL_DIR if it couldn't find the file anywhere else
+                    if os.path.exists(f):
+                        bb.warn("Getting checksum for %s SRC_URI entry %s: file not found except in DL_DIR" % (d.getVar('PN', True), os.path.basename(f)))
+                    else:
+                        bb.warn("Unable to get checksum for %s SRC_URI entry %s: file could not be found" % (d.getVar('PN', True), os.path.basename(f)))
+                filelist.append(f + ":" + str(os.path.exists(f)))
 
     return " ".join(filelist)
 
-
 def get_file_checksums(filelist, pn):
     """Get a list of the checksums for a list of local files
 
@@ -937,27 +967,35 @@ def get_file_checksums(filelist, pn):
             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():
-        checksum = None
+        exist = pth.split(":")[1]
+        if exist == "False":
+            continue
+        pth = pth.split(":")[0]
         if '*' in pth:
             # Handle globs
             for f in glob.glob(pth):
-                checksum = checksum_file(f)
-                if checksum:
+                if os.path.isdir(f):
+                    checksums.extend(checksum_dir(f))
+                else:
+                    checksum = checksum_file(f)
                     checksums.append((f, checksum))
         elif os.path.isdir(pth):
-            # Handle directories
-            for root, dirs, files in os.walk(pth):
-                for name in files:
-                    fullpth = os.path.join(root, name)
-                    checksum = checksum_file(fullpth)
-                    if checksum:
-                        checksums.append((fullpth, checksum))
+            checksums.extend(checksum_dir(pth))
         else:
             checksum = checksum_file(pth)
-
-        if checksum:
             checksums.append((pth, checksum))
 
     checksums.sort(key=operator.itemgetter(1))
@@ -1220,17 +1258,22 @@ class FetchMethod(object):
                         destdir = destdir.strip('/')
                     if destdir != "." and not os.access("%s/%s" % (rootdir, destdir), os.F_OK):
                         os.makedirs("%s/%s" % (rootdir, destdir))
-                    cmd = 'cp -pPR %s %s/%s/' % (file, rootdir, destdir)
+                    cmd = 'cp -fpPR %s %s/%s/' % (file, rootdir, destdir)
                     #cmd = 'tar -cf - -C "%d" -ps . | tar -xf - -C "%s/%s/"' % (file, rootdir, destdir)
                 else:
                     # The "destdir" handling was specifically done for FILESPATH
                     # items.  So, only do so for file:// entries.
                     if urldata.type == "file" and urldata.path.find("/") != -1:
                        destdir = urldata.path.rsplit("/", 1)[0]
+                       if urldata.parm.get('subdir') != None:
+                          destdir = urldata.parm.get('subdir') + "/" + destdir
                     else:
-                       destdir = "."
+                       if urldata.parm.get('subdir') != None:
+                          destdir = urldata.parm.get('subdir')
+                       else:
+                          destdir = "."
                     bb.utils.mkdirhier("%s/%s" % (rootdir, destdir))
-                    cmd = 'cp %s %s/%s/' % (file, rootdir, destdir)
+                    cmd = 'cp -f %s %s/%s/' % (file, rootdir, destdir)
 
         if not cmd:
             return
@@ -1262,10 +1305,10 @@ class FetchMethod(object):
         return
 
     def clean(self, urldata, d):
-       """
-       Clean any existing full or partial download
-       """
-       bb.utils.remove(urldata.localpath)
+        """
+        Clean any existing full or partial download
+        """
+        bb.utils.remove(urldata.localpath)
 
     def try_premirror(self, urldata, d):
         """
@@ -1424,9 +1467,7 @@ class Fetch(object):
                 update_stamp(ud, self.d)
 
             except BBFetchException as e:
-                if isinstance(e, NoChecksumError):
-                    logger.error("%s" % str(e))
-                elif isinstance(e, ChecksumError):
+                if isinstance(e, ChecksumError):
                     logger.error("Checksum failure fetching %s" % u)
                 raise
 
@@ -1498,7 +1539,7 @@ class Fetch(object):
             ud = self.ud[url]
             ud.setup_localpath(self.d)
 
-            if not ud.localfile or self.localpath is None:
+            if not ud.localfile and ud.localpath is None:
                 continue
 
             if ud.lockfile:
@@ -1514,10 +1555,10 @@ class Fetch(object):
 from . import cvs
 from . import git
 from . import gitsm
+from . import gitannex
 from . import local
 from . import svn
 from . import wget
-from . import svk
 from . import ssh
 from . import sftp
 from . import perforce
@@ -1525,14 +1566,15 @@ from . import bzr
 from . import hg
 from . import osc
 from . import repo
+from . import clearcase
 
 methods.append(local.Local())
 methods.append(wget.Wget())
 methods.append(svn.Svn())
 methods.append(git.Git())
 methods.append(gitsm.GitSM())
+methods.append(gitannex.GitANNEX())
 methods.append(cvs.Cvs())
-methods.append(svk.Svk())
 methods.append(ssh.SSH())
 methods.append(sftp.SFTP())
 methods.append(perforce.Perforce())
@@ -1540,3 +1582,4 @@ methods.append(bzr.Bzr())
 methods.append(hg.Hg())
 methods.append(osc.Osc())
 methods.append(repo.Repo())
+methods.append(clearcase.ClearCase())

bitbake/lib/bb/fetch2/clearcase.py

@@ -0,0 +1,263 @@
+# 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").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 import data
+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", True) or spawn.find_executable("cleartool") or spawn.find_executable("rcleartool")
+
+        if data.getVar("SRCREV", d, True) == "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")
+        ud.customspec = d.getVar("CCASE_CUSTOM_CONFIG_SPEC", True)
+
+        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(data.getVar("DL_DIR", d, True), 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(data.getVar("DL_DIR", d, True), 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):
+            os.chdir(ud.ccasedir)
+            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)
+            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
+        os.chdir(ud.viewdir)
+        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)
+        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/git.py

@@ -44,6 +44,11 @@ Supported SRC_URI options are:
    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.
+
 """
 
 #Copyright (C) 2005 Richard Purdie
@@ -101,11 +106,14 @@ class Git(FetchMethod):
 
         ud.rebaseable = ud.parm.get("rebaseable","0") == "1"
 
+        ud.nobranch = ud.parm.get("nobranch","0") == "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)
@@ -113,8 +121,9 @@ class Git(FetchMethod):
         for name in ud.names:
             branch = branches[ud.names.index(name)]
             ud.branches[name] = branch
+            ud.unresolvedrev[name] = branch
 
-        ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
+        ud.basecmd = data.getVar("FETCHCMD_git", d, True) or "git -c core.fsyncobjectfiles=0"
 
         ud.write_tarballs = ((data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True) or "0") != "0") or ud.rebaseable
 
@@ -124,7 +133,7 @@ class Git(FetchMethod):
             # 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.branches[name] = 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('*', '.'))
@@ -150,7 +159,7 @@ class Git(FetchMethod):
             return True
         os.chdir(ud.clonedir)
         for name in ud.names:
-            if not self._contains_ref(ud.revisions[name], ud.branches[name], d):
+            if not self._contains_ref(ud, d, name):
                 return True
         if ud.write_tarballs and not os.path.exists(ud.fullmirror):
             return True
@@ -197,7 +206,7 @@ class Git(FetchMethod):
         # Update the checkout if needed
         needupdate = False
         for name in ud.names:
-            if not self._contains_ref(ud.revisions[name], ud.branches[name], d):
+            if not self._contains_ref(ud, d, name):
                 needupdate = True
         if needupdate:
             try: 
@@ -213,6 +222,10 @@ class Git(FetchMethod):
             runfetchcmd("%s prune-packed" % ud.basecmd, d)
             runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
             ud.repochanged = True
+        os.chdir(ud.clonedir)
+        for name in ud.names:
+            if not self._contains_ref(ud, d, name):
+                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):
         # Generate a mirror tarball if needed
@@ -232,7 +245,7 @@ class Git(FetchMethod):
         subdir = ud.parm.get("subpath", "")
         if subdir != "":
             readpathspec = ":%s" % (subdir)
-            def_destsuffix = "%s/" % os.path.basename(subdir)
+            def_destsuffix = "%s/" % os.path.basename(subdir.rstrip('/'))
         else:
             readpathspec = ""
             def_destsuffix = "git/"
@@ -262,7 +275,7 @@ class Git(FetchMethod):
             os.symlink(ud.clonedir, indirectiondir)
             clonedir = indirectiondir
 
-        runfetchcmd("git clone %s %s/ %s" % (cloneflags, clonedir, destdir), d)
+        runfetchcmd("%s clone %s %s/ %s" % (ud.basecmd, cloneflags, clonedir, destdir), d)
         if not ud.nocheckout:
             os.chdir(destdir)
             if subdir != "":
@@ -277,13 +290,19 @@ class Git(FetchMethod):
 
         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, tag, branch, d):
-        basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
-        cmd =  "%s branch --contains %s --list %s 2> /dev/null | wc -l" % (basecmd, tag, branch)
+    def _contains_ref(self, ud, d, name):
+        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)
         except bb.fetch2.FetchError:
@@ -296,25 +315,35 @@ class Git(FetchMethod):
         """
         Return a unique key for the url
         """
-        return "git:" + ud.host + ud.path.replace('/', '.') + ud.branches[name]
+        return "git:" + ud.host + ud.path.replace('/', '.') + ud.unresolvedrev[name]
 
-    def _latest_revision(self, ud, d, name):
+    def _lsremote(self, ud, d, search):
         """
-        Compute the HEAD revision for the url
+        Run git ls-remote with the specified search string
         """
         if ud.user:
             username = ud.user + '@'
         else:
             username = ""
 
-        basecmd = data.getVar("FETCHCMD_git", d, True) or "git"
         cmd = "%s ls-remote %s://%s%s%s %s" % \
-              (basecmd, ud.proto, username, ud.host, ud.path, ud.branches[name])
+              (ud.basecmd, ud.proto, username, ud.host, ud.path, search)
         if ud.proto.lower() != 'file':
             bb.fetch2.check_network_access(d, cmd)
         output = runfetchcmd(cmd, d, True)
         if not output:
             raise bb.fetch2.FetchError("The command %s gave empty output unexpectedly" % cmd, ud.url)
+        return output
+
+    def _latest_revision(self, ud, d, name):
+        """
+        Compute the HEAD revision for the url
+        """
+        if ud.unresolvedrev[name][:5] == "refs/":
+            search = "%s %s^{}" % (ud.unresolvedrev[name], ud.unresolvedrev[name])
+        else:
+            search = "refs/heads/%s refs/tags/%s^{}" % (ud.unresolvedrev[name], ud.unresolvedrev[name])
+        output = self._lsremote(ud, d, search)
         return output.split()[0]
 
     def _build_revision(self, ud, d, name):

bitbake/lib/bb/fetch2/gitannex.py

@@ -0,0 +1,76 @@
+# 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 import data
+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 uses_annex(self, ud, d):
+        for name in ud.names:
+            try:
+                runfetchcmd("%s rev-list git-annex" % (ud.basecmd), d, quiet=True)
+                return True
+            except bb.fetch.FetchError:
+                pass
+
+        return False
+
+    def update_annex(self, ud, d):
+        try:
+            runfetchcmd("%s annex get --all" % (ud.basecmd), d, quiet=True)
+        except bb.fetch.FetchError:
+            return False
+        runfetchcmd("chmod u+w -R %s/annex" % (ud.clonedir), d, quiet=True)
+
+        return True
+
+    def download(self, ud, d):
+        Git.download(self, ud, d)
+
+        os.chdir(ud.clonedir)
+        annex = self.uses_annex(ud, d)
+        if annex:
+            self.update_annex(ud, d)
+
+    def unpack(self, ud, destdir, d):
+        Git.unpack(self, ud, destdir, d)
+
+        os.chdir(ud.destdir)
+        try:
+            runfetchcmd("%s annex sync" % (ud.basecmd), d)
+        except bb.fetch.FetchError:
+            pass
+
+        annex = self.uses_annex(ud, d)
+        if annex:
+            runfetchcmd("%s annex get" % (ud.basecmd), d)
+            runfetchcmd("chmod u+w -R %s/.git/annex" % (ud.destdir), d, quiet=True)

bitbake/lib/bb/fetch2/gitsm.py

@@ -2,6 +2,16 @@
 # -*- 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
@@ -42,6 +52,53 @@ class GitSM(Git):
                 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"
@@ -51,9 +108,10 @@ class GitSM(Git):
         os.rename(ud.clonedir, gitdir)
         runfetchcmd("sed " + gitdir + "/config -i -e 's/bare.*=.*true/bare = false/'", d)
         os.chdir(tmpclonedir)
-        runfetchcmd("git reset --hard", d)
-        runfetchcmd("git submodule init", d)
-        runfetchcmd("git submodule update", d)
+        runfetchcmd(ud.basecmd + " reset --hard", d)
+        runfetchcmd(ud.basecmd + " submodule init", d)
+        runfetchcmd(ud.basecmd + " submodule update", d)
+        self._set_relative_paths(tmpclonedir)
         runfetchcmd("sed " + gitdir + "/config -i -e 's/bare.*=.*false/bare = true/'", d)
         os.rename(gitdir, ud.clonedir,)
         bb.utils.remove(tmpclonedir, True)
@@ -73,6 +131,6 @@ class GitSM(Git):
         submodules = self.uses_submodules(ud, d)
         if submodules:
             runfetchcmd("cp -r " + ud.clonedir + "/modules " + ud.destdir + "/.git/", d)
-            runfetchcmd("git submodule init", d)
-            runfetchcmd("git submodule update", d)
+            runfetchcmd(ud.basecmd + " submodule init", d)
+            runfetchcmd(ud.basecmd + " submodule update", d)
 

bitbake/lib/bb/fetch2/hg.py

@@ -110,7 +110,10 @@ class Hg(FetchMethod):
             options.append("-r %s" % ud.revision)
 
         if command == "fetch":
-            cmd = "%s clone %s %s://%s/%s %s" % (basecmd, " ".join(options), proto, hgroot, ud.module, ud.module)
+            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" % (basecmd, ud.user, ud.pswd, proto, " ".join(options), proto, hgroot, ud.module, ud.module)
+            else:
+                cmd = "%s clone %s %s://%s/%s %s" % (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
@@ -120,7 +123,10 @@ class Hg(FetchMethod):
             else:
                 cmd = "%s pull" % (basecmd)
         elif command == "update":
-            cmd = "%s update -C %s" % (basecmd, " ".join(options))
+            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" % (basecmd, ud.user, ud.pswd, proto, " ".join(options))
+            else:
+                cmd = "%s update -C %s" % (basecmd, " ".join(options))
         else:
             raise FetchError("Invalid hg command %s" % command, ud.url)
 

bitbake/lib/bb/fetch2/local.py

@@ -51,29 +51,41 @@ class Local(FetchMethod):
         """
         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] != "/":
-            filespath = data.getVar('FILESPATH', d, True)
-            if filespath:
-                logger.debug(2, "Searching for %s in paths:    \n%s" % (path, "\n    ".join(filespath.split(":"))))
-                newpath = bb.utils.which(filespath, path)
-            if not newpath:
-                filesdir = data.getVar('FILESDIR', d, True)
-                if filesdir:
-                    logger.debug(2, "Searching for %s in path: %s" % (path, filesdir))
-                    newpath = os.path.join(filesdir, path)
-            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 = bb.utils.which(filespath, ".")
-                logger.debug(2, "Searching for %s in path: %s" % (path, newpath))
-                return newpath
-            if not os.path.exists(newpath):
-                dldirfile = os.path.join(d.getVar("DL_DIR", True), path)
-                logger.debug(2, "Defaulting to %s for %s" % (dldirfile, path))
-                bb.utils.mkdirhier(os.path.dirname(dldirfile))
-                return dldirfile
-        return newpath
+        if path[0] == "/":
+            return [path]
+        filespath = data.getVar('FILESPATH', d, True)
+        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:
+            filesdir = data.getVar('FILESDIR', d, True)
+            if filesdir:
+                logger.debug(2, "Searching for %s in path: %s" % (path, filesdir))
+                newpath = os.path.join(filesdir, path)
+                searched.append(newpath)
+        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", True), 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:

bitbake/lib/bb/fetch2/perforce.py

@@ -48,7 +48,7 @@ class Perforce(FetchMethod):
             (user, pswd, host, port) = path.split('@')[0].split(":")
             path = path.split('@')[1]
         else:
-            (host, port) = data.getVar('P4PORT', d).split(':')
+            (host, port) = d.getVar('P4PORT').split(':')
             user = ""
             pswd = ""
 
@@ -81,7 +81,7 @@ class Perforce(FetchMethod):
         if host:
             p4opt += " -p %s" % (host)
 
-        p4date = data.getVar("P4DATE", d, True)
+        p4date = d.getVar("P4DATE", True)
         if "revision" in parm:
             depot += "#%s" % (parm["revision"])
         elif "label" in parm:
@@ -89,7 +89,7 @@ class Perforce(FetchMethod):
         elif p4date:
             depot += "@%s" % (p4date)
 
