53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
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#!/usr/bin/python
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#
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# Copyright 2018 Google Inc. All rights reserved.
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#
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file or at
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# https://developers.google.com/open-source/licenses/bsd
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"""This script extracts a version or release notes from the changelog."""
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from __future__ import print_function
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import argparse
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import re
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import sys
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--release_notes', action='store_true',
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help='Print the latest release notes from the changelog')
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parser.add_argument('--version', action='store_true',
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help='Print the latest version from the changelog')
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args = parser.parse_args()
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with open('CHANGELOG.md', 'r') as f:
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contents = f.read()
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# This excludes the header line with the release name and date, to match the
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# style of releases done before the automation was introduced.
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latest_entry = re.split(r'^(?=## \[)', contents, flags=re.M)[1]
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lines = latest_entry.strip().split('\n')
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first_line = lines[0]
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release_notes = '\n'.join(lines[1:])
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match = re.match(r'^## \[(.*)\]', first_line)
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if not match:
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raise RuntimeError('Unable to parse first line of CHANGELOG.md!')
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version = match[1]
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if not version.startswith('v'):
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version = 'v' + version
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if args.version:
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print(version)
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if args.release_notes:
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print(release_notes)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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