Set config option for diff.ignoreSubmodules to 'all'

gclient_scm.py

 # Copyright (c) 2012 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.
 
 """Gclient-specific SCM-specific operations."""
 
 import logging
 import os
 import posixpath
 import re
@@ skipping 182 matching lines @@
         ['git', 'diff', merge_base],
         cwd=self.checkout_path,
         filter_fn=GitDiffFilterer(self.relpath).Filter)
 
   def UpdateSubmoduleConfig(self):
     submod_cmd = ['git', 'config', '-f', '$toplevel/.git/config',
                   'submodule.$name.ignore', '||',
                   'git', 'config', '-f', '$toplevel/.git/config',
                   'submodule.$name.ignore', 'all']
     cmd = ['git', 'submodule', '--quiet', 'foreach', ' '.join(submod_cmd)]
+    cmd2 = ['git', 'config', 'diff.ignoreSubmodules', 'all']
     try:
       gclient_utils.CheckCallAndFilter(
         cmd, cwd=self.checkout_path, print_stdout=False,
         filter_fn=lambda x: None)
+      gclient_utils.CheckCallAndFilter(
+        cmd2, cwd=self.checkout_path, print_stdout=False,
+        filter_fn=lambda x: None)
     except subprocess2.CalledProcessError:
       # Not a fatal error, or even very interesting in a non-git-submodule
       # world.  So just keep it quiet.
       pass
 
   def update(self, options, args, file_list):
     """Runs git to update or transparently checkout the working copy.
 
     All updated files will be appended to file_list.
 
@@ skipping 972 matching lines @@
       new_command.append('--force')
       if command[0] != 'checkout' and scm.SVN.AssertVersion('1.6')[0]:
         new_command.extend(('--accept', 'theirs-conflict'))
     elif options.manually_grab_svn_rev:
       new_command.append('--force')
       if command[0] != 'checkout' and scm.SVN.AssertVersion('1.6')[0]:
         new_command.extend(('--accept', 'postpone'))
     elif command[0] != 'checkout' and scm.SVN.AssertVersion('1.6')[0]:
       new_command.extend(('--accept', 'postpone'))
     return new_command