Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/bitbake/bin/bitbake-diffsigs b/bitbake/bin/bitbake-diffsigs
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+++ b/bitbake/bin/bitbake-diffsigs
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+#!/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)