119 lines
3.2 KiB
Python
119 lines
3.2 KiB
Python
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#!/usr/bin/env python
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# Copyright (c) 2011 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# TODO(slightlyoff): move to using shared version of this script.
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'''This script makes it easy to combine libs and object files to a new lib,
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optionally removing some of the object files in the input libs by regular
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expression matching.
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For usage information, run the script with a --help argument.
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'''
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import optparse
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import os
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import re
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import subprocess
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import sys
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def Shell(*args):
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'''Runs the program and args in args, returns the output from the program.'''
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process = subprocess.Popen(args,
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stdin = None,
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stdout = subprocess.PIPE,
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stderr = subprocess.STDOUT)
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output = process.stdout.readlines()
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process.wait()
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retcode = process.returncode
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if retcode != 0:
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raise RuntimeError('%s exited with status %d' % (args[0], retcode))
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return output
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def CollectRemovals(remove_re, inputs):
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'''Returns a list of all object files in inputs that match remove_re.'''
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removals = []
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for input in inputs:
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output = Shell('lib.exe', '/list', input)
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for line in output:
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line = line.rstrip()
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if remove_re.search(line):
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removals.append(line)
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return removals
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def CombineLibraries(output, remove_re, inputs):
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'''Combines all the libraries and objects in inputs, while removing any
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object files that match remove_re.
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'''
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removals = []
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if remove_re:
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removals = CollectRemovals(remove_re, inputs)
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if len(removals) > 0:
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print 'Removals: ', removals
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args = ['lib.exe', '/out:%s' % output]
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args += ['/remove:%s' % obj for obj in removals]
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args += inputs
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Shell(*args)
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USAGE = '''usage: %prog [options] <lib or obj>+
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Combines input libraries or objects into an output library, while removing
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any object file (in the input libraries) that matches a given regular
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expression.
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'''
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def GetOptionParser():
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parser = optparse.OptionParser(USAGE)
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parser.add_option('-o', '--output', dest = 'output',
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help = 'write to this output library')
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parser.add_option('-r', '--remove', dest = 'remove',
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help = 'object files matching this regexp will be removed '
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'from the output library')
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return parser
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def Main():
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'''Main function for this script'''
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parser = GetOptionParser()
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(opt, args) = parser.parse_args()
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output = opt.output
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remove = opt.remove
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if not output:
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parser.error('You must specify an output file')
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if not args:
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parser.error('You must specify at least one object or library')
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output = output.strip()
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if remove:
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remove = remove.strip()
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if remove:
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try:
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remove_re = re.compile(opt.remove)
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except:
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parser.error('%s is not a valid regular expression' % opt.remove)
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else:
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remove_re = None
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if sys.platform != 'win32' and sys.platform != 'cygwin':
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parser.error('this script only works on Windows for now')
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# If this is set, we can't capture lib.exe's output.
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if 'VS_UNICODE_OUTPUT' in os.environ:
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del os.environ['VS_UNICODE_OUTPUT']
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CombineLibraries(output, remove_re, args)
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return 0
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if __name__ == '__main__':
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sys.exit(Main())
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