diff options
Diffstat (limited to 'build/build-bisect.py')
| -rwxr-xr-x | build/build-bisect.py | 283 |
1 files changed, 3 insertions, 280 deletions
diff --git a/build/build-bisect.py b/build/build-bisect.py index 84807bc..33fcb89 100755 --- a/build/build-bisect.py +++ b/build/build-bisect.py @@ -3,286 +3,9 @@ # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. -"""Snapshot Build Bisect Tool - -This script bisects a snapshot archive using binary search. It starts at -a bad revision (it will try to guess HEAD) and asks for a last known-good -revision. It will then binary search across this revision range by downloading, -unzipping, and opening Chromium for you. After testing the specific revision, -it will ask you whether it is good or bad before continuing the search. -""" - -# Base URL to download snapshots from. -BUILD_BASE_URL = 'http://build.chromium.org/buildbot/snapshots/' - -# The type (platform) of the build archive. This is what's passed in to the -# '-a/--archive' option. -BUILD_ARCHIVE_TYPE = '' - -# The selected archive to bisect. -BUILD_ARCHIVE_DIR = '' - -# The location of the builds. -BUILD_ARCHIVE_URL = '/%d/' - -# Name of the build archive. -BUILD_ZIP_NAME = '' - -# Directory name inside the archive. -BUILD_DIR_NAME = '' - -# Name of the executable. -BUILD_EXE_NAME = '' - -# URL to the ViewVC commit page. -BUILD_VIEWVC_URL = 'http://src.chromium.org/viewvc/chrome?view=rev&revision=%d' - -# Changelogs URL -CHANGELOG_URL = 'http://build.chromium.org/buildbot/' \ - 'perf/dashboard/ui/changelog.html?url=/trunk/src&range=%d:%d' - -############################################################################### - -import math -import optparse -import os -import pipes -import re -import shutil import sys -import tempfile -import urllib -import zipfile - - -def UnzipFilenameToDir(filename, dir): - """Unzip |filename| to directory |dir|.""" - zf = zipfile.ZipFile(filename) - # Make base. - pushd = os.getcwd() - try: - if not os.path.isdir(dir): - os.mkdir(dir) - os.chdir(dir) - # Extract files. - for info in zf.infolist(): - name = info.filename - if name.endswith('/'): # dir - if not os.path.isdir(name): - os.makedirs(name) - else: # file - dir = os.path.dirname(name) - if not os.path.isdir(dir): - os.makedirs(dir) - out = open(name, 'wb') - out.write(zf.read(name)) - out.close() - # Set permissions. Permission info in external_attr is shifted 16 bits. - os.chmod(name, info.external_attr >> 16L) - os.chdir(pushd) - except Exception, e: - print >>sys.stderr, e - sys.exit(1) - - -def SetArchiveVars(archive): - """Set a bunch of global variables appropriate for the specified archive.""" - global BUILD_ARCHIVE_TYPE - global BUILD_ARCHIVE_DIR - global BUILD_ZIP_NAME - global BUILD_DIR_NAME - global BUILD_EXE_NAME - global BUILD_BASE_URL - - BUILD_ARCHIVE_TYPE = archive - BUILD_ARCHIVE_DIR = 'chromium-rel-' + BUILD_ARCHIVE_TYPE - - if BUILD_ARCHIVE_TYPE in ('linux', 'linux-64', 'linux-chromiumos'): - BUILD_ZIP_NAME = 'chrome-linux.zip' - BUILD_DIR_NAME = 'chrome-linux' - BUILD_EXE_NAME = 'chrome' - elif BUILD_ARCHIVE_TYPE in ('mac'): - BUILD_ZIP_NAME = 'chrome-mac.zip' - BUILD_DIR_NAME = 'chrome-mac' - BUILD_EXE_NAME = 'Chromium.app/Contents/MacOS/Chromium' - elif BUILD_ARCHIVE_TYPE in ('xp'): - BUILD_ZIP_NAME = 'chrome-win32.zip' - BUILD_DIR_NAME = 'chrome-win32' - BUILD_EXE_NAME = 'chrome.exe' - - BUILD_BASE_URL += BUILD_ARCHIVE_DIR - -def ParseDirectoryIndex(url): - """Parses the HTML directory listing into a list of revision numbers.""" - handle = urllib.urlopen(url) - dirindex = handle.read() - handle.close() - return re.findall(r'<a href="([0-9]*)/">\1/</a>', dirindex) - -def GetRevList(good, bad): - """Gets the list of revision numbers between |good| and |bad|.""" - # Download the main revlist. - revlist = ParseDirectoryIndex(BUILD_BASE_URL) - revlist = map(int, revlist) - revlist = filter(lambda r: range(good, bad).