-        p4cmd = data.getVar('FETCHCOMMAND_p4', d, True)
+        p4cmd = d.getVar('FETCHCMD_p4', True) or "p4"
         logger.debug(1, "Running %s%s changes -m 1 %s", p4cmd, p4opt, depot)
         p4file, errors = bb.process.run("%s%s changes -m 1 %s" % (p4cmd, p4opt, depot))
         cset = p4file.strip()
@@ -103,22 +103,15 @@ class Perforce(FetchMethod):
     def urldata_init(self, ud, d):
         (host, path, user, pswd, parm) = Perforce.doparse(ud.url, d)
 
-        # If a label is specified, we use that as our filename
-
+        base_path = path.replace('/...', '')
+        base_path = self._strip_leading_slashes(base_path)
+        
         if "label" in parm:
-            ud.localfile = "%s.tar.gz" % (parm["label"])
-            return
+            version = parm["label"]
+        else:
+            version = Perforce.getcset(d, path, host, user, pswd, parm)
 
-        base = path
-        which = path.find('/...')
-        if which != -1:
-            base = path[:which-1]
-
-        base = self._strip_leading_slashes(base)
-
-        cset = Perforce.getcset(d, path, host, user, pswd, parm)
-
-        ud.localfile = data.expand('%s+%s+%s.tar.gz' % (host, base.replace('/', '.'), cset), d)
+        ud.localfile = data.expand('%s+%s+%s.tar.gz' % (host, base_path.replace('/', '.'), version), d)
 
     def download(self, ud, d):
         """
@@ -134,10 +127,6 @@ class Perforce(FetchMethod):
 
         module = parm.get('module', os.path.basename(path))
 
-        localdata = data.createCopy(d)
-        data.setVar('OVERRIDES', "p4:%s" % data.getVar('OVERRIDES', localdata), localdata)
-        data.update_data(localdata)
-
         # Get the p4 command
         p4opt = ""
         if user:
@@ -149,13 +138,13 @@ class Perforce(FetchMethod):
         if host:
             p4opt += " -p %s" % (host)
 
-        p4cmd = data.getVar('FETCHCOMMAND', localdata, True)
+        p4cmd = d.getVar('FETCHCMD_p4', True) or "p4"
 
         # create temp directory
         logger.debug(2, "Fetch: creating temporary directory")
-        bb.utils.mkdirhier(data.expand('${WORKDIR}', localdata))
-        data.setVar('TMPBASE', data.expand('${WORKDIR}/oep4.XXXXXX', localdata), localdata)
-        tmpfile, errors = bb.process.run(data.getVar('MKTEMPDIRCMD', localdata, True) or "false")
+        bb.utils.mkdirhier(d.expand('${WORKDIR}'))
+        mktemp = d.getVar("FETCHCMD_p4mktemp", True) or d.expand("mktemp -d -q '${WORKDIR}/oep4.XXXXXX'")
+        tmpfile, errors = bb.process.run(mktemp)
         tmpfile = tmpfile.strip()
         if not tmpfile:
             raise FetchError("Fetch: unable to create temporary directory.. make sure 'mktemp' is in the PATH.", ud.url)

bitbake/lib/bb/fetch2/svk.py

@@ -1,97 +0,0 @@
-# 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 svk. It is based on the svn implementation
-
-"""
-
-# Copyright (C) 2006 Holger Hans Peter Freyther
-# 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 import data
-from   bb.fetch2 import FetchMethod
-from   bb.fetch2 import FetchError
-from   bb.fetch2 import MissingParameterError
-from   bb.fetch2 import logger
-from   bb.fetch2 import runfetchcmd
-
-class Svk(FetchMethod):
-    """Class to fetch a module or modules from svk repositories"""
-    def supports(self, ud, d):
-        """
-        Check to see if a given url can be fetched with svk.
-        """
-        return ud.type in ['svk']
-
-    def urldata_init(self, ud, d):
-
-        if not "module" in ud.parm:
-            raise MissingParameterError('module', ud.url)
-        else:
-            ud.module = ud.parm["module"]
-
-        ud.revision = ud.parm.get('rev', "")
-
-        ud.localfile = data.expand('%s_%s_%s_%s_%s.tar.gz' % (ud.module.replace('/', '.'), ud.host, ud.path.replace('/', '.'), ud.revision, ud.date), d)
-
-    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):
-        """Fetch urls"""
-
-        svkroot = ud.host + ud.path
-
-        svkcmd = "svk co -r {%s} %s/%s" % (ud.date, svkroot, ud.module)
-
-        if ud.revision:
-            svkcmd = "svk co -r %s %s/%s" % (ud.revision, svkroot, ud.module)
-
-        # create temp directory
-        localdata = data.createCopy(d)
-        data.update_data(localdata)
-        logger.debug(2, "Fetch: creating temporary directory")
-        bb.utils.mkdirhier(data.expand('${WORKDIR}', localdata))
-        data.setVar('TMPBASE', data.expand('${WORKDIR}/oesvk.XXXXXX', localdata), localdata)
-        tmpfile, errors = bb.process.run(data.getVar('MKTEMPDIRCMD', localdata, True) or "false")
-        tmpfile = tmpfile.strip()
-        if not tmpfile:
-            logger.error()
-            raise FetchError("Fetch: unable to create temporary directory.. make sure 'mktemp' is in the PATH.", ud.url)
-
-        # check out sources there
-        os.chdir(tmpfile)
-        logger.info("Fetch " + ud.url)
-        logger.debug(1, "Running %s", svkcmd)
-        runfetchcmd(svkcmd, d, cleanup = [tmpfile])
-
-        os.chdir(os.path.join(tmpfile, os.path.dirname(ud.module)))
-        # tar them up to a defined filename
-        runfetchcmd("tar -czf %s %s" % (ud.localpath, os.path.basename(ud.module)), d, cleanup = [ud.localpath])
-
-        # cleanup
-        bb.utils.prunedir(tmpfile)

bitbake/lib/bb/fetch2/svn.py

@@ -101,7 +101,8 @@ class Svn(FetchMethod):
                 suffix = "@%s" % (ud.revision)
 
             if command == "fetch":
-                svncmd = "%s co %s %s://%s/%s%s %s" % (ud.basecmd, " ".join(options), proto, svnroot, ud.module, suffix, ud.module)
+                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.module)
             elif command == "update":
                 svncmd = "%s update %s" % (ud.basecmd, " ".join(options))
             else:

bitbake/lib/bb/fetch2/wget.py

@@ -58,40 +58,49 @@ class Wget(FetchMethod):
 
         ud.localfile = data.expand(urllib.unquote(ud.basename), d)
 
-    def download(self, ud, d, checkonly = False):
+        self.basecmd = d.getVar("FETCHCMD_wget", True) or "/usr/bin/env wget -t 2 -T 30 -nv --passive-ftp --no-check-certificate"
+
+    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)
+        runfetchcmd(command, d, quiet)
+
+    def download(self, ud, d):
         """Fetch urls"""
 
-        basecmd = d.getVar("FETCHCMD_wget", True) or "/usr/bin/env wget -t 2 -T 30 -nv --passive-ftp --no-check-certificate"
+        fetchcmd = self.basecmd
 
-        if not checkonly and 'downloadfilename' in ud.parm:
+        if 'downloadfilename' in ud.parm:
             dldir = d.getVar("DL_DIR", True)
             bb.utils.mkdirhier(os.path.dirname(dldir + os.sep + ud.localfile))
-            basecmd += " -O " + dldir + os.sep + ud.localfile
-
-        if checkonly:
-            fetchcmd = d.getVar("CHECKCOMMAND_wget", True) or d.expand(basecmd + " --spider '${URI}'")
-        elif os.path.exists(ud.localpath):
-            # file exists, but we didnt complete it.. trying again..
-            fetchcmd = d.getVar("RESUMECOMMAND_wget", True) or d.expand(basecmd + " -c -P ${DL_DIR} '${URI}'")
-        else:
-            fetchcmd = d.getVar("FETCHCOMMAND_wget", True) or d.expand(basecmd + " -P ${DL_DIR} '${URI}'")
+            fetchcmd += " -O " + dldir + os.sep + ud.localfile
 
         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)
 
-        fetchcmd = fetchcmd.replace("${URI}", uri.split(";")[0])
-        fetchcmd = fetchcmd.replace("${FILE}", ud.basename)
-        if not checkonly:
-            logger.info("fetch " + uri)
-            logger.debug(2, "executing " + fetchcmd)
-        bb.fetch2.check_network_access(d, fetchcmd)
-        runfetchcmd(fetchcmd, d, quiet=checkonly)
+        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) and not checkonly:
+        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, ud, d):
-        return self.download(ud, d, True)
+
+        uri = ud.url.split(";")[0]
+        fetchcmd = self.basecmd + " --spider '%s'" % uri
+
+        self._runwget(ud, d, fetchcmd, True)
+
+        return True

bitbake/lib/bb/monitordisk.py

@@ -52,10 +52,10 @@ def getMountedDev(path):
     parentDev = os.stat(path).st_dev
     currentDev = parentDev
     # When the current directory's device is different from the
-    # parrent's, then the current directory is a mount point
+    # parent's, then the current directory is a mount point
     while parentDev == currentDev:
         mountPoint = path
-        # Use dirname to get the parrent's directory
+        # Use dirname to get the parent's directory
         path = os.path.dirname(path)
         # Reach the "/"
         if path == mountPoint:
@@ -77,7 +77,7 @@ def getDiskData(BBDirs, configuration):
     """Prepare disk data for disk space monitor"""
 
     # Save the device IDs, need the ID to be unique (the dictionary's key is
-    # unique), so that when more than one directories are located in the same
+    # unique), so that when more than one directory is located on the same
     # device, we just monitor it once
     devDict = {}
     for pathSpaceInode in BBDirs.split():
@@ -187,11 +187,11 @@ class diskMonitor:
                 if self.spaceInterval and self.inodeInterval:
                     self.enableMonitor = True
                     # These are for saving the previous disk free space and inode, we
-                    # use them to avoid print too many warning messages
+                    # use them to avoid printing too many warning messages
                     self.preFreeS = {}
                     self.preFreeI = {}
-                    # This is for STOPTASKS and ABORT, to avoid print the message repeatly
-                    # during waiting the tasks to finish
+                    # This is for STOPTASKS and ABORT, to avoid printing the message
+                    # repeatedly while waiting for the tasks to finish
                     self.checked = {}
                     for k in self.devDict:
                         self.preFreeS[k] = 0
@@ -239,11 +239,9 @@ class diskMonitor:
                 freeInode = st.f_favail
 
                 if minInode and freeInode < minInode:
-                    # Some fs formats' (e.g., btrfs) statvfs.f_files (inodes) is
-                    # zero, this is a feature of the fs, we disable the inode
-                    # checking for such a fs.
+                    # Some filesystems use dynamic inodes so can't run out
+                    # (e.g. btrfs). This is reported by the inode count being 0.
                     if st.f_files == 0:
-                        logger.info("Inode check for %s is unavaliable, will remove it from disk monitor" % path)
                         self.devDict[k][2] = None
                         continue
                     # Always show warning, the self.checked would always be False if the action is WARN

bitbake/lib/bb/msg.py

@@ -126,7 +126,21 @@ class BBLogFilter(object):
             return True
         return False
 
+class BBLogFilterStdErr(BBLogFilter):
+    def filter(self, record):
+        if not BBLogFilter.filter(self, record):
+            return False
+        if record.levelno >= logging.ERROR:
+            return True
+        return False
 
+class BBLogFilterStdOut(BBLogFilter):
+    def filter(self, record):
+        if not BBLogFilter.filter(self, record):
+            return False
+        if record.levelno < logging.ERROR:
+            return True
+        return False
 
 # Message control functions
 #
@@ -164,10 +178,10 @@ def constructLogOptions():
         debug_domains["BitBake.%s" % domainarg] = logging.DEBUG - dlevel + 1
     return level, debug_domains
 
-def addDefaultlogFilter(handler):
+def addDefaultlogFilter(handler, cls = BBLogFilter):
     level, debug_domains = constructLogOptions()
 
-    BBLogFilter(handler, level, debug_domains)
+    cls(handler, level, debug_domains)
 
 #
 # Message handling functions

bitbake/lib/bb/namedtuple_with_abc.py

@@ -202,8 +202,8 @@ if __name__ == '__main__':
     print(rec5._replace(k=222)._my_custom_method())  # MyMixIn's
     print(rec5._replace(k=222).count(2))  # MyMixIn's
 
-    # None that behavior: the standard namedtuple methods cannot be
-    # overriden by a foreign mix-in -- even if the mix-in is declared
+    # Note that behavior: the standard namedtuple methods cannot be
+    # overridden by a foreign mix-in -- even if the mix-in is declared
     # as the leftmost base class (but, obviously, you can override them
     # in the defined class or its subclasses):
 

bitbake/lib/bb/parse/__init__.py

@@ -49,8 +49,11 @@ class ParseError(Exception):
         else:
             return "ParseError in %s: %s" % (self.filename, self.msg)
 
-class SkipPackage(Exception):
-    """Exception raised to skip this package"""
+class SkipRecipe(Exception):
+    """Exception raised to skip this recipe"""
+
+class SkipPackage(SkipRecipe):
+    """Exception raised to skip this recipe (use SkipRecipe in new code)"""
 
 __mtime_cache = {}
 def cached_mtime(f):
@@ -70,6 +73,11 @@ def update_mtime(f):
     __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
     return __mtime_cache[f]
 
+def update_cache(f):
+    if f in __mtime_cache:
+        logger.debug(1, "Updating mtime cache for %s" % f)
+        update_mtime(f)
+
 def mark_dependency(d, f):
     if f.startswith('./'):
         f = "%s/%s" % (os.getcwd(), f[2:])
@@ -121,13 +129,12 @@ def resolve_file(fn, d):
     if not os.path.isfile(fn):
         raise IOError("file %s not found" % fn)
 
-    logger.debug(2, "LOAD %s", fn)
     return fn
 
 # Used by OpenEmbedded metadata
 __pkgsplit_cache__={}
 def vars_from_file(mypkg, d):
-    if not mypkg:
+    if not mypkg or not mypkg.endswith((".bb", ".bbappend")):
         return (None, None, None)
     if mypkg in __pkgsplit_cache__:
         return __pkgsplit_cache__[mypkg]

bitbake/lib/bb/parse/ast.py

@@ -139,6 +139,8 @@ class DataNode(AstNode):
             data.setVar(key, val, **loginfo)
 
 class MethodNode(AstNode):
+    tr_tbl = string.maketrans('/.+-@%', '______')
+
     def __init__(self, filename, lineno, func_name, body):
         AstNode.__init__(self, filename, lineno)
         self.func_name = func_name
@@ -147,7 +149,7 @@ class MethodNode(AstNode):
     def eval(self, data):
         text = '\n'.join(self.body)
         if self.func_name == "__anonymous":
-            funcname = ("__anon_%s_%s" % (self.lineno, self.filename.translate(string.maketrans('/.+-@', '_____'))))
+            funcname = ("__anon_%s_%s" % (self.lineno, self.filename.translate(MethodNode.tr_tbl)))
             text = "def %s(d):\n" % (funcname) + text
             bb.methodpool.insert_method(funcname, text, self.filename)
             anonfuncs = data.getVar('__BBANONFUNCS') or []
@@ -224,6 +226,8 @@ class ExportFuncsNode(AstNode):
             if data.getVarFlag(calledfunc, "python"):
                 data.setVar(func, "    bb.build.exec_func('" + calledfunc + "', d)\n")
             else:
+                if "-" in self.classname:
+                   bb.fatal("The classname %s contains a dash character and is calling an sh function %s using EXPORT_FUNCTIONS. Since a dash is illegal in sh function names, this cannot work, please rename the class or don't use EXPORT_FUNCTIONS." % (self.classname, calledfunc))
                 data.setVar(func, "    " + calledfunc + "\n")
             data.setVarFlag(func, 'export_func', '1')
 
@@ -235,29 +239,15 @@ class AddTaskNode(AstNode):
         self.after = after
 
     def eval(self, data):
-        var = self.func
-        if self.func[:3] != "do_":
-            var = "do_" + self.func
+        bb.build.addtask(self.func, self.before, self.after, data)
 
-        data.setVarFlag(var, "task", 1)
-        bbtasks = data.getVar('__BBTASKS') or []
-        if not var in bbtasks:
-            bbtasks.append(var)
-        data.setVar('__BBTASKS', bbtasks)
+class DelTaskNode(AstNode):
+    def __init__(self, filename, lineno, func):
+        AstNode.__init__(self, filename, lineno)
+        self.func = func
 
-        existing = data.getVarFlag(var, "deps") or []
-        if self.after is not None:
-            # set up deps for function
-            for entry in self.after.split():
-                if entry not in existing:
-                    existing.append(entry)
-        data.setVarFlag(var, "deps", existing)
-        if self.before is not None:
-            # set up things that depend on this func
-            for entry in self.before.split():
-                existing = data.getVarFlag(entry, "deps") or []
-                if var not in existing:
-                    data.setVarFlag(entry, "deps", [var] + existing)
+    def eval(self, data):
+        bb.build.deltask(self.func, data)
 
 class BBHandlerNode(AstNode):
     def __init__(self, filename, lineno, fns):
@@ -309,6 +299,13 @@ def handleAddTask(statements, filename, lineno, m):
 
     statements.append(AddTaskNode(filename, lineno, func, before, after))
 
