106 lines
3.9 KiB
Python
Executable File
106 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
import os
|
|
import sys
|
|
import argparse
|
|
|
|
sys.path.insert(0, os.getcwd())
|
|
|
|
from barbican.model.migration import commands
|
|
from barbican.openstack.common import log
|
|
|
|
|
|
class DatabaseManager:
|
|
"""
|
|
Builds and executes a CLI parser to manage the Barbican database,
|
|
using Alembic commands.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self.parser = self.get_main_parser()
|
|
self.subparsers = self.parser.add_subparsers(title='subcommands',
|
|
description=
|
|
'Action to perform')
|
|
self.add_revision_args()
|
|
self.add_downgrade_args()
|
|
self.add_upgrade_args()
|
|
|
|
def get_main_parser(self):
|
|
"""Create top-level parser and arguments."""
|
|
parser = argparse.ArgumentParser(description='Barbican DB manager.')
|
|
parser.add_argument('--dburl', '-d', default=None,
|
|
help='URL to the database.')
|
|
|
|
return parser
|
|
|
|
def add_revision_args(self):
|
|
"""Create 'revision' command parser and arguments."""
|
|
create_parser = self.subparsers.add_parser('revision', help='Create a '
|
|
'new DB version file.')
|
|
create_parser.add_argument('--message', '-m', default='DB change',
|
|
help='the message for the DB change')
|
|
create_parser.add_argument('--autogenerate',
|
|
help='autogenerate from models',
|
|
action='store_true')
|
|
create_parser.set_defaults(func=self.revision)
|
|
|
|
def add_upgrade_args(self):
|
|
"""Create 'upgrade' command parser and arguments."""
|
|
create_parser = self.subparsers.add_parser('upgrade',
|
|
help='Upgrade to a '
|
|
'future version DB '
|
|
'version file')
|
|
create_parser.add_argument('--version', '-v', default='head',
|
|
help='the version to upgrade to, or else '
|
|
'the latest/head if not specified.')
|
|
create_parser.set_defaults(func=self.upgrade)
|
|
|
|
def add_downgrade_args(self):
|
|
"""Create 'downgrade' command parser and arguments."""
|
|
create_parser = self.subparsers.add_parser('downgrade',
|
|
help='Downgrade to a '
|
|
'previous DB '
|
|
'version file.')
|
|
create_parser.add_argument('--version', '-v', default='need version',
|
|
help='the version to downgrade back to.')
|
|
create_parser.set_defaults(func=self.downgrade)
|
|
|
|
def revision(self, args):
|
|
"""Process the 'revision' Alembic command."""
|
|
commands.generate(autogenerate=args.autogenerate,
|
|
message=args.message,
|
|
sql_url=args.dburl)
|
|
|
|
def upgrade(self, args):
|
|
"""Process the 'upgrade' Alembic command."""
|
|
commands.upgrade(to_version=args.version,
|
|
sql_url=args.dburl)
|
|
|
|
def downgrade(self, args):
|
|
"""Process the 'downgrade' Alembic command."""
|
|
commands.downgrade(to_version=args.version,
|
|
sql_url=args.dburl)
|
|
|
|
def execute(self):
|
|
"""Parse the command line arguments."""
|
|
args = self.parser.parse_args()
|
|
|
|
# Perform other setup here...
|
|
|
|
args.func(args)
|
|
|
|
|
|
def main():
|
|
# Import and configure logging.
|
|
log.setup('barbican-db-manage')
|
|
LOG = log.getLogger(__name__)
|
|
LOG.debug("Performing database schema migration...")
|
|
|
|
dm = DatabaseManager()
|
|
dm.execute()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|