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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() | |
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