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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")
class Preparation(Step):
MESSAGE = "Preparation."
def RunStep(self):
# Update v8 remote tracking branches.
self.GitFetchOrigin()
class DetectLastPush(Step):
MESSAGE = "Detect commit ID of last release."
def RunStep(self):
# The revision that should be rolled.
self["last_push"] = self._options.last_push or self.GetLatestRelease()
self["push_title"] = self.GitLog(n=1, format="%s",
git_hash=self["last_push"])
# The master revision this release is based on.
self["push_base"] = self.GetLatestReleaseBase()
# FIXME(machenbach): Manually specifying a revision doesn't work at the
# moment. Needs more complicated logic to find the correct push_base above.
# Maybe delete that parameter entirely?
assert not self._options.last_push
# Determine the master revision of the last roll.
version = self.GetVersionTag(self._options.last_roll)
assert version
self["last_rolled_base"] = self.GetLatestReleaseBase(version=version)
assert self["last_rolled_base"]
class SwitchChromium(Step):
MESSAGE = "Switch to Chromium checkout."
def RunStep(self):
self["v8_path"] = os.getcwd()
cwd = self._options.chromium
os.chdir(cwd)
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):
self.GitCheckout("master", cwd=self._options.chromium)
self.Command("gclient", "sync --nohooks", cwd=self._options.chromium)
self.GitPull(cwd=self._options.chromium)
# Update v8 remotes.
self.GitFetchOrigin()
self.GitCreateBranch("v8-roll-%s" % self["last_push"],
cwd=self._options.chromium)
class UploadCL(Step):
MESSAGE = "Create and upload CL."
def RunStep(self):
# Patch DEPS file.
if self.Command(
"roll-dep", "v8 %s" % self["last_push"],
cwd=self._options.chromium) is None:
self.Die("Failed to create deps for %s" % self["last_push"])
message = []
message.append("Update V8 to %s." % self["push_title"].lower())
message.append(
ROLL_SUMMARY % (self["last_rolled_base"][:8], self["push_base"][:8]))
if self["sheriff"]:
message.append("Please reply to the V8 sheriff %s in case of problems."
% self["sheriff"])
message.append("TBR=%s" % self._options.reviewer)
self.GitCommit("\n\n".join(message),
author=self._options.author,
cwd=self._options.chromium)
if not self._options.dry_run:
self.GitUpload(author=self._options.author,
force=True,
cq=self._options.use_commit_queue,
cwd=self._options.chromium)
print "CL uploaded."
else:
self.GitCheckout("master", cwd=self._options.chromium)
self.GitDeleteBranch("v8-roll-%s" % self["last_push"],
cwd=self._options.chromium)
print "Dry run - don't upload."
# TODO(machenbach): Make this obsolete. We are only in the chromium chechout
# for the initial .git check.
class SwitchV8(Step):
MESSAGE = "Returning to V8 checkout."
def RunStep(self):
os.chdir(self["v8_path"])
class CleanUp(Step):
MESSAGE = "Done!"
def RunStep(self):
print("Congratulations, you have successfully rolled %s into "
"Chromium. Please don't forget to update the v8rel spreadsheet."
% self["last_push"])
# 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("-l", "--last-push",
help="The git commit ID of the last candidates push.")
parser.add_argument("--last-roll", required=True,
help="The git commit ID of the last rolled version.")
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
return True
def _Config(self):
return {
"PERSISTFILE_BASENAME": "/tmp/v8-chromium-roll-tempfile",
}
def _Steps(self):
return [
Preparation,
DetectLastPush,
DetermineV8Sheriff,
SwitchChromium,
UpdateChromiumCheckout,
UploadCL,
SwitchV8,
CleanUp,
]
if __name__ == "__main__": # pragma: no cover
sys.exit(ChromiumRoll().Run())
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