Add a new buildbot-tool generator for master configs

PRESUBMIT.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.
 
 """Top-level presubmit script for buildbot.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into gcl.
 """
 
 import sys
 
 
 def CommonChecks(input_api, output_api):
   def join(*args):
     return input_api.os_path.join(input_api.PresubmitLocalPath(), *args)
 
   black_list = list(input_api.DEFAULT_BLACK_LIST) + [
       r'.*slave/.*/build.*/.*',
       r'.*slave/.*/isolate.*/.*',
       r'.*depot_tools/.*',
       r'.*goma/.*',
+      r'.*scripts/tools/buildbot_tool_templates/.*',
       r'.*scripts/release/.*',
       r'.*scripts/slave/recipe_modules/.*',
       r'.*scripts/gsd_generate_index/.*',
       r'.*masters/.*/templates/.*\.html$',
       r'.*masters/.*/templates/.*\.css$',
+      r'.*masters/.*/builders.py',
       r'.*masters/.*/public_html/.*\.html$',
       r'.*masters/.*/public_html/.*\.css$',
   ]
   tests = []
   sys_path_backup = sys.path
   try:
     sys.path = [
         join('third_party'),
         join('third_party', 'buildbot_8_4p1'),
         join('third_party', 'buildbot_slave_8_4'),
@@ skipping 118 matching lines @@
   output = CommonChecks(input_api, output_api)
   output.extend(BuildInternalCheck(output, input_api, output_api))
   return output
 
 
 def CheckChangeOnCommit(input_api, output_api):
   output = CommonChecks(input_api, output_api)
   output.extend(ConditionalChecks(input_api, output_api))
   output.extend(BuildInternalCheck(output, input_api, output_api))
   return output