1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 # This file helps gyp_chromium and landmines correctly set up the gyp
6 # environment from chromium.gyp_env on disk
10 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
11 CHROME_SRC = os.path.dirname(SCRIPT_DIR)
14 def apply_gyp_environment_from_file(file_path):
15 """Reads in a *.gyp_env file and applies the valid keys to os.environ."""
16 if not os.path.exists(file_path):
18 with open(file_path, 'rU') as f:
19 file_contents = f.read()
21 file_data = eval(file_contents, {'__builtins__': None}, None)
22 except SyntaxError, e:
23 e.filename = os.path.abspath(file_path)
29 'CHROMIUM_GYP_SYNTAX_CHECK',
33 'GYP_GENERATOR_FLAGS',
35 'GYP_GENERATOR_OUTPUT',
38 for var in supported_vars:
39 file_val = file_data.get(var)
42 print 'INFO: Environment value for "%s" overrides value in %s.' % (
43 var, os.path.abspath(file_path)
46 os.environ[var] = file_val
49 def apply_chromium_gyp_env():
50 if 'SKIP_CHROMIUM_GYP_ENV' not in os.environ:
51 # Update the environment based on chromium.gyp_env
52 path = os.path.join(os.path.dirname(CHROME_SRC), 'chromium.gyp_env')
53 apply_gyp_environment_from_file(path)