c0668016dd
`mercurial version` doesn't always print the version number. `mercurial --version` does. Use the latter.
25 lines
697 B
Python
25 lines
697 B
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this,
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import unicode_literals
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import os
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import re
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import subprocess
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from distutils.version import LooseVersion
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def get_hg_version(hg):
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"""Obtain the version of the Mercurial client."""
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env = os.environ.copy()
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env[b'HGPLAIN'] = b'1'
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info = subprocess.check_output([hg, '--version'], env=env)
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match = re.search('version ([^\+\)]+)', info)
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if not match:
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raise Exception('Unable to identify Mercurial version.')
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return LooseVersion(match.group(1))
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