Richard Purdie bc95ddec6d bitbake: utils: Improve better_exec traceback handling
The current bitbake tracebacks are hard to read/confusing and sometimes
incomplete. This patch attempts to do better by:

* Moving the note about the exact exception to the end to make things
  read in sequence
* Merged the initial stack trace to become part of the code dump
* Added handling for "/xxxx" file paths since we can load these files
  and include the data as part of the trace
* Dropped the ERROR: prefix to every line, allowing the error messages to
  be spacially accosicated in the UIs
* Moved the "From:" line to the top of each code block and ensured its present
  consistently

With the complexity now in this funciton, I've added try/except wrapping around
it to ensure we catch exceptions in the exception handler too.

Example before:

"""
ERROR: Error executing a python function in /media/build1/poky/meta/recipes-core/eglibc/eglibc-initial_2.17.bb:
TypeError: 'filter' object is not subscriptable

ERROR: The stack trace of python calls that resulted in this exception/failure was:
ERROR:   File "do_populate_lic", line 13, in <module>
ERROR:
ERROR:   File "do_populate_lic", line 6, in do_populate_lic
ERROR:
ERROR:   File "license.bbclass", line 99, in find_license_files
ERROR:
ERROR:   File "/media/build1/poky/meta/lib/oe/license.py", line 38, in visit_string
ERROR:     if pos > 0 and license_pattern.match(elements[pos-1]):
ERROR:
ERROR: The code that was being executed was:
ERROR:      0009:    destdir = os.path.join(d.getVar('LICSSTATEDIR', True), d.getVar('PN', True))
ERROR:      0010:    copy_license_files(lic_files_paths, destdir)
ERROR:      0011:
ERROR:      0012:
ERROR:  *** 0013:do_populate_lic(d)
ERROR:      0014:
ERROR: [From file: 'do_populate_lic', lineno: 13, function: <module>]
ERROR:      0002:def do_populate_lic(d):
ERROR:      0003:    """
ERROR:      0004:    Populate LICENSE_DIRECTORY with licenses.
ERROR:      0005:    """
ERROR:  *** 0006:    lic_files_paths = find_license_files(d)
ERROR:      0007:
ERROR:      0008:    # The base directory we wrangle licenses to
ERROR:      0009:    destdir = os.path.join(d.getVar('LICSSTATEDIR', True), d.getVar('PN', True))
ERROR:      0010:    copy_license_files(lic_files_paths, destdir)
ERROR: [From file: 'do_populate_lic', lineno: 6, function: do_populate_lic]
ERROR:      0095:        lic_files_paths.append((os.path.basename(path), srclicfile))
ERROR:      0096:
ERROR:      0097:    v = FindVisitor()
ERROR:      0098:    try:
ERROR:  *** 0099:        v.visit_string(license_types)
ERROR:      0100:    except oe.license.InvalidLicense as exc:
ERROR:      0101:        bb.fatal('%s: %s' % (d.getVar('PF', True), exc))
ERROR:      0102:    except SyntaxError:
ERROR:      0103:        bb.warn("%s: Failed to parse it's LICENSE field." % (d.getVar('PF', True)))
ERROR: [From file: 'license.bbclass', lineno: 99, function: find_license_files]
ERROR: Function failed: do_populate_lic
ERROR: Logfile of failure stored in: /media/build1/poky/build/tmp/work/i586-poky-linux/eglibc-initial/2.17-r3/temp/log.do_populate_lic.17442
"""

Example after:

"""
ERROR: Error executing a python function in /media/build1/poky/meta/recipes-core/eglibc/eglibc-initial_2.17.bb:

The stack trace of python calls that resulted in this exception/failure was:
File: 'do_populate_lic', lineno: 13, function: <module>
     0009:    destdir = os.path.join(d.getVar('LICSSTATEDIR', True), d.getVar('PN', True))
     0010:    copy_license_files(lic_files_paths, destdir)
     0011:
     0012:
 *** 0013:do_populate_lic(d)
     0014:
File: 'do_populate_lic', lineno: 6, function: do_populate_lic
     0002:def do_populate_lic(d):
     0003:    """
     0004:    Populate LICENSE_DIRECTORY with licenses.
     0005:    """
 *** 0006:    lic_files_paths = find_license_files(d)
     0007:
     0008:    # The base directory we wrangle licenses to
     0009:    destdir = os.path.join(d.getVar('LICSSTATEDIR', True), d.getVar('PN', True))
     0010:    copy_license_files(lic_files_paths, destdir)
File: 'license.bbclass', lineno: 99, function: find_license_files
     0095:        lic_files_paths.append((os.path.basename(path), srclicfile))
     0096:
     0097:    v = FindVisitor()
     0098:    try:
 *** 0099:        v.visit_string(license_types)
     0100:    except oe.license.InvalidLicense as exc:
     0101:        bb.fatal('%s: %s' % (d.getVar('PF', True), exc))
     0102:    except SyntaxError:
     0103:        bb.warn("%s: Failed to parse it's LICENSE field." % (d.getVar('PF', True)))
File: '/media/build1/poky/meta/lib/oe/license.py', lineno: 38, function: visit_string
     0034:        new_elements = []
     0035:        elements = filter(lambda x: x.strip(), license_operator.split(licensestr))
     0036:        for pos, element in enumerate(elements):
     0037:            if license_pattern.match(element):
 *** 0038:                if pos > 0 and license_pattern.match(elements[pos-1]):
     0039:                    new_elements.append('&')
     0040:                element = '"' + element + '"'
     0041:            elif not license_operator.match(element):
     0042:                raise InvalidLicense(element)
Exception: TypeError: 'filter' object is not subscriptable

ERROR: Function failed: do_populate_lic
ERROR: Logfile of failure stored in: /media/build1/poky/build/tmp/work/i586-poky-linux/eglibc-initial/2.17-r3/temp/log.do_populate_lic.3275
ERROR: Task 9 (/media/build1/poky/meta/recipes-core/eglibc/eglibc-initial_2.17.bb, do_populate_lic) failed with exit code '1
"""

(Bitbake rev: c5de66b870406d9bd1161a9b7e2b04fe6eb065fe)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-05-09 14:06:52 +01:00
2012-08-22 14:05:00 +01:00

Poky

Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.

Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of layers which extend the systems capabilities in a modular way.

As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.

The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/documentation

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.

For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/

Where to Send Patches

As Poky is an integration repository, patches against the various components should be sent to their respective upstreams.

bitbake: bitbake-devel@lists.openembedded.org

meta-yocto: poky@yoctoproject.org

Most everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository. openembedded-core@lists.openembedded.org

Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.

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Readme 249 MiB