+def handleDelTask(statements, filename, lineno, m):
+    func = m.group("func")
+    if func is None:
+        return
+
+    statements.append(DelTaskNode(filename, lineno, func))
+
 def handleBBHandlers(statements, filename, lineno, m):
     statements.append(BBHandlerNode(filename, lineno, m.group(1)))
 
@@ -333,7 +330,8 @@ def finalize(fn, d, variant = None):
     bb.data.update_data(d)
 
     tasklist = d.getVar('__BBTASKS') or []
-    bb.build.add_tasks(tasklist, d)
+    deltasklist = d.getVar('__BBDELTASKS') or []
+    bb.build.add_tasks(tasklist, deltasklist, d)
 
     bb.parse.siggen.finalise(fn, d, variant)
 
@@ -341,8 +339,10 @@ def finalize(fn, d, variant = None):
 
     bb.event.fire(bb.event.RecipeParsed(fn), d)
 
-def _create_variants(datastores, names, function):
+def _create_variants(datastores, names, function, onlyfinalise):
     def create_variant(name, orig_d, arg = None):
+        if onlyfinalise and name not in onlyfinalise:
+            return
         new_d = bb.data.createCopy(orig_d)
         function(arg or name, new_d)
         datastores[name] = new_d
@@ -379,7 +379,7 @@ def _expand_versions(versions):
 def multi_finalize(fn, d):
     appends = (d.getVar("__BBAPPEND", True) or "").split()
     for append in appends:
-        logger.debug(2, "Appending .bbappend file %s to %s", append, fn)
+        logger.debug(1, "Appending .bbappend file %s to %s", append, fn)
         bb.parse.BBHandler.handle(append, d, True)
 
     onlyfinalise = d.getVar("__ONLYFINALISE", False)
@@ -388,7 +388,7 @@ def multi_finalize(fn, d):
     d = bb.data.createCopy(safe_d)
     try:
         finalize(fn, d)
-    except bb.parse.SkipPackage as e:
+    except bb.parse.SkipRecipe as e:
         d.setVar("__SKIPPED", e.args[0])
     datastores = {"": safe_d}
 
@@ -431,10 +431,10 @@ def multi_finalize(fn, d):
             verfunc(pv, d, safe_d)
             try:
                 finalize(fn, d)
-            except bb.parse.SkipPackage as e:
+            except bb.parse.SkipRecipe as e:
                 d.setVar("__SKIPPED", e.args[0])
 
-        _create_variants(datastores, versions, verfunc)
+        _create_variants(datastores, versions, verfunc, onlyfinalise)
 
     extended = d.getVar("BBCLASSEXTEND", True) or ""
     if extended:
@@ -464,14 +464,14 @@ def multi_finalize(fn, d):
             bb.parse.BBHandler.inherit(extendedmap[name], fn, 0, d)
 
         safe_d.setVar("BBCLASSEXTEND", extended)
-        _create_variants(datastores, extendedmap.keys(), extendfunc)
+        _create_variants(datastores, extendedmap.keys(), extendfunc, onlyfinalise)
 
     for variant, variant_d in datastores.iteritems():
         if variant:
             try:
                 if not onlyfinalise or variant in onlyfinalise:
                     finalize(fn, variant_d, variant)
-            except bb.parse.SkipPackage as e:
+            except bb.parse.SkipRecipe as e:
                 variant_d.setVar("__SKIPPED", e.args[0])
 
     if len(datastores) > 1:

bitbake/lib/bb/parse/parse_py/BBHandler.py

@@ -42,6 +42,7 @@ __func_start_regexp__    = re.compile( r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*
 __inherit_regexp__       = re.compile( r"inherit\s+(.+)" )
 __export_func_regexp__   = re.compile( r"EXPORT_FUNCTIONS\s+(.+)" )
 __addtask_regexp__       = re.compile("addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
+__deltask_regexp__       = re.compile("deltask\s+(?P<func>\w+)")
 __addhandler_regexp__    = re.compile( r"addhandler\s+(.+)" )
 __def_regexp__           = re.compile( r"def\s+(\w+).*:" )
 __python_func_regexp__   = re.compile( r"(\s+.*)|(^$)" )
@@ -85,7 +86,7 @@ def inherit(files, fn, lineno, d):
                 file = abs_fn
 
         if not file in __inherit_cache:
-            logger.log(logging.DEBUG -1, "BB %s:%d: inheriting %s", fn, lineno, file)
+            logger.debug(1, "Inheriting %s (from %s:%d)" % (file, fn, lineno))
             __inherit_cache.append( file )
             d.setVar('__inherit_cache', __inherit_cache)
             include(fn, file, lineno, d, "inherit")
@@ -123,12 +124,6 @@ def handle(fn, d, include):
     __classname__ = ""
     __residue__ = []
 
-
-    if include == 0:
-        logger.debug(2, "BB %s: handle(data)", fn)
-    else:
-        logger.debug(2, "BB %s: handle(data, include)", fn)
-
     base_name = os.path.basename(fn)
     (root, ext) = os.path.splitext(base_name)
     init(d)
@@ -159,7 +154,7 @@ def handle(fn, d, include):
 
     try:
         statements.eval(d)
-    except bb.parse.SkipPackage:
+    except bb.parse.SkipRecipe:
         bb.data.setVar("__SKIPPED", True, d)
         if include == 0:
             return { "" : d }
@@ -243,6 +238,11 @@ def feeder(lineno, s, fn, root, statements):
         ast.handleAddTask(statements, fn, lineno, m)
         return
 
+    m = __deltask_regexp__.match(s)
+    if m:
+        ast.handleDelTask(statements, fn, lineno, m)
+        return
+
     m = __addhandler_regexp__.match(s)
     if m:
         ast.handleBBHandlers(statements, fn, lineno, m)

bitbake/lib/bb/parse/parse_py/ConfHandler.py

@@ -144,7 +144,7 @@ def handle(fn, data, include):
         # skip comments
         if s[0] == '#':
             continue
-        feeder(lineno, s, fn, statements)
+        feeder(lineno, s, abs_fn, statements)
 
     # DONE WITH PARSING... time to evaluate
     data.setVar('FILE', abs_fn)

bitbake/lib/bb/persist_data.py

@@ -199,7 +199,9 @@ class PersistData(object):
         del self.data[domain][key]
 
 def connect(database):
-    return sqlite3.connect(database, timeout=5, isolation_level=None)
+    connection = sqlite3.connect(database, timeout=5, isolation_level=None)
+    connection.execute("pragma synchronous = off;")
+    return connection
 
 def persist(domain, d):
     """Convenience factory for SQLTable objects based upon metadata"""

bitbake/lib/bb/process.py

@@ -84,7 +84,7 @@ def _logged_communicate(pipe, log, input):
         while pipe.poll() is None:
             rlist = rin
             try:
-                r,w,e = select.select (rlist, [], [])
+                r,w,e = select.select (rlist, [], [], 1)
             except OSError as e:
                 if e.errno != errno.EINTR:
                     raise

bitbake/lib/bb/providers.py

@@ -325,7 +325,7 @@ def filterProvidersRunTime(providers, item, cfgData, dataCache):
         provides = dataCache.pn_provides[pn]
         for provide in provides:
             prefervar = cfgData.getVar('PREFERRED_PROVIDER_%s' % provide, True)
-            logger.debug(1, "checking PREFERRED_PROVIDER_%s (value %s) against %s", provide, prefervar, pns.keys())
+            #logger.debug(1, "checking PREFERRED_PROVIDER_%s (value %s) against %s", provide, prefervar, pns.keys())
             if prefervar in pns and pns[prefervar] not in preferred:
                 var = "PREFERRED_PROVIDER_%s = %s" % (provide, prefervar)
                 logger.verbose("selecting %s to satisfy runtime %s due to %s", prefervar, item, var)

bitbake/lib/bb/pysh/sherrors.py

@@ -38,4 +38,4 @@ class ExitSignal(ShellError):
     
 class ReturnSignal(ShellError):
     """Exit signal."""
-    pass
+    pass

bitbake/lib/bb/runqueue.py

@@ -30,6 +30,7 @@ import stat
 import fcntl
 import errno
 import logging
+import re
 import bb
 from bb import msg, data, event
 from bb import monitordisk
@@ -43,6 +44,8 @@ except ImportError:
 bblogger = logging.getLogger("BitBake")
 logger = logging.getLogger("BitBake.RunQueue")
 
+__find_md5__ = re.compile( r'(?i)(?<![a-z0-9])[a-f0-9]{32}(?![a-z0-9])' )
+
 class RunQueueStats:
     """
     Holds statistics on the tasks handled by the associated runQueue
@@ -94,7 +97,7 @@ class RunQueueScheduler(object):
     def __init__(self, runqueue, rqdata):
         """
         The default scheduler just returns the first buildable task (the
-        priority map is sorted by task numer)
+        priority map is sorted by task number)
         """
         self.rq = runqueue
         self.rqdata = rqdata
@@ -122,7 +125,10 @@ class RunQueueScheduler(object):
         if not self.buildable:
             return None
         if len(self.buildable) == 1:
-            return self.buildable[0]
+            taskid = self.buildable[0]
+            stamp = self.stamps[taskid]
+            if stamp not in self.rq.build_stamps.itervalues():
+                return taskid
 
         if not self.rev_prio_map:
             self.rev_prio_map = range(self.numTasks)
@@ -133,7 +139,7 @@ class RunQueueScheduler(object):
         bestprio = None
         for taskid in self.buildable:
             prio = self.rev_prio_map[taskid]
-            if not bestprio or bestprio > prio:
+            if bestprio is None or bestprio > prio:
                 stamp = self.stamps[taskid]
                 if stamp in self.rq.build_stamps.itervalues():
                     continue
@@ -180,7 +186,7 @@ class RunQueueSchedulerCompletion(RunQueueSchedulerSpeed):
     """
     A scheduler optimised to complete .bb files are quickly as possible. The
     priority map is sorted by task weight, but then reordered so once a given
-    .bb file starts to build, its completed as quickly as possible. This works
+    .bb file starts to build, it's completed as quickly as possible. This works
     well where disk space is at a premium and classes like OE's rm_work are in
     force.
     """
@@ -364,11 +370,11 @@ class RunQueueData:
 
         for listid in xrange(numTasks):
             task_done.append(False)
-            weight.append(0)
+            weight.append(1)
             deps_left.append(len(self.runq_revdeps[listid]))
 
         for listid in endpoints:
-            weight[listid] = 1
+            weight[listid] = 10
             task_done[listid] = True
 
         while True:
@@ -475,7 +481,7 @@ class RunQueueData:
             fn = taskData.fn_index[fnid]
             task_deps = self.dataCache.task_deps[fn]
 
-            logger.debug(2, "Processing %s:%s", fn, taskData.tasks_name[task])
+            #logger.debug(2, "Processing %s:%s", fn, taskData.tasks_name[task])
 
             if fnid not in taskData.failed_fnids:
 
@@ -789,7 +795,7 @@ class RunQueueData:
                 for st in self.cooker.configuration.invalidate_stamp.split(','):
                     invalidate_task(fn, "do_%s" % st, True)
 
-        # Interate over the task list and call into the siggen code
+        # Iterate over the task list and call into the siggen code
         dealtwith = set()
         todeal = set(range(len(self.runq_fnid)))
         while len(todeal) > 0:
@@ -802,19 +808,6 @@ class RunQueueData:
                         procdep.append(self.taskData.fn_index[self.runq_fnid[dep]] + "." + self.runq_task[dep])
                     self.runq_hash[task] = bb.parse.siggen.get_taskhash(self.taskData.fn_index[self.runq_fnid[task]], self.runq_task[task], procdep, self.dataCache)
 
-        self.hashes = {}
-        self.hash_deps = {}
-        for task in xrange(len(self.runq_fnid)):
-            identifier = '%s.%s' % (self.taskData.fn_index[self.runq_fnid[task]],
-                                    self.runq_task[task])
-            self.hashes[identifier] = self.runq_hash[task]
-            deps = []
-            for dep in self.runq_depends[task]:
-                depidentifier = '%s.%s' % (self.taskData.fn_index[self.runq_fnid[dep]],
-                                           self.runq_task[dep])
-                deps.append(depidentifier)
-            self.hash_deps[identifier] = deps
-
         return len(self.runq_fnid)
 
     def dump_data(self, taskQueue):
@@ -866,26 +859,27 @@ class RunQueue:
 
     def _start_worker(self, fakeroot = False, rqexec = None):
         logger.debug(1, "Starting bitbake-worker")
+        magic = "decafbad"
+        if self.cooker.configuration.profile:
+            magic = "decafbadbad"
         if fakeroot:
             fakerootcmd = self.cfgData.getVar("FAKEROOTCMD", True)
             fakerootenv = (self.cfgData.getVar("FAKEROOTBASEENV", True) or "").split()
             env = os.environ.copy()
             for key, value in (var.split('=') for var in fakerootenv):
                 env[key] = value
-            worker = subprocess.Popen([fakerootcmd, "bitbake-worker", "decafbad"], stdout=subprocess.PIPE, stdin=subprocess.PIPE, env=env)
+            worker = subprocess.Popen([fakerootcmd, "bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE, env=env)
         else:
-            worker = subprocess.Popen(["bitbake-worker", "decafbad"], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
+            worker = subprocess.Popen(["bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
         bb.utils.nonblockingfd(worker.stdout)
-        workerpipe = runQueuePipe(worker.stdout, None, self.cfgData, rqexec)
+        workerpipe = runQueuePipe(worker.stdout, None, self.cfgData, self, rqexec)
 
         workerdata = {
             "taskdeps" : self.rqdata.dataCache.task_deps,
             "fakerootenv" : self.rqdata.dataCache.fakerootenv,
             "fakerootdirs" : self.rqdata.dataCache.fakerootdirs,
             "fakerootnoenv" : self.rqdata.dataCache.fakerootnoenv,
-            "hashes" : self.rqdata.hashes,
-            "hash_deps" : self.rqdata.hash_deps,
-            "sigchecksums" : bb.parse.siggen.file_checksum_values,
+            "sigdata" : bb.parse.siggen.get_taskdata(),
             "runq_hash" : self.rqdata.runq_hash,
             "logdefaultdebug" : bb.msg.loggerDefaultDebugLevel,
             "logdefaultverbose" : bb.msg.loggerDefaultVerbose,
@@ -907,8 +901,11 @@ class RunQueue:
         if not worker:
             return
         logger.debug(1, "Teardown for bitbake-worker")
-        worker.stdin.write("<quit></quit>")
-        worker.stdin.flush()
+        try:
+           worker.stdin.write("<quit></quit>")
+           worker.stdin.flush()
+        except IOError:
+           pass
         while worker.returncode is None:
             workerpipe.read()
             worker.poll()
@@ -919,6 +916,7 @@ class RunQueue:
     def start_worker(self):
         if self.worker:
             self.teardown_workers()
+        self.teardown = False
         self.worker, self.workerpipe = self._start_worker()
 
     def start_fakeworker(self, rqexec):
@@ -926,6 +924,7 @@ class RunQueue:
             self.fakeworker, self.fakeworkerpipe = self._start_worker(True, rqexec)
 
     def teardown_workers(self):
+        self.teardown = True
         self._teardown_worker(self.worker, self.workerpipe)
         self.worker = None
         self.workerpipe = None
@@ -969,11 +968,11 @@ class RunQueue:
 
         stampfile = bb.build.stampfile(taskname, self.rqdata.dataCache, fn)
 
-        # If the stamp is missing its not current
+        # If the stamp is missing, it's not current
         if not os.access(stampfile, os.F_OK):
             logger.debug(2, "Stampfile %s not available", stampfile)
             return False
-        # If its a 'nostamp' task, it's not current
+        # If it's a 'nostamp' task, it's not current
         taskdep = self.rqdata.dataCache.task_deps[fn]
         if 'nostamp' in taskdep and taskname in taskdep['nostamp']:
             logger.debug(2, "%s.%s is nostamp\n", fn, taskname)
@@ -1038,8 +1037,14 @@ class RunQueue:
                     bb.event.fire(bb.event.DepTreeGenerated(depgraph), self.cooker.data)
 
         if self.state is runQueueSceneInit:
-            if self.cooker.configuration.dump_signatures:
-                self.dump_signatures()
+            dump = self.cooker.configuration.dump_signatures
+            if dump:
+                if 'printdiff' in dump:
+                    invalidtasks = self.print_diffscenetasks()
+                self.dump_signatures(dump)
+                if 'printdiff' in dump:
+                    self.write_diffscenetasks(invalidtasks)
+                self.state = runQueueComplete
             else:
                 self.start_worker()
                 self.rqexe = RunQueueExecuteScenequeue(self)
@@ -1059,9 +1064,9 @@ class RunQueue:
             retval = self.rqexe.execute()
 
         if self.state is runQueueCleanUp:
-           self.rqexe.finish()
+            retval = self.rqexe.finish()
 
