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epoger@google.com1e8e0562011-06-07 14:48:41 +00001#!/usr/bin/python
epoger@google.comfd03db02011-07-28 14:24:55 +00002
3# Copyright 2011 The Android Open Source Project
epoger@google.com1e8e0562011-06-07 14:48:41 +00004#
epoger@google.comfd03db02011-07-28 14:24:55 +00005# Use of this source code is governed by a BSD-style license that can be
6# found in the LICENSE file.
epoger@google.com1e8e0562011-06-07 14:48:41 +00007
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).
11
12import glob
13import os
djsollen@google.comab5e9112012-11-28 14:11:41 +000014import platform
epoger@google.com1e8e0562011-06-07 14:48:41 +000015import shlex
16import sys
17
18script_dir = os.path.dirname(__file__)
19
20# Directory within which we can find the gyp source.
epoger@google.com0ae27e02011-06-14 16:01:04 +000021gyp_source_dir = os.path.join(script_dir, 'third_party', 'externals', 'gyp')
epoger@google.com1e8e0562011-06-07 14:48:41 +000022
23# Directory within which we can find most of Skia's gyp configuration files.
24gyp_config_dir = os.path.join(script_dir, 'gyp')
25
digit@google.com48af8a02012-07-30 16:48:13 +000026# Ensure we import our current gyp source's module, not any version
27# pre-installed in your PYTHONPATH.
28sys.path.insert(0, os.path.join(gyp_source_dir, 'pylib'))
epoger@google.com1e8e0562011-06-07 14:48:41 +000029import gyp
30
31def additional_include_files(args=[]):
32 # Determine the include files specified on the command line.
33 # This doesn't cover all the different option formats you can use,
34 # but it's mainly intended to avoid duplicating flags on the automatic
35 # makefile regeneration which only uses this format.
36 specified_includes = set()
37 for arg in args:
38 if arg.startswith('-I') and len(arg) > 2:
39 specified_includes.add(os.path.realpath(arg[2:]))
40
41 result = []
42 def AddInclude(path):
43 if os.path.realpath(path) not in specified_includes:
44 result.append(path)
45
epoger@google.comaa3b6a92012-03-16 13:52:49 +000046 # Always include common.gypi.
47 # We do this, rather than including common.gypi explicitly in all our gyp
48 # files, so that gyp files we use but do not maintain (e.g.,
49 # third_party/externals/libjpeg/libjpeg.gyp) will include common.gypi too.
50 AddInclude(os.path.join(gyp_config_dir, 'common.gypi'))
51
epoger@google.com1e8e0562011-06-07 14:48:41 +000052 return result
53
djsollen@google.comab5e9112012-11-28 14:11:41 +000054# Return the directory where all generated files (including Makefiles) are to
55# be written.
56def get_output_dir():
57
58 # SKIA_OUT can be any directory either as a child of the standard out/
59 # directory or any given location on the file system (e.g. /tmp/skia)
60 output_dir = os.getenv('SKIA_OUT')
61
62 if not output_dir:
63 return os.path.join(os.path.abspath(script_dir), 'out')
64
65 if (os.name != 'posix' or
66 (sys.platform.startswith('darwin') and
67 (not os.getenv('GYP_GENERATORS') or
68 'make' not in os.getenv('GYP_GENERATORS')))):
69 print 'ERROR: variable SKIA_OUT is not valid on Mac (using xcodebuild)' \
70 ' or Windows'
71 sys.exit(-1);
72
73 if os.path.isabs(output_dir):
74 return output_dir
75 else:
76 return os.path.join(os.path.abspath(script_dir), output_dir)
77
78
epoger@google.com1e8e0562011-06-07 14:48:41 +000079if __name__ == '__main__':
80 args = sys.argv[1:]
81
epoger@google.com2d75cc02011-07-14 17:31:33 +000082 # Set CWD to the directory containing this script.
83 # This allows us to launch it from other directories, in spite of gyp's
84 # finickyness about the current working directory.
85 # See http://b.corp.google.com/issue?id=5019517 ('Linux make build
86 # (from out dir) no longer runs skia_gyp correctly')
epoger@google.com7fd589c2011-07-14 18:55:12 +000087 os.chdir(os.path.abspath(script_dir))
epoger@google.com2d75cc02011-07-14 17:31:33 +000088
epoger@google.com1e8e0562011-06-07 14:48:41 +000089 # This could give false positives since it doesn't actually do real option
90 # parsing. Oh well.
91 gyp_file_specified = False
92 for arg in args:
93 if arg.endswith('.gyp'):
94 gyp_file_specified = True
95 break
96
97 # If we didn't get a file, then fall back to assuming 'skia.gyp' from the
98 # same directory as the script.
epoger@google.com2d75cc02011-07-14 17:31:33 +000099 # The gypfile must be passed as a relative path, not an absolute path,
100 # or else the gyp code doesn't write into the proper output dir.
epoger@google.com1e8e0562011-06-07 14:48:41 +0000101 if not gyp_file_specified:
epoger@google.com2d75cc02011-07-14 17:31:33 +0000102 args.append('skia.gyp')
epoger@google.com1e8e0562011-06-07 14:48:41 +0000103
104 args.extend(['-I' + i for i in additional_include_files(args)])
105 args.extend(['--depth', '.'])
106
107 # Tell gyp to write the Makefiles into output_dir
djsollen@google.comab5e9112012-11-28 14:11:41 +0000108 args.extend(['--generator-output', os.path.abspath(get_output_dir())])
epoger@google.com1e8e0562011-06-07 14:48:41 +0000109
110 # Tell make to write its output into the same dir
111 args.extend(['-Goutput_dir=.'])
112
epoger@google.com9c875d32012-10-18 16:10:56 +0000113 # By default, we build 'most' instead of 'all' or 'everything'. See skia.gyp.
114 args.extend(['-Gdefault_target=most'])
115
epoger@google.com1e8e0562011-06-07 14:48:41 +0000116 print 'Updating projects from gyp files...'
117 sys.stdout.flush()
118
119 # Off we go...
120 sys.exit(gyp.main(args))