# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2010-2011 OpenStack LLC.
# 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.

import optparse


def add_options(parser):
    """
    Adds any configuration options that the db layer might have.

    :param parser: An optparse.OptionParser object
    :retval None
    """
    help_text = "The following configuration options are specific to the "\
                "Glance image registry database."

    group = optparse.OptionGroup(parser, "Registry Database Options",
                                 help_text)
    group.add_option('--sql-connection', metavar="CONNECTION",
                     default=None,
                     help="A valid SQLAlchemy connection string for the "
                          "registry database. Default: %default")
    parser.add_option_group(group)