-        if self.state is runQueueComplete or self.state is runQueueFailed:
+        if (self.state is runQueueComplete or self.state is runQueueFailed) and self.rqexe:
             self.teardown_workers()
             if self.rqexe.stats.failed:
                 logger.info("Tasks Summary: Attempted %d tasks of which %d didn't need to be rerun and %d failed.", self.rqexe.stats.completed + self.rqexe.stats.failed, self.rqexe.stats.skipped, self.rqexe.stats.failed)
@@ -1102,6 +1107,7 @@ class RunQueue:
 
     def finish_runqueue(self, now = False):
         if not self.rqexe:
+            self.state = runQueueComplete
             return
 
         if now:
@@ -1109,8 +1115,7 @@ class RunQueue:
         else:
             self.rqexe.finish()
 
-    def dump_signatures(self):
-        self.state = runQueueComplete
+    def dump_signatures(self, options):
         done = set()
         bb.note("Reparsing files to collect dependency data")
         for task in range(len(self.rqdata.runq_fnid)):
@@ -1119,10 +1124,126 @@ class RunQueue:
                 the_data = bb.cache.Cache.loadDataFull(fn, self.cooker.collection.get_file_appends(fn), self.cooker.data)
                 done.add(self.rqdata.runq_fnid[task])
 
-        bb.parse.siggen.dump_sigs(self.rqdata.dataCache)
+        bb.parse.siggen.dump_sigs(self.rqdata.dataCache, options)
 
         return
 
+    def print_diffscenetasks(self):
+
+        valid = []
+        sq_hash = []
+        sq_hashfn = []
+        sq_fn = []
+        sq_taskname = []
+        sq_task = []
+        noexec = []
+        stamppresent = []
+        valid_new = set()
+
+        for task in xrange(len(self.rqdata.runq_fnid)):
+            fn = self.rqdata.taskData.fn_index[self.rqdata.runq_fnid[task]]
+            taskname = self.rqdata.runq_task[task]
+            taskdep = self.rqdata.dataCache.task_deps[fn]
+
+            if 'noexec' in taskdep and taskname in taskdep['noexec']:
+                noexec.append(task)
+                continue
+
+            sq_fn.append(fn)
+            sq_hashfn.append(self.rqdata.dataCache.hashfn[fn])
+            sq_hash.append(self.rqdata.runq_hash[task])
+            sq_taskname.append(taskname)
+            sq_task.append(task)
+        call = self.hashvalidate + "(sq_fn, sq_task, sq_hash, sq_hashfn, d)"
+        locs = { "sq_fn" : sq_fn, "sq_task" : sq_taskname, "sq_hash" : sq_hash, "sq_hashfn" : sq_hashfn, "d" : self.cooker.data }
+        valid = bb.utils.better_eval(call, locs)
+        for v in valid:
+            valid_new.add(sq_task[v])
+
+        # Tasks which are both setscene and noexec never care about dependencies
+        # We therefore find tasks which are setscene and noexec and mark their
+        # unique dependencies as valid.
+        for task in noexec:
+            if task not in self.rqdata.runq_setscene:
+                continue
+            for dep in self.rqdata.runq_depends[task]:
+                hasnoexecparents = True
+                for dep2 in self.rqdata.runq_revdeps[dep]:
+                    if dep2 in self.rqdata.runq_setscene and dep2 in noexec:
+                        continue
+                    hasnoexecparents = False
+                    break
+                if hasnoexecparents:
+                    valid_new.add(dep)
+
+        invalidtasks = set()
+        for task in xrange(len(self.rqdata.runq_fnid)):
+            if task not in valid_new and task not in noexec:
+                invalidtasks.add(task)
+
+        found = set()
+        processed = set()
+        for task in invalidtasks:
+            toprocess = set([task])
+            while toprocess:
+                next = set()
+                for t in toprocess:
+                    for dep in self.rqdata.runq_depends[t]:
+                        if dep in invalidtasks:
+                            found.add(task)
+                        if dep not in processed:
+                            processed.add(dep)
+                            next.add(dep)
+                toprocess = next
+                if task in found:
+                    toprocess = set()
+
+        tasklist = []
+        for task in invalidtasks.difference(found):
+            tasklist.append(self.rqdata.get_user_idstring(task))
+
+        if tasklist:
+            bb.plain("The differences between the current build and any cached tasks start at the following tasks:\n" + "\n".join(tasklist))
+
+        return invalidtasks.difference(found)
+
+    def write_diffscenetasks(self, invalidtasks):
+
+        # Define recursion callback
+        def recursecb(key, hash1, hash2):
+            hashes = [hash1, hash2]
+            hashfiles = bb.siggen.find_siginfo(key, None, hashes, self.cfgData)
+
+            recout = []
+            if len(hashfiles) == 2:
+                out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb)
+                recout.extend(list('  ' + l for l in out2))
+            else:
+                recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
+
+            return recout
+
+
+        for task in invalidtasks:
+            fn = self.rqdata.taskData.fn_index[self.rqdata.runq_fnid[task]]
+            pn = self.rqdata.dataCache.pkg_fn[fn]
+            taskname = self.rqdata.runq_task[task]
+            h = self.rqdata.runq_hash[task]
+            matches = bb.siggen.find_siginfo(pn, taskname, [], self.cfgData)
+            match = None
+            for m in matches:
+                if h in m:
+                    match = m
+            if match is None:
+                bb.fatal("Can't find a task we're supposed to have written out? (hash: %s)?" % h)
+            matches = {k : v for k, v in matches.iteritems() if h not in k}
+            if matches:
+                latestmatch = sorted(matches.keys(), key=lambda f: matches[f])[-1]
+                prevh = __find_md5__.search(latestmatch).group(0)
+                output = bb.siggen.compare_sigfiles(latestmatch, match, recursecb)
+                bb.plain("\nTask %s:%s couldn't be used from the cache because:\n  We need hash %s, closest matching task was %s\n  " % (pn, taskname, h, prevh) + '\n  '.join(output))
+            else:
+                bb.plain("Error, can't find multiple tasks at divergence point? Was there a previously run task?")
 
 class RunQueueExecute:
 
@@ -1164,11 +1285,15 @@ class RunQueueExecute:
 
     def finish_now(self):
 
-        self.rq.worker.stdin.write("<finishnow></finishnow>")
-        self.rq.worker.stdin.flush()
-        if self.rq.fakeworker:
-            self.rq.fakeworker.stdin.write("<finishnow></finishnow>")
-            self.rq.fakeworker.stdin.flush()
+        for worker in [self.rq.worker, self.rq.fakeworker]:
+            if not worker:
+                continue
+            try:
+                worker.stdin.write("<finishnow></finishnow>")
+                worker.stdin.flush()
+            except IOError:
+                # worker must have died?
+                pass
 
         if len(self.failed_fnids) != 0:
             self.rq.state = runQueueFailed
@@ -1183,15 +1308,14 @@ class RunQueueExecute:
         if self.stats.active > 0:
             bb.event.fire(runQueueExitWait(self.stats.active), self.cfgData)
             self.rq.read_workers()
-
-            return
+            return self.rq.active_fds()
 
         if len(self.failed_fnids) != 0:
             self.rq.state = runQueueFailed
-            return
+            return True
 
         self.rq.state = runQueueComplete
-        return
+        return True
 
     def check_dependencies(self, task, taskdeps, setscene = False):
         if not self.rq.depvalidate:
@@ -1430,7 +1554,8 @@ class RunQueueExecuteTasks(RunQueueExecute):
                 bb.event.fire(startevent, self.cfgData)
                 self.runq_running[task] = 1
                 self.stats.taskActive()
-                bb.build.make_stamp(taskname, self.rqdata.dataCache, fn)
+                if not self.cooker.configuration.dry_run:
+                    bb.build.make_stamp(taskname, self.rqdata.dataCache, fn)
                 self.task_complete(task)
                 return True
             else:
@@ -1515,7 +1640,7 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
         sq_revdeps = []
         sq_revdeps_new = []
         sq_revdeps_squash = []
-        self.sq_harddeps = []
+        self.sq_harddeps = {}
 
         # We need to construct a dependency graph for the setscene functions. Intermediate
         # dependencies between the setscene tasks only complicate the code. This code
@@ -1565,7 +1690,7 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
 
         process_endpoints(endpoints)
 
-        # Build a list of setscene tasks which as "unskippable"
+        # Build a list of setscene tasks which are "unskippable"
         # These are direct endpoints referenced by the build
         endpoints2 = {}
         sq_revdeps2 = []
@@ -1626,15 +1751,23 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
                     dep = self.rqdata.taskData.fn_index[depdata]
                     taskid = self.rqdata.get_task_id(self.rqdata.taskData.getfn_id(dep), idependtask.replace("_setscene", ""))
                     if taskid is None:
-                        bb.msg.fatal("RunQueue", "Task %s:%s depends upon non-existent task %s:%s" % (self.rqdata.taskData.fn_index[self.rqdata.runq_fnid[realid]], self.rqdata.taskData.tasks_name[realid], dep, idependtask))
+                        bb.msg.fatal("RunQueue", "Task %s_setscene depends upon non-existent task %s:%s" % (self.rqdata.get_user_idstring(task), dep, idependtask))
+
+                    if not self.rqdata.runq_setscene.index(taskid) in self.sq_harddeps:
+                        self.sq_harddeps[self.rqdata.runq_setscene.index(taskid)] = set()
+                    self.sq_harddeps[self.rqdata.runq_setscene.index(taskid)].add(self.rqdata.runq_setscene.index(task))
 
-                    self.sq_harddeps.append(self.rqdata.runq_setscene.index(taskid))
                     sq_revdeps_squash[self.rqdata.runq_setscene.index(task)].add(self.rqdata.runq_setscene.index(taskid))
                     # Have to zero this to avoid circular dependencies
                     sq_revdeps_squash[self.rqdata.runq_setscene.index(taskid)] = set()
 
+        for task in self.sq_harddeps:
+             for dep in self.sq_harddeps[task]:
+                 sq_revdeps_squash[dep].add(task)
+
         #for task in xrange(len(sq_revdeps_squash)):
-        #    print "Task %s: %s.%s is %s " % (task, self.rqdata.taskData.fn_index[self.rqdata.runq_fnid[self.rqdata.runq_setscene[task]]], self.rqdata.runq_task[self.rqdata.runq_setscene[task]] + "_setscene", sq_revdeps_squash[task])
+        #    realtask = self.rqdata.runq_setscene[task]
+        #    bb.warn("Task %s: %s_setscene is %s " % (task, self.rqdata.get_user_idstring(realtask) , sq_revdeps_squash[task]))
 
         self.sq_deps = []
         self.sq_revdeps = sq_revdeps_squash
@@ -1650,6 +1783,7 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
             if len(self.sq_revdeps[task]) == 0:
                 self.runq_buildable[task] = 1
 
+        self.outrightfail = []
         if self.rq.hashvalidate:
             sq_hash = []
             sq_hashfn = []
@@ -1700,7 +1834,7 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
                     realtask = self.rqdata.runq_setscene[task]
                     logger.debug(2, 'No package found, so skipping setscene task %s',
                                  self.rqdata.get_user_idstring(realtask))
-                    self.task_failoutright(task)
+                    self.outrightfail.append(task)
 
         logger.info('Executing SetScene Tasks')
 
@@ -1708,7 +1842,14 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
 
     def scenequeue_updatecounters(self, task, fail = False):
         for dep in self.sq_deps[task]:
-            if fail and task in self.sq_harddeps:
+            if fail and task in self.sq_harddeps and dep in self.sq_harddeps[task]:
+                realtask = self.rqdata.runq_setscene[task]
+                realdep = self.rqdata.runq_setscene[dep]
+                logger.debug(2, "%s was unavailable and is a hard dependency of %s so skipping" % (self.rqdata.get_user_idstring(realtask), self.rqdata.get_user_idstring(realdep)))
+                self.scenequeue_updatecounters(dep, fail)
+                continue
+            if task not in self.sq_revdeps2[dep]:
+                # May already have been removed by the fail case above
                 continue
             self.sq_revdeps2[dep].remove(task)
             if len(self.sq_revdeps2[dep]) == 0:
@@ -1770,9 +1911,20 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
                     if nexttask in self.unskippable:
                         logger.debug(2, "Setscene task %s is unskippable" % self.rqdata.get_user_idstring(self.rqdata.runq_setscene[nexttask]))                      
                     if nexttask not in self.unskippable and len(self.sq_revdeps[nexttask]) > 0 and self.sq_revdeps[nexttask].issubset(self.scenequeue_covered) and self.check_dependencies(nexttask, self.sq_revdeps[nexttask], True):
-                        logger.debug(2, "Skipping setscene for task %s" % self.rqdata.get_user_idstring(self.rqdata.runq_setscene[nexttask]))
-                        self.task_skip(nexttask)
-                        self.scenequeue_notneeded.add(nexttask)
+                        realtask = self.rqdata.runq_setscene[nexttask]
+                        fn = self.rqdata.taskData.fn_index[self.rqdata.runq_fnid[realtask]]
+                        foundtarget = False
+                        for target in self.rqdata.target_pairs:
+                            if target[0] == fn and target[1] == self.rqdata.runq_task[realtask]:
+                                foundtarget = True
+                                break
+                        if not foundtarget:
+                            logger.debug(2, "Skipping setscene for task %s" % self.rqdata.get_user_idstring(self.rqdata.runq_setscene[nexttask]))
+                            self.task_skip(nexttask)
+                            self.scenequeue_notneeded.add(nexttask)
+                            return True
+                    if nexttask in self.outrightfail:
+                        self.task_failoutright(nexttask)
                         return True
                     task = nexttask
                     break
@@ -1821,6 +1973,12 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
             self.rq.read_workers()
             return self.rq.active_fds()
 
+        #for task in xrange(self.stats.total):
+        #    if self.runq_running[task] != 1:
+        #        buildable = self.runq_buildable[task]
+        #        revdeps = self.sq_revdeps[task]
+        #        bb.warn("Found we didn't run %s %s %s %s" % (task, buildable, str(revdeps), self.rqdata.get_user_idstring(self.rqdata.runq_setscene[task])))
+
         # Convert scenequeue_covered task numbers into full taskgraph ids
         oldcovered = self.scenequeue_covered
         self.rq.scenequeue_covered = set()
@@ -1833,6 +1991,10 @@ class RunQueueExecuteScenequeue(RunQueueExecute):
         logger.debug(1, 'We can skip tasks %s', sorted(self.rq.scenequeue_covered))
 
         self.rq.state = runQueueRunInit
+
+        completeevent = sceneQueueComplete(self.stats, self.rq)
+        bb.event.fire(completeevent, self.cfgData)
+
         return True
 
     def runqueue_process_waitpid(self, task, status):
@@ -1881,11 +2043,11 @@ class sceneQueueEvent(runQueueEvent):
         self.taskstring = rq.rqdata.get_user_idstring(realtask, "_setscene")
         self.taskname = rq.rqdata.get_task_name(realtask) + "_setscene"
         self.taskfile = rq.rqdata.get_task_file(realtask)
-        self.taskhash = rq.rqdata.get_task_hash(task)
+        self.taskhash = rq.rqdata.get_task_hash(realtask)
 
 class runQueueTaskStarted(runQueueEvent):
     """
-    Event notifing a task was started
+    Event notifying a task was started
     """
     def __init__(self, task, stats, rq, noexec=False):
         runQueueEvent.__init__(self, task, stats, rq)
@@ -1893,7 +2055,7 @@ class runQueueTaskStarted(runQueueEvent):
 
 class sceneQueueTaskStarted(sceneQueueEvent):
     """
-    Event notifing a setscene task was started
+    Event notifying a setscene task was started
     """
     def __init__(self, task, stats, rq, noexec=False):
         sceneQueueEvent.__init__(self, task, stats, rq)
@@ -1901,7 +2063,7 @@ class sceneQueueTaskStarted(sceneQueueEvent):
 
 class runQueueTaskFailed(runQueueEvent):
     """
-    Event notifing a task failed
+    Event notifying a task failed
     """
     def __init__(self, task, stats, exitcode, rq):
         runQueueEvent.__init__(self, task, stats, rq)
@@ -1909,25 +2071,33 @@ class runQueueTaskFailed(runQueueEvent):
 
 class sceneQueueTaskFailed(sceneQueueEvent):
     """
-    Event notifing a setscene task failed
+    Event notifying a setscene task failed
     """
     def __init__(self, task, stats, exitcode, rq):
         sceneQueueEvent.__init__(self, task, stats, rq)
         self.exitcode = exitcode
 
