239 lines
8.4 KiB
Python
Executable File
239 lines
8.4 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# Copyright 2011 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Glance Management Utility
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"""
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from __future__ import print_function
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# FIXME(sirp): When we have glance-admin we can consider merging this into it
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# Perhaps for consistency with Nova, we would then rename glance-admin ->
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# glance-manage (or the other way around)
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import os
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import sys
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# If ../glance/__init__.py exists, add ../ to Python search path, so that
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# it will override what happens to be installed in /usr/(local/)lib/python...
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possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
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os.pardir,
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os.pardir))
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if os.path.exists(os.path.join(possible_topdir, 'glance', '__init__.py')):
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sys.path.insert(0, possible_topdir)
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from oslo.config import cfg
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from glance.common import config
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from glance.common import exception
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from glance.db import migration as db_migration
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from glance.openstack.common.db.sqlalchemy import migration
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from glance.openstack.common import log
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from glance.openstack.common import strutils
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CONF = cfg.CONF
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CONF.import_group("database", "glance.openstack.common.db.sqlalchemy.session")
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# Decorators for actions
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def args(*args, **kwargs):
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def _decorator(func):
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func.__dict__.setdefault('args', []).insert(0, (args, kwargs))
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return func
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return _decorator
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class DbCommands(object):
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"""Class for managing the db"""
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def __init__(self):
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pass
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def version(self):
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"""Print database's current migration level"""
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print(migration.db_version(db_migration.MIGRATE_REPO_PATH,
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db_migration.INIT_VERSION))
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@args('--version', metavar='<version>', help='Database version')
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def upgrade(self, version=None):
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"""Upgrade the database's migration level"""
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migration.db_sync(db_migration.MIGRATE_REPO_PATH, version)
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@args('--version', metavar='<version>', help='Database version')
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def downgrade(self, version=None):
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"""Downgrade the database's migration level"""
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migration.db_sync(db_migration.MIGRATE_REPO_PATH, version)
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@args('--version', metavar='<version>', help='Database version')
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def version_control(self, version=None):
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"""Place a database under migration control"""
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migration.db_version_control(db_migration.MIGRATE_REPO_PATH, version)
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@args('--version', metavar='<version>', help='Database version')
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@args('--current_version', metavar='<version>',
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help='Current Database version')
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def sync(self, version=None, current_version=None):
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"""
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Place a database under migration control and upgrade/downgrade it,
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creating first if necessary.
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"""
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if current_version is not None:
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migration.db_version_control(db_migration.MIGRATE_REPO_PATH,
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current_version)
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migration.db_sync(db_migration.MIGRATE_REPO_PATH, version)
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class DbLegacyCommands(object):
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"""Class for managing the db using legacy commands"""
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def __init__(self, command_object):
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self.command_object = command_object
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def version(self):
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self.command_object.version()
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def upgrade(self, version=None):
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self.command_object.upgrade(CONF.command.version)
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def downgrade(self, version=None):
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self.command_object.downgrade(CONF.command.version)
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def version_control(self, version=None):
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self.command_object.version_control(CONF.command.version)
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def sync(self, version=None, current_version=None):
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self.command_object.sync(CONF.command.version,
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CONF.command.current_version)
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def add_legacy_command_parsers(command_object, subparsers):
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legacy_command_object = DbLegacyCommands(command_object)
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parser = subparsers.add_parser('db_version')
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parser.set_defaults(action_fn=legacy_command_object.version)
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parser.set_defaults(action='db_version')
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parser = subparsers.add_parser('db_upgrade')
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parser.set_defaults(action_fn=legacy_command_object.upgrade)
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parser.add_argument('version', nargs='?')
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parser.set_defaults(action='db_upgrade')
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parser = subparsers.add_parser('db_downgrade')
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parser.set_defaults(action_fn=legacy_command_object.downgrade)
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parser.add_argument('version')
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parser.set_defaults(action='db_downgrade')
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parser = subparsers.add_parser('db_version_control')
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parser.set_defaults(action_fn=legacy_command_object.version_control)
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parser.add_argument('version', nargs='?')
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parser.set_defaults(action='db_version_control')
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parser = subparsers.add_parser('db_sync')
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parser.set_defaults(action_fn=legacy_command_object.sync)
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parser.add_argument('version', nargs='?')
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parser.add_argument('current_version', nargs='?')
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parser.set_defaults(action='db_sync')
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def add_command_parsers(subparsers):
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command_object = DbCommands()
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parser = subparsers.add_parser('db')
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parser.set_defaults(command_object=command_object)
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category_subparsers = parser.add_subparsers(dest='action')
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for (action, action_fn) in methods_of(command_object):
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parser = category_subparsers.add_parser(action)
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action_kwargs = []
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for args, kwargs in getattr(action_fn, 'args', []):
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# FIXME(basha): hack to assume dest is the arg name without
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# the leading hyphens if no dest is supplied
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kwargs.setdefault('dest', args[0][2:])
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if kwargs['dest'].startswith('action_kwarg_'):
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action_kwargs.append(
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kwargs['dest'][len('action_kwarg_'):])
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else:
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action_kwargs.append(kwargs['dest'])
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kwargs['dest'] = 'action_kwarg_' + kwargs['dest']
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parser.add_argument(*args, **kwargs)
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parser.set_defaults(action_fn=action_fn)
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parser.set_defaults(action_kwargs=action_kwargs)
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parser.add_argument('action_args', nargs='*')
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add_legacy_command_parsers(command_object, subparsers)
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command_opt = cfg.SubCommandOpt('command',
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title='Commands',
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help='Available commands',
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handler=add_command_parsers)
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def methods_of(obj):
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"""Get all callable methods of an object that don't start with underscore
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returns a list of tuples of the form (method_name, method)
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"""
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result = []
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for i in dir(obj):
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if callable(getattr(obj, i)) and not i.startswith('_'):
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result.append((i, getattr(obj, i)))
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return result
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def main():
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CONF.register_cli_opt(command_opt)
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try:
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cfg_files = cfg.find_config_files(project='glance',
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prog='glance-registry')
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cfg_files.extend(cfg.find_config_files(project='glance',
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prog='glance-api'))
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config.parse_args(default_config_files=cfg_files,
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usage="%(prog)s [options] <cmd>")
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log.setup('glance')
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except RuntimeError as e:
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sys.exit("ERROR: %s" % e)
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try:
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if CONF.command.action.startswith('db'):
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return CONF.command.action_fn()
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else:
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func_kwargs = {}
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for k in CONF.command.action_kwargs:
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v = getattr(CONF.command, 'action_kwarg_' + k)
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if v is None:
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continue
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func_kwargs[k] = strutils.safe_decode(v)
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func_args = [strutils.safe_decode(arg)
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for arg in CONF.command.action_args]
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return CONF.command.action_fn(*func_args, **func_kwargs)
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except exception.GlanceException as e:
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sys.exit("ERROR: %s" % e)
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if __name__ == '__main__':
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main()
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