Add gclient recurse

gclient.py

 #!/usr/bin/python
 # Copyright (c) 2010 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.
 
 """Meta checkout manager supporting both Subversion and GIT.
 
 Files
   .gclient      : Current client configuration, written by 'config' command.
                   Format is a Python script defining 'solutions', a list whose
@@ skipping 39 matching lines @@
 """
 
 __version__ = "0.4.1"
 
 import errno
 import logging
 import optparse
 import os
 import pprint
 import re
+import subprocess
 import sys
 import urlparse
 import urllib
 
 import breakpad
 
 import gclient_scm
 import gclient_utils
 from third_party.repo.progress import Progress
 
@@ skipping 779 matching lines @@
   client = GClient.LoadCurrentConfig(options)
   if not client:
     raise gclient_utils.Error('client not configured; see \'gclient config\'')
   if options.verbose:
     # Print out the .gclient file.  This is longer than if we just printed the
     # client dict, but more legible, and it might contain helpful comments.
     print(client.config_content)
   return client.RunOnDeps('cleanup', args)
 
 
+@attr('usage', '[command] [args ...]')
+def CMDrecurse(parser, args):
+  """Operates on all the entries.
+
+  Runs a shell command on all entries.
+  """
+  # Stop parsing at the first non-arg so that these go through to the command
+  parser.disable_interspersed_args()
+  parser.add_option('-s', '--scm', action='append', default=[],
+                    help='choose scm types to operate upon')
+  options, args = parser.parse_args(args)
+  root, entries = gclient_utils.GetGClientRootAndEntries()
+  scm_set = set()
+  for scm in options.scm:
+    scm_set.update(scm.split(','))
+
+  # Pass in the SCM type as an env variable
+  env = os.environ.copy()
+
+  for path, url in entries.iteritems():
+    scm = gclient_scm.GetScmName(url)
+    if scm_set and scm not in scm_set:
+      continue
+    dir = os.path.normpath(os.path.join(root, path))
+    env['GCLIENT_SCM'] = scm
+    env['GCLIENT_URL'] = url
+    subprocess.Popen(args, cwd=dir, env=env).communicate()
+
+
 @attr('usage', '[url] [safesync url]')
 def CMDconfig(parser, args):
   """Create a .gclient file in the current directory.
 
 This specifies the configuration for further commands. After update/sync,
 top-level DEPS files in each module are read to determine dependent
 modules to operate on as well. If optional [url] parameter is
 provided, then configuration is read from a specified Subversion server
 URL.
 """
@@ skipping 309 matching lines @@
     return CMDhelp(parser, argv)
   except gclient_utils.Error, e:
     print >> sys.stderr, 'Error: %s' % str(e)
     return 1
 
 
 if '__main__' == __name__:
   sys.exit(Main(sys.argv[1:]))
 
 # vim: ts=2:sw=2:tw=80:et: