Enable InitCrashKeys() in Android Breakpad.
[chromium-blink-merge.git] / build / landmine_utils.py
blob773783291f25397eea5a97c6a8e984a71743b13f
1 # Copyright 2013 The Chromium 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 import functools
7 import logging
8 import os
9 import shlex
10 import sys
13 def memoize(default=None):
14 """This decorator caches the return value of a parameterless pure function"""
15 def memoizer(func):
16 val = []
17 @functools.wraps(func)
18 def inner():
19 if not val:
20 ret = func()
21 val.append(ret if ret is not None else default)
22 if logging.getLogger().isEnabledFor(logging.INFO):
23 print '%s -> %r' % (func.__name__, val[0])
24 return val[0]
25 return inner
26 return memoizer
29 @memoize()
30 def IsWindows():
31 return sys.platform in ['win32', 'cygwin']
34 @memoize()
35 def IsLinux():
36 return sys.platform.startswith(('linux', 'freebsd'))
39 @memoize()
40 def IsMac():
41 return sys.platform == 'darwin'
44 @memoize()
45 def gyp_defines():
46 """Parses and returns GYP_DEFINES env var as a dictionary."""
47 return dict(arg.split('=', 1)
48 for arg in shlex.split(os.environ.get('GYP_DEFINES', '')))
50 @memoize()
51 def gyp_msvs_version():
52 return os.environ.get('GYP_MSVS_VERSION', '')
54 @memoize()
55 def distributor():
56 """
57 Returns a string which is the distributed build engine in use (if any).
58 Possible values: 'goma', 'ib', ''
59 """
60 if 'goma' in gyp_defines():
61 return 'goma'
62 elif IsWindows():
63 if 'CHROME_HEADLESS' in os.environ:
64 return 'ib' # use (win and !goma and headless) as approximation of ib
67 @memoize()
68 def platform():
69 """
70 Returns a string representing the platform this build is targetted for.
71 Possible values: 'win', 'mac', 'linux', 'ios', 'android'
72 """
73 if 'OS' in gyp_defines():
74 if 'android' in gyp_defines()['OS']:
75 return 'android'
76 else:
77 return gyp_defines()['OS']
78 elif IsWindows():
79 return 'win'
80 elif IsLinux():
81 return 'linux'
82 else:
83 return 'mac'
86 @memoize()
87 def builder():
88 """
89 Returns a string representing the build engine (not compiler) to use.
90 Possible values: 'make', 'ninja', 'xcode', 'msvs', 'scons'
91 """
92 if 'GYP_GENERATORS' in os.environ:
93 # for simplicity, only support the first explicit generator
94 generator = os.environ['GYP_GENERATORS'].split(',')[0]
95 if generator.endswith('-android'):
96 return generator.split('-')[0]
97 elif generator.endswith('-ninja'):
98 return 'ninja'
99 else:
100 return generator
101 else:
102 if platform() == 'android':
103 # Good enough for now? Do any android bots use make?
104 return 'ninja'
105 elif platform() == 'ios':
106 return 'xcode'
107 elif IsWindows():
108 return 'ninja'
109 elif IsLinux():
110 return 'ninja'
111 elif IsMac():
112 return 'ninja'
113 else:
114 assert False, 'Don\'t know what builder we\'re using!'