+class sceneQueueComplete(sceneQueueEvent):
+    """
+    Event when all the sceneQueue tasks are complete
+    """
+    def __init__(self, stats, rq):
+        self.stats = stats.copy()
+        bb.event.Event.__init__(self)
+
 class runQueueTaskCompleted(runQueueEvent):
     """
-    Event notifing a task completed
+    Event notifying a task completed
     """
 
 class sceneQueueTaskCompleted(sceneQueueEvent):
     """
-    Event notifing a setscene task completed
+    Event notifying a setscene task completed
     """
 
 class runQueueTaskSkipped(runQueueEvent):
     """
-    Event notifing a task was skipped
+    Event notifying a task was skipped
     """
     def __init__(self, task, stats, rq, reason):
         runQueueEvent.__init__(self, task, stats, rq)
@@ -1937,7 +2107,7 @@ class runQueuePipe():
     """
     Abstraction for a pipe between a worker thread and the server
     """
-    def __init__(self, pipein, pipeout, d, rq):
+    def __init__(self, pipein, pipeout, d, rq, rqexec):
         self.input = pipein
         if pipeout:
             pipeout.close()
@@ -1945,11 +2115,25 @@ class runQueuePipe():
         self.queue = ""
         self.d = d
         self.rq = rq
+        self.rqexec = rqexec
 
-    def setrunqueueexec(self, rq):
-        self.rq = rq
+    def setrunqueueexec(self, rqexec):
+        self.rqexec = rqexec
 
     def read(self):
+        for w in [self.rq.worker, self.rq.fakeworker]:
+            if not w:
+                continue
+            w.poll()
+            if w.returncode is not None and not self.rq.teardown:
+                name = None
+                if self.rq.worker and w.pid == self.rq.worker.pid:
+                    name = "Worker"
+                elif self.rq.fakeworker and w.pid == self.rq.fakeworker.pid:
+                    name = "Fakeroot"
+                bb.error("%s process (%s) exited unexpectedly (%s), shutting down..." % (name, w.pid, str(w.returncode)))
+                self.rq.finish_runqueue(True)
+
         start = len(self.queue)
         try:
             self.queue = self.queue + self.input.read(102400)
@@ -1962,15 +2146,21 @@ class runQueuePipe():
             found = False
             index = self.queue.find("</event>")
             while index != -1 and self.queue.startswith("<event>"):
-                event = pickle.loads(self.queue[7:index])
+                try:
+                    event = pickle.loads(self.queue[7:index])
+                except ValueError as e:
+                    bb.msg.fatal("RunQueue", "failed load pickle '%s': '%s'" % (e, self.queue[7:index]))
                 bb.event.fire_from_worker(event, self.d)
                 found = True
                 self.queue = self.queue[index+8:]
                 index = self.queue.find("</event>")
             index = self.queue.find("</exitcode>")
             while index != -1 and self.queue.startswith("<exitcode>"):
-                task, status = pickle.loads(self.queue[10:index])
-                self.rq.runqueue_process_waitpid(task, status)
+                try:
+                    task, status = pickle.loads(self.queue[10:index])
+                except ValueError as e:
+                    bb.msg.fatal("RunQueue", "failed load pickle '%s': '%s'" % (e, self.queue[10:index]))
+                self.rqexec.runqueue_process_waitpid(task, status)
                 found = True
                 self.queue = self.queue[index+11:]
                 index = self.queue.find("</exitcode>")

bitbake/lib/bb/server/process.py

@@ -38,14 +38,18 @@ from . import BitBakeBaseServer, BitBakeBaseServerConnection, BaseImplServer
 logger = logging.getLogger('BitBake')
 
 class ServerCommunicator():
-    def __init__(self, connection, event_handle):
+    def __init__(self, connection, event_handle, server):
         self.connection = connection
         self.event_handle = event_handle
+        self.server = server
 
     def runCommand(self, command):
         # @todo try/except
         self.connection.send(command)
 
+        if not self.server.is_alive():
+            raise SystemExit
+
         while True:
             # don't let the user ctrl-c while we're waiting for a response
             try:
@@ -80,15 +84,14 @@ class ProcessServer(Process, BaseImplServer):
 
     def __init__(self, command_channel, event_queue, featurelist):
         BaseImplServer.__init__(self)
-        Process.__init__(self, args=(featurelist))
+        Process.__init__(self)
         self.command_channel = command_channel
         self.event_queue = event_queue
         self.event = EventAdapter(event_queue)
         self.featurelist = featurelist
         self.quit = False
 
-        self.keep_running = Event()
-        self.keep_running.set()
+        self.quitin, self.quitout = Pipe()
         self.event_handle = multiprocessing.Value("i")
 
     def run(self):
@@ -96,26 +99,23 @@ class ProcessServer(Process, BaseImplServer):
             self.event_queue.put(event)
         self.event_handle.value = bb.event.register_UIHhandler(self)
 
-        # process any feature changes based on what UI requested
-        original_featureset = list(self.cooker.featureset)
-        while len(self.featurelist)> 0:
-            self.cooker.featureset.setFeature(self.featurelist.pop())
-        if (original_featureset != list(self.cooker.featureset)):
-            self.cooker.reset()
-
         bb.cooker.server_main(self.cooker, self.main)
 
     def main(self):
         # Ignore SIGINT within the server, as all SIGINT handling is done by
         # the UI and communicated to us
+        self.quitin.close()
         signal.signal(signal.SIGINT, signal.SIG_IGN)
-        while self.keep_running.is_set():
+        while not self.quit:
             try:
                 if self.command_channel.poll():
                     command = self.command_channel.recv()
                     self.runCommand(command)
+                if self.quitout.poll():
+                    self.quitout.recv()
+                    self.quit = True
 
-                self.idle_commands(.1, [self.event_queue._reader, self.command_channel])
+                self.idle_commands(.1, [self.event_queue._reader, self.command_channel, self.quitout])
             except Exception:
                 logger.exception('Running command %s', command)
 
@@ -123,7 +123,6 @@ class ProcessServer(Process, BaseImplServer):
         bb.event.unregister_UIHhandler(self.event_handle.value)
         self.command_channel.close()
         self.cooker.shutdown(True)
-        self.idle_commands(.1)
 
     def idle_commands(self, delay, fds = []):
         nextsleep = delay
@@ -133,8 +132,12 @@ class ProcessServer(Process, BaseImplServer):
                 retval = function(self, data, False)
                 if retval is False:
                     del self._idlefuns[function]
+                    nextsleep = None
                 elif retval is True:
                     nextsleep = None
+                elif isinstance(retval, float):
+                    if (retval < nextsleep):
+                        nextsleep = retval
                 elif nextsleep is None:
                     continue
                 else:
@@ -143,6 +146,8 @@ class ProcessServer(Process, BaseImplServer):
                 raise
             except Exception:
                 logger.exception('Running idle function')
+                del self._idlefuns[function]
+                self.quit = True
 
         if nextsleep is not None:
             select.select(fds,[],[],nextsleep)
@@ -154,16 +159,21 @@ class ProcessServer(Process, BaseImplServer):
         self.command_channel.send(self.cooker.command.runCommand(command))
 
     def stop(self):
-        self.keep_running.clear()
+        self.quitin.send("quit")
+        self.quitin.close()
 
 class BitBakeProcessServerConnection(BitBakeBaseServerConnection):
     def __init__(self, serverImpl, ui_channel, event_queue):
         self.procserver = serverImpl
         self.ui_channel = ui_channel
         self.event_queue = event_queue
-        self.connection = ServerCommunicator(self.ui_channel, self.procserver.event_handle)
+        self.connection = ServerCommunicator(self.ui_channel, self.procserver.event_handle, self.procserver)
         self.events = self.event_queue
 
+    def sigterm_terminate(self):
+        bb.error("UI received SIGTERM")
+        self.terminate()
+
     def terminate(self):
         def flushevents():
             while True:
@@ -183,17 +193,33 @@ class BitBakeProcessServerConnection(BitBakeBaseServerConnection):
 
         self.ui_channel.close()
         self.event_queue.close()
+        self.event_queue.setexit()
 
 # Wrap Queue to provide API which isn't server implementation specific
 class ProcessEventQueue(multiprocessing.queues.Queue):
+    def __init__(self, maxsize):
+        multiprocessing.queues.Queue.__init__(self, maxsize)
+        self.exit = False
+
+    def setexit(self):
+        self.exit = True
+
     def waitEvent(self, timeout):
+        if self.exit:
+            sys.exit(1)
         try:
+            if not self.server.is_alive():
+                self.setexit()
+                return None
             return self.get(True, timeout)
         except Empty:
             return None
 
     def getEvent(self):
         try:
+            if not self.server.is_alive():
+                self.setexit()
+                return None
             return self.get(False)
         except Empty:
             return None
@@ -207,17 +233,20 @@ class BitBakeServer(BitBakeBaseServer):
         #
         self.ui_channel, self.server_channel = Pipe()
         self.event_queue = ProcessEventQueue(0)
-        manager = Manager()
-        self.featurelist = manager.list()
-        self.serverImpl = ProcessServer(self.server_channel, self.event_queue, self.featurelist)
+        self.serverImpl = ProcessServer(self.server_channel, self.event_queue, None)
+        self.event_queue.server = self.serverImpl
 
     def detach(self):
         self.serverImpl.start()
         return
 
     def establishConnection(self, featureset):
-        for f in featureset:
-            self.featurelist.append(f)
+
         self.connection = BitBakeProcessServerConnection(self.serverImpl, self.ui_channel, self.event_queue)
-        signal.signal(signal.SIGTERM, lambda i, s: self.connection.terminate())
+
+        _, error = self.connection.connection.runCommand(["setFeatures", featureset])
+        if error:
+            logger.error("Unable to set the cooker to the correct featureset: %s" % error)
+            raise BaseException(error)
+        signal.signal(signal.SIGTERM, lambda i, s: self.connection.sigterm_terminate())
         return self.connection

bitbake/lib/bb/server/xmlrpc.py

@@ -80,7 +80,7 @@ class BBTransport(xmlrpclib.Transport):
 
 def _create_server(host, port, timeout = 60):
     t = BBTransport(timeout)
-    s = xmlrpclib.Server("http://%s:%d/" % (host, port), transport=t, allow_none=True)
+    s = xmlrpclib.ServerProxy("http://%s:%d/" % (host, port), transport=t, allow_none=True)
     return s, t
 
 class BitBakeServerCommands():
@@ -89,7 +89,7 @@ class BitBakeServerCommands():
         self.server = server
         self.has_client = False
 
-    def registerEventHandler(self, host, port, featureset = []):
+    def registerEventHandler(self, host, port):
         """
         Register a remote UI Event Handler
         """
@@ -99,13 +99,6 @@ class BitBakeServerCommands():
         if (self.cooker.state in [bb.cooker.state.parsing, bb.cooker.state.running]):
             return None
 
-        original_featureset = list(self.cooker.featureset)
-        for f in featureset:
-            self.cooker.featureset.setFeature(f)
-
-        if (original_featureset != list(self.cooker.featureset)):
-            self.cooker.reset()
-
         self.event_handle = bb.event.register_UIHhandler(s)
         return self.event_handle
 
@@ -248,6 +241,9 @@ class XMLRPCServer(SimpleXMLRPCServer, BaseImplServer):
                         del self._idlefuns[function]
                     elif retval is True:
                         nextsleep = 0
+                    elif isinstance(retval, float):
+                        if (retval < nextsleep):
+                            nextsleep = retval
                     else:
                         fds = fds + retval
                 except SystemExit:
@@ -260,9 +256,13 @@ class XMLRPCServer(SimpleXMLRPCServer, BaseImplServer):
             socktimeout = self.socket.gettimeout() or nextsleep
             socktimeout = min(socktimeout, nextsleep)
             # Mirror what BaseServer handle_request would do
-            fd_sets = select.select(fds, [], [], socktimeout)
-            if fd_sets[0] and self in fd_sets[0]:
-                self._handle_request_noblock()
+            try:
+                fd_sets = select.select(fds, [], [], socktimeout)
+                if fd_sets[0] and self in fd_sets[0]:
+                    self._handle_request_noblock()
+            except IOError:
+                # we ignore interrupted calls
+                pass
 
         # Tell idle functions we're exiting
         for function, data in self._idlefuns.items():
@@ -284,18 +284,27 @@ class BitBakeXMLRPCServerConnection(BitBakeBaseServerConnection):
         self.observer_only = observer_only
         self.featureset = featureset
 
-    def connect(self):
-        if not self.observer_only:
-            token = self.connection.addClient()
-        else:
-            token = "observer"
+    def connect(self, token = None):
+        if token is None:
+            if self.observer_only:
+                token = "observer"
+            else:
+                token = self.connection.addClient()
+
         if token is None:
             return None
+
         self.transport.set_connection_token(token)
 
-        self.events = uievent.BBUIEventQueue(self.connection, self.clientinfo, self.featureset)
+        self.events = uievent.BBUIEventQueue(self.connection, self.clientinfo)
         for event in bb.event.ui_queue:
             self.events.queue_event(event)
+
+        _, error = self.connection.runCommand(["setFeatures", self.featureset])
+        if error:
+            # no need to log it here, the error shall be sent to the client
+            raise BaseException(error)
+
         return self
 
     def removeClient(self):
@@ -333,7 +342,9 @@ class BitBakeServer(BitBakeBaseServer):
 
 class BitBakeXMLRPCClient(BitBakeBaseServer):
 
-    def __init__(self, observer_only = False):
+    def __init__(self, observer_only = False, token = None):
+        self.token = token
+
         self.observer_only = observer_only
         # if we need extra caches, just tell the server to load them all
         pass
@@ -341,37 +352,14 @@ class BitBakeXMLRPCClient(BitBakeBaseServer):
     def saveConnectionDetails(self, remote):
         self.remote = remote
 
-    def saveConnectionConfigParams(self, configParams):
-        self.configParams = configParams
-
     def establishConnection(self, featureset):
         # The format of "remote" must be "server:port"
         try:
             [host, port] = self.remote.split(":")
             port = int(port)
         except Exception as e:
-            bb.fatal("Failed to read remote definition (%s)" % str(e))
-
-        # use automatic port if port set to -1, meaning read it from
-        # the bitbake.lock file
-        if port == -1:
-            lock_location = "%s/bitbake.lock" % self.configParams.environment.get('BUILDDIR')
-            lock = bb.utils.lockfile(lock_location, False, False)
-            if lock:
-                # This means there is no server running which we can
-                # connect to on the local system.
-                bb.utils.unlockfile(lock)
-                return None
-
-            try:
-                lf = open(lock_location, 'r')
-                remotedef = lf.readline()
-                [host, port] = remotedef.split(":")
-                port = int(port)
-                lf.close()
-                self.remote = remotedef
-            except Exception as e:
-                bb.fatal("Failed to read bitbake.lock (%s)" % str(e))
+            bb.warn("Failed to read remote definition (%s)" % str(e))
+            raise e
 
         # We need our IP for the server connection. We get the IP
         # by trying to connect with the server
@@ -381,13 +369,15 @@ class BitBakeXMLRPCClient(BitBakeBaseServer):
             ip = s.getsockname()[0]
             s.close()
         except Exception as e:
-            bb.fatal("Could not create socket for %s:%s (%s)" % (host, port, str(e)))
+            bb.warn("Could not create socket for %s:%s (%s)" % (host, port, str(e)))
+            raise e
         try:
             self.serverImpl = XMLRPCProxyServer(host, port)
             self.connection = BitBakeXMLRPCServerConnection(self.serverImpl, (ip, 0), self.observer_only, featureset)
-            return self.connection.connect()
+            return self.connection.connect(self.token)
         except Exception as e:
-            bb.fatal("Could not connect to server at %s:%s (%s)" % (host, port, str(e)))
+            bb.warn("Could not connect to server at %s:%s (%s)" % (host, port, str(e)))
+            raise e
 
     def endSession(self):
         self.connection.removeClient()

bitbake/lib/bb/siggen.py

@@ -34,7 +34,9 @@ class SignatureGenerator(object):
     name = "noop"
 
     def __init__(self, data):
-        return
+        self.taskhash = {}
+        self.runtaskdeps = {}
+        self.file_checksum_values = {}
 
     def finalise(self, fn, d, varient):
         return
@@ -42,7 +44,7 @@ class SignatureGenerator(object):
     def get_taskhash(self, fn, task, deps, dataCache):
         return "0"
 
-    def set_taskdata(self, hashes, deps):
+    def set_taskdata(self, hashes, deps, checksum):
         return
 
     def stampfile(self, stampbase, file_name, taskname, extrainfo):
@@ -57,6 +59,15 @@ class SignatureGenerator(object):
     def invalidate_task(self, task, d, fn):
         bb.build.del_stamp(task, d, fn)
 
+    def dump_sigs(self, dataCache, options):
+        return
+
+    def get_taskdata(self):
+       return (self.runtaskdeps, self.taskhash, self.file_checksum_values)
+
+    def set_taskdata(self, data):
+        self.runtaskdeps, self.taskhash, self.file_checksum_values = data
+
 
 class SignatureGeneratorBasic(SignatureGenerator):
     """
@@ -181,22 +192,19 @@ class SignatureGeneratorBasic(SignatureGenerator):
             checksums = bb.fetch2.get_file_checksums(dataCache.file_checksums[fn][task], recipename)
             for (f,cs) in checksums:
                 self.file_checksum_values[k][f] = cs
-                data = data + cs
+                if cs:
+                    data = data + cs
 
         taint = self.read_taint(fn, task, dataCache.stamp[fn])
         if taint:
             data = data + taint
+            logger.warn("%s is tainted from a forced run" % k)
 
         h = hashlib.md5(data).hexdigest()
         self.taskhash[k] = h
         #d.setVar("BB_TASKHASH_task-%s" % task, taskhash[task])
         return h
 
