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#!/usr/bin/env python
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from __future__ import print_function
import os
import shutil
import subprocess
import sys
import tempfile
def _Usage():
print('Usage: merge_static_libs OUTPUT_LIB INPUT_LIB [INPUT_LIB]*')
sys.exit(1)
def MergeLibs(in_libs, out_lib):
""" Merges multiple static libraries into one.
in_libs: list of paths to static libraries to be merged
out_lib: path to the static library which will be created from in_libs
"""
if os.name == 'posix':
tempdir = tempfile.mkdtemp()
abs_in_libs = []
for in_lib in in_libs:
abs_in_libs.append(os.path.abspath(in_lib))
curdir = os.getcwd()
os.chdir(tempdir)
objects = []
ar = os.environ.get('AR', 'ar')
for in_lib in abs_in_libs:
proc = subprocess.Popen([ar, '-t', in_lib], stdout=subprocess.PIPE)
proc.wait()
obj_str = proc.communicate()[0]
current_objects = obj_str.rstrip().split('\n')
proc = subprocess.Popen([ar, '-x', in_lib], stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
proc.wait()
if proc.poll() == 0:
# The static library is non-thin, and we extracted objects
for obj in current_objects:
objects.append(os.path.abspath(obj))
elif 'thin archive' in proc.communicate()[0]:
# The static library is thin, so it contains the paths to its objects
for obj in current_objects:
objects.append(obj)
else:
raise Exception('Failed to extract objects from %s.' % in_lib)
os.chdir(curdir)
if not subprocess.call([ar, '-crs', out_lib] + objects) == 0:
raise Exception('Failed to add object files to %s' % out_lib)
shutil.rmtree(tempdir)
elif os.name == 'nt':
subprocess.call(['lib', '/OUT:%s' % out_lib] + in_libs)
else:
raise Exception('Error: Your platform is not supported')
def Main():
if len(sys.argv) < 3:
_Usage()
out_lib = sys.argv[1]
in_libs = sys.argv[2:]
MergeLibs(in_libs, out_lib)
if '__main__' == __name__:
sys.exit(Main())