melange/bin/melange-manage
Jason Kölker 05612066e9 Fix namespace declaration
melange/__init__.py may not exist depending on order of installation.

Change-Id: I875152afbd691e221414ef700371317730237506
2012-02-09 13:49:18 -06:00

129 lines
3.7 KiB
Python
Executable File

#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 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.
#TODO(jkoelker) Convert this to an entry_point
import gettext
import optparse
import os
import sys
gettext.install('melange', unicode=1)
# If ../melange/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'melange', '__init__.py')):
sys.path.insert(0, possible_topdir)
from melange import version
from melange.common import config
from melange.common import utils
from melange.db import db_api
def create_options(parser):
"""Sets up the CLI and config-file options.
:param parser: The option parser
:returns: None
"""
parser.add_option('-p', '--port', dest="port", metavar="PORT",
type=int, default=9898,
help="Port the Melange API host listens on. "
"Default: %default")
config.add_common_options(parser)
config.add_log_options(parser)
class Commands(object):
def __init__(self, conf):
self.conf = conf
def db_sync(self):
db_api.db_sync(self.conf)
def db_upgrade(self, version=None):
db_api.db_upgrade(self.conf, version)
def db_downgrade(self, version):
db_api.db_downgrade(self.conf, version)
def execute(self, command_name, *args):
if self.has(command_name):
return getattr(self, command_name)(*args)
_commands = ['db_sync', 'db_upgrade', 'db_downgrade']
@classmethod
def has(cls, command_name):
return (command_name in cls._commands)
@classmethod
def all(cls):
return cls._commands
def params_of(self, command_name):
if Commands.has(command_name):
return utils.MethodInspector(getattr(self, command_name))
def usage():
usage = """
%prog action [args] [options]
Available actions:
"""
for action in Commands.all():
usage = usage + ("\t%s\n" % action)
return usage.strip()
if __name__ == '__main__':
oparser = optparse.OptionParser(version="%%prog %s"
% version.version_string(),
usage=usage())
create_options(oparser)
(options, args) = config.parse_options(oparser)
if len(args) < 1 or not Commands.has(args[0]):
oparser.print_usage()
sys.exit(2)
try:
conf = config.Config.load_paste_config('melange', options, args)
config.setup_logging(options, conf)
command_name = args.pop(0)
Commands(conf).execute(command_name, *args)
sys.exit(0)
except TypeError:
print _("Possible wrong number of arguments supplied")
command_params = Commands(conf).params_of(command_name)
print "Usage: melange-manage %s" % command_params
sys.exit(2)
except Exception:
print _("Command failed, please check log for more info")
raise