-    def set_taskdata(self, hashes, deps, checksums):
-        self.runtaskdeps = deps
-        self.taskhash = hashes
-        self.file_checksum_values = checksums
-
     def dump_sigtask(self, fn, task, stampbase, runtime):
         k = fn + "." + task
         if runtime == "customfile":
@@ -238,7 +246,6 @@ class SignatureGeneratorBasic(SignatureGenerator):
             with os.fdopen(fd, "wb") as stream:
                 p = pickle.dump(data, stream, -1)
                 stream.flush()
-                os.fsync(fd)
             os.chmod(tmpfile, 0664)
             os.rename(tmpfile, sigfile)
         except (OSError, IOError) as err:
@@ -248,7 +255,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
                 pass
             raise err
 
-    def dump_sigs(self, dataCache):
+    def dump_sigs(self, dataCache, options):
         for fn in self.taskdeps:
             for task in self.taskdeps[fn]:
                 k = fn + "." + task
@@ -290,10 +297,9 @@ def dump_this_task(outfile, d):
     bb.parse.siggen.dump_sigtask(fn, task, outfile, "customfile")
 
 def clean_basepath(a):
+    b = a.rsplit("/", 2)[1] + a.rsplit("/", 2)[2]
     if a.startswith("virtual:"):
-        b = a.rsplit(":", 1)[0] + ":" + a.rsplit("/", 1)[1]
-    else:
-        b = a.rsplit("/", 1)[1]
+        b = b + ":" + a.rsplit(":", 1)[0]
     return b
 
 def clean_basepaths(a):
@@ -318,8 +324,8 @@ def compare_sigfiles(a, b, recursecb = None):
         for i in common:
             if a[i] != b[i] and i not in whitelist:
                 changed.add(i)
-        added = sa - sb
-        removed = sb - sa
+        added = sb - sa
+        removed = sa - sb
         return changed, added, removed
 
     def file_checksums_diff(a, b):
@@ -411,28 +417,30 @@ def compare_sigfiles(a, b, recursecb = None):
                 bdep_found = False
                 if removed:
                     for bdep in removed:
-                        if a[dep] == b[bdep]:
+                        if b[dep] == a[bdep]:
                             #output.append("Dependency on task %s was replaced by %s with same hash" % (dep, bdep))
                             bdep_found = True
                 if not bdep_found:
-                    output.append("Dependency on task %s was added with hash %s" % (clean_basepath(dep), a[dep]))
+                    output.append("Dependency on task %s was added with hash %s" % (clean_basepath(dep), b[dep]))
         if removed:
             for dep in removed:
                 adep_found = False
                 if added:
                     for adep in added:
-                        if a[adep] == b[dep]:
+                        if b[adep] == a[dep]:
                             #output.append("Dependency on task %s was replaced by %s with same hash" % (adep, dep))
                             adep_found = True
                 if not adep_found:
-                    output.append("Dependency on task %s was removed with hash %s" % (clean_basepath(dep), b[dep]))
+                    output.append("Dependency on task %s was removed with hash %s" % (clean_basepath(dep), a[dep]))
         if changed:
             for dep in changed:
                 output.append("Hash for dependent task %s changed from %s to %s" % (clean_basepath(dep), a[dep], b[dep]))
                 if callable(recursecb):
+                    # If a dependent hash changed, might as well print the line above and then defer to the changes in 
+                    # that hash since in all likelyhood, they're the same changes this task also saw.
                     recout = recursecb(dep, a[dep], b[dep])
                     if recout:
-                        output.extend(recout)
+                        output = [output[-1]] + recout
 
     a_taint = a_data.get('taint', None)
     b_taint = b_data.get('taint', None)

bitbake/lib/bb/taskdata.py

@@ -207,23 +207,29 @@ class TaskData:
         if not fnid in self.depids:
             dependids = {}
             for depend in dataCache.deps[fn]:
-                logger.debug(2, "Added dependency %s for %s", depend, fn)
                 dependids[self.getbuild_id(depend)] = None
             self.depids[fnid] = dependids.keys()
+            logger.debug(2, "Added dependencies %s for %s", str(dataCache.deps[fn]), fn)
 
         # Work out runtime dependencies
         if not fnid in self.rdepids:
             rdependids = {}
             rdepends = dataCache.rundeps[fn]
             rrecs = dataCache.runrecs[fn]
+            rdependlist = []
+            rreclist = []
             for package in rdepends:
                 for rdepend in rdepends[package]:
-                    logger.debug(2, "Added runtime dependency %s for %s", rdepend, fn)
+                    rdependlist.append(rdepend)
                     rdependids[self.getrun_id(rdepend)] = None
             for package in rrecs:
                 for rdepend in rrecs[package]:
-                    logger.debug(2, "Added runtime recommendation %s for %s", rdepend, fn)
+                    rreclist.append(rdepend)
                     rdependids[self.getrun_id(rdepend)] = None
+            if rdependlist:
+                logger.debug(2, "Added runtime dependencies %s for %s", str(rdependlist), fn)
+            if rreclist:
+                logger.debug(2, "Added runtime recommendations %s for %s", str(rreclist), fn)
             self.rdepids[fnid] = rdependids.keys()
 
         for dep in self.depids[fnid]:

bitbake/lib/bb/tests/codeparser.py

@@ -236,7 +236,8 @@ be. These unit tests are testing snippets."""
             self.d.setVar("do_something", "echo 'hi mom! ${FOO}'")
             self.d.setVarFlag("do_something", etype, True)
             self.parseExpression("bb.build.exec_func('do_something', d)")
-            self.assertReferences(set(["do_something"]))
+            self.assertReferences(set([]))
+            self.assertExecs(set(["do_something"]))
 
     def test_function_reference(self):
         self.context["testfunc"] = lambda msg: bb.msg.note(1, None, msg)

bitbake/lib/bb/tests/data.py

@@ -23,6 +23,7 @@
 import unittest
 import bb
 import bb.data
+import bb.parse
 
 class DataExpansions(unittest.TestCase):
     def setUp(self):
@@ -212,6 +213,66 @@ class TestConcat(unittest.TestCase):
         self.d.appendVar("TEST", ":${BAR}")
         self.assertEqual(self.d.getVar("TEST", True), "foo:val:val2:bar")
 
+class TestConcatOverride(unittest.TestCase):
+    def setUp(self):
+        self.d = bb.data.init()
+        self.d.setVar("FOO", "foo")
+        self.d.setVar("VAL", "val")
+        self.d.setVar("BAR", "bar")
+
+    def test_prepend(self):
+        self.d.setVar("TEST", "${VAL}")
+        self.d.setVar("TEST_prepend", "${FOO}:")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "foo:val")
+
+    def test_append(self):
+        self.d.setVar("TEST", "${VAL}")
+        self.d.setVar("TEST_append", ":${BAR}")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "val:bar")
+
+    def test_multiple_append(self):
+        self.d.setVar("TEST", "${VAL}")
+        self.d.setVar("TEST_prepend", "${FOO}:")
+        self.d.setVar("TEST_append", ":val2")
+        self.d.setVar("TEST_append", ":${BAR}")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "foo:val:val2:bar")
+
+    def test_remove(self):
+        self.d.setVar("TEST", "${VAL} ${BAR}")
+        self.d.setVar("TEST_remove", "val")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "bar")
+
+    def test_doubleref_remove(self):
+        self.d.setVar("TEST", "${VAL} ${BAR}")
+        self.d.setVar("TEST_remove", "val")
+        self.d.setVar("TEST_TEST", "${TEST} ${TEST}")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST_TEST", True), "bar bar")
+
+    def test_empty_remove(self):
+        self.d.setVar("TEST", "")
+        self.d.setVar("TEST_remove", "val")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "")
+
+    def test_remove_expansion(self):
+        self.d.setVar("BAR", "Z")
+        self.d.setVar("TEST", "${BAR}/X Y")
+        self.d.setVar("TEST_remove", "${BAR}/X")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "Y")
+
+    def test_remove_expansion_items(self):
+        self.d.setVar("TEST", "A B C D")
+        self.d.setVar("BAR", "B D")
+        self.d.setVar("TEST_remove", "${BAR}")
+        bb.data.update_data(self.d)
+        self.assertEqual(self.d.getVar("TEST", True), "A C")
+
 class TestOverrides(unittest.TestCase):
     def setUp(self):
         self.d = bb.data.init()
@@ -252,3 +313,39 @@ class TestFlags(unittest.TestCase):
         self.assertEqual(self.d.getVarFlag("foo", "flag2"), None)
 
 
+class Contains(unittest.TestCase):
+    def setUp(self):
+        self.d = bb.data.init()
+        self.d.setVar("SOMEFLAG", "a b c")
+
+    def test_contains(self):
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "a", True, False, self.d))
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "b", True, False, self.d))
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "c", True, False, self.d))
+
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "a b", True, False, self.d))
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "b c", True, False, self.d))
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "c a", True, False, self.d))
+
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "a b c", True, False, self.d))
+        self.assertTrue(bb.utils.contains("SOMEFLAG", "c b a", True, False, self.d))
+
+        self.assertFalse(bb.utils.contains("SOMEFLAG", "x", True, False, self.d))
+        self.assertFalse(bb.utils.contains("SOMEFLAG", "a x", True, False, self.d))
+        self.assertFalse(bb.utils.contains("SOMEFLAG", "x c b", True, False, self.d))
+        self.assertFalse(bb.utils.contains("SOMEFLAG", "x c b a", True, False, self.d))
+
+    def test_contains_any(self):
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "a", True, False, self.d))
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "b", True, False, self.d))
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "c", True, False, self.d))
+
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "a b", True, False, self.d))
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "b c", True, False, self.d))
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "c a", True, False, self.d))
+
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "a x", True, False, self.d))
+        self.assertTrue(bb.utils.contains_any("SOMEFLAG", "x c", True, False, self.d))
+
+        self.assertFalse(bb.utils.contains_any("SOMEFLAG", "x", True, False, self.d))
+        self.assertFalse(bb.utils.contains_any("SOMEFLAG", "x y z", True, False, self.d))

bitbake/lib/bb/tests/fetch.py

@@ -39,6 +39,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': False
         },
         "http://www.google.com/index.html;param1=value1" : {
@@ -54,6 +55,41 @@ class URITest(unittest.TestCase):
             'params': {
                 'param1': 'value1'
             },
+            'query': {},
+            'relative': False
+        },
+        "http://www.example.org/index.html?param1=value1" : {
+            'uri': 'http://www.example.org/index.html?param1=value1',
+            'scheme': 'http',
+            'hostname': 'www.example.org',
+            'port': None,
+            'hostport': 'www.example.org',
+            'path': '/index.html',
+            'userinfo': '',
+            'username': '',
+            'password': '',
+            'params': {},
+            'query': {
+                'param1': 'value1'
+            },
+            'relative': False
+        },
+        "http://www.example.org/index.html?qparam1=qvalue1;param2=value2" : {
+            'uri': 'http://www.example.org/index.html?qparam1=qvalue1;param2=value2',
+            'scheme': 'http',
+            'hostname': 'www.example.org',
+            'port': None,
+            'hostport': 'www.example.org',
+            'path': '/index.html',
+            'userinfo': '',
+            'username': '',
+            'password': '',
+            'params': {
+                'param2': 'value2'
+            },
+            'query': {
+                'qparam1': 'qvalue1'
+            },
             'relative': False
         },
         "http://www.example.com:8080/index.html" : {
@@ -67,6 +103,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': False
         },
         "cvs://anoncvs@cvs.handhelds.org/cvs;module=familiar/dist/ipkg" : {
@@ -82,6 +119,7 @@ class URITest(unittest.TestCase):
             'params': {
                 'module': 'familiar/dist/ipkg'
             },
+            'query': {},
             'relative': False
         },
         "cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;tag=V0-99-81;module=familiar/dist/ipkg": {
@@ -98,6 +136,7 @@ class URITest(unittest.TestCase):
                 'tag': 'V0-99-81',
                 'module': 'familiar/dist/ipkg'
             },
+            'query': {},
             'relative': False
         },
         "file://example.diff": { # NOTE: Not RFC compliant!
@@ -111,6 +150,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': True
         },
         "file:example.diff": { # NOTE: RFC compliant version of the former
@@ -125,6 +165,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': True
         },
         "file:///tmp/example.diff": {
@@ -139,6 +180,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': False
         },
         "git:///path/example.git": {
@@ -153,6 +195,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': False
         },
         "git:path/example.git": {
@@ -167,6 +210,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': True
         },
         "git://example.net/path/example.git": {
@@ -181,6 +225,7 @@ class URITest(unittest.TestCase):
             'username': '',
             'password': '',
             'params': {},
+            'query': {},
             'relative': False
         }
     }
@@ -229,6 +274,20 @@ class URITest(unittest.TestCase):
             self.assertEqual(uri.username, test['username'])
             self.assertEqual(uri.password, test['password'])
 
+            # make sure changing the values doesn't do anything unexpected
+            uri.username = 'changeme'
+            self.assertEqual(uri.username, 'changeme')
+            self.assertEqual(uri.password, test['password'])
+            uri.password = 'insecure'
+            self.assertEqual(uri.username, 'changeme')
+            self.assertEqual(uri.password, 'insecure')
+
+            # reset back after our trickery
+            uri.userinfo = test['userinfo']
+            self.assertEqual(uri.userinfo, test['userinfo'])
+            self.assertEqual(uri.username, test['username'])
+            self.assertEqual(uri.password, test['password'])
+
             uri.hostname = test['hostname']
             self.assertEqual(uri.hostname, test['hostname'])
             self.assertEqual(uri.hostport, test['hostname'])
@@ -243,7 +302,8 @@ class URITest(unittest.TestCase):
             uri.params = test['params']
             self.assertEqual(uri.params, test['params'])
 
-            self.assertEqual(str(uri)+str(uri.relative), str(test['uri'])+str(test['relative']))
+            uri.query = test['query']
+            self.assertEqual(uri.query, test['query'])
 
             self.assertEqual(str(uri), test['uri'])
 
@@ -330,6 +390,68 @@ class MirrorUriTest(FetcherTest):
         uris, uds = bb.fetch2.build_mirroruris(fetcher, mirrors, self.d)
         self.assertEqual(uris, ['file:///someotherpath/downloads/bitbake-1.0.tar.gz'])
 
+
+class FetcherLocalTest(FetcherTest):
+    def setUp(self):
+        def touch(fn):
+            with file(fn, 'a'):
+                os.utime(fn, None)
+
+        super(FetcherLocalTest, self).setUp()
+        self.localsrcdir = os.path.join(self.tempdir, 'localsrc')
+        os.makedirs(self.localsrcdir)
+        touch(os.path.join(self.localsrcdir, 'a'))
+        touch(os.path.join(self.localsrcdir, 'b'))
+        os.makedirs(os.path.join(self.localsrcdir, 'dir'))
+        touch(os.path.join(self.localsrcdir, 'dir', 'c'))
+        touch(os.path.join(self.localsrcdir, 'dir', 'd'))
+        os.makedirs(os.path.join(self.localsrcdir, 'dir', 'subdir'))
+        touch(os.path.join(self.localsrcdir, 'dir', 'subdir', 'e'))
+        self.d.setVar("FILESPATH", self.localsrcdir)
+
+    def fetchUnpack(self, uris):
+        fetcher = bb.fetch.Fetch(uris, self.d)
+        fetcher.download()
+        fetcher.unpack(self.unpackdir)
+        flst = []
+        for root, dirs, files in os.walk(self.unpackdir):
+            for f in files:
+                flst.append(os.path.relpath(os.path.join(root, f), self.unpackdir))
+        flst.sort()
+        return flst
+
+    def test_local(self):
+        tree = self.fetchUnpack(['file://a', 'file://dir/c'])
+        self.assertEqual(tree, ['a', 'dir/c'])
+
+    def test_local_wildcard(self):
+        tree = self.fetchUnpack(['file://a', 'file://dir/*'])
+        # FIXME: this is broken - it should return ['a', 'dir/c', 'dir/d', 'dir/subdir/e']
+        # see https://bugzilla.yoctoproject.org/show_bug.cgi?id=6128
+        self.assertEqual(tree, ['a', 'b', 'dir/c', 'dir/d', 'dir/subdir/e'])
+
+    def test_local_dir(self):
+        tree = self.fetchUnpack(['file://a', 'file://dir'])
+        self.assertEqual(tree, ['a', 'dir/c', 'dir/d', 'dir/subdir/e'])
+
+    def test_local_subdir(self):
+        tree = self.fetchUnpack(['file://dir/subdir'])
+        # FIXME: this is broken - it should return ['dir/subdir/e']
+        # see https://bugzilla.yoctoproject.org/show_bug.cgi?id=6129
+        self.assertEqual(tree, ['subdir/e'])
+
+    def test_local_subdir_file(self):
+        tree = self.fetchUnpack(['file://dir/subdir/e'])
+        self.assertEqual(tree, ['dir/subdir/e'])
+
+    def test_local_subdirparam(self):
+        tree = self.fetchUnpack(['file://a;subdir=bar'])
+        self.assertEqual(tree, ['bar/a'])
+
+    def test_local_deepsubdirparam(self):
+        tree = self.fetchUnpack(['file://dir/subdir/e;subdir=bar'])
+        self.assertEqual(tree, ['bar/dir/subdir/e'])
+
 class FetcherNetworkTest(FetcherTest):
 
     if os.environ.get("BB_SKIP_NETTESTS") == "yes":
@@ -382,6 +504,21 @@ class FetcherNetworkTest(FetcherTest):
             url1 = url2 = "git://git.openembedded.org/bitbake"
             self.gitfetcher(url1, url2)
 
