45d350e80d
Instead of having a pretty restrictive module based api for saving logbook objects it is much more friendly and extensible to move toward a more ceilometer-influenced engine and connection based storage backend using stevedore to do the backend loading instead of a custom registration/fetching mechanism. This allows us to provide a base object oriented backend api that can be easily inherited from to allow for customized & pluggable backend storage modules. Implements blueprint stevedore-based-backends Implements blueprint ceilometer-influenced-backends Change-Id: Ib5868d3d9018b7aa1a3354858dcb90ca1a04055d
45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Database setup and migration commands."""
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import os
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from alembic import config as a_config
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from alembic import environment as a_env
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from alembic import script as a_script
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def _alembic_config():
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path = os.path.join(os.path.dirname(__file__), 'alembic', 'alembic.ini')
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return a_config.Config(path)
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def db_sync(connection, revision='head'):
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script = a_script.ScriptDirectory.from_config(_alembic_config())
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def upgrade(rev, context):
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return script._upgrade_revs(revision, rev)
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config = _alembic_config()
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with a_env.EnvironmentContext(config, script, fn=upgrade, as_sql=False,
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starting_rev=None, destination_rev=revision,
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tag=None) as context:
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context.configure(connection=connection)
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context.run_migrations()
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