blob: 4291c3820f5c4be2f588271deb1a4ade8b095e73 [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2015 The Chromium 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 collections
import logging
import os
import re
import subprocess
import sys
import time
SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
SRC_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
sys.path.insert(0, os.path.join(SRC_DIR, 'build'))
import find_depot_tools
import rietveld
import roll_dep_svn
from gclient import GClientKeywords
from third_party import upload
# Avoid depot_tools/third_party/ print verbose messages.
upload.verbosity = 0 # Errors only.
COMMIT_POSITION_RE = re.compile('^Cr-Original-Commit-Position: .*#([0-9]+).*$')
CL_ISSUE_RE = re.compile('^Issue number: ([0-9]+) \((.*)\)$')
RIETVELD_URL_RE = re.compile('^https?://(.*)/(.*)')
ROLL_BRANCH_NAME = 'special_webrtc_roll_branch'
# Use a shell for subcommands on Windows to get a PATH search.
IS_WIN = sys.platform.startswith('win')
WEBRTC_PATH = os.path.join('third_party', 'webrtc')
# Run these CQ trybots in addition to the default ones in infra/config/cq.cfg.
EXTRA_TRYBOTS = ('tryserver.chromium.linux:linux_chromium_archive_rel_ng;'
# Result codes from build/third_party/buildbot_8_4p1/buildbot/status/
# plus the -1 code which is used when there's no result yet.
-1: 'RUNNING',
5: 'RETRY',
SUCCESS_STATUS = (0, 1, 3)
FAILURE_STATUS = (2, 4, 5)
CommitInfo = collections.namedtuple('CommitInfo', ['commit_position',
CLInfo = collections.namedtuple('CLInfo', ['issue', 'url', 'rietveld_server'])
def _PosixPath(path):
"""Convert a possibly-Windows path to a posix-style path."""
(_, path) = os.path.splitdrive(path)
return path.replace(os.sep, '/')
def _ParseGitCommitPosition(description):
for line in reversed(description.splitlines()):
m = COMMIT_POSITION_RE.match(line.strip())
if m:
logging.error('Failed to parse svn revision id from:\n%s\n', description)
def _ParseGitCommitHash(description):
for line in description.splitlines():
if line.startswith('commit '):
return line.split()[1]
logging.error('Failed to parse git commit id from:\n%s\n', description)
return None
def _ParseDepsFile(filename):
with open(filename, 'rb') as f:
deps_content =
return _ParseDepsDict(deps_content)
def _ParseDepsDict(deps_content):
local_scope = {}
var = GClientKeywords.VarImpl({}, local_scope)
global_scope = {
'File': GClientKeywords.FileImpl,
'From': GClientKeywords.FromImpl,
'Var': var.Lookup,
'deps_os': {},
exec(deps_content, global_scope, local_scope)
return local_scope
def _WaitForTrybots(issue, rietveld_server):
"""Wait until all trybots have passed or at least one have failed.
An exit code of 0 if all trybots passed or non-zero otherwise.
assert type(issue) is int
print 'Trybot status for https://%s/%d:' % (rietveld_server, issue)
remote = rietveld.Rietveld('https://' + rietveld_server, None, None)
attempt = 0
max_tries = 60*60/TRYJOB_STATUS_SLEEP_SECONDS # Max one hour
while attempt < max_tries:
# Get patches for the issue so we can use the latest one.
data = remote.get_issue_properties(issue, messages=False)
patchsets = data['patchsets']
# Get trybot status for the latest patch set.
data = remote.get_patchset_properties(issue, patchsets[-1])
tryjob_results = data['try_job_results']
if len(tryjob_results) == 0:
logging.debug('No trybots have yet been triggered for https://%s/%d' ,
rietveld_server, issue)
if any(r['result'] in FAILURE_STATUS for r in tryjob_results):
logging.error('Found failing tryjobs (see above)')
return 1
if all(r['result'] in SUCCESS_STATUS for r in tryjob_results):
return 0
logging.debug('Waiting for %d seconds before next check...',
attempt += 1
def _PrintTrybotsStatus(tryjob_results):
status_to_name = {}
for trybot_result in tryjob_results:
status = TRYJOB_STATUS.get(trybot_result['result'], 'UNKNOWN')
status_to_name.setdefault(status, [])
print '\n========== TRYJOBS STATUS =========='
for status,name_list in status_to_name.iteritems():
print '%s: %s' % (status, ','.join(sorted(name_list)))
def _GenerateCLDescriptionCommand(webrtc_current, webrtc_new):
def GetChangeLogURL(git_repo_url, current_hash, new_hash):
return '%s/+log/%s..%s' % (git_repo_url, current_hash[0:7], new_hash[0:7])
webrtc_str = 'WebRTC %s:%s' % (webrtc_current.commit_position,
webrtc_changelog_url = GetChangeLogURL(webrtc_current.git_repo_url,
description = [ '-m', 'Roll ' + webrtc_str ]
description.extend(['-m', 'Changes: %s' % webrtc_changelog_url])
description.extend(['-m', 'TBR='])
description.extend(['-m', 'CQ_EXTRA_TRYBOTS=%s' % EXTRA_TRYBOTS])
return description
class AutoRoller(object):
def __init__(self, chromium_src):
self._chromium_src = chromium_src
def _RunCommand(self, command, working_dir=None, ignore_exit_code=False,
"""Runs a command and returns the stdout from that command.
