1#!/usr/bin/env python
2
3# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
4#
5# Use of this source code is governed by a BSD-style license
6# that can be found in the LICENSE file in the root of the source
7# tree. An additional intellectual property rights grant can be found
8# in the file PATENTS.  All contributing project authors may
9# be found in the AUTHORS file in the root of the source tree.
10
11# Searches for libraries or object files on the specified path and merges them
12# them into a single library. Assumes ninja is used on all platforms.
13
14import fnmatch
15import os
16import subprocess
17import sys
18
19IGNORE_PATTERNS = ['do_not_use', 'protoc']
20
21def FindFiles(path, pattern):
22  """Finds files matching |pattern| under |path|.
23
24  Returns a list of file paths matching |pattern|, by walking the directory tree
25  under |path|. Filenames containing the string 'do_not_use' or 'protoc' are
26  excluded.
27
28  Args:
29    path: The root path for the search.
30    pattern: A shell-style wildcard pattern to match filenames against.
31        (e.g. '*.a')
32
33  Returns:
34    A list of file paths, relative to the current working directory.
35  """
36  files = []
37  for root, _, filenames in os.walk(path):
38    for filename in fnmatch.filter(filenames, pattern):
39      if filename not in IGNORE_PATTERNS:
40        # We use the relative path here to avoid "argument list too
41        # long" errors on Linux.  Note: This doesn't always work, so
42        # we use the find command on Linux.
43        files.append(os.path.relpath(os.path.join(root, filename)))
44  return files
45
46
47def main(argv):
48  if len(argv) != 3:
49    sys.stderr.write('Usage: ' + argv[0] + ' <search_path> <output_lib>\n')
50    return 1
51
52  search_path = os.path.normpath(argv[1])
53  output_lib = os.path.normpath(argv[2])
54
55  if not os.path.exists(search_path):
56    sys.stderr.write('search_path does not exist: %s\n' % search_path)
57    return 1
58
59  if os.path.isfile(output_lib):
60    os.remove(output_lib)
61
62  if sys.platform.startswith('linux'):
63    pattern = '*.o'
64    cmd = 'ar crs'
65  elif sys.platform == 'darwin':
66    pattern = '*.a'
67    cmd = 'libtool -static -v -o '
68  elif sys.platform == 'win32':
69    pattern = '*.lib'
70    cmd = 'lib /OUT:'
71  else:
72    sys.stderr.write('Platform not supported: %r\n\n' % sys.platform)
73    return 1
74
75  if sys.platform.startswith('linux'):
76    cmd = ' '.join(['find', search_path, '-name "' + pattern + '"' +
77                    ' -and -not -name ' +
78                    ' -and -not -name '.join(IGNORE_PATTERNS) +
79                    ' -exec', cmd, output_lib, '{} +'])
80  else:
81    cmd = ' '.join([cmd + output_lib] + FindFiles(search_path, pattern))
82  print cmd
83  subprocess.check_call(cmd, shell=True)
84  return 0
85
86if __name__ == '__main__':
87  sys.exit(main(sys.argv))
88