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#!/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 os
import sys
from common_includes import *
ROLL_SUMMARY = ("Summary of changes available at:\n"
"https://chromium.googlesource.com/v8/v8/+log/%s..%s")
ISSUE_MSG = (
"""Please follow these instructions for assigning/CC'ing issues:
https://code.google.com/p/v8-wiki/wiki/TriagingIssues""")
class Preparation(Step):
MESSAGE = "Preparation."
def RunStep(self):
# Update v8 remote tracking branches.
self.GitFetchOrigin()
self.Git("fetch origin +refs/tags/*:refs/tags/*")
class PrepareRollCandidate(Step):
MESSAGE = "Robustness checks of the roll candidate."
def RunStep(self):
self["roll_title"] = self.GitLog(n=1, format="%s",
git_hash=self._options.roll)
# Make sure the last roll and the roll candidate are releases.
version = self.GetVersionTag(self._options.roll)
assert version, "The revision to roll is not tagged."
version = self.GetVersionTag(self._options.last_roll)
assert version, "The revision used as last roll is not tagged."
class SwitchChromium(Step):
MESSAGE = "Switch to Chromium checkout."
def RunStep(self):
cwd = self._options.chromium
self.InitialEnvironmentChecks(cwd)
# Check for a clean workdir.
if not self.GitIsWorkdirClean(cwd=cwd): # pragma: no cover
self.Die("Workspace is not clean. Please commit or undo your changes.")
# Assert that the DEPS file is there.
if not os.path.exists(os.path.join(cwd, "DEPS")): # pragma: no cover
self.Die("DEPS file not present.")
class UpdateChromiumCheckout(Step):
MESSAGE = "Update the checkout and create a new branch."
def RunStep(self):
cwd = self._options.chromium
self.GitCheckout("master", cwd=cwd)
self.DeleteBranch("work-branch", cwd=cwd)
self.Command("gclient", "sync --nohooks", cwd=cwd)
self.GitPull(cwd=cwd)
# Update v8 remotes.
self.GitFetchOrigin()
self.GitCreateBranch("work-branch", cwd=cwd)
class UploadCL(Step):
MESSAGE = "Create and upload CL."
def RunStep(self):
cwd = self._options.chromium
# Patch DEPS file.
if self.Command("roll-dep", "v8 %s" % self._options.roll, cwd=cwd) is None:
self.Die("Failed to create deps for %s" % self._options.roll)
message = []
message.append("Update V8 to %s." % self["roll_title"].lower())
message.append(
ROLL_SUMMARY % (self._options.last_roll[:8], self._options.roll[:8]))
message.append(ISSUE_MSG)
message.append("TBR=%s" % self._options.reviewer)
self.GitCommit("\n\n".join(message), author=self._options.author, cwd=cwd)
if not self._options.dry_run:
self.GitUpload(author=self._options.author,
force=True,
cq=self._options.use_commit_queue,
cwd=cwd)
print "CL uploaded."
else:
print "Dry run - don't upload."
self.GitCheckout("master", cwd=cwd)
self.GitDeleteBranch("work-branch", cwd=cwd)
class CleanUp(Step):
MESSAGE = "Done!"
def RunStep(self):
print("Congratulations, you have successfully rolled %s into "
"Chromium."
% self._options.roll)
# Clean up all temporary files.
Command("rm", "-f %s*" % self._config["PERSISTFILE_BASENAME"])
class ChromiumRoll(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("--last-roll", required=True,
help="The git commit ID of the last rolled version.")
parser.add_argument("roll", nargs=1, help="Revision to roll."),
parser.add_argument("--use-commit-queue",
help="Check the CQ bit on upload.",
default=False, action="store_true")
def _ProcessOptions(self, options): # pragma: no cover
if not options.author or not options.reviewer:
print "A reviewer (-r) and an author (-a) are required."
return False
options.requires_editor = False
options.force = True
options.manual = False
options.roll = options.roll[0]
return True
def _Config(self):
return {
"PERSISTFILE_BASENAME": "/tmp/v8-chromium-roll-tempfile",
}
def _Steps(self):
return [
Preparation,
PrepareRollCandidate,
DetermineV8Sheriff,
SwitchChromium,
UpdateChromiumCheckout,
UploadCL,
CleanUp,
]
if __name__ == "__main__": # pragma: no cover
sys.exit(ChromiumRoll().Run())
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