__contains__(int(r)), revlist) - revlist.sort() - return revlist - -def TryRevision(rev, profile, args): - """Downloads revision |rev|, unzips it, and opens it for the user to test. - |profile| is the profile to use.""" - # Do this in a temp dir so we don't collide with user files. - cwd = os.getcwd() - tempdir = tempfile.mkdtemp(prefix='bisect_tmp') - os.chdir(tempdir) - - # Download the file. - download_url = BUILD_BASE_URL + (BUILD_ARCHIVE_URL % rev) + BUILD_ZIP_NAME - try: - print 'Fetching ' + download_url - urllib.urlretrieve(download_url, BUILD_ZIP_NAME) - except Exception, e: - print('Could not retrieve the download. Sorry.') - sys.exit(-1) - - # Unzip the file. - print 'Unziping ...' - UnzipFilenameToDir(BUILD_ZIP_NAME, os.curdir) - - # Tell the system to open the app. - args = ['--user-data-dir=%s' % profile] + args - flags = ' '.join(map(pipes.quote, args)) - exe = os.path.join(os.getcwd(), BUILD_DIR_NAME, BUILD_EXE_NAME) - cmd = '%s %s' % (exe, flags) - print 'Running %s' % cmd - os.system(cmd) - - os.chdir(cwd) - print 'Cleaning temp dir ...' - try: - shutil.rmtree(tempdir, True) - except Exception, e: - pass - - -def AskIsGoodBuild(rev): - """Ask the user whether build |rev| is good or bad.""" - # Loop until we get a response that we can parse. - while True: - response = raw_input('\nBuild %d is [(g)ood/(b)ad]: ' % int(rev)) - if response and response in ('g', 'b'): - return response == 'g' - -def main(): - usage = ('%prog [options] [-- chromium-options]\n' - 'Perform binary search on the snapshot builds.\n' - '\n' - 'Tip: add "-- --no-first-run" to bypass the first run prompts.') - parser = optparse.OptionParser(usage=usage) - # Strangely, the default help output doesn't include the choice list. - choices = ['mac', 'xp', 'linux', 'linux-64', 'linux-chromiumos'] - parser.add_option('-a', '--archive', - choices = choices, - help = 'The buildbot archive to bisect [%s].' % - '|'.join(choices)) - parser.add_option('-b', '--bad', type = 'int', - help = 'The bad revision to bisect to.') - parser.add_option('-g', '--good', type = 'int', - help = 'The last known good revision to bisect from.') - parser.add_option('-p', '--profile', '--user-data-dir', type = 'str', - help = 'Profile to use; this will not reset every run. ' + - 'Defaults to a clean profile.') - (opts, args) = parser.parse_args() - - if opts.archive is None: - print 'Error: missing required parameter: --archive' - print - parser.print_help() - return 1 - - if opts.bad and opts.good and (opts.good > opts.bad): - print ('The good revision (%d) must precede the bad revision (%d).\n' % - (opts.good, opts.bad)) - parser.print_help() - return 1 - - SetArchiveVars(opts.archive) - - # Pick a starting point, try to get HEAD for this. - if opts.bad: - bad_rev = opts.bad - else: - bad_rev = 0 - try: - # Location of the latest build revision number - BUILD_LATEST_URL = '%s/LATEST' % (BUILD_BASE_URL) - nh = urllib.urlopen(BUILD_LATEST_URL) - latest = int(nh.read()) - nh.close() - bad_rev = raw_input('Bad revision [HEAD:%d]: ' % latest) - if (bad_rev == ''): - bad_rev = latest - bad_rev = int(bad_rev) - except Exception, e: - print('Could not determine latest revision. This could be bad...') - bad_rev = int(raw_input('Bad revision: ')) - - # Find out when we were good. - if opts.good: - good_rev = opts.good - else: - good_rev = 0 - try: - good_rev = int(raw_input('Last known good [0]: ')) - except Exception, e: - pass - - # Get a list of revisions to bisect across. - revlist = GetRevList(good_rev, bad_rev) - if len(revlist) < 2: # Don't have enough builds to bisect - print 'We don\'t have enough builds to bisect. revlist: %s' % revlist - sys.exit(1) - - # If we don't have a |good_rev|, set it to be the first revision possible. - if good_rev == 0: - good_rev = revlist[0] - - # These are indexes of |revlist|. - good = 0 - bad = len(revlist) - 1 - last_known_good_rev = revlist[good] - - # Binary search time! - while good < bad: - candidates = revlist[good:bad] - num_poss = len(candidates) - if num_poss > 10: - print('%d candidates. %d tries left.' % - (num_poss, round(math.log(num_poss, 2)))) - else: - print('Candidates: %s' % revlist[good:bad]) - - # Cut the problem in half... - test = int((bad - good) / 2) + good - test_rev = revlist[test] - - # Let the user give this rev a spin (in her own profile, if she wants). - profile = opts.profile - if not profile: - profile = 'profile' # In a temp dir. - TryRevision(test_rev, profile, args) - if AskIsGoodBuild(test_rev): - last_known_good_rev = revlist[good] - good = test + 1 - else: - bad = test - # We're done. Let the user know the results in an official manner. - print('You are probably looking for build %d.' % revlist[bad]) - print('CHANGELOG URL:') - print(CHANGELOG_URL % (last_known_good_rev, revlist[bad])) - print('Built at revision:') - print(BUILD_VIEWVC_URL % revlist[bad]) +print "This script has been moved to tools/bisect-builds.py." +print "Please update any docs you're working from!" -if __name__ == '__main__': - sys.exit(main()) +sys.exit(1) |