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. 4 5 """ 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. 9 """ 10 11 import os 12 import sys 13 import vs_toolchain 14 15 SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__)) 16 V8_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir)) 17 18 19 def apply_gyp_environment(file_path=None): 20 """ 21 Reads in a *.gyp_env file and applies the valid keys to os.environ. 22 """ 23 if not file_path or not os.path.exists(file_path): 24 return 25 file_contents = open(file_path).read() 26 try: 27 file_data = eval(file_contents, {'__builtins__': None}, None) 28 except SyntaxError, e: 29 e.filename = os.path.abspath(file_path) 30 raise 31 supported_vars = ( 'V8_GYP_FILE', 32 'V8_GYP_SYNTAX_CHECK', 33 'GYP_DEFINES', 34 'GYP_GENERATOR_FLAGS', 35 'GYP_GENERATOR_OUTPUT', ) 36 for var in supported_vars: 37 val = file_data.get(var) 38 if val: 39 if var in os.environ: 40 print 'INFO: Environment value for "%s" overrides value in %s.' % ( 41 var, os.path.abspath(file_path) 42 ) 43 else: 44 os.environ[var] = val 45 46 47 def set_environment(): 48 """Sets defaults for GYP_* variables.""" 49 50 if 'SKIP_V8_GYP_ENV' not in os.environ: 51 # Update the environment based on v8.gyp_env 52 gyp_env_path = os.path.join(os.path.dirname(V8_ROOT), 'v8.gyp_env') 53 apply_gyp_environment(gyp_env_path) 54 vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs() 55