+        def test_gitfetch_goodsrcrev(self):
+            # SRCREV is set but matches rev= parameter
+            url1 = url2 = "git://git.openembedded.org/bitbake;rev=270a05b0b4ba0959fe0624d2a4885d7b70426da5"
+            self.gitfetcher(url1, url2)
+
+        def test_gitfetch_badsrcrev(self):
+            # SRCREV is set but does not match rev= parameter
+            url1 = url2 = "git://git.openembedded.org/bitbake;rev=dead05b0b4ba0959fe0624d2a4885d7b70426da5"
+            self.assertRaises(bb.fetch.FetchError, self.gitfetcher, url1, url2)
+
+        def test_gitfetch_tagandrev(self):
+            # SRCREV is set but does not match rev= parameter
+            url1 = url2 = "git://git.openembedded.org/bitbake;rev=270a05b0b4ba0959fe0624d2a4885d7b70426da5;tag=270a05b0b4ba0959fe0624d2a4885d7b70426da5"
+            self.assertRaises(bb.fetch.FetchError, self.gitfetcher, url1, url2)
+
         def test_gitfetch_premirror(self):
             url1 = "git://git.openembedded.org/bitbake"
             url2 = "git://someserver.org/bitbake"
@@ -402,12 +539,20 @@ class FetcherNetworkTest(FetcherTest):
             self.d.setVar("PREMIRRORS", "%s git://%s;protocol=file \n" % (dummyurl, self.sourcedir))
             self.gitfetcher(dummyurl, dummyurl)
 
+        def test_git_submodule(self):
+            fetcher = bb.fetch.Fetch(["gitsm://git.yoctoproject.org/git-submodule-test;rev=f12e57f2edf0aa534cf1616fa983d165a92b0842"], self.d)
+            fetcher.download()
+            # Previous cwd has been deleted
+            os.chdir(os.path.dirname(self.unpackdir))
+            fetcher.unpack(self.unpackdir)
+
 class URLHandle(unittest.TestCase):
 
     datatable = {
        "http://www.google.com/index.html" : ('http', 'www.google.com', '/index.html', '', '', {}),
        "cvs://anoncvs@cvs.handhelds.org/cvs;module=familiar/dist/ipkg" : ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', '', {'module': 'familiar/dist/ipkg'}),
-       "cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;tag=V0-99-81;module=familiar/dist/ipkg" : ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', 'anonymous', {'tag': 'V0-99-81', 'module': 'familiar/dist/ipkg'})
+       "cvs://anoncvs:anonymous@cvs.handhelds.org/cvs;tag=V0-99-81;module=familiar/dist/ipkg" : ('cvs', 'cvs.handhelds.org', '/cvs', 'anoncvs', 'anonymous', {'tag': 'V0-99-81', 'module': 'familiar/dist/ipkg'}),
+       "git://git.openembedded.org/bitbake;branch=@foo" : ('git', 'git.openembedded.org', '/bitbake', '', '', {'branch': '@foo'})
     }
 
     def test_decodeurl(self):

bitbake/lib/bb/tests/utils.py

@@ -21,6 +21,7 @@
 
 import unittest
 import bb
+import os
 
 class VerCmpString(unittest.TestCase):
 
@@ -51,3 +52,52 @@ class VerCmpString(unittest.TestCase):
         result = bb.utils.explode_dep_versions2("foo ( =1.10 )")
         self.assertEqual(result, correctresult)
 
+    def test_vercmp_string_op(self):
+        compareops = [('1', '1', '=', True),
+                      ('1', '1', '==', True),
+                      ('1', '1', '!=', False),
+                      ('1', '1', '>', False),
+                      ('1', '1', '<', False),
+                      ('1', '1', '>=', True),
+                      ('1', '1', '<=', True),
+                      ('1', '0', '=', False),
+                      ('1', '0', '==', False),
+                      ('1', '0', '!=', True),
+                      ('1', '0', '>', True),
+                      ('1', '0', '<', False),
+                      ('1', '0', '>>', True),
+                      ('1', '0', '<<', False),
+                      ('1', '0', '>=', True),
+                      ('1', '0', '<=', False),
+                      ('0', '1', '=', False),
+                      ('0', '1', '==', False),
+                      ('0', '1', '!=', True),
+                      ('0', '1', '>', False),
+                      ('0', '1', '<', True),
+                      ('0', '1', '>>', False),
+                      ('0', '1', '<<', True),
+                      ('0', '1', '>=', False),
+                      ('0', '1', '<=', True)]
+
+        for arg1, arg2, op, correctresult in compareops:
+            result = bb.utils.vercmp_string_op(arg1, arg2, op)
+            self.assertEqual(result, correctresult, 'vercmp_string_op("%s", "%s", "%s") != %s' % (arg1, arg2, op, correctresult))
+
+        # Check that clearly invalid operator raises an exception
+        self.assertRaises(bb.utils.VersionStringException, bb.utils.vercmp_string_op, '0', '0', '$')
+
+
+class Path(unittest.TestCase):
+    def test_unsafe_delete_path(self):
+        checkitems = [('/', True),
+                      ('//', True),
+                      ('///', True),
+                      (os.getcwd().count(os.sep) * ('..' + os.sep), True),
+                      (os.environ.get('HOME', '/home/test'), True),
+                      ('/home/someone', True),
+                      ('/home/other/', True),
+                      ('/home/other/subdir', False),
+                      ('', False)]
+        for arg1, correctresult in checkitems:
+            result = bb.utils._check_unsafe_delete_path(arg1)
+            self.assertEqual(result, correctresult, '_check_unsafe_delete_path("%s") != %s' % (arg1, correctresult))

bitbake/lib/bb/tinfoil.py

@@ -25,12 +25,12 @@ import bb.cache
 import bb.cooker
 import bb.providers
 import bb.utils
-from bb.cooker import state, BBCooker
+from bb.cooker import state, BBCooker, CookerFeatures
 from bb.cookerdata import CookerConfiguration, ConfigParameters
 import bb.fetch2
 
 class Tinfoil:
-    def __init__(self, output=sys.stdout):
+    def __init__(self, output=sys.stdout, tracking=False):
         # Needed to avoid deprecation warnings with python 2.6
         warnings.filterwarnings("ignore", category=DeprecationWarning)
 
@@ -48,7 +48,10 @@ class Tinfoil:
         configparams = TinfoilConfigParameters(parse_only=True)
         self.config.setConfigParameters(configparams)
         self.config.setServerRegIdleCallback(self.register_idle_function)
-        self.cooker = BBCooker(self.config)
+        features = []
+        if tracking:
+            features.append(CookerFeatures.BASEDATASTORE_TRACKING)
+        self.cooker = BBCooker(self.config, features)
         self.config_data = self.cooker.data
         bb.providers.logger.setLevel(logging.ERROR)
         self.cooker_data = None
@@ -81,6 +84,11 @@ class Tinfoil:
             else:
                 self.parseRecipes()
 
+    def shutdown(self):
+        self.cooker.shutdown(force=True)
+        self.cooker.post_serve()
+        self.cooker.unlockBitbake()
+
 class TinfoilConfigParameters(ConfigParameters):
 
     def __init__(self, **options):

bitbake/lib/bb/ui/crumbs/builder.py

@@ -227,14 +227,20 @@ class Configuration:
             handler.set_var_in_file("DEPENDS", self.selected_recipes, "local.conf")
             handler.set_var_in_file("IMAGE_INSTALL", self.user_selected_packages, "local.conf")
         # proxy
-        handler.set_var_in_file("enable_proxy", self.enable_proxy, "local.conf")
-        handler.set_var_in_file("use_same_proxy", self.same_proxy, "local.conf")
-        handler.set_var_in_file("http_proxy", self.combine_proxy("http"), "local.conf")
-        handler.set_var_in_file("https_proxy", self.combine_proxy("https"), "local.conf")
-        handler.set_var_in_file("ftp_proxy", self.combine_proxy("ftp"), "local.conf")
-        handler.set_var_in_file("all_proxy", self.combine_proxy("socks"), "local.conf")
-        handler.set_var_in_file("CVS_PROXY_HOST", self.combine_host_only("cvs"), "local.conf")
-        handler.set_var_in_file("CVS_PROXY_PORT", self.combine_port_only("cvs"), "local.conf")
+        if self.enable_proxy == True:
+            handler.set_var_in_file("http_proxy", self.combine_proxy("http"), "local.conf")
+            handler.set_var_in_file("https_proxy", self.combine_proxy("https"), "local.conf")
+            handler.set_var_in_file("ftp_proxy", self.combine_proxy("ftp"), "local.conf")
+            handler.set_var_in_file("all_proxy", self.combine_proxy("socks"), "local.conf")
+            handler.set_var_in_file("CVS_PROXY_HOST", self.combine_host_only("cvs"), "local.conf")
+            handler.set_var_in_file("CVS_PROXY_PORT", self.combine_port_only("cvs"), "local.conf")
+        else:
+            handler.set_var_in_file("http_proxy", "", "local.conf")
+            handler.set_var_in_file("https_proxy", "", "local.conf")
+            handler.set_var_in_file("ftp_proxy", "", "local.conf")
+            handler.set_var_in_file("all_proxy", "", "local.conf")
+            handler.set_var_in_file("CVS_PROXY_HOST", "", "local.conf")
+            handler.set_var_in_file("CVS_PROXY_PORT", "", "local.conf")
 
     def __str__(self):
         s = "VERSION: '%s', BBLAYERS: '%s', MACHINE: '%s', DISTRO: '%s', DL_DIR: '%s'," % \
@@ -374,7 +380,6 @@ class Builder(gtk.Window):
         super(Builder, self).__init__()
 
         self.hob_image = "hob-image"
-        self.hob_toolchain = "hob-toolchain"
 
         # handler
         self.handler = hobHandler
@@ -441,6 +446,7 @@ class Builder(gtk.Window):
         self.handler.connect("recipe-populated",         self.handler_recipe_populated_cb)
         self.handler.connect("package-populated",        self.handler_package_populated_cb)
 
+        self.handler.append_to_bbfiles("${TOPDIR}/recipes/images/custom/*.bb")
         self.handler.append_to_bbfiles("${TOPDIR}/recipes/images/*.bb")
         self.initiate_new_build_async()
 
@@ -528,9 +534,9 @@ class Builder(gtk.Window):
         self.generate_configuration()
 
     def update_config_async(self):
-        self.switch_page(self.MACHINE_SELECTION)
         self.set_user_config()
         self.generate_configuration()
+        self.switch_page(self.MACHINE_SELECTION)
 
     def sanity_check(self):
         self.handler.trigger_sanity_check()
@@ -591,7 +597,6 @@ class Builder(gtk.Window):
             image = self.configuration.selected_image
         self.handler.generate_image(image,
                                     base_image,
-                                    self.hob_toolchain,
                                     packages,
                                     toolchain_packages,
                                     self.configuration.default_task)
@@ -733,6 +738,11 @@ class Builder(gtk.Window):
             self.configuration.update(params)
             self.parameters.update(params)
 
+    def set_base_image(self):
+        self.configuration.initial_selected_image = self.configuration.selected_image
+        if self.configuration.selected_image != self.recipe_model.__custom_image__:
+            self.hob_image = self.configuration.selected_image + "-edited"
+
     def reset(self):
         self.configuration.curr_mach = ""
         self.configuration.clear_selection()
@@ -957,7 +967,7 @@ class Builder(gtk.Window):
             if selected_image == self.recipe_model.__custom_image__:
                 if self.configuration.initial_selected_image != selected_image:
                     version = self.recipe_model.get_custom_image_version()
-                linkname = 'hob-image' + version+ "-" + self.configuration.curr_mach
+                linkname = self.hob_image + version + "-" + self.configuration.curr_mach
             else:
                 linkname = selected_image + '-' + self.configuration.curr_mach
             image_extension = self.get_image_extension()

bitbake/lib/bb/ui/crumbs/hig/deployimagedialog.py

@@ -167,7 +167,7 @@ class DeployImageDialog (CrumbsDialog):
                 if cmdline:
                     tmpfile = tempfile.NamedTemporaryFile()
                     cmdline += "\"sudo dd if=" + self.image_path + \
-                                " of=" + combo_item + "; echo $? > " + tmpfile.name + "\""
+                                " of=" + combo_item + " && sync; echo $? > " + tmpfile.name + "\""
                     subprocess.call(shlex.split(cmdline))
 
                     if int(tmpfile.readline().strip()) == 0:

bitbake/lib/bb/ui/crumbs/hig/simplesettingsdialog.py

@@ -230,10 +230,7 @@ class SimpleSettingsDialog (CrumbsDialog, SettingsUIHelper):
         self.configuration.sstatemirror = ""
         for mirror in self.sstatemirrors_list:
             if mirror[1] != "" and mirror[2].startswith("file://"):
-                if mirror[1].endswith("\\1"):
-                    smirror = mirror[2] + " " + mirror[1] + " \\n "
-                else:
-                    smirror = mirror[2] + " " + mirror[1] + "\\1 \\n "
+                smirror = mirror[2] + " " + mirror[1] + " \\n "
                 self.configuration.sstatemirror += smirror
         self.configuration.bbthread = self.bb_spinner.get_value_as_int()
         self.configuration.pmake = self.pmake_spinner.get_value_as_int()

bitbake/lib/bb/ui/crumbs/hobeventhandler.py

@@ -98,7 +98,6 @@ class HobHandler(gobject.GObject):
 
         self.server = server
         self.error_msg = ""
-        self.lastCommand = ""
         self.initcmd = None
         self.parsing = False
 
@@ -113,7 +112,6 @@ class HobHandler(gobject.GObject):
             self.generating = False
 
     def runCommand(self, commandline):
-        self.lastCommand = commandline[0]
         try:
             result, error = self.server.runCommand(commandline)
             if error:
@@ -166,19 +164,24 @@ class HobHandler(gobject.GObject):
         elif next_command == self.SUB_BUILD_IMAGE:
             self.clear_busy()
             self.building = True
-            targets = [self.image]
-            if self.toolchain_packages:
-                self.set_var_in_file("TOOLCHAIN_TARGET_TASK", " ".join(self.toolchain_packages), "local.conf")
-                targets.append(self.toolchain)
-            if targets[0] == "hob-image":
+            target = self.image
+
+            if self.base_image:
+                # Request the build of a custom image
+                self.generate_hob_base_image(target)
                 self.set_var_in_file("LINGUAS_INSTALL", "", "local.conf")
-                hobImage = self.runCommand(["matchFile", "hob-image.bb"])
-                if self.base_image != "Start with an empty image recipe":
+                hobImage = self.runCommand(["matchFile", target + ".bb"])
+                if self.base_image != self.recipe_model.__custom_image__:
                     baseImage = self.runCommand(["matchFile", self.base_image + ".bb"])
                     version = self.runCommand(["generateNewImage", hobImage, baseImage, self.package_queue, True, ""])
-                    targets[0] += version
+                    target += version
                     self.recipe_model.set_custom_image_version(version)
 