If the command fails (exit code != 0), the function will exit the process.
working_dir = working_dir or self._chromium_src
logging.debug('cmd: %s cwd: %s', ' '.join(command), working_dir)
env = os.environ.copy()
if extra_env:
logging.debug('extra env: %s', extra_env)
p = subprocess.Popen(command, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, shell=IS_WIN, env=env,
cwd=working_dir, universal_newlines=True)
output =
if not ignore_exit_code and p.returncode != 0:
logging.error('Command failed: %s\n%s', str(command), output)
return output
def _GetCommitInfo(self, path_below_src, git_hash=None, git_repo_url=None):
working_dir = os.path.join(self._chromium_src, path_below_src)
self._RunCommand(['git', 'fetch', 'origin'], working_dir=working_dir)
revision_range = git_hash or 'origin'
ret = self._RunCommand(
['git', '--no-pager', 'log', revision_range, '--pretty=full', '-1'],
return CommitInfo(_ParseGitCommitPosition(ret), _ParseGitCommitHash(ret),
def _GetDepsCommitInfo(self, deps_dict, path_below_src):
entry = deps_dict['deps'][_PosixPath('src/%s' % path_below_src)]
at_index = entry.find('@')
git_repo_url = entry[:at_index]
git_hash = entry[at_index + 1:]
return self._GetCommitInfo(path_below_src, git_hash, git_repo_url)
def _GetCLInfo(self):
cl_output = self._RunCommand(['git', 'cl', 'issue'])
m = CL_ISSUE_RE.match(cl_output.strip())
if not m:
logging.error('Cannot find any CL info. Output was:\n%s', cl_output)
issue_number = int(
url =
# Parse the Rietveld host from the URL.
m = RIETVELD_URL_RE.match(url)
if not m:
logging.error('Cannot parse Rietveld host from URL: %s', url)
rietveld_server =
return CLInfo(issue_number, url, rietveld_server)
def _GetCurrentBranchName(self):
return self._RunCommand(
['git', 'rev-parse', '--abbrev-ref', 'HEAD']).splitlines()[0]
def _IsTreeClean(self):
lines = self._RunCommand(['git', 'status', '--porcelain']).splitlines()
if len(lines) == 0:
return True
logging.debug('Dirty/unversioned files:\n%s', '\n'.join(lines))
return False
def _UpdateReadmeFile(self, readme_path, new_revision):
readme = open(os.path.join(self._chromium_src, readme_path), 'r+')
txt =
m = re.sub(re.compile('.*^Revision\: ([0-9]*).*', re.MULTILINE),
('Revision: %s' % new_revision), txt)
def PrepareRoll(self, dry_run, ignore_checks, no_commit, close_previous_roll):
# TODO(kjellander): use os.path.normcase, os.path.join etc for all paths for
# cross platform compatibility.
if not ignore_checks:
if self._GetCurrentBranchName() != 'master':
logging.error('Please checkout the master branch.')
return -1
if not self._IsTreeClean():
logging.error('Please make sure you don\'t have any modified files.')
return -1
logging.debug('Checking for a previous roll branch.')
if close_previous_roll:
logging.debug('Pulling latest changes')
if not ignore_checks:
self._RunCommand(['git', 'pull'])
self._RunCommand(['git', 'checkout', '-b', ROLL_BRANCH_NAME])
# Modify Chromium's DEPS file.
# Parse current hashes.
deps_filename = os.path.join(self._chromium_src, 'DEPS')
deps = _ParseDepsFile(deps_filename)
webrtc_current = self._GetDepsCommitInfo(deps, WEBRTC_PATH)
# Find ToT revisions.
webrtc_latest = self._GetCommitInfo(WEBRTC_PATH)
if IS_WIN:
# Make sure the roll script doesn't use Windows line endings.
self._RunCommand(['git', 'config', 'core.autocrlf', 'true'])
self._UpdateDep(deps_filename, WEBRTC_PATH, webrtc_latest)
if self._IsTreeClean():
print 'The latest revision is already rolled for WebRTC.'
