1 # Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 """Sync the Chrome source code used by Chrome OS to the specified directory."""
7 from __future__ import print_function
11 from chromite.lib import commandline
12 from chromite.lib import cros_build_lib
13 from chromite.lib import gclient
14 from chromite.lib import osutils
18 """Creates the argparse parser."""
19 parser = commandline.ArgumentParser(description=__doc__)
21 version = parser.add_mutually_exclusive_group()
22 version.add_argument('--tag', help='Sync to specified Chrome release',
24 version.add_argument('--revision', help='Sync to specified git revision',
27 parser.add_argument('--internal', help='Sync internal version of Chrome',
28 action='store_true', default=False)
29 parser.add_argument('--reset', help='Revert local changes',
30 action='store_true', default=False)
31 parser.add_argument('--gclient', help=commandline.argparse.SUPPRESS,
33 parser.add_argument('chrome_root', help='Directory to sync chrome in')
40 options = parser.parse_args(argv)
42 # Revert any lingering local changes.
43 if not osutils.SafeMakedirs(options.chrome_root) and options.reset:
45 gclient.Revert(options.gclient, options.chrome_root)
46 except cros_build_lib.RunCommandError:
47 osutils.RmDir(options.chrome_root)
48 osutils.SafeMakedirs(options.chrome_root)
51 gclient.WriteConfigFile(options.gclient, options.chrome_root,
52 options.internal, options.version)
53 sync_fn = functools.partial(
54 gclient.Sync, options.gclient, options.chrome_root, reset=options.reset)
56 # Sync twice when run with --reset, which implies 'gclient sync -D'.
58 # There's a bug with 'gclient sync -D' that gets hit when the location of a
59 # dependency checkout (in the DEPS file) is moved to a path that contains
60 # (in a directory fashion) its old path. E.g., when Blink is moved from
61 # Webkit/Source/ to Webkit/. When this happens, a 'gclient sync -D' will
62 # blow away Webkit/Source/ after the sync, since it is no longer in the
63 # DEPS file, leaving the Blink checkout missing a Source/ subdirectory.
65 # This bug also gets hit the other way around - E.g., if Blink moves from
66 # Webkit/ to Webkit/Source/.
68 # To work around this, we sync twice, so that any directories deleted by
69 # the first sync will be restored in the second.
71 # TODO(rcui): Remove this workaround when the bug is fixed in gclient, or
72 # replace with a more sophisticated solution that syncs twice only when any
73 # paths in the DEPS file cannot be found after initial sync.