86 lines
2.9 KiB
Python
Executable File
86 lines
2.9 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (c) 2013-2014 Rackspace, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Version build stamping script.
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This module generates and inserts a patch component of the semantic version
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stamp for Barbican, intended to ensure that a strictly monotonically increasing
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version is produced for consecutive development releases. Some repositories
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such as yum use this increasing semantic version to select the latest
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package for installations.
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This process may not be required if a bug in the 'pbr' library is fixed:
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https://bugs.launchpad.net/pbr/+bug/1206730
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"""
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import os
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import re
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from datetime import datetime
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from time import mktime
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# Determine version of this application.
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SETUP_FILE = 'setup.cfg'
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VERSIONFILE = os.path.join(SETUP_FILE)
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current_dir = os.getcwd()
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if current_dir.endswith('bin'):
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VERSIONFILE = os.path.join('..', SETUP_FILE)
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def get_patch():
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"""Return a strictly monotonically increasing version patch.
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This method is providing the 'patch' component of the semantic version
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stamp for Barbican. It currently returns an epoch in seconds, but
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could use a build id from the build system.
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"""
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dt = datetime.now()
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return int(mktime(dt.timetuple()))
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def update_versionfile(patch):
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"""Update the version information in setup.cfg per the provided patch.
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PBR will generate a version stamp based on the version attribute in the
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setup.cfg file, appending information such as git SHA code to it. To make
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this generated version friendly to packaging systems such as YUM, this
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function appends the provided patch to the base version. This function
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assumes the base version in setup.cfg is of the form 'xx.yy' such as
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'2014.2'. It will replace a third element found after this base with the
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provided patch.
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"""
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version_regex = re.compile(r'(^\s*version\s*=\s*\w*\.\w*)(.*)')
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temp_name = VERSIONFILE + '~'
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with open(VERSIONFILE, 'r') as file_old:
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with open(temp_name, 'w') as file_new:
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for line in file_old:
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match = version_regex.match(line)
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if match:
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file_new.write(''.join(
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[match.group(1).strip(), '.', str(patch), '\n']))
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else:
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file_new.write(line)
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# Replace the original setup.cfg with the modified one.
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os.rename(temp_name, VERSIONFILE)
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if __name__ == '__main__':
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patch = get_patch()
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update_versionfile(patch)
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