Make WebRTC work with Chromium Git checkouts
WebRTC standalone shares a lot of dependencies and build
tools with Chromium. To make the build work, many of the
paths of a Chromium checkout is now emulated by creating
symlinks to files and directories.
All DEPS entries that previously used Var("chromium_trunk")
to reference a Chromium checkout or From("chromium_deps"..)
to reference the Chromium DEPS file are now removed and
replaced by symlink entries in setup_links.py.
The script also handles cleanup of the legacy
Subversion-based dependencies that's needed for the
transition.
Windows: One Windows-specific important change is that
gclient sync|runhooks must now be run from a shell
with Administrator privileges in order to be able to create
symlinks. This also means that Windows XP is no longer
supported.
To transition a previously created checkout:
Run "python setup_links.py --force" to cleanup the old
SVN-based dependencies that have been synced by gclient sync.
For Buildbots, the --force flag is automatically enabled for
their syncs.
BUG=2863, chromium:339647
TEST=Manual testing on Linux, Mac and Windows.
R=andrew@webrtc.org, iannucci@chromium.org, phoglund@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/18379005
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6938 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/sync_chromium.py b/sync_chromium.py
new file mode 100755
index 0000000..ab40c37
--- /dev/null
+++ b/sync_chromium.py
@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+# Copyright (c) 2014 The WebRTC 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 in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS. All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+import argparse
+import os
+import subprocess
+import sys
+
+
+ROOT_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+def get_target_os_list():
+ try:
+ main_gclient = os.path.join(os.path.dirname(ROOT_DIR), '.gclient')
+ config_dict = {}
+ with open(main_gclient, 'rb') as deps_content:
+ exec(deps_content, config_dict)
+ return ','.join(config_dict.get('target_os', []))
+ except Exception as e:
+ print >> sys.stderr, "error while parsing .gclient:", e
+
+
+def main():
+ CR_DIR = os.path.join(ROOT_DIR, 'chromium')
+
+ p = argparse.ArgumentParser()
+ p.add_argument('--target-revision', required=True,
+ help='The target chromium git revision [REQUIRED]')
+ p.add_argument('--chromium-dir', default=CR_DIR,
+ help=('The path to the chromium directory to sync '
+ '(default: %(default)r)'))
+ opts = p.parse_args()
+ opts.chromium_dir = os.path.abspath(opts.chromium_dir)
+
+ # Do a quick check to see if we were successful last time to make runhooks
+ # sooper fast.
+ flag_file = os.path.join(opts.chromium_dir, '.last_sync_chromium')
+ if os.path.exists(flag_file):
+ with open(flag_file, 'r') as f:
+ if f.read() == opts.target_revision:
+ print "Chromium already up to date:", opts.target_revision
+ return 0
+ os.unlink(flag_file)
+
+ env = os.environ.copy()
+ env['GYP_CHROMIUM_NO_ACTION'] = '1'
+ gclient_cmd = 'gclient.bat' if sys.platform.startswith('win') else 'gclient'
+ args = [
+ gclient_cmd, 'sync', '--no-history', '--force', '--revision',
+ 'src@'+opts.target_revision]
+ target_os_list = get_target_os_list()
+ if target_os_list:
+ args += ['--deps=' + target_os_list]
+
+ print 'Running "%s" in %s' % (' '.join(args), opts.chromium_dir)
+ ret = subprocess.call(args, cwd=opts.chromium_dir, env=env)
+ if ret == 0:
+ with open(flag_file, 'wb') as f:
+ f.write(opts.target_revision)
+
+ return ret
+
+
+if __name__ == '__main__':
+ sys.exit(main())