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#!/usr/bin/env python
# Copyright 2014 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.
"""Generate a CL to roll a DEPS entry to the specified revision number and post
it to Rietveld so that the CL will land automatically if it passes the
commit-queue's checks.
"""
import logging
import optparse
import os
import re
import sys
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 scm
import subprocess2
def die_with_error(msg):
print >> sys.stderr, msg
sys.exit(1)
def process_deps(path, project, new_rev, is_dry_run):
"""Update project_revision to |new_issue|.
A bit hacky, could it be made better?
"""
content = open(path).read()
# Hack for Blink to get the AutoRollBot running again.
if project == "blink":
project = "webkit"
old_line = r"(\s+)'%s_revision': '([0-9a-f]{2,40})'," % project
new_line = r"\1'%s_revision': '%s'," % (project, new_rev)
new_content = re.sub(old_line, new_line, content, 1)
old_rev = re.search(old_line, content).group(2)
if not old_rev or new_content == content:
die_with_error('Failed to update the DEPS file')
if not is_dry_run:
open(path, 'w').write(new_content)
return old_rev
class PrintSubprocess(object):
"""Wrapper for subprocess2 which prints out every command."""
def __getattr__(self, attr):
def _run_subprocess2(cmd, *args, **kwargs):
print cmd
sys.stdout.flush()
return getattr(subprocess2, attr)(cmd, *args, **kwargs)
return _run_subprocess2
prnt_subprocess = PrintSubprocess()
def main():
tool_dir = os.path.dirname(os.path.abspath(__file__))
parser = optparse.OptionParser(usage='%prog [options] <project> <new rev>',
description=sys.modules[__name__].__doc__)
parser.add_option('-v', '--verbose', action='count', default=0)
parser.add_option('--dry-run', action='store_true')
parser.add_option('-f', '--force', action='store_true',
help='Make destructive changes to the local checkout if '
'necessary.')
parser.add_option('--commit', action='store_true', default=True,
help='(default) Put change in commit queue on upload.')
parser.add_option('--no-commit', action='store_false', dest='commit',
help='Don\'t put change in commit queue on upload.')
parser.add_option('-r', '--reviewers', default='',
help='Add given users as either reviewers or TBR as'
' appropriate.')
parser.add_option('--upstream', default='origin/master',
help='(default "%default") Use given start point for change'
' to upload. For instance, if you use the old git workflow,'
' you might set it to "origin/trunk".')
parser.add_option('--cc', help='CC email addresses for issue.')
parser.add_option('-m', '--message', help='Custom commit message.')
options, args = parser.parse_args()
logging.basicConfig(
level=
[logging.WARNING, logging.INFO, logging.DEBUG][
min(2, options.verbose)])
if len(args) != 2:
parser.print_help()
exit(0)
root_dir = os.path.dirname(tool_dir)
os.chdir(root_dir)
project = args[0]
new_rev = args[1]
# Silence the editor.
os.environ['EDITOR'] = 'true'
if options.force and not options.dry_run:
prnt_subprocess.check_call(['git', 'clean', '-d', '-f'])
prnt_subprocess.call(['git', 'rebase', '--abort'])
old_branch = scm.GIT.GetBranch(root_dir)
new_branch = '%s_roll' % project
if options.upstream == new_branch:
parser.error('Cannot set %s as its own upstream.' % new_branch)
if old_branch == new_branch:
if options.force:
if not options.dry_run:
prnt_subprocess.check_call(['git', 'checkout', options.upstream, '-f'])
prnt_subprocess.call(['git', 'branch', '-D', old_branch])
else:
parser.error('Please delete the branch %s and move to a different branch'
% new_branch)
if not options.dry_run:
prnt_subprocess.check_call(['git', 'fetch', 'origin'])
prnt_subprocess.call(['git', 'svn', 'fetch'])
branch_cmd = ['git', 'checkout', '-b', new_branch, options.upstream]
if options.force:
branch_cmd.append('-f')
prnt_subprocess.check_output(branch_cmd)
try:
old_rev = process_deps(os.path.join(root_dir, 'DEPS'), project, new_rev,
options.dry_run)
print '%s roll %s:%s' % (project.title(), old_rev, new_rev)
review_field = 'TBR' if options.commit else 'R'
commit_msg = options.message or '%s roll %s:%s\n' % (project.title(),
old_rev, new_rev)
commit_msg += '\n%s=%s\n' % (review_field, options.reviewers)
if options.dry_run:
print 'Commit message: ' + commit_msg
return 0
prnt_subprocess.check_output(['git', 'commit', '-m', commit_msg, 'DEPS'])
prnt_subprocess.check_call(['git', 'diff', '--no-ext-diff',
options.upstream])
upload_cmd = ['git', 'cl', 'upload', '--bypass-hooks']
if options.commit:
upload_cmd.append('--use-commit-queue')
if options.reviewers:
upload_cmd.append('--send-mail')
if options.cc:
upload_cmd.extend(['--cc', options.cc])
prnt_subprocess.check_call(upload_cmd)
finally:
if not options.dry_run:
prnt_subprocess.check_output(['git', 'checkout', old_branch])
prnt_subprocess.check_output(['git', 'branch', '-D', new_branch])
return 0
if __name__ == '__main__':
sys.exit(main())
|
