58 lines
1.8 KiB
Python
Executable File
58 lines
1.8 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Copyright 2015 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 is used to generate version string for packager."""
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import platform
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import subprocess
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# To support python version before 2.7, which does not have
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# subprocess.check_output.
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if 'check_output' not in dir(subprocess):
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def check_output_implementation(*popenargs, **kwargs):
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"""Implement check_output if it is not available."""
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if 'stdout' in kwargs:
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raise ValueError('stdout argument not allowed, it will be overridden.')
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process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
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output, unused_err = process.communicate()
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retcode = process.poll()
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if retcode:
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cmd = kwargs.get('args')
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if cmd is None:
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cmd = popenargs[0]
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raise subprocess.CalledProcessError(retcode, cmd)
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return output
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subprocess.check_output = check_output_implementation
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if __name__ == '__main__':
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git = 'git'
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if platform.system() == 'Windows':
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git += '.bat'
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try:
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version_tag = subprocess.check_output(
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[git, 'tag', '--points-at', 'HEAD'],
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stderr=subprocess.STDOUT).rstrip()
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except subprocess.CalledProcessError as e:
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# git tag --points-at is not supported in old versions of git. Just ignore
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# version_tag in this case.
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version_tag = None
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try:
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version_hash = subprocess.check_output(
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[git, 'rev-parse', '--short', 'HEAD'],
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stderr=subprocess.STDOUT).rstrip()
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except subprocess.CalledProcessError as e:
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version_hash = 'unknown-version'
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if version_tag:
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print '{0}-{1}'.format(version_tag, version_hash)
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else:
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print version_hash
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