#!/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. # for py2/py3 compatibility from __future__ import print_function 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://v8.dev/docs/triage-issues Please close rolling in case of a roll revert: https://v8-roll.appspot.com/ This only works with a Google account. CQ_INCLUDE_TRYBOTS=luci.chromium.try:linux-blink-rel CQ_INCLUDE_TRYBOTS=luci.chromium.try:linux_optional_gpu_tests_rel CQ_INCLUDE_TRYBOTS=luci.chromium.try:mac_optional_gpu_tests_rel CQ_INCLUDE_TRYBOTS=luci.chromium.try:win_optional_gpu_tests_rel CQ_INCLUDE_TRYBOTS=luci.chromium.try:android_optional_gpu_tests_rel""") class Preparation(Step): MESSAGE = "Preparation." def RunStep(self): self['json_output']['monitoring_state'] = 'preparation' # Update v8 remote tracking branches. self.GitFetchOrigin() self.Git("fetch origin +refs/tags/*:refs/tags/*") class DetectLastRoll(Step): MESSAGE = "Detect commit ID of the last Chromium roll." def RunStep(self): self['json_output']['monitoring_state'] = 'detect_last_roll' self["last_roll"] = self._options.last_roll if not self["last_roll"]: # Interpret the DEPS file to retrieve the v8 revision. # TODO(machenbach): This should be part or the setdep 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'] self["last_version"] = self.GetVersionTag(self["last_roll"]) assert self["last_version"], "The last rolled v8 revision is not tagged." class DetectRevisionToRoll(Step): MESSAGE = "Detect commit ID of the V8 revision to roll." def RunStep(self): self['json_output']['monitoring_state'] = 'detect_revision' self["roll"] = self._options.revision if self["roll"]: # If the revision was passed on the cmd line, continue script execution # in the next step. return False # 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." # 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: version = self.GetVersionTag(revision) assert version, "Internal error. All recent releases should have a tag" if SortingKey(self["last_version"]) < SortingKey(version): self["roll"] = revision break else: print("There is no newer v8 revision than the one in Chromium (%s)." % self["last_roll"]) self['json_output']['monitoring_state'] = 'up_to_date' return True class PrepareRollCandidate(Step): MESSAGE = "Robustness checks of the roll candidate." def RunStep(self): self['json_output']['monitoring_state'] = 'prepare_candidate' self["roll_title"] = self.GitLog(n=1, format="%s", git_hash=self["roll"]) # Make sure the last roll and the roll candidate are releases. version = self.GetVersionTag(self["roll"]) assert version, "The revision to roll is not tagged." version = self.GetVersionTag(self["last_roll"]) assert version, "The revision used as last roll is not tagged." class SwitchChromium(Step): MESSAGE = "Switch to Chromium checkout." def RunStep(self): self['json_output']['monitoring_state'] = 'switch_chromium' 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): self['json_output']['monitoring_state'] = 'update_chromium' cwd = self._options.chromium self.GitCheckout("master", cwd=cwd) self.DeleteBranch("work-branch", 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): self['json_output']['monitoring_state'] = 'upload' cwd = self._options.chromium # Patch DEPS file. if self.Command("gclient", "setdep -r src/v8@%s" % self["roll"], cwd=cwd) is None: self.Die("Failed to create deps for %s" % self["roll"]) message = [] message.append("Update V8 to %s." % self["roll_title"].lower()) message.append( ROLL_SUMMARY % (self["last_roll"][:8], self["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(force=True, bypass_hooks=True, cq=self._options.use_commit_queue, cq_dry_run=self._options.use_dry_run, 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): self['json_output']['monitoring_state'] = 'success' print("Congratulations, you have successfully rolled %s into " "Chromium." % self["roll"]) # Clean up all temporary files. Command("rm", "-f %s*" % self._config["PERSISTFILE_BASENAME"]) 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("--last-roll", help="The git commit ID of the last rolled version. " "Auto-detected if not specified.") parser.add_argument("--max-age", default=7, type=int, help="Maximum age in days of the latest release.") parser.add_argument("--revision", help="Revision to roll. Auto-detected if not " "specified."), parser.add_argument("--roll", help="Deprecated.", default=True, action="store_true") group = parser.add_mutually_exclusive_group() group.add_argument("--use-commit-queue", help="Trigger the CQ full run on upload.", default=False, action="store_true") group.add_argument("--use-dry-run", help="Trigger the CQ dry run on upload.", default=True, 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, DetectLastRoll, DetectRevisionToRoll, PrepareRollCandidate, SwitchChromium, UpdateChromiumCheckout, UploadCL, CleanUp, ] if __name__ == "__main__": # pragma: no cover sys.exit(AutoRoll().Run())