3 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
4 # Use of this source code is governed by a BSD-style license that can be
5 # found in the LICENSE file.
7 # This script is wrapper for Chromium that adds some support for how GYP
8 # is invoked by Chromium beyond what can be done in the gclient hooks.
17 script_dir
= os
.path
.dirname(os
.path
.realpath(__file__
))
18 chrome_src
= os
.path
.abspath(os
.path
.join(script_dir
, os
.pardir
))
20 sys
.path
.insert(0, os
.path
.join(chrome_src
, 'tools', 'gyp', 'pylib'))
23 # Add paths so that pymod_do_main(...) can import files.
24 sys
.path
.insert(1, os
.path
.join(chrome_src
, 'tools', 'generate_shim_headers'))
25 sys
.path
.insert(1, os
.path
.join(chrome_src
, 'tools', 'grit'))
26 sys
.path
.insert(1, os
.path
.join(chrome_src
, 'chrome', 'tools', 'build'))
27 sys
.path
.insert(1, os
.path
.join(chrome_src
, 'native_client', 'build'))
28 sys
.path
.insert(1, os
.path
.join(chrome_src
, 'third_party', 'WebKit',
29 'Source', 'WebCore', 'WebCore.gyp', 'scripts'))
32 # On Windows, Psyco shortens warm runs of build/gyp_chromium by about
33 # 20 seconds on a z600 machine with 12 GB of RAM, from 90 down to 70
34 # seconds. Conversely, memory usage of build/gyp_chromium with Psyco
35 # maxes out at about 158 MB vs. 132 MB without it.
37 # Psyco uses native libraries, so we need to load a different
38 # installation depending on which OS we are running under. It has not
39 # been tested whether using Psyco on our Mac and Linux builds is worth
40 # it (the GYP running time is a lot shorter, so the JIT startup cost
41 # may not be worth it).
42 if sys
.platform
== 'win32':
44 sys
.path
.insert(0, os
.path
.join(chrome_src
, 'third_party', 'psyco_win32'))
51 def additional_include_files(args
=[]):
53 Returns a list of additional (.gypi) files to include, without
54 duplicating ones that are already specified on the command line.
56 # Determine the include files specified on the command line.
57 # This doesn't cover all the different option formats you can use,
58 # but it's mainly intended to avoid duplicating flags on the automatic
59 # makefile regeneration which only uses this format.
60 specified_includes
= set()
62 if arg
.startswith('-I') and len(arg
) > 2:
63 specified_includes
.add(os
.path
.realpath(arg
[2:]))
67 if os
.path
.realpath(path
) not in specified_includes
:
70 # Always include common.gypi.
71 AddInclude(os
.path
.join(script_dir
, 'common.gypi'))
73 # Optionally add supplemental .gypi files if present.
74 supplements
= glob
.glob(os
.path
.join(chrome_src
, '*', 'supplement.gypi'))
75 for supplement
in supplements
:
76 AddInclude(supplement
)
80 if __name__
== '__main__':
83 # Use the Psyco JIT if available.
86 print "Enabled Psyco JIT."
88 # Fall back on hermetic python if we happen to get run under cygwin.
89 # TODO(bradnelson): take this out once this issue is fixed:
90 # http://code.google.com/p/gyp/issues/detail?id=177
91 if sys
.platform
== 'cygwin':
92 python_dir
= os
.path
.join(chrome_src
, 'third_party', 'python_26')
93 env
= os
.environ
.copy()
94 env
['PATH'] = python_dir
+ os
.pathsep
+ env
.get('PATH', '')
96 [os
.path
.join(python_dir
, 'python.exe')] + sys
.argv
,
99 sys
.exit(p
.returncode
)
101 gyp_helper
.apply_chromium_gyp_env()
103 # This could give false positives since it doesn't actually do real option
105 gyp_file_specified
= False
107 if arg
.endswith('.gyp'):
108 gyp_file_specified
= True
111 # If we didn't get a file, check an env var, and then fall back to
112 # assuming 'all.gyp' from the same directory as the script.
113 if not gyp_file_specified
:
114 gyp_file
= os
.environ
.get('CHROMIUM_GYP_FILE')
116 # Note that CHROMIUM_GYP_FILE values can't have backslashes as
117 # path separators even on Windows due to the use of shlex.split().
118 args
.extend(shlex
.split(gyp_file
))
120 args
.append(os
.path
.join(script_dir
, 'all.gyp'))
122 args
.extend(['-I' + i
for i
in additional_include_files(args
)])
124 # There shouldn't be a circular dependency relationship between .gyp files,
125 # but in Chromium's .gyp files, on non-Mac platforms, circular relationships
126 # currently exist. The check for circular dependencies is currently
127 # bypassed on other platforms, but is left enabled on the Mac, where a
128 # violation of the rule causes Xcode to misbehave badly.
129 # TODO(mark): Find and kill remaining circular dependencies, and remove this
130 # option. http://crbug.com/35878.
131 # TODO(tc): Fix circular dependencies in ChromiumOS then add linux2 to the
133 if sys
.platform
not in ('darwin',):
134 args
.append('--no-circular-check')
136 # If CHROMIUM_GYP_SYNTAX_CHECK is set to 1, it will invoke gyp with --check
137 # to enfore syntax checking.
138 syntax_check
= os
.environ
.get('CHROMIUM_GYP_SYNTAX_CHECK')
139 if syntax_check
and int(syntax_check
):
140 args
.append('--check')
142 print 'Updating projects from gyp files...'
146 sys
.exit(gyp
.main(args
))