gyp_skia revision 2d75cc0c163d60276f5f9e39299a4225fd0e2f8d 
1#!/usr/bin/python
2#
3# Copyright (C) 2011 The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#      http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17# This script is a wrapper which invokes gyp with the correct --depth argument,
18# and supports the automatic regeneration of build files if all.gyp is
19# changed (Linux-only).
20
21import glob
22import os
23import shlex
24import sys
25
26script_dir = os.path.dirname(__file__)
27
28# Directory within which we can find the gyp source.
29gyp_source_dir = os.path.join(script_dir, 'third_party', 'externals', 'gyp')
30
31# Directory within which we can find most of Skia's gyp configuration files.
32gyp_config_dir = os.path.join(script_dir, 'gyp')
33
34# Directory within which we want all generated files (including Makefiles)
35# to be written.
36output_dir = os.path.join(os.path.abspath(script_dir), 'out')
37
38sys.path.append(os.path.join(gyp_source_dir, 'pylib'))
39import gyp
40
41def additional_include_files(args=[]):
42  # Determine the include files specified on the command line.
43  # This doesn't cover all the different option formats you can use,
44  # but it's mainly intended to avoid duplicating flags on the automatic
45  # makefile regeneration which only uses this format.
46  specified_includes = set()
47  for arg in args:
48    if arg.startswith('-I') and len(arg) > 2:
49      specified_includes.add(os.path.realpath(arg[2:]))
50
51  result = []
52  def AddInclude(path):
53    if os.path.realpath(path) not in specified_includes:
54      result.append(path)
55
56  return result
57
58if __name__ == '__main__':
59  args = sys.argv[1:]
60
61  # Set CWD to the directory containing this script.
62  # This allows us to launch it from other directories, in spite of gyp's
63  # finickyness about the current working directory.
64  # See http://b.corp.google.com/issue?id=5019517 ('Linux make build
65  # (from out dir) no longer runs skia_gyp correctly')
66  os.chdir(script_dir)
67
68  # This could give false positives since it doesn't actually do real option
69  # parsing.  Oh well.
70  gyp_file_specified = False
71  for arg in args:
72    if arg.endswith('.gyp'):
73      gyp_file_specified = True
74      break
75
76  # If we didn't get a file, then fall back to assuming 'skia.gyp' from the
77  # same directory as the script.
78  # The gypfile must be passed as a relative path, not an absolute path,
79  # or else the gyp code doesn't write into the proper output dir.
80  if not gyp_file_specified:
81    args.append('skia.gyp')
82
83  args.extend(['-I' + i for i in additional_include_files(args)])
84  args.extend(['--depth', '.'])
85
86  # Tell gyp to write the Makefiles into output_dir
87  args.extend(['--generator-output', os.path.abspath(output_dir)])
88
89  # Tell make to write its output into the same dir
90  args.extend(['-Goutput_dir=.'])
91
92  # Special arguments for generating Visual Studio projects:
93  # - msvs_version forces generation of Visual Studio 2010 project so that we
94  #   can use msbuild.exe
95  # - msvs_abspath_output is a workaround for
96  #   http://code.google.com/p/gyp/issues/detail?id=201
97  args.extend(['-Gmsvs_version=2010'])
98  args.extend(['-Gmsvs_abspath_output'])
99
100  print 'Updating projects from gyp files...'
101  sys.stdout.flush()
102
103  # Off we go...
104  sys.exit(gyp.main(args))
105