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#!/usr/bin/env python
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
# The Original Code is Mozilla Corporation Code.
# The Initial Developer of the Original Code is
# Heather Arthur
# Portions created by the Initial Developer are Copyright (C) 2009
# the Initial Developer. All Rights Reserved.
# Contributor(s): Heather Arthur <>
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
# ***** END LICENSE BLOCK *****
import datetime
import sys
import subprocess
from optparse import OptionParser
from runnightly import NightlyRunner
from utils import strsplit, get_date, increment_day
class Bisector(object):
def __init__(self, runner, appname="firefox"):
self.runner = runner
self.appname = appname
self.goodAppInfo = ''
self.badAppInfo = ''
self.currDate = ''
def findRegressionChset(self, goodDate, badDate):
#Uses mozcommitbuilder to bisect on changesets
#Only needed if they want to bisect, so we'll put the dependency here.
from mozcommitbuilder import builder
commitBuilder = builder.Builder()
#One of these won't be set, so we need to download one more nightly and set it
if self.goodAppInfo:
lastGoodChangeset = self.goodAppInfo[1]
#Download and get the info
missingNightly = NightlyRunner()
lastGoodChangeset = missingNightly.getAppInfo()[1]
if self.badAppInfo:
firstBadChangeset = self.badAppInfo[1]
#Download and get the info
missingNightly = NightlyRunner()
firstBadChangeset = missingNightly.getAppInfo()[1]
print "\n Narrowed changeset range from " + lastGoodChangeset + " to " + firstBadChangeset +"\n"
print "Time to do some bisecting and building!"
commitBuilder.bisect(lastGoodChangeset, firstBadChangeset)
def build(self, goodDate, badDate):
if self.appname == "firefox":
print "Building changesets:"
self.findRegressionChset(goodDate, badDate)
print "Bisection on anything other than firefox is not currently supported."
def printRange(self, goodDate, badDate):
print "\n\nLast good nightly: " + str(goodDate) + "\nFirst bad nightly: " + str(badDate) + "\n"
print "Pushlog:\n" + self.getPushlogUrl(goodDate, badDate) + "\n"
verdict = raw_input("do you want to bisect further by fetching the repository and building? (y or n) ")
if verdict == "y":, badDate)
def bisect(self, goodDate, badDate, skips=0):
midDate = goodDate + (badDate - goodDate) / 2
midDate += datetime.timedelta(days=skips)
if midDate == badDate or midDate == goodDate:
self.printRange(goodDate, badDate)
# run the nightly from that date
dest = self.runner.start(midDate)
while not dest:
midDate += datetime.timedelta(days=1)
if midDate == badDate:
self.printRange(goodDate, badDate)
dest = self.runner.start(midDate)
self.prevDate = self.currDate
self.currDate = midDate
# wait for them to call it 'good' or 'bad'
verdict = ""
options = ['good','g','bad','b','skip','s','retry','r', 'exit']
while verdict not in options:
verdict = raw_input("Was this nightly good, bad, or broken? (type 'good', 'bad', 'skip', 'retry', or 'exit' and press Enter): ")
if verdict == 'good' or verdict == 'g':
self.goodAppInfo = self.runner.getAppInfo()
self.bisect(midDate, badDate)
elif verdict == 'bad' or verdict == 'b':
self.badAppInfo = self.runner.getAppInfo()
self.bisect(goodDate, midDate)
elif verdict == 'skip' or verdict == 's':
#skip -- go 1 day further down
self.bisect(goodDate, badDate, skips=skips+1)
elif verdict == 'exit':
goodDateString = '%04d-%02d-%02d' % (goodDate.year, goodDate.month,
badDateString = '%04d-%02d-%02d' % (badDate.year, badDate.month,
print 'Newest known good nightly: %s' % goodDateString
print 'Oldest known bad nightly: %s' % badDateString
print 'To resume, run:'
print 'mozregression --good=%s --bad=%s' % (goodDateString, badDateString)
#retry -- since we're just calling ourselves with the same parameters, it does the same thing again
self.bisect(goodDate, badDate)
def getPushlogUrl(self, goodDate, badDate):
if not self.goodAppInfo or not self.badAppInfo:
if self.goodAppInfo:
(repo, chset) = self.goodAppInfo
elif self.badAppInfo:
(repo, chset) = self.badAppInfo
repo = ''
return repo + "/pushloghtml?startdate=" + str(goodDate) + "&enddate=" + str(badDate)
(repo, good_chset) = self.goodAppInfo
(repo, bad_chset) = self.badAppInfo
return repo + "/pushloghtml?fromchange=" + good_chset + "&tochange=" + bad_chset
def cli():
parser = OptionParser()
parser.add_option("-b", "--bad", dest="bad_date",help="first known bad nightly build, default is today",
metavar="YYYY-MM-DD", default=str(
parser.add_option("-g", "--good", dest="good_date",help="last known good nightly build",
metavar="YYYY-MM-DD", default=None)
parser.add_option("-e", "--addons", dest="addons",help="list of addons to install", metavar="PATH1,PATH2", default="")
parser.add_option("-p", "--profile", dest="profile", help="profile to use with nightlies", metavar="PATH")
parser.add_option("-a", "--args", dest="cmdargs", help="command-line arguments to pass to the application",
metavar="ARG1,ARG2", default="")
parser.add_option("-n", "--app", dest="app", help="application name (firefox, fennec or thunderbird)",
metavar="[firefox|fennec|thunderbird]", default="firefox")
parser.add_option("-r", "--repo", dest="repo_name", help="repository name on",
metavar="[tracemonkey|mozilla-1.9.2]", default=None)
(options, args) = parser.parse_args()
addons = strsplit(options.addons, ",")
cmdargs = strsplit(options.cmdargs, ",")
if not options.good_date:
options.good_date = "2009-01-01"
print "No 'good' date specified, using " + options.good_date
runner = NightlyRunner(, addons=addons, repo_name=options.repo_name,
profile=options.profile, cmdargs=cmdargs)
bisector = Bisector(runner,
bisector.bisect(get_date(options.good_date), get_date(options.bad_date))
if __name__ == "__main__":
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