Port chromium landmines script.

build/landmine_utils.py

 # Copyright 2014 the V8 project 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 functools
 import logging
 import os
 import shlex
 import sys
@@ skipping 29 matching lines @@
 def IsMac():
   return sys.platform == 'darwin'
 
 
 @memoize()
 def gyp_defines():
   """Parses and returns GYP_DEFINES env var as a dictionary."""
   return dict(arg.split('=', 1)
       for arg in shlex.split(os.environ.get('GYP_DEFINES', '')))
 
+
+@memoize()
+def gyp_generator_flags():
+  """Parses and returns GYP_GENERATOR_FLAGS env var as a dictionary."""
+  return dict(arg.split('=', 1)
+      for arg in shlex.split(os.environ.get('GYP_GENERATOR_FLAGS', '')))
+
+
 @memoize()
 def gyp_msvs_version():
   return os.environ.get('GYP_MSVS_VERSION', '')
 
+
 @memoize()
 def distributor():
   """
   Returns a string which is the distributed build engine in use (if any).
   Possible values: 'goma', 'ib', ''
   """
   if 'goma' in gyp_defines():
     return 'goma'
   elif IsWindows():
     if 'CHROME_HEADLESS' in os.environ:
@@ skipping 41 matching lines @@
     elif platform() == 'ios':
       return 'xcode'
     elif IsWindows():
       return 'msvs'
     elif IsLinux():
       return 'make'
     elif IsMac():
       return 'xcode'
     else:
       assert False, 'Don\'t know what builder we\'re using!'