+            targets = [target]
+            if self.toolchain_packages:
+                self.set_var_in_file("TOOLCHAIN_TARGET_TASK", " ".join(self.toolchain_packages), "local.conf")
+                targets.append(target + ":do_populate_sdk")
+
             self.runCommand(["buildTargets", targets, self.default_task])
 
     def display_error(self):
@@ -252,10 +255,8 @@ class HobHandler(gobject.GObject):
             self.current_phase = None
             self.run_next_command()
         elif isinstance(event, bb.command.CommandFailed):
-            if self.error_msg == "":
-                self.error_msg = "The command \"" + self.lastCommand
-                self.error_msg += "\" was sent to bitbake server but it failed. Please"
-                self.error_msg += " check the code executed by this command in bitbake."
+            if event.error not in ("Forced shutdown", "Stopped build"):
+                self.error_msg += event.error
             self.commands_async = []
             self.display_error()
         elif isinstance(event, (bb.event.ParseStarted,
@@ -306,9 +307,7 @@ class HobHandler(gobject.GObject):
         self.runCommand(["createConfigFile", ".hob.conf"])
 
     def set_extra_inherit(self, bbclass):
-        inherits = self.runCommand(["getVariable", "INHERIT"]) or ""
-        inherits = inherits + " " + bbclass
-        self.set_var_in_file("INHERIT", inherits, ".hob.conf")
+        self.append_var_in_file("INHERIT", bbclass, ".hob.conf")
 
     def set_bblayers(self, bblayers):
         self.set_var_in_file("BBLAYERS", " ".join(bblayers), "bblayers.conf")
@@ -361,20 +360,32 @@ class HobHandler(gobject.GObject):
         self.set_var_in_file("EXTRA_SETTING", extra_setting, "local.conf")
 
     def set_extra_config(self, extra_setting):
-        old_extra_setting = ast.literal_eval(self.runCommand(["getVariable", "EXTRA_SETTING"]) or "{}")
-        if extra_setting:
-            self.set_var_in_file("EXTRA_SETTING", extra_setting, "local.conf")
-        else:
-            self.remove_var_from_file("EXTRA_SETTING")
+        old_extra_setting = self.runCommand(["getVariable", "EXTRA_SETTING"]) or {}
+        old_extra_setting = str(old_extra_setting)
 
-        #remove not needed settings from conf
-        for key in old_extra_setting:
+        old_extra_setting = ast.literal_eval(old_extra_setting)
+        if not type(old_extra_setting) == dict:
+            old_extra_setting = {}
+
+        # settings not changed
+        if old_extra_setting == extra_setting:
+            return
+
+        # remove the old EXTRA SETTING variable
+        self.remove_var_from_file("EXTRA_SETTING")
+
+        # remove old settings from conf
+        for key in old_extra_setting.keys():
             if key not in extra_setting:
                 self.remove_var_from_file(key)
-        for key in extra_setting.keys():
-            value = extra_setting[key]
+
+        # add new settings
+        for key, value in extra_setting.iteritems():
             self.set_var_in_file(key, value, "local.conf")
 
+        if extra_setting:
+            self.set_var_in_file("EXTRA_SETTING", extra_setting, "local.conf")
+
     def set_http_proxy(self, http_proxy):
         self.set_var_in_file("http_proxy", http_proxy, "local.conf")
 
@@ -405,12 +416,12 @@ class HobHandler(gobject.GObject):
 
     def generate_configuration(self):
         self.runCommand(["setPrePostConfFiles", "conf/.hob.conf", ""])
+        self.commands_async.append(self.SUB_PARSE_CONFIG)
         self.commands_async.append(self.SUB_PATH_LAYERS)
         self.commands_async.append(self.SUB_FILES_DISTRO)
         self.commands_async.append(self.SUB_FILES_MACH)
         self.commands_async.append(self.SUB_FILES_SDKMACH)
         self.commands_async.append(self.SUB_MATCH_CLASS)
-        self.commands_async.append(self.SUB_PARSE_CONFIG)
         self.run_next_command(self.GENERATE_CONFIGURATION)
 
     def generate_recipes(self):
@@ -429,10 +440,9 @@ class HobHandler(gobject.GObject):
         self.commands_async.append(self.SUB_BUILD_RECIPES)
         self.run_next_command(self.GENERATE_PACKAGES)
 
-    def generate_image(self, image, base_image, toolchain, image_packages=[], toolchain_packages=[], default_task="build"):
+    def generate_image(self, image, base_image, image_packages=[], toolchain_packages=[], default_task="build"):
         self.image = image
         self.base_image = base_image
-        self.toolchain = toolchain
         self.package_queue = image_packages
         self.toolchain_packages = toolchain_packages
         self.default_task = default_task
@@ -442,9 +452,16 @@ class HobHandler(gobject.GObject):
         self.run_next_command(self.GENERATE_IMAGE)
 
     def generate_new_image(self, image, base_image, package_queue, description):
-        base_image = self.runCommand(["matchFile", self.base_image + ".bb"])
+        if base_image:
+            base_image = self.runCommand(["matchFile", self.base_image + ".bb"])
         self.runCommand(["generateNewImage", image, base_image, package_queue, False, description])
 
+    def generate_hob_base_image(self, hob_image):
+        image_dir = self.get_topdir() + "/recipes/images/"
+        recipe_name = hob_image + ".bb"
+        self.ensure_dir(image_dir)
+        self.generate_new_image(image_dir + recipe_name, None, [], "")
+
     def ensure_dir(self, directory):
         self.runCommand(["ensureDir", directory])
 
@@ -504,19 +521,14 @@ class HobHandler(gobject.GObject):
         bbfiles = self.runCommand(["getVariable", "BBFILES", "False"]) or ""
         bbfiles = bbfiles.split()
         if val not in bbfiles:
-            self.append_var_in_file("BBFILES", val, "local.conf")
+            self.append_var_in_file("BBFILES", val, "bblayers.conf")
 
     def get_parameters(self):
         # retrieve the parameters from bitbake
         params = {}
         params["core_base"] = self.runCommand(["getVariable", "COREBASE"]) or ""
-        hob_layer = params["core_base"] + "/meta-hob"
         params["layer"] = self.runCommand(["getVariable", "BBLAYERS"]) or ""
         params["layers_non_removable"] = self.runCommand(["getVariable", "BBLAYERS_NON_REMOVABLE"]) or ""
-        if hob_layer not in params["layer"].split():
-            params["layer"] += (" " + hob_layer)
-        if hob_layer not in params["layers_non_removable"].split():
-            params["layers_non_removable"] += (" " + hob_layer)
         params["dldir"] = self.runCommand(["getVariable", "DL_DIR"]) or ""
         params["machine"] = self.runCommand(["getVariable", "MACHINE"]) or ""
         params["distro"] = self.runCommand(["getVariable", "DISTRO"]) or "defaultsetup"

bitbake/lib/bb/ui/crumbs/hoblistmodel.py

@@ -703,8 +703,8 @@ class RecipeListModel(gtk.ListStore):
 
             if ('packagegroup.bbclass' in " ".join(inherits)):
                 atype = 'packagegroup'
-            elif ('image.bbclass' in " ".join(inherits)):
-                if name != "hob-image":
+            elif ('/image.bbclass' in " ".join(inherits)):
+                if "edited" not in name:
                     atype = 'image'
                     install = event_model["rdepends-pkg"].get(item, []) + event_model["rrecs-pkg"].get(item, [])
             elif ('meta-' in name):

bitbake/lib/bb/ui/crumbs/imageconfigurationpage.py

@@ -304,14 +304,15 @@ class ImageConfigurationPage (HobPage):
         self.builder.window.set_cursor(None)
 
     def machine_combo_changed_cb(self, machine_combo):
-        self.builder.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.WATCH))
-        self.builder.wait(0.1) #wait for combo and cursor to update
         self.stopping = False
         self.builder.parsing_warnings = []
         combo_item = machine_combo.get_active_text()
         if not combo_item or combo_item == self.__dummy_machine__:
             return
 
+        self.builder.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.WATCH))
+        self.builder.wait(0.1) #wait for combo and cursor to update
+
         # remove __dummy_machine__ item from the store list after first user selection
         # because it is no longer valid
         combo_store = machine_combo.get_model()
@@ -378,7 +379,7 @@ class ImageConfigurationPage (HobPage):
         selected_image = self.image_combo.get_active_text()
         if selected_image == self.__custom_image__:
             topdir = self.builder.get_topdir()
-            images_dir = topdir + "/recipes/images/"
+            images_dir = topdir + "/recipes/images/custom/"
             self.builder.ensure_dir(images_dir)
 
             dialog = RetrieveImageDialog(images_dir, "Select from my image recipes",
@@ -458,6 +459,7 @@ class ImageConfigurationPage (HobPage):
             for i in self.builder.parameters.image_black_pattern.split():
                 black_pattern.append(re.compile(i))
         black_pattern.append(re.compile("hob-image"))
+        black_pattern.append(re.compile("edited(-[0-9]*)*.bb$"))
 
         it = image_model.get_iter_first()
         self._image_combo_disconnect_signal()
@@ -544,7 +546,7 @@ class ImageConfigurationPage (HobPage):
         self.builder.just_bake()
 
     def edit_image_button_clicked_cb(self, button):
-        self.builder.configuration.initial_selected_image = self.builder.configuration.selected_image
+        self.builder.set_base_image()
         self.builder.show_recipes()
 
     def my_images_button_clicked_cb(self, button):

bitbake/lib/bb/ui/crumbs/imagedetailspage.py

@@ -632,7 +632,7 @@ class ImageDetailsPage (HobPage):
 
     def save_button_clicked_cb(self, button):
         topdir = self.builder.get_topdir()
-        images_dir = topdir + "/recipes/images/"
+        images_dir = topdir + "/recipes/images/custom/"
         self.builder.ensure_dir(images_dir)
 
         self.name_field_template = self.builder.image_configuration_page.custom_image_selected

bitbake/lib/bb/ui/crumbs/packageselectionpage.py

@@ -293,7 +293,7 @@ class PackageSelectionPage (HobPage):
         self.refresh_selection()
         if not self.builder.customized:
             self.builder.customized = True
-            self.builder.configuration.initial_selected_image = self.builder.configuration.selected_image
+            self.builder.set_base_image()
             self.builder.configuration.selected_image = self.recipe_model.__custom_image__
             self.builder.rcppkglist_populated()
 

bitbake/lib/bb/ui/depexp.py

@@ -198,7 +198,7 @@ def main(server, eventHandler, params):
             print("Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.")
             return 1
         if 'msg' in cmdline and cmdline['msg']:
-            logger.error(cmdline['msg'])
+            print(cmdline['msg'])
             return 1
         cmdline = cmdline['action']
         if not cmdline or cmdline[0] != "generateDotGraph":

bitbake/lib/bb/ui/knotty.py

@@ -31,8 +31,11 @@ import time
 import fcntl
 import struct
 import copy
+import atexit
 from bb.ui import uihelper
 
+featureSet = [bb.cooker.CookerFeatures.SEND_SANITYEVENTS]
+
 logger = logging.getLogger("BitBake")
 interactive = sys.stdout.isatty()
 
@@ -46,7 +49,7 @@ class BBProgress(progressbar.ProgressBar):
             self._resize_default = signal.getsignal(signal.SIGWINCH)
         except:
             self._resize_default = None
-        progressbar.ProgressBar.__init__(self, maxval, [self.msg + ": "] + widgets)
+        progressbar.ProgressBar.__init__(self, maxval, [self.msg + ": "] + widgets, fd=sys.stdout)
 
     def _handle_resize(self, signum, frame):
         progressbar.ProgressBar._handle_resize(self, signum, frame)
@@ -130,7 +133,7 @@ class TerminalFilter(object):
                 cr = (25, 80)
         return cr[1]
 
-    def __init__(self, main, helper, console, format):
+    def __init__(self, main, helper, console, errconsole, format):
         self.main = main
         self.helper = helper
         self.cuu = None
@@ -171,6 +174,7 @@ class TerminalFilter(object):
         except:
             self.cuu = None
         console.addFilter(InteractConsoleLogFilter(self, format))
+        errconsole.addFilter(InteractConsoleLogFilter(self, format))
 
     def clearFooter(self):
         if self.footer_present:
@@ -253,11 +257,15 @@ def main(server, eventHandler, params, tf = TerminalFilter):
     helper = uihelper.BBUIHelper()
 
     console = logging.StreamHandler(sys.stdout)
+    errconsole = logging.StreamHandler(sys.stderr)
     format_str = "%(levelname)s: %(message)s"
     format = bb.msg.BBLogFormatter(format_str)
-    bb.msg.addDefaultlogFilter(console)
+    bb.msg.addDefaultlogFilter(console, bb.msg.BBLogFilterStdOut)
+    bb.msg.addDefaultlogFilter(errconsole, bb.msg.BBLogFilterStdErr)
     console.setFormatter(format)
+    errconsole.setFormatter(format)
     logger.addHandler(console)
+    logger.addHandler(errconsole)
 
     if params.options.remote_server and params.options.kill_server:
         server.terminateServer()
@@ -276,6 +284,7 @@ def main(server, eventHandler, params, tf = TerminalFilter):
 
     if not params.observe_only:
         params.updateFromServer(server)
+        params.updateToServer(server)
         cmdline = params.parseActions()
         if not cmdline:
             print("Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.")
@@ -302,23 +311,24 @@ def main(server, eventHandler, params, tf = TerminalFilter):
     warnings = 0
     taskfailures = []
 
-    termfilter = tf(main, helper, console, format)
+    termfilter = tf(main, helper, console, errconsole, format)
+    atexit.register(termfilter.finish)
 
     while True:
         try:
             event = eventHandler.waitEvent(0)
-            if event is None:
-                termfilter.updateFooter()
-                event = eventHandler.waitEvent(0.25)
             if event is None:
                 if main.shutdown > 1:
                     break
-                continue
+                termfilter.updateFooter()
+                event = eventHandler.waitEvent(0.25)
+                if event is None:
+                    continue
             helper.eventHandler(event)
             if isinstance(event, bb.runqueue.runQueueExitWait):
                 if not main.shutdown:
                     main.shutdown = 1
-
+                continue
             if isinstance(event, bb.event.LogExecTTY):
                 if log_exec_tty:
                     tries = event.retries
@@ -342,11 +352,14 @@ def main(server, eventHandler, params, tf = TerminalFilter):
                 # For "normal" logging conditions, don't show note logs from tasks
                 # but do show them if the user has changed the default log level to
                 # include verbose/debug messages
-                if event.taskpid != 0 and event.levelno <= format.NOTE:
+                if event.taskpid != 0 and event.levelno <= format.NOTE and (event.levelno < llevel or (event.levelno == format.NOTE and llevel != format.VERBOSE)):
                     continue
                 logger.handle(event)
                 continue
 
+            if isinstance(event, bb.build.TaskFailedSilent):
+                logger.warn("Logfile for failed setscene task is %s" % event.logfile)
+                continue
             if isinstance(event, bb.build.TaskFailed):
                 return_value = 1
                 logfile = event.logfile
@@ -483,7 +496,6 @@ def main(server, eventHandler, params, tf = TerminalFilter):
                                   bb.event.RecipeParsed,
                                   bb.event.RecipePreFinalise,
                                   bb.runqueue.runQueueEvent,
-                                  bb.runqueue.runQueueExitWait,
                                   bb.event.OperationStarted,
                                   bb.event.OperationCompleted,
                                   bb.event.OperationProgress,
@@ -496,7 +508,11 @@ def main(server, eventHandler, params, tf = TerminalFilter):
             termfilter.clearFooter()
             # ignore interrupted io
             if ioerror.args[0] == 4:
-                pass
+                continue
+            sys.stderr.write(str(ioerror))
+            if not params.observe_only:
+                _, error = server.runCommand(["stateForceShutdown"])
+            main.shutdown = 2
         except KeyboardInterrupt:
             termfilter.clearFooter()
             if params.observe_only:
@@ -515,27 +531,34 @@ def main(server, eventHandler, params, tf = TerminalFilter):
                     logger.error("Unable to cleanly shutdown: %s" % error)
             main.shutdown = main.shutdown + 1
             pass
+        except Exception as e:
+            sys.stderr.write(str(e))
+            if not params.observe_only:
+                _, error = server.runCommand(["stateForceShutdown"])
+            main.shutdown = 2
+    try:
+        summary = ""
+        if taskfailures:
+            summary += pluralise("\nSummary: %s task failed:",
+                                 "\nSummary: %s tasks failed:", len(taskfailures))
+            for failure in taskfailures:
+                summary += "\n  %s" % failure
+        if warnings:
+            summary += pluralise("\nSummary: There was %s WARNING message shown.",
+                                 "\nSummary: There were %s WARNING messages shown.", warnings)
+        if return_value and errors:
+            summary += pluralise("\nSummary: There was %s ERROR message shown, returning a non-zero exit code.",
+                                 "\nSummary: There were %s ERROR messages shown, returning a non-zero exit code.", errors)
+        if summary:
+            print(summary)
 
-    summary = ""
-    if taskfailures:
-        summary += pluralise("\nSummary: %s task failed:",
-                             "\nSummary: %s tasks failed:", len(taskfailures))
-        for failure in taskfailures:
-            summary += "\n  %s" % failure
-    if warnings:
-        summary += pluralise("\nSummary: There was %s WARNING message shown.",
-                             "\nSummary: There were %s WARNING messages shown.", warnings)
-    if return_value and errors:
-        summary += pluralise("\nSummary: There was %s ERROR message shown, returning a non-zero exit code.",
-                             "\nSummary: There were %s ERROR messages shown, returning a non-zero exit code.", errors)
-    if summary:
-        print(summary)
-
-    if interrupted:
-        print("Execution was interrupted, returning a non-zero exit code.")
-        if return_value == 0:
-            return_value = 1
-
-    termfilter.finish()
+        if interrupted:
+            print("Execution was interrupted, returning a non-zero exit code.")
+            if return_value == 0:
+                return_value = 1
+    except IOError as e:
+        import errno
+        if e.errno == errno.EPIPE:
+            pass
 
     return return_value