v8/tools/push-to-trunk/auto_roll.py

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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 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 DetectLastPush(Step):
MESSAGE = "Detect commit ID of the last push to trunk."
def RunStep(self):
push_hash = self.FindLastTrunkPush(
branch="origin/candidates", include_patches=True)
self["last_push"] = self.GetCommitPositionNumber(push_hash)
class DetectLastRoll(Step):
MESSAGE = "Detect commit ID of the last Chromium roll."
def RunStep(self):
# 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")))
last_roll = self.GetCommitPositionNumber(vars['v8_revision'])
# FIXME(machenbach): When rolling from bleeding edge and from trunk there
# be different commit numbers here. Better use version?
if int(last_roll) >= int(self["last_push"]):
print("There is no newer v8 revision than the one in Chromium (%s)."
% last_roll)
return True
class CheckClusterFuzz(Step):
MESSAGE = "Check ClusterFuzz api for new problems."
def RunStep(self):
if not os.path.exists(self.Config("CLUSTERFUZZ_API_KEY_FILE")):
print "Skipping ClusterFuzz check. No api key file found."
return False
api_key = FileToText(self.Config("CLUSTERFUZZ_API_KEY_FILE"))
# Check for open, reproducible issues that have no associated bug.
result = self._side_effect_handler.ReadClusterFuzzAPI(
api_key, job_type="linux_asan_d8_dbg", reproducible="True",
open="True", bug_information="",
revision_greater_or_equal=str(self["last_push"]))
if result:
print "Stop due to pending ClusterFuzz issues."
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,
"--use-commit-queue",
]
if self._options.sheriff:
args.extend([
"--sheriff", "--googlers-mapping", self._options.googlers_mapping])
if self._options.dry_run:
args.extend(["--dry-run"])
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("--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",
"CLUSTERFUZZ_API_KEY_FILE": ".cf_api_key",
}
def _Steps(self):
return [
CheckActiveRoll,
DetectLastPush,
DetectLastRoll,
CheckClusterFuzz,
RollChromium,
]
if __name__ == "__main__": # pragma: no cover
sys.exit(AutoRoll().Run())