| # 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. |
| |
| # This file helps gyp_chromium and landmines correctly set up the gyp |
| # environment from chromium.gyp_env on disk |
| |
| import os |
| |
| SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__)) |
| CHROME_SRC = os.path.dirname(SCRIPT_DIR) |
| |
| |
| def apply_gyp_environment_from_file(file_path): |
| """Reads in a *.gyp_env file and applies the valid keys to os.environ.""" |
| if not os.path.exists(file_path): |
| return |
| with open(file_path, 'rU') as f: |
| file_contents = f.read() |
| try: |
| file_data = eval(file_contents, {'__builtins__': None}, None) |
| except SyntaxError, e: |
| e.filename = os.path.abspath(file_path) |
| raise |
| supported_vars = ( |
| 'CC', |
| 'CC_wrapper', |
| 'CHROMIUM_GYP_FILE', |
| 'CHROMIUM_GYP_SYNTAX_CHECK', |
| 'CXX', |
| 'CXX_wrapper', |
| 'GYP_DEFINES', |
| 'GYP_GENERATOR_FLAGS', |
| 'GYP_CROSSCOMPILE', |
| 'GYP_GENERATOR_OUTPUT', |
| 'GYP_GENERATORS', |
| 'GYP_MSVS_VERSION', |
| ) |
| for var in supported_vars: |
| file_val = file_data.get(var) |
| if file_val: |
| if var in os.environ: |
| print 'INFO: Environment value for "%s" overrides value in %s.' % ( |
| var, os.path.abspath(file_path) |
| ) |
| else: |
| os.environ[var] = file_val |
| |
| |
| def apply_chromium_gyp_env(): |
| if 'SKIP_CHROMIUM_GYP_ENV' not in os.environ: |
| # Update the environment based on chromium.gyp_env |
| path = os.path.join(os.path.dirname(CHROME_SRC), 'chromium.gyp_env') |
| apply_gyp_environment_from_file(path) |