| # Copyright 2015 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. |
| |
| """ |
| Sets up various automatic gyp environment variables. These are used by |
| gyp_v8 and landmines.py which run at different stages of runhooks. To |
| make sure settings are consistent between them, all setup should happen here. |
| """ |
| |
| import os |
| import sys |
| |
| SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__)) |
| V8_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir)) |
| |
| |
| def apply_gyp_environment(file_path=None): |
| """ |
| Reads in a *.gyp_env file and applies the valid keys to os.environ. |
| """ |
| if not file_path or not os.path.exists(file_path): |
| return |
| file_contents = open(file_path).read() |
| try: |
| file_data = eval(file_contents, {'__builtins__': None}, None) |
| except SyntaxError, e: |
| e.filename = os.path.abspath(file_path) |
| raise |
| supported_vars = ( 'V8_GYP_FILE', |
| 'V8_GYP_SYNTAX_CHECK', |
| 'GYP_DEFINES', |
| 'GYP_GENERATORS', |
| 'GYP_GENERATOR_FLAGS', |
| 'GYP_GENERATOR_OUTPUT', ) |
| for var in supported_vars: |
| val = file_data.get(var) |
| if 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] = val |
| |
| |
| def set_environment(): |
| """Sets defaults for GYP_* variables.""" |
| |
| if 'SKIP_V8_GYP_ENV' not in os.environ: |
| # Update the environment based on v8.gyp_env |
| gyp_env_path = os.path.join(os.path.dirname(V8_ROOT), 'v8.gyp_env') |
| apply_gyp_environment(gyp_env_path) |
| |
| if not os.environ.get('GYP_GENERATORS'): |
| # Default to ninja on all platforms. |
| os.environ['GYP_GENERATORS'] = 'ninja' |
