psutil

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#!/usr/bin/env python3
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# Copyright (c) 2009 Giampaolo Rodola'. 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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"""Prints releases' timeline in RST format."""
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import shlex
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import subprocess
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entry = """\
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- {date}:
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  `{ver} <https://pypi.org/project/psutil/{ver}/#files>`__ -
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  `what's new <https://github.com/giampaolo/psutil/blob/master/HISTORY.rst#{nodotver}>`__ -
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  `diff <https://github.com/giampaolo/psutil/compare/{prevtag}...{tag}#files_bucket>`__"""  # NOQA
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def sh(cmd):
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    return subprocess.check_output(
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        shlex.split(cmd), universal_newlines=True
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    ).strip()
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def get_tag_date(tag):
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    out = sh(r"git log -1 --format=%ai {}".format(tag))
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    return out.split(' ')[0]
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def main():
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    releases = []
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    out = sh("git tag")
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    for line in out.split('\n'):
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        tag = line.split(' ')[0]
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        ver = tag.replace('release-', '')
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        nodotver = ver.replace('.', '')
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        date = get_tag_date(tag)
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        releases.append((tag, ver, nodotver, date))
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    releases.sort(reverse=True)
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    for i, rel in enumerate(releases):
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        tag, ver, nodotver, date = rel
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        try:
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            prevtag = releases[i + 1][0]
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        except IndexError:
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            # get first commit
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            prevtag = sh("git rev-list --max-parents=0 HEAD")
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        print(entry.format(**locals()))
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if __name__ == '__main__':
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    main()
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