diff --git a/bin/versionbuild.py b/bin/versionbuild.py new file mode 100755 index 000000000..e1c35c457 --- /dev/null +++ b/bin/versionbuild.py @@ -0,0 +1,82 @@ +#!/usr/bin/env python +# vim: tabstop=4 shiftwidth=4 softtabstop=4 + +# Copyright (c) 2013-2014 Rackspace, Inc. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +# implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +Version build stamping script. + +This module generates and inserts a patch component of the semantic version +stamp for Barbican, intended to ensure that a strictly monotonically increasing +version is produced for consecutive development releases. Some repositories +such as yum use this increasing semantic version to select the latest +package for installations. + +This process may not be required if a bug in the 'pbr' library is fixed: +https://bugs.launchpad.net/pbr/+bug/1206730 +""" +import os + +from datetime import datetime +from time import mktime + + +# Determine version of this application. +SETUP_FILE = 'setup.cfg' +VERSIONFILE = os.path.join(SETUP_FILE) +current_dir = os.getcwd() +if current_dir.endswith('bin'): + VERSIONFILE = os.path.join('..', SETUP_FILE) + + +def get_patch(): + """Return a strictly monotonically increasing version patch. + + This method is providing the 'patch' component of the semantic version + stamp for Barbican. It currently returns an epoch in seconds, but + could use a build id from the build system. + """ + dt = datetime.now() + return int(mktime(dt.timetuple())) + + +def update_versionfile(patch): + """Update the 'patch' version information per the provided patch.""" + temp_name = VERSIONFILE + '~' + file_new = open(temp_name, 'w') + try: + with open(VERSIONFILE, 'r') as file_old: + for line in file_old: + if line.startswith('version ='): + subs = line.split('.') + if len(subs) <= 2: + file_new.write(''.join([line[:-1], '.', + str(patch), '\n'])) + else: + subs[2] = str(patch) + file_new.write('.'.join(subs)) + if len(subs) == 3: + file_new.write('\n') + else: + file_new.write(line) + finally: + file_new.close() + os.rename(temp_name, VERSIONFILE) + +if __name__ == '__main__': + patch = get_patch() + print 'patch: ', patch + update_versionfile(patch)