3 # Copyright 2011 The Android Open Source Project
5 # Use of this source code is governed by a BSD-style license that can be
6 # found in the LICENSE file.
8 # This script is a wrapper which invokes gyp with the correct --depth argument,
9 # and supports the automatic regeneration of build files if all.gyp is
10 # changed (Linux-only).
19 script_dir = os.path.abspath(os.path.dirname(__file__))
21 # Directory within which we can find the gyp source.
22 gyp_source_dir = os.path.join(script_dir, 'third_party', 'externals', 'gyp')
24 # Directory within which we can find most of Skia's gyp configuration files.
25 gyp_config_dir = os.path.join(script_dir, 'gyp')
27 # Allow the user to override the directory where gyp should produce its output
28 # Default to the current directory.
29 gyp_output_dir = os.environ.get('SKIA_GYP_OUTPUT_DIR', '.')
31 # Ensure we import our current gyp source's module, not any version
32 # pre-installed in your PYTHONPATH.
33 sys.path.insert(0, os.path.join(gyp_source_dir, 'pylib'))
36 ENVVAR_GYP_GENERATORS = 'GYP_GENERATORS'
37 ENVVAR_GYP_GENERATOR_FLAGS = 'GYP_GENERATOR_FLAGS'
40 def additional_include_files(args=[]):
41 # Determine the include files specified on the command line.
42 # This doesn't cover all the different option formats you can use,
43 # but it's mainly intended to avoid duplicating flags on the automatic
44 # makefile regeneration which only uses this format.
45 specified_includes = set()
47 if arg.startswith('-I') and len(arg) > 2:
48 specified_includes.add(os.path.realpath(arg[2:]))
52 if os.path.realpath(path) not in specified_includes:
55 # Always include common.gypi.
56 # We do this, rather than including common.gypi explicitly in all our gyp
57 # files, so that gyp files we use but do not maintain (e.g.,
58 # third_party/externals/libjpeg/libjpeg.gyp) will include common.gypi too.
59 AddInclude(os.path.join(gyp_config_dir, 'common.gypi'))
63 # Return the directory where all the build files are to be written.
65 # SKIA_OUT can be any directory either as a child of the standard out/
66 # directory or any given location on the file system (e.g. /tmp/skia)
67 output_dir = os.getenv('SKIA_OUT')
70 return os.path.join(os.path.abspath(script_dir), 'out')
72 if os.path.isabs(output_dir):
75 return os.path.join(os.path.abspath(script_dir), output_dir)
78 if __name__ == '__main__':
81 if not os.getenv(ENVVAR_GYP_GENERATORS):
82 if sys.platform.startswith('darwin'):
83 default_gyp_generators = 'ninja,xcode'
84 elif sys.platform.startswith('win'):
85 default_gyp_generators = 'ninja,msvs-ninja'
86 elif sys.platform.startswith('cygwin'):
87 default_gyp_generators = 'ninja,msvs-ninja'
89 default_gyp_generators = 'ninja'
90 os.environ[ENVVAR_GYP_GENERATORS] = default_gyp_generators
91 print ('%s environment variable not set, using default, %s' %
92 (ENVVAR_GYP_GENERATORS, default_gyp_generators))
94 vs_runtime_dll_dirs = None
95 if os.getenv('CHROME_HEADLESS', '0') == '1':
96 if sys.platform.startswith('win') or sys.platform.startswith('cygwin'):
97 chrome_path = os.getenv('CHROME_PATH')
99 sys.path.append(os.path.join(chrome_path, 'build'))
100 sys.path.append(os.path.join(chrome_path, 'tools'))
102 vs_runtime_dll_dirs = \
103 vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs()
105 # Set CWD to the directory containing this script.
106 # This allows us to launch it from other directories, in spite of gyp's
107 # finickyness about the current working directory.
108 # See http://b.corp.google.com/issue?id=5019517 ('Linux make build
109 # (from out dir) no longer runs skia_gyp correctly')
110 os.chdir(os.path.abspath(script_dir))
112 # This could give false positives since it doesn't actually do real option
114 gyp_file_specified = False
116 if arg.endswith('.gyp'):
117 gyp_file_specified = True
120 # If we didn't get a file, then fall back to assuming 'skia.gyp' from the
121 # same directory as the script.
122 # The gypfile must be passed as a relative path, not an absolute path,
123 # or else the gyp code doesn't write into the proper output dir.
124 if not gyp_file_specified:
125 args.append('skia.gyp')
127 args.extend(['-I' + i for i in additional_include_files(args)])
128 args.extend(['--depth', '.'])
130 # Tell gyp to write the build files into output_dir.
131 out_dir = os.path.abspath(get_output_dir())
132 args.extend(['--generator-output', out_dir])
134 # Tell ninja to write its output into the same directory.
135 args.extend(['-Goutput_dir=%s' % gyp_output_dir])
137 # By default, we build 'most' instead of 'all' or 'everything'. See skia.gyp.
138 args.extend(['-Gdefault_target=most'])
140 # Fail if any files specified in the project are missing
141 if sys.platform.startswith('win'):
142 gyp_generator_flags = os.getenv(ENVVAR_GYP_GENERATOR_FLAGS, '')
143 if not 'msvs_error_on_missing_sources' in gyp_generator_flags:
144 os.environ[ENVVAR_GYP_GENERATOR_FLAGS] = (
145 gyp_generator_flags + ' msvs_error_on_missing_sources=1')
147 # GYP is very conservative about how many concurrent linker calls it allows,
148 # to fit in RAM. We don't need to be nearly as conservative as Chrome. We'll
149 # just turn that feature off.
150 os.environ['GYP_LINK_CONCURRENCY'] = '9001'
152 if '--dry-run' in args:
153 args.remove('--dry-run')
154 print gyp_source_dir, ' '.join(args)
161 # This code is copied from Chrome's build/gyp_chromium. It's not clear why
162 # the *_runtime variables are reversed.
163 if vs_runtime_dll_dirs:
164 # The DLLs might be read-only, which will cause an error when attempting to
165 # overwrite them. Make them writeable first.
166 for path, dirs, files in os.walk(out_dir):
168 if f.endswith('.dll'):
169 os.chmod(os.path.join(path, f), stat.S_IWRITE)
171 x64_runtime, x86_runtime = vs_runtime_dll_dirs
172 vs_toolchain.CopyVsRuntimeDlls(
173 os.path.join(os.getenv('CHROME_PATH'), out_dir),
174 (x86_runtime, x64_runtime))