buildhistory-diff: add option to compare actual signature differences
Use the code underpinning bitbake-diffsigs to add an option to buildhistory-diff to determine and display the differences between the actual signature inputs, with a twist - we collapse identical changes across different tasks, showing only the most recent task to have that difference, meaning that there's less noise to wade through when you just want to know what changed in order to cause some rebuilding you're seeing. (From OE-Core rev: 86cb4b01f2020553902554e512c02147eb4e0f51) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -13,7 +13,10 @@ import os.path
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import difflib
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import git
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import re
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import hashlib
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import collections
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import bb.utils
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import bb.tinfoil
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# How to display fields
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@ -410,7 +413,7 @@ def compare_dict_blobs(path, ablob, bblob, report_all, report_ver):
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return changes
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def compare_siglists(a_blob, b_blob):
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def compare_siglists(a_blob, b_blob, taskdiff=False):
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# FIXME collapse down a recipe's tasks?
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alines = a_blob.data_stream.read().decode('utf-8').splitlines()
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blines = b_blob.data_stream.read().decode('utf-8').splitlines()
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@ -429,26 +432,83 @@ def compare_siglists(a_blob, b_blob):
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adict = readsigs(alines)
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bdict = readsigs(blines)
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out = []
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changecount = 0
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addcount = 0
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removecount = 0
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for key in keys:
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siga = adict.get(key, None)
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sigb = bdict.get(key, None)
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if siga is not None and sigb is not None and siga != sigb:
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out.append('%s changed from %s to %s' % (key, siga, sigb))
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changecount += 1
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elif siga is None:
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out.append('%s was added' % key)
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addcount += 1
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elif sigb is None:
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removecount += 1
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out.append('%s was removed' % key)
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if taskdiff:
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with bb.tinfoil.Tinfoil() as tinfoil:
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tinfoil.prepare(config_only=True)
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changes = collections.OrderedDict()
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def compare_hashfiles(pn, taskname, hash1, hash2):
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hashes = [hash1, hash2]
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hashfiles = bb.siggen.find_siginfo(pn, taskname, hashes, tinfoil.config_data)
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if not taskname:
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(pn, taskname) = pn.rsplit('.', 1)
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pn = pnmap.get(pn, pn)
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desc = '%s.%s' % (pn, taskname)
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if len(hashfiles) == 0:
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out.append("Unable to find matching sigdata for %s with hashes %s or %s" % (desc, hash1, hash2))
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elif not hash1 in hashfiles:
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out.append("Unable to find matching sigdata for %s with hash %s" % (desc, hash1))
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elif not hash2 in hashfiles:
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out.append("Unable to find matching sigdata for %s with hash %s" % (desc, hash2))
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else:
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out2 = bb.siggen.compare_sigfiles(hashfiles[hash1], hashfiles[hash2], recursecb, collapsed=True)
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for line in out2:
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m = hashlib.sha256()
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m.update(line.encode('utf-8'))
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entry = changes.get(m.hexdigest(), (line, []))
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if desc not in entry[1]:
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changes[m.hexdigest()] = (line, entry[1] + [desc])
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# Define recursion callback
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def recursecb(key, hash1, hash2):
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compare_hashfiles(key, None, hash1, hash2)
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return []
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for key in keys:
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siga = adict.get(key, None)
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sigb = bdict.get(key, None)
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if siga is not None and sigb is not None and siga != sigb:
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changecount += 1
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(pn, taskname) = key.rsplit('.', 1)
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compare_hashfiles(pn, taskname, siga, sigb)
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elif siga is None:
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addcount += 1
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elif sigb is None:
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removecount += 1
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for key, item in changes.items():
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line, tasks = item
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if len(tasks) == 1:
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desc = tasks[0]
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elif len(tasks) == 2:
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desc = '%s and %s' % (tasks[0], tasks[1])
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else:
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desc = '%s and %d others' % (tasks[-1], len(tasks)-1)
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out.append('%s: %s' % (desc, line))
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else:
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for key in keys:
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siga = adict.get(key, None)
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sigb = bdict.get(key, None)
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if siga is not None and sigb is not None and siga != sigb:
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out.append('%s changed from %s to %s' % (key, siga, sigb))
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changecount += 1
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elif siga is None:
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out.append('%s was added' % key)
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addcount += 1
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elif sigb is None:
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out.append('%s was removed' % key)
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removecount += 1
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out.append('Summary: %d tasks added, %d tasks removed, %d tasks modified (%.1f%%)' % (addcount, removecount, changecount, (changecount / float(len(bdict)) * 100)))
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return '\n'.join(out)
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def process_changes(repopath, revision1, revision2='HEAD', report_all=False, report_ver=False, sigs=False):
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def process_changes(repopath, revision1, revision2='HEAD', report_all=False, report_ver=False, sigs=False, sigsdiff=False):
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repo = git.Repo(repopath)
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assert repo.bare == False
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commit = repo.commit(revision1)
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@ -456,10 +516,10 @@ def process_changes(repopath, revision1, revision2='HEAD', report_all=False, rep
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changes = []
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if sigs:
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if sigs or sigsdiff:
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for d in diff.iter_change_type('M'):
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if d.a_blob.path == 'siglist.txt':
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changes.append(compare_siglists(d.a_blob, d.b_blob))
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changes.append(compare_siglists(d.a_blob, d.b_blob, taskdiff=sigsdiff))
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return changes
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for d in diff.iter_change_type('M'):
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@ -34,8 +34,11 @@ def main():
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help = "Report all changes, not just the default significant ones",
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action="store_true", dest="report_all", default=False)
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parser.add_option("-s", "--signatures",
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help = "Report on signature differences instead of output",
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help = "Report list of signatures differing instead of output",
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action="store_true", dest="sigs", default=False)
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parser.add_option("-S", "--signatures-with-diff",
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help = "Report on actual signature differences instead of output (requires signature data to have been generated, either by running the actual tasks or using bitbake -S)",
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action="store_true", dest="sigsdiff", default=False)
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options, args = parser.parse_args(sys.argv)
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@ -89,7 +92,7 @@ def main():
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import gitdb
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try:
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changes = oe.buildhistory_analysis.process_changes(options.buildhistory_dir, fromrev, torev, options.report_all, options.report_ver, options.sigs)
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changes = oe.buildhistory_analysis.process_changes(options.buildhistory_dir, fromrev, torev, options.report_all, options.report_ver, options.sigs, options.sigsdiff)
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except gitdb.exc.BadObject as e:
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if len(args) == 1:
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sys.stderr.write("Unable to find previous build revision in buildhistory repository\n\n")
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