example flag CL

recipe_modules/gclient/config.py

 # Copyright 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.
 
 import types
 
 from recipe_engine.config import config_item_context, ConfigGroup, BadConf
 from recipe_engine.config import ConfigList, Dict, Single, Static, Set, List
 
 from . import api as gclient_api
@@ skipping 68 matching lines @@
     patch_projects = Dict(value_type=tuple, hidden=True),
 
     # Check out refs/branch-heads.
     # TODO (machenbach): Only implemented for bot_update atm.
     with_branch_heads = Single(
         bool,
         empty_val=False,
         required=False,
         hidden=True),
 
+    break_locks_flag = Single(
+        bool, empty_val=False, required=False, hidden=True),
+
     GIT_MODE = Static(bool(GIT_MODE)),
     USE_MIRROR = Static(bool(USE_MIRROR)),
     # TODO(tandrii): remove PATCH_PROJECT field.
     # DON'T USE THIS. WILL BE REMOVED.
     PATCH_PROJECT = Static(str(PATCH_PROJECT), hidden=True),
     BUILDSPEC_VERSION= Static(BUILDSPEC_VERSION, hidden=True),
   )
 
 config_ctx = config_item_context(BaseConfig)
 
@@ skipping 573 matching lines @@
   soln = c.solutions.add()
   soln.name = 'gerrit-test-cq-normal'
   soln.url = 'https://chromium.googlesource.com/playground/gerrit-cq/normal.git'
 
 # TODO(phajdan.jr): Move to proper repo and add coverage.
 @config_ctx()
 def valgrind(c):  # pragma: no cover
   """Add Valgrind binaries to the gclient solution."""
   c.solutions[0].custom_deps['src/third_party/valgrind'] = \
     ChromiumGitURL(c, 'chromium', 'deps', 'valgrind', 'binaries')