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#!/usr/bin/env python
# Copyright (c) 2013 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.
"""Make a symlink and optionally touch a file (to handle dependencies)."""
import errno
import optparse
import os.path
import sys
def Main(argv):
parser = optparse.OptionParser()
parser.add_option('-f', '--force', action='store_true')
parser.add_option('--touch')
options, args = parser.parse_args(argv)
if len(args) < 2:
parser.error('at least two arguments required.')
target = args[-1]
sources = args[:-1]
for s in sources:
t = os.path.join(target, os.path.basename(s))
try:
os.symlink(s, t)
except OSError, e:
if e.errno == errno.EEXIST and options.force:
os.remove(t)
os.symlink(s, t)
else:
raise
if options.touch:
with open(options.touch, 'w') as f:
pass
if __name__ == '__main__':
sys.exit(Main(sys.argv))
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