be849df8fa
This patch fixes and enables: * F401 unused imports * H301 one import per line * H302 import only modules * H306 imports not in alphabetical order Change-Id: I6f7f92004844184dc4bbea8c3a1ddfc196310b39
71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
|
|
# Copyright 2010 United States Government as represented by the
|
|
# Administrator of the National Aeronautics and Space Administration.
|
|
# Copyright 2011 Piston Cloud Computing, Inc.
|
|
# All Rights Reserved.
|
|
#
|
|
# 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.
|
|
"""Session management functions."""
|
|
|
|
import os
|
|
|
|
from migrate import exceptions as versioning_exceptions
|
|
from migrate.versioning import api as versioning_api
|
|
|
|
from muranoapi.common import config
|
|
from muranoapi.db import migrate_repo
|
|
from muranoapi.openstack.common.db.sqlalchemy import session as db_session
|
|
from muranoapi.openstack.common.gettextutils import _ # noqa
|
|
from muranoapi.openstack.common import log as logging
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
CONF = config.CONF
|
|
|
|
|
|
def get_session(autocommit=True, expire_on_commit=False):
|
|
s = _create_facade_lazily().get_session(autocommit=autocommit,
|
|
expire_on_commit=expire_on_commit)
|
|
if s:
|
|
if CONF.database.auto_create:
|
|
log.info(_('auto-creating DB'))
|
|
_auto_create_db()
|
|
else:
|
|
log.info(_('not auto-creating DB'))
|
|
return s
|
|
|
|
|
|
def _auto_create_db():
|
|
repo_path = os.path.abspath(os.path.dirname(migrate_repo.__file__))
|
|
try:
|
|
versioning_api.upgrade(CONF.database.connection, repo_path)
|
|
except versioning_exceptions.DatabaseNotControlledError:
|
|
versioning_api.version_control(CONF.database.connection, repo_path)
|
|
versioning_api.upgrade(CONF.database.connection, repo_path)
|
|
|
|
|
|
_FACADE = None
|
|
|
|
|
|
def _create_facade_lazily():
|
|
global _FACADE
|
|
|
|
if _FACADE is None:
|
|
_FACADE = db_session.EngineFacade(
|
|
CONF.database.connection,
|
|
**dict(CONF.database.iteritems())
|
|
)
|
|
return _FACADE
|