gclient: Add '--no-bootstrap' sync option.

Review URL: https://codereview.chromium.org/1050853002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@294714 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -2024,6 +2024,9 @@ def CMDsync(parser, args):
   parser.add_option('--shallow', action='store_true',
                     help='GIT ONLY - Do a shallow clone into the cache dir. '
                          'Requires Git 1.9+')
+  parser.add_option('--no_bootstrap', '--no-bootstrap',
+                    action='store_true',
+                    help='Don\'t bootstrap from Google Storage.')
   parser.add_option('--ignore_locks', action='store_true',
                     help='GIT ONLY - Ignore cache locks.')
   (options, args) = parser.parse_args(args)

gclient_scm.py

@@ -851,7 +851,9 @@ class GitWrapper(SCMWrapper):
         depth = 10000
     else:
       depth = None
-    mirror.populate(verbose=options.verbose, bootstrap=True, depth=depth,
+    mirror.populate(verbose=options.verbose,
+                    bootstrap=not getattr(options, 'no_bootstrap', False),
+                    depth=depth,
                     ignore_lock=getattr(options, 'ignore_locks', False))
     mirror.unlock()