diff options
Diffstat (limited to 'import-layers/yocto-poky/bitbake/bin/bitbake-diffsigs')
-rwxr-xr-x | import-layers/yocto-poky/bitbake/bin/bitbake-diffsigs | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/bitbake/bin/bitbake-diffsigs b/import-layers/yocto-poky/bitbake/bin/bitbake-diffsigs new file mode 100755 index 0000000000..196f0b73e8 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/bin/bitbake-diffsigs @@ -0,0 +1,138 @@ +#!/usr/bin/env python + +# bitbake-diffsigs +# BitBake task signature data comparison utility +# +# Copyright (C) 2012-2013 Intel Corporation +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import os +import sys +import warnings +import fnmatch +import optparse +import logging + +sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib')) + +import bb.tinfoil +import bb.siggen + +def logger_create(name, output=sys.stderr): + logger = logging.getLogger(name) + console = logging.StreamHandler(output) + format = bb.msg.BBLogFormatter("%(levelname)s: %(message)s") + if output.isatty(): + format.enable_color() + console.setFormatter(format) + logger.addHandler(console) + logger.setLevel(logging.INFO) + return logger + +logger = logger_create('bitbake-diffsigs') + +def find_compare_task(bbhandler, pn, taskname): + """ Find the most recent signature files for the specified PN/task and compare them """ + + def get_hashval(siginfo): + if siginfo.endswith('.siginfo'): + return siginfo.rpartition(':')[2].partition('_')[0] + else: + return siginfo.rpartition('.')[2] + + if not hasattr(bb.siggen, 'find_siginfo'): + logger.error('Metadata does not support finding signature data files') + sys.exit(1) + + if not taskname.startswith('do_'): + taskname = 'do_%s' % taskname + + filedates = bb.siggen.find_siginfo(pn, taskname, None, bbhandler.config_data) + latestfiles = sorted(filedates.keys(), key=lambda f: filedates[f])[-3:] + if not latestfiles: + logger.error('No sigdata files found matching %s %s' % (pn, taskname)) + sys.exit(1) + elif len(latestfiles) < 2: + logger.error('Only one matching sigdata file found for the specified task (%s %s)' % (pn, taskname)) + sys.exit(1) + else: + # It's possible that latestfiles contain 3 elements and the first two have the same hash value. + # In this case, we delete the second element. + # The above case is actually the most common one. Because we may have sigdata file and siginfo + # file having the same hash value. Comparing such two files makes no sense. + if len(latestfiles) == 3: + hash0 = get_hashval(latestfiles[0]) + hash1 = get_hashval(latestfiles[1]) + if hash0 == hash1: + latestfiles.pop(1) + + # Define recursion callback + def recursecb(key, hash1, hash2): + hashes = [hash1, hash2] + hashfiles = bb.siggen.find_siginfo(key, None, hashes, bbhandler.config_data) + + 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 + + # Recurse into signature comparison + output = bb.siggen.compare_sigfiles(latestfiles[0], latestfiles[1], recursecb) + if output: + print '\n'.join(output) + sys.exit(0) + + + +parser = optparse.OptionParser( + description = "Compares siginfo/sigdata files written out by BitBake", + usage = """ + %prog -t recipename taskname + %prog sigdatafile1 sigdatafile2 + %prog sigdatafile1""") + +parser.add_option("-t", "--task", + help = "find the signature data files for last two runs of the specified task and compare them", + action="store", dest="taskargs", nargs=2, metavar='recipename taskname') + +options, args = parser.parse_args(sys.argv) + +if options.taskargs: + tinfoil = bb.tinfoil.Tinfoil() + tinfoil.prepare(config_only = True) + find_compare_task(tinfoil, options.taskargs[0], options.taskargs[1]) +else: + if len(args) == 1: + parser.print_help() + else: + import cPickle + try: + if len(args) == 2: + output = bb.siggen.dump_sigfile(sys.argv[1]) + else: + output = bb.siggen.compare_sigfiles(sys.argv[1], sys.argv[2]) + except IOError as e: + logger.error(str(e)) + sys.exit(1) + except cPickle.UnpicklingError, EOFError: + logger.error('Invalid signature data - ensure you are specifying sigdata/siginfo files') + sys.exit(1) + + if output: + print '\n'.join(output) |