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#
# 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.
"""Starter script for qinling-db-manage."""
import os
import sys
from alembic import command as alembic_cmd
from alembic import config as alembic_cfg
from alembic import util as alembic_u
from oslo_config import cfg
from oslo_utils import importutils
import six
# We need to import qinling.api.app to
# make sure we register all needed options.
importutils.try_import('qinling.api.app')
CONF = cfg.CONF
def do_alembic_command(config, cmd, *args, **kwargs):
try:
getattr(alembic_cmd, cmd)(config, *args, **kwargs)
except alembic_u.CommandError as e:
alembic_u.err(six.text_type(e))
def do_check_migration(config, _cmd):
do_alembic_command(config, 'branches')
def do_upgrade(config, cmd):
if not CONF.command.revision and not CONF.command.delta:
raise SystemExit('You must provide a revision or relative delta')
revision = CONF.command.revision
if CONF.command.delta:
sign = '+' if CONF.command.name == 'upgrade' else '-'
revision = sign + str(CONF.command.delta)
do_alembic_command(config, cmd, revision, sql=CONF.command.sql)
def do_stamp(config, cmd):
do_alembic_command(
config, cmd,
CONF.command.revision,
sql=CONF.command.sql
)
def do_revision(config, cmd):
do_alembic_command(
config, cmd,
message=CONF.command.message,
autogenerate=CONF.command.autogenerate,
sql=CONF.command.sql
)
def add_command_parsers(subparsers):
for name in ['current', 'history', 'branches']:
parser = subparsers.add_parser(name)
parser.set_defaults(func=do_alembic_command)
parser = subparsers.add_parser('upgrade')
parser.add_argument('--delta', type=int)
parser.add_argument('--sql', action='store_true')
parser.add_argument('revision', nargs='?')
parser.set_defaults(func=do_upgrade)
parser = subparsers.add_parser('stamp')
parser.add_argument('--sql', action='store_true')
parser.add_argument('revision', nargs='?')
parser.set_defaults(func=do_stamp)
parser = subparsers.add_parser('revision')
parser.add_argument('-m', '--message')
parser.add_argument('--autogenerate', action='store_true')
parser.add_argument('--sql', action='store_true')
parser.set_defaults(func=do_revision)
command_opt = cfg.SubCommandOpt('command',
title='Command',
help='Available commands',
handler=add_command_parsers)
CONF.register_cli_opt(command_opt)
def main():
config = alembic_cfg.Config(
os.path.join(os.path.dirname(__file__), 'alembic.ini')
)
config.set_main_option(
'script_location',
'qinling.db.sqlalchemy.migration:alembic_migrations'
)
# attach the Qinling conf to the Alembic conf
config.qinling_config = CONF
CONF(project='qinling')
CONF.command.func(config, CONF.command.name)
if __name__ == '__main__':
sys.exit(main())