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#!/usr/bin/env python
# Copyright 2013 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import json
import optparse
import os
import re
import sys
import urllib
from common_includes import *
import push_to_trunk
from push_to_trunk import PushToTrunkOptions
from push_to_trunk import RunPushToTrunk
SETTINGS_LOCATION = "SETTINGS_LOCATION"
CONFIG = {
PERSISTFILE_BASENAME: "/tmp/v8-auto-roll-tempfile",
DOT_GIT_LOCATION: ".git",
SETTINGS_LOCATION: "~/.auto-roll",
}
class AutoRollOptions(CommonOptions):
def __init__(self, options):
super(AutoRollOptions, self).__init__(options)
self.requires_editor = False
self.status_password = options.status_password
self.c = options.c
self.push = getattr(options, 'push', False)
self.author = getattr(options, 'a', None)
class Preparation(Step):
MESSAGE = "Preparation."
def RunStep(self):
self.InitialEnvironmentChecks()
self.CommonPrepare()
class CheckAutoRollSettings(Step):
MESSAGE = "Checking settings file."
def RunStep(self):
settings_file = os.path.realpath(self.Config(SETTINGS_LOCATION))
if os.path.exists(settings_file):
settings_dict = json.loads(FileToText(settings_file))
if settings_dict.get("enable_auto_roll") is False:
self.Die("Push to trunk disabled by auto-roll settings file: %s"
% settings_file)
class CheckTreeStatus(Step):
MESSAGE = "Checking v8 tree status message."
def RunStep(self):
status_url = "https://v8-status.appspot.com/current?format=json"
status_json = self.ReadURL(status_url, wait_plan=[5, 20, 300, 300])
message = json.loads(status_json)["message"]
if re.search(r"nopush|no push", message, flags=re.I):
self.Die("Push to trunk disabled by tree state: %s" % message)
self.Persist("tree_message", message)
class FetchLatestRevision(Step):
MESSAGE = "Fetching latest V8 revision."
def RunStep(self):
log = self.Git("svn log -1 --oneline").strip()
match = re.match(r"^r(\d+) ", log)
if not match:
self.Die("Could not extract current svn revision from log.")
self.Persist("latest", match.group(1))
class CheckLastPush(Step):
MESSAGE = "Checking last V8 push to trunk."
def RunStep(self):
self.RestoreIfUnset("latest")
log = self.Git("svn log -1 --oneline ChangeLog").strip()
match = re.match(r"^r(\d+) \| Prepare push to trunk", log)
if match:
latest = int(self._state["latest"])
last_push = int(match.group(1))
# TODO(machebach): This metric counts all revisions. It could be
# improved by counting only the revisions on bleeding_edge.
if latest - last_push < 10:
# This makes sure the script doesn't push twice in a row when the cron
# job retries several times.
self.Die("Last push too recently: %d" % last_push)
class FetchLKGR(Step):
MESSAGE = "Fetching V8 LKGR."
def RunStep(self):
lkgr_url = "https://v8-status.appspot.com/lkgr"
# Retry several times since app engine might have issues.
self.Persist("lkgr", self.ReadURL(lkgr_url, wait_plan=[5, 20, 300, 300]))
class PushToTrunk(Step):
MESSAGE = "Pushing to trunk if possible."
def PushTreeStatus(self, message):
if not self._options.status_password:
print "Skipping tree status update without password file."
return
params = {
"message": message,
"username": "v8-auto-roll@chromium.org",
"password": FileToText(self._options.status_password).strip(),
}
params = urllib.urlencode(params)
print "Pushing tree status: '%s'" % message
self.ReadURL("https://v8-status.appspot.com/status", params,
wait_plan=[5, 20])
def RunStep(self):
self.RestoreIfUnset("latest")
self.RestoreIfUnset("lkgr")
self.RestoreIfUnset("tree_message")
latest = int(self._state["latest"])
lkgr = int(self._state["lkgr"])
if latest == lkgr:
print "ToT (r%d) is clean. Pushing to trunk." % latest
self.PushTreeStatus("Tree is closed (preparing to push)")
# TODO(machenbach): Update the script before calling it.
try:
if self._options.push:
self._side_effect_handler.Call(
RunPushToTrunk,
push_to_trunk.CONFIG,
PushToTrunkOptions.MakeForcedOptions(self._options.author,
self._options.reviewer,
self._options.c),
self._side_effect_handler)
finally:
self.PushTreeStatus(self._state["tree_message"])
else:
print("ToT (r%d) is ahead of the LKGR (r%d). Skipping push to trunk."
% (latest, lkgr))
def RunAutoRoll(config,
options,
side_effect_handler=DEFAULT_SIDE_EFFECT_HANDLER):
step_classes = [
Preparation,
CheckAutoRollSettings,
CheckTreeStatus,
FetchLatestRevision,
CheckLastPush,
FetchLKGR,
PushToTrunk,
]
RunScript(step_classes, config, options, side_effect_handler)
def BuildOptions():
result = optparse.OptionParser()
result.add_option("-a", "--author", dest="a",
help=("Specify the author email used for rietveld."))
result.add_option("-c", "--chromium", dest="c",
help=("Specify the path to your Chromium src/ "
"directory to automate the V8 roll."))
result.add_option("-p", "--push",
help="Push to trunk if possible. Dry run if unspecified.",
default=False, action="store_true")
result.add_option("-r", "--reviewer",
help=("Specify the account name to be used for reviews."))
result.add_option("-s", "--step", dest="s",
help="Specify the step where to start work. Default: 0.",
default=0, type="int")
result.add_option("--status-password",
help="A file with the password to the status app.")
return result
def Main():
parser = BuildOptions()
(options, args) = parser.parse_args()
if not options.a or not options.c or not options.reviewer:
print "You need to specify author, chromium src location and reviewer."
parser.print_help()
return 1
RunAutoRoll(CONFIG, AutoRollOptions(options))
if __name__ == "__main__":
sys.exit(Main())
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