Add the ability to compare the two most recent runs of a specified task, and follow dependent hash changes recursively. This enables you to trace back and find exactly why a task was re-run after the fact. Note that this relies on the metadata providing a function, hooked in as bb.siggen.find_siginfo, which allows searching in the appropriate places to find signature data files. (Bitbake rev: cc70181659c07e04c205e17832846acf1ff31d28) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
103 lines
3.4 KiB
Python
Executable file
103 lines
3.4 KiB
Python
Executable file
#!/usr/bin/env python
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# bitbake-diffsigs
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# BitBake task signature data comparison utility
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#
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# Copyright (C) 2012 Intel Corporation
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import os
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import sys
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import warnings
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import fnmatch
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import optparse
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import logging
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sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
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import bb.tinfoil
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import bb.siggen
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logger = logging.getLogger('BitBake')
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def find_compare_task(bbhandler, pn, taskname):
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""" Find the most recent signature files for the specified PN/task and compare them """
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if not hasattr(bb.siggen, 'find_siginfo'):
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logger.error('Metadata does not support finding signature data files')
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sys.exit(1)
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filedates = bb.siggen.find_siginfo(pn, taskname, None, bbhandler.config_data)
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latestfiles = sorted(filedates.keys(), key=lambda f: filedates[f])[-2:]
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if not latestfiles:
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logger.error('No sigdata files found matching %s %s' % (pn, taskname))
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sys.exit(1)
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elif len(latestfiles) < 2:
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logger.error('Only one matching sigdata file found for the specified task (%s %s)' % (pn, taskname))
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sys.exit(1)
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else:
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# Define recursion callback
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def recursecb(key, hash1, hash2):
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hashes = [hash1, hash2]
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hashfiles = bb.siggen.find_siginfo(key, None, hashes, bbhandler.config_data)
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recout = []
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if len(hashfiles) == 2:
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out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb)
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recout.extend(list(' ' + l for l in out2))
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else:
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recout.append("Unable to find matching sigdata for %s with hashes %s or %s" % (key, hash1, hash2))
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return recout
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# Recurse into signature comparison
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output = bb.siggen.compare_sigfiles(latestfiles[0], latestfiles[1], recursecb)
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if output:
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print '\n'.join(output)
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sys.exit(0)
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parser = optparse.OptionParser(
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usage = """
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%prog -t recipename taskname
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%prog sigdatafile1 sigdatafile2
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%prog sigdatafile1""")
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parser.add_option("-t", "--task",
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help = "find the signature data files for last two runs of the specified task and compare them",
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action="store_true", dest="taskmode")
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options, args = parser.parse_args(sys.argv)
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if len(args) == 1:
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parser.print_help()
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else:
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tinfoil = bb.tinfoil.Tinfoil()
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if options.taskmode:
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if len(args) < 3:
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logger.error("Please specify a recipe and task name")
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sys.exit(1)
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tinfoil.prepare(config_only = True)
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find_compare_task(tinfoil, args[1], args[2])
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else:
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if len(args) == 2:
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output = bb.siggen.dump_sigfile(sys.argv[1])
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else:
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output = bb.siggen.compare_sigfiles(sys.argv[1], sys.argv[2])
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if output:
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print '\n'.join(output)
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