v8/tools/release/auto_roll.py
machenbach a6a0bd8846 Make auto-roller roll recent release based on timestamp.
Before this change, out of two versions 4.2.13.1 and
4.2.14, the latter would have been considered the newest.
Now, the timestamp of the commit determines the age, which
allows to roll a patched version first. The auto-roller
will only roll forward (i.e. there needs to be a commit
range between the last roll and the new candidate).

Additionally, this CL does some cleanups:
- Use the sheriff detection mechanism in the auto-roller.
- Require the roll revision parameter in the chromium_roll
script to avoid redundancy. The auto_roll script determines
that revision automatically.
- Simplify the revision summary in the commit message. The
summary will now show last_roll..new_roll, which e.g.
includes the version change CL. It'll now show useful
information for cherry-picks, which it didn't before.
- Remove unused clusterfuzz check. That check is part of the
release process script.

TBR=tandrii@chromium.org
NOTRY=true
TEST=./script_test.py
TEST=./tools/release/chromium_roll.py --dry-run --sheriff -c ~/tmp/chromium/src --last-roll 55b9049ea3978a589d8db2aa191d21222eef737f fc263505535a175c8efa18f4c787bd92a1d1ab3d --use-commit-queue -r me -a you

Review URL: https://codereview.chromium.org/977903002

Cr-Commit-Position: refs/heads/master@{#27009}
2015-03-05 10:50:08 +00:00

133 lines
4.0 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright 2014 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import argparse
import json
import os
import sys
import urllib
from common_includes import *
import chromium_roll
class CheckActiveRoll(Step):
MESSAGE = "Check active roll."
@staticmethod
def ContainsChromiumRoll(changes):
for change in changes:
if change["subject"].startswith("Update V8 to"):
return True
return False
def RunStep(self):
params = {
"closed": 3,
"owner": self._options.author,
"limit": 30,
"format": "json",
}
params = urllib.urlencode(params)
search_url = "https://codereview.chromium.org/search"
result = self.ReadURL(search_url, params, wait_plan=[5, 20])
if self.ContainsChromiumRoll(json.loads(result)["results"]):
print "Stop due to existing Chromium roll."
return True
class DetectLastRoll(Step):
MESSAGE = "Detect commit ID of the last Chromium roll."
def RunStep(self):
# The revision that should be rolled. Check for the latest of the most
# recent releases based on commit timestamp.
revisions = self.GetRecentReleases(
max_age=self._options.max_age * DAY_IN_SECONDS)
assert revisions, "Didn't find any recent release."
# Interpret the DEPS file to retrieve the v8 revision.
# TODO(machenbach): This should be part or the roll-deps api of
# depot_tools.
Var = lambda var: '%s'
exec(FileToText(os.path.join(self._options.chromium, "DEPS")))
# The revision rolled last.
self["last_roll"] = vars['v8_revision']
# There must be some progress between the last roll and the new candidate
# revision (i.e. we don't go backwards). The revisions are ordered newest
# to oldest. It is possible that the newest timestamp has no progress
# compared to the last roll, i.e. if the newest release is a cherry-pick
# on a release branch. Then we look further.
for revision in revisions:
commits = self.GitLog(
format="%H", git_hash="%s..%s" % (self["last_roll"], revision))
if commits:
self["roll"] = revision
break
else:
print("There is no newer v8 revision than the one in Chromium (%s)."
% self["last_roll"])
return True
class RollChromium(Step):
MESSAGE = "Roll V8 into Chromium."
def RunStep(self):
if self._options.roll:
args = [
"--author", self._options.author,
"--reviewer", self._options.reviewer,
"--chromium", self._options.chromium,
"--last-roll", self["last_roll"],
"--use-commit-queue",
self["roll"],
]
if self._options.sheriff:
args.append("--sheriff")
if self._options.dry_run:
args.append("--dry-run")
if self._options.work_dir:
args.extend(["--work-dir", self._options.work_dir])
self._side_effect_handler.Call(chromium_roll.ChromiumRoll().Run, args)
class AutoRoll(ScriptsBase):
def _PrepareOptions(self, parser):
parser.add_argument("-c", "--chromium", required=True,
help=("The path to your Chromium src/ "
"directory to automate the V8 roll."))
parser.add_argument("--max-age", default=3, type=int,
help="Maximum age in days of the latest release.")
parser.add_argument("--roll", help="Call Chromium roll script.",
default=False, action="store_true")
def _ProcessOptions(self, options): # pragma: no cover
if not options.reviewer:
print "A reviewer (-r) is required."
return False
if not options.author:
print "An author (-a) is required."
return False
return True
def _Config(self):
return {
"PERSISTFILE_BASENAME": "/tmp/v8-auto-roll-tempfile",
}
def _Steps(self):
return [
CheckActiveRoll,
DetectLastRoll,
RollChromium,
]
if __name__ == "__main__": # pragma: no cover
sys.exit(AutoRoll().Run())