# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.

"""Database setup and migration commands."""

import os

from alembic import command
from alembic import config


def _make_alembic_config():
    path = os.path.join(os.path.dirname(__file__), 'alembic', 'alembic.ini')
    return config.Config(path)


def db_sync(connection, revision='head'):
    cfg = _make_alembic_config()
    cfg.attributes['connection'] = connection
    command.upgrade(cfg, revision)