mirror of
https://github.com/scottlamb/moonfire-nvr.git
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69 lines
1.9 KiB
Python
Executable File
69 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python3
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# This file is part of Moonfire NVR, a security camera network video recorder.
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# Copyright (C) 2021 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
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# SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception
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"""Checks that expected header lines are present.
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Call in either of two modes:
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has-license.py FILE [...]
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check if all files with certain extensions have expected lines.
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This is useful in a CI action.
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has-license.py
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check if stdin has expected lines.
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This is useful in a pre-commit hook, as in
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git-format-staged --no-write --formatter '.../has-license.py' '*.rs'
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"""
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import re
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import sys
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# Filenames matching this regexp are expected to have the header lines.
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FILENAME_MATCHER = re.compile(r'.*\.([jt]sx?|html|css|py|rs|sh|sql)$')
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MAX_LINE_COUNT = 10
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EXPECTED_LINES = [
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re.compile(r'This file is part of Moonfire NVR, a security camera network video recorder\.'),
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re.compile(r'Copyright \(C\) 20\d{2} The Moonfire NVR Authors; see AUTHORS and LICENSE\.txt\.'),
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re.compile(r'SPDX-License-Identifier: GPL-v3\.0-or-later WITH GPL-3\.0-linking-exception\.?'),
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]
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def has_license(f):
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"""Returns if all of EXPECTED_LINES are present within the first
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MAX_LINE_COUNT lines of f."""
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needed = set(EXPECTED_LINES)
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i = 0
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for line in f:
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if i == 10:
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break
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i += 1
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for e in needed:
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if e.search(line):
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needed.remove(e)
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break
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if not needed:
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return True
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return False
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def file_has_license(filename):
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with open(filename, 'r') as f:
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return has_license(f)
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def main(args):
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if not args:
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sys.exit(0 if has_license(sys.stdin) else 1)
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missing = [f for f in args
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if FILENAME_MATCHER.match(f) and not file_has_license(f)]
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if missing:
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print('The following files are missing expected copyright/license headers:', file=sys.stderr)
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print('\n'.join(missing), file=sys.stderr)
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sys.exit(1)
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if __name__ == '__main__':
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main(sys.argv[1:])
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