168 lines
5.2 KiB
Python
168 lines
5.2 KiB
Python
# Copyright 2012 New Dream Network, LLC (DreamHost)
|
|
#
|
|
# 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.
|
|
#
|
|
# @author: Mark McClain, DreamHost
|
|
|
|
import os
|
|
|
|
from alembic import command as alembic_command
|
|
from alembic import config as alembic_config
|
|
from alembic import script as alembic_script
|
|
from alembic import util as alembic_util
|
|
from oslo.config import cfg
|
|
|
|
|
|
HEAD_FILENAME = 'HEAD'
|
|
|
|
|
|
_core_opts = [
|
|
cfg.StrOpt('core_plugin',
|
|
default='',
|
|
help=_('Neutron plugin provider module')),
|
|
cfg.ListOpt('service_plugins',
|
|
default=[],
|
|
help=_("The service plugins Neutron will use")),
|
|
]
|
|
|
|
_quota_opts = [
|
|
cfg.StrOpt('quota_driver',
|
|
default='',
|
|
help=_('Neutron quota driver class')),
|
|
]
|
|
|
|
_db_opts = [
|
|
cfg.StrOpt('connection',
|
|
deprecated_name='sql_connection',
|
|
default='',
|
|
help=_('URL to database')),
|
|
]
|
|
|
|
CONF = cfg.ConfigOpts()
|
|
CONF.register_opts(_core_opts)
|
|
CONF.register_opts(_db_opts, 'database')
|
|
CONF.register_opts(_quota_opts, 'QUOTAS')
|
|
|
|
|
|
def do_alembic_command(config, cmd, *args, **kwargs):
|
|
try:
|
|
getattr(alembic_command, cmd)(config, *args, **kwargs)
|
|
except alembic_util.CommandError as e:
|
|
alembic_util.err(str(e))
|
|
|
|
|
|
def do_check_migration(config, cmd):
|
|
do_alembic_command(config, 'branches')
|
|
validate_head_file(config)
|
|
|
|
|
|
def do_upgrade_downgrade(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)
|
|
else:
|
|
revision = CONF.command.revision
|
|
|
|
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)
|
|
update_head_file(config)
|
|
|
|
|
|
def validate_head_file(config):
|
|
script = alembic_script.ScriptDirectory.from_config(config)
|
|
if len(script.get_heads()) > 1:
|
|
alembic_util.err(_('Timeline branches unable to generate timeline'))
|
|
|
|
head_path = os.path.join(script.versions, HEAD_FILENAME)
|
|
if (os.path.isfile(head_path) and
|
|
open(head_path).read().strip() == script.get_current_head()):
|
|
return
|
|
else:
|
|
alembic_util.err(_('HEAD file does not match migration timeline head'))
|
|
|
|
|
|
def update_head_file(config):
|
|
script = alembic_script.ScriptDirectory.from_config(config)
|
|
if len(script.get_heads()) > 1:
|
|
alembic_util.err(_('Timeline branches unable to generate timeline'))
|
|
|
|
head_path = os.path.join(script.versions, HEAD_FILENAME)
|
|
with open(head_path, 'w+') as f:
|
|
f.write(script.get_current_head())
|
|
|
|
|
|
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('check_migration')
|
|
parser.set_defaults(func=do_check_migration)
|
|
|
|
for name in ['upgrade', 'downgrade']:
|
|
parser = subparsers.add_parser(name)
|
|
parser.add_argument('--delta', type=int)
|
|
parser.add_argument('--sql', action='store_true')
|
|
parser.add_argument('revision', nargs='?')
|
|
parser.set_defaults(func=do_upgrade_downgrade)
|
|
|
|
parser = subparsers.add_parser('stamp')
|
|
parser.add_argument('--sql', action='store_true')
|
|
parser.add_argument('revision')
|
|
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_config.Config(
|
|
os.path.join(os.path.dirname(__file__), 'alembic.ini')
|
|
)
|
|
config.set_main_option('script_location',
|
|
'neutron.db.migration:alembic_migrations')
|
|
# attach the Neutron conf to the Alembic conf
|
|
config.neutron_config = CONF
|
|
|
|
CONF()
|
|
#TODO(gongysh) enable logging
|
|
CONF.command.func(config, CONF.command.name)
|