| #!/usr/bin/env python |
| # Copyright (c) 2011 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 webkit 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 |
| |
| import find_depot_tools |
| import scm |
| import subprocess2 |
| |
| |
| def die_with_error(msg): |
| print >> sys.stderr, msg |
| sys.exit(1) |
| |
| |
| def process_deps(path, new_rev): |
| """Update webkit_revision to |new_issue|. |
| |
| A bit hacky, could it be made better? |
| """ |
| content = open(path).read() |
| old_line = r'(\s+)"webkit_revision": "(\d+)",' |
| new_line = r'\1"webkit_revision": "%d",' % new_rev |
| new_content = re.sub(old_line, new_line, content, 1) |
| if new_content == content: |
| die_with_error('Failed to update the DEPS file') |
| open(path, 'w').write(new_content) |
| |
| |
| def main(): |
| tool_dir = os.path.dirname(os.path.abspath(__file__)) |
| parser = optparse.OptionParser(usage='<new webkit rev>') |
| parser.add_option('-v', '--verbose', action='count', default=0) |
| options, args = parser.parse_args() |
| logging.basicConfig( |
| level= |
| [logging.WARNING, logging.INFO, logging.DEBUG][ |
| min(2, options.verbose)]) |
| if len(args) != 1: |
| parser.error('Need only one arg: new webkit revision to roll to.') |
| |
| root_dir = os.path.dirname(tool_dir) |
| os.chdir(root_dir) |
| |
| new_rev = int(args[0]) |
| msg = 'Roll webkit revision to %s' % new_rev |
| print msg |
| |
| # Silence the editor. |
| os.environ['EDITOR'] = 'true' |
| |
| old_branch = scm.GIT.GetBranch(root_dir) |
| if old_branch == 'webkit_roll': |
| parser.error( |
| 'Please delete the branch webkit_roll and move to a different branch') |
| subprocess2.check_output( |
| ['git', 'checkout', '-b', 'webkit_roll', 'origin/trunk']) |
| try: |
| process_deps(os.path.join(root_dir, 'DEPS'), new_rev) |
| commit_msg = msg + '\n\nTBR=\n' |
| subprocess2.check_output(['git', 'commit', '-m', commit_msg, 'DEPS']) |
| subprocess2.check_call(['git', 'diff', 'origin/trunk']) |
| subprocess2.check_call(['git', 'cl', 'upload', '--use-commit-queue']) |
| finally: |
| subprocess2.check_output(['git', 'checkout', old_branch]) |
| subprocess2.check_output(['git', 'branch', '-D', 'webkit_roll']) |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |