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1 #!/usr/bin/env python | |
2 # Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
3 # | |
4 # Use of this source code is governed by a BSD-style license | |
5 # that can be found in the LICENSE file in the root of the source | |
6 # tree. An additional intellectual property rights grant can be found | |
7 # in the file PATENTS. All contributing project authors may | |
8 # be found in the AUTHORS file in the root of the source tree. | |
9 | |
10 """ Adds extra patterns to the root .gitignore file. | |
11 | |
12 Reads the contents of the filename given as the first argument and appends | |
13 them to the root .gitignore file. The new entires are intended to be additional | |
14 ignoring patterns, or negating patterns to override existing entries (man | |
15 gitignore for more details). | |
16 """ | |
17 | |
18 import os | |
19 import sys | |
20 | |
21 MODIFY_STRING = '# The following added by %s\n' | |
22 | |
23 | |
24 def main(argv): | |
25 if not argv[1]: | |
26 # Special case; do nothing. | |
27 return 0 | |
28 | |
29 modify_string = MODIFY_STRING % argv[0] | |
30 gitignore_file = os.path.dirname(argv[0]) + '/../../.gitignore' | |
31 lines = open(gitignore_file, 'r').readlines() | |
32 for i, line in enumerate(lines): | |
33 # Look for modify_string in the file to ensure we don't append the extra | |
34 # patterns more than once. | |
35 if line == modify_string: | |
36 lines = lines[:i] | |
37 break | |
38 lines.append(modify_string) | |
39 | |
40 f = open(gitignore_file, 'w') | |
41 f.write(''.join(lines)) | |
42 f.write(open(argv[1], 'r').read()) | |
43 f.close() | |
44 | |
45 if __name__ == '__main__': | |
46 sys.exit(main(sys.argv)) | |
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