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version.py
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version.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# version.py
#
# Copyright 2014 Neil Williams <[email protected]>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import argparse
import re
import subprocess # nosec - internal
import os
import sys
# pylint: disable=superfluous-parens,too-many-locals
def version_tag(ref=None):
"""
Parses the git status to determine if this is a git tag
or a developer commit and builds a version string combining
the two. If there is no git directory, relies on this being
a directory created from the tarball created by setup.py when
it uses this script and retrieves the original version string
from that.
:return: a version string based on the tag and short hash
"""
args = ["git", "describe"]
if ref is not None:
args.append(ref)
if os.path.exists("./.git"):
pattern = re.compile(r"(?P<tag>.+)\.(?P<commits>\d+)\.g(?P<hash>[abcdef\d]+)")
describe = (
subprocess.check_output(args) # nosec - internal
.strip()
.decode("utf-8")
.replace("-", ".")
)
m = pattern.match(describe)
if m is None:
return describe
else:
d = m.groupdict()
return "%s.%04d.g%s" % (d["tag"], int(d["commits"]), d["hash"])
if os.path.exists("debian/changelog"):
return (
subprocess.check_output( # nosec - internal
("dpkg-parsechangelog", "--show-field", "Version")
)
.strip()
.decode("utf-8")
.split("-")[0]
)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("ref", nargs="?", default=None, help="reference")
options = parser.parse_args()
print(version_tag(options.ref))
return 0
if __name__ == "__main__":
sys.exit(main())