description = _GenerateCLDescriptionCommand(
webrtc_current, webrtc_latest)
logging.debug('Committing changes locally.')
self._RunCommand(['git', 'add', '--update', '.'])
self._RunCommand(['git', 'commit'] + description)
logging.debug('Uploading changes...')
self._RunCommand(['git', 'cl', 'upload'],
extra_env={'EDITOR': 'true'})
cl_info = self._GetCLInfo()
logging.debug('Issue: %d URL: %s', cl_info.issue, cl_info.url)
if not dry_run and not no_commit:
logging.debug('Sending the CL to the CQ...')
self._RunCommand(['git', 'cl', 'set_commit'])
logging.debug('Sent the CL to the CQ. Monitor here: %s', cl_info.url)
# TODO(kjellander): Checkout masters/previous branches again.
return 0
def _UpdateDep(self, deps_filename, dep_relative_to_src, commit_info):
dep_name = os.path.join('src', dep_relative_to_src)
comment = 'commit position %s' % commit_info.commit_position
# relies on cwd being the Chromium checkout, so let's
# temporarily change the working directory and then change back.
cwd = os.getcwd()
roll_dep_svn.update_deps(deps_filename, dep_relative_to_src, dep_name,
commit_info.git_commit, comment)
def _DeleteRollBranch(self):
self._RunCommand(['git', 'checkout', 'master'])
self._RunCommand(['git', 'branch', '-D', ROLL_BRANCH_NAME])
logging.debug('Deleted the local roll branch (%s)', ROLL_BRANCH_NAME)
def _GetBranches(self):
"""Returns a tuple of active,branches.
The 'active' is the name of the currently active branch and 'branches' is a
list of all branches.
lines = self._RunCommand(['git', 'branch']).split('\n')
branches = []
active = ''
for l in lines:
if '*' in l:
# The assumption is that the first char will always be the '*'.
active = l[1:].strip()
b = l.strip()
if b:
return (active, branches)
def Abort(self):
active_branch, branches = self._GetBranches()
if active_branch == ROLL_BRANCH_NAME:
active_branch = 'master'
if ROLL_BRANCH_NAME in branches:
print 'Aborting pending roll.'
self._RunCommand(['git', 'checkout', ROLL_BRANCH_NAME])
# Ignore an error here in case an issue wasn't created for some reason.
self._RunCommand(['git', 'cl', 'set_close'], ignore_exit_code=True)
self._RunCommand(['git', 'checkout', active_branch])
self._RunCommand(['git', 'branch', '-D', ROLL_BRANCH_NAME])
return 0
def WaitForTrybots(self):
active_branch, _ = self._GetBranches()
if active_branch != ROLL_BRANCH_NAME:
self._RunCommand(['git', 'checkout', ROLL_BRANCH_NAME])
cl_info = self._GetCLInfo()
return _WaitForTrybots(cl_info.issue, cl_info.rietveld_server)
def main():
parser = argparse.ArgumentParser(
description='Find webrtc revisions for roll.')
help=('Aborts a previously prepared roll. '
'Closes any associated issues and deletes the roll branches'),
help=('Don\'t send the CL to the CQ. This is useful if additional changes '
'are needed to the CL (like for API changes).'),
help=('Waits until all trybots from a previously created roll are either '
'successful or at least one has failed. This is useful to be able to '
'continuously run this script but not initiating new rolls until a '
'previous one is known to have passed or failed.'),
parser.add_argument('--close-previous-roll', action='store_true',
help='Abort a previous roll if one exists.')
parser.add_argument('--dry-run', action='store_true', default=False,
help='Create branches and CLs but doesn\'t send tryjobs or commit.')
parser.add_argument('--ignore-checks', action='store_true', default=False,
help=('Skips checks for being on the master branch, dirty workspaces and '
'the updating of the checkout. Will still delete and create local '
'Git branches.'))
parser.add_argument('-v', '--verbose', action='store_true', default=False,
help='Be extra verbose in printing of log messages.')
args = parser.parse_args()
if args.verbose:
autoroller = AutoRoller(SRC_DIR)
if args.abort:
return autoroller.Abort()
elif args.wait_for_trybots:
return autoroller.WaitForTrybots()
return autoroller.PrepareRoll(args.dry_run, args.ignore_checks,
args.no_commit, args.close_previous_roll)
if __name__ == '__main__':