1 # Copyright 2015 the V8 project 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.
6 Sets up various automatic gyp environment variables. These are used by
7 gyp_v8 and landmines.py which run at different stages of runhooks. To
8 make sure settings are consistent between them, all setup should happen here.
14 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
15 V8_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
18 def apply_gyp_environment(file_path=None):
20 Reads in a *.gyp_env file and applies the valid keys to os.environ.
22 if not file_path or not os.path.exists(file_path):
24 file_contents = open(file_path).read()
26 file_data = eval(file_contents, {'__builtins__': None}, None)
27 except SyntaxError, e:
28 e.filename = os.path.abspath(file_path)
30 supported_vars = ( 'V8_GYP_FILE',
31 'V8_GYP_SYNTAX_CHECK',
33 'GYP_GENERATOR_FLAGS',
34 'GYP_GENERATOR_OUTPUT', )
35 for var in supported_vars:
36 val = file_data.get(var)
39 print 'INFO: Environment value for "%s" overrides value in %s.' % (
40 var, os.path.abspath(file_path)
46 def set_environment():
47 """Sets defaults for GYP_* variables."""
49 if 'SKIP_V8_GYP_ENV' not in os.environ:
50 # Update the environment based on v8.gyp_env
51 gyp_env_path = os.path.join(os.path.dirname(V8_ROOT), 'v8.gyp_env')
52 apply_gyp_environment(gyp_env_path)