Skip the creation/sync step on the bot.

tools/bisect_utils.py

 # Copyright (c) 2013 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.
 
 """Set of operations/utilities related to checking out the depot, and
 outputting annotations on the buildbot waterfall. These are intended to be
 used by the bisection scripts."""
 
 import errno
 import os
@@ skipping 408 matching lines @@
   """
   if opts.target_platform == 'android':
     CopyAndSaveOriginalEnvironmentVars()
     return SetupAndroidBuildEnvironment(opts)
   elif opts.target_platform == 'cros':
     return SetupCrosRepo()
 
   return True
 
 
+def CheckIfBisectDepotExists(opts):
+  """Checks if the bisect directory already exists.
+
+  Args:
+    opts: The options parsed from the command line through parse_args().
+
+  Returns:
+    Returns True if it exists.
+  """
+  path_to_dir = os.path.join(opts.working_directory, 'bisect', 'src')
+  return os.path.exists(path_to_dir)
+
+
 def CreateBisectDirectoryAndSetupDepot(opts, custom_deps):
   """Sets up a subdirectory 'bisect' and then retrieves a copy of the depot
   there using gclient.
 
   Args:
     opts: The options parsed from the command line through parse_args().
     custom_deps: A dictionary of additional dependencies to add to .gclient.
 
   Returns:
     Returns 0 on success, otherwise 1.
   """
   if not CreateAndChangeToSourceDirectory(opts.working_directory):
     print 'Error: Could not create bisect directory.'
     print
     return 1
 
   if not SetupGitDepot(opts, custom_deps):
     print 'Error: Failed to grab source.'
     print
     return 1
 
   return 0