blob: 842be18c84dfb4e05a35e25c76dcaad9885646eb [file] [log] [blame]
borenet@google.comefb1d772012-10-10 19:45:51 +00001#!/usr/bin/env python
2# Copyright (c) 2012 The Chromium Authors. All rights reserved.
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6import os
7import shutil
8import subprocess
9import sys
10import tempfile
11
12def _Usage():
13 print 'Usage: merge_static_libs OUTPUT_LIB INPUT_LIB [INPUT_LIB]*'
14 sys.exit(1)
15
16def MergeLibs(in_libs, out_lib):
17 """ Merges multiple static libraries into one.
18
19 in_libs: list of paths to static libraries to be merged
20 out_lib: path to the static library which will be created from in_libs
21 """
22 if os.name == 'posix':
23 tempdir = tempfile.mkdtemp()
24 abs_in_libs = []
25 for in_lib in in_libs:
26 abs_in_libs.append(os.path.abspath(in_lib))
27 curdir = os.getcwd()
28 os.chdir(tempdir)
29 objects = []
30 ar = os.environ.get('AR', 'ar')
31 for in_lib in abs_in_libs:
32 proc = subprocess.Popen([ar, '-t', in_lib], stdout=subprocess.PIPE)
33 proc.wait()
34 obj_str = proc.communicate()[0]
35 current_objects = obj_str.rstrip().split('\n')
36 proc = subprocess.Popen([ar, '-x', in_lib], stdout=subprocess.PIPE,
37 stderr=subprocess.STDOUT)
38 proc.wait()
39 if proc.poll() == 0:
40 # The static library is non-thin, and we extracted objects
41 for object in current_objects:
42 objects.append(os.path.abspath(object))
43 elif 'thin archive' in proc.communicate()[0]:
44 # The static library is thin, so it contains the paths to its objects
45 for object in current_objects:
46 objects.append(object)
47 else:
48 raise Exception('Failed to extract objects from %s.' % in_lib)
49 os.chdir(curdir)
50 if not subprocess.call([ar, '-crs', out_lib] + objects) == 0:
51 raise Exception('Failed to add object files to %s' % out_lib)
52 shutil.rmtree(tempdir)
53 elif os.name == 'nt':
54 subprocess.call(['lib', '/OUT:%s' % out_lib] + in_libs)
55 else:
56 raise Exception('Error: Your platform is not supported')
57
58def Main():
59 if len(sys.argv) < 3:
60 _Usage()
61 out_lib = sys.argv[1]
62 in_libs = sys.argv[2:]
63 MergeLibs(in_libs, out_lib)
64
65if '__main__' == __name__:
66 sys.exit(Main())