From fbc412e533bd7cb07c6d930e194f660e14b2319f Mon Sep 17 00:00:00 2001 From: Dean Troyer Date: Thu, 31 Jan 2013 19:30:25 -0600 Subject: Multiple API version support * Use multiple entry point groups to represent each API+version combination supported * Add some tests Try it out: * Right now only '* user' commands have multiple overlapping versions; you can see the selection between v2.0 and v3 by looking at the command help output for 'tenant' vs 'project': os --os-identity-api-version=2.0 help set user os --os-identity-api-version=3 help set user Change-Id: I7114fd246843df0243d354a7cce697810bb7de62 --- openstackclient/common/commandmanager.py | 42 ++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 openstackclient/common/commandmanager.py (limited to 'openstackclient/common/commandmanager.py') diff --git a/openstackclient/common/commandmanager.py b/openstackclient/common/commandmanager.py new file mode 100644 index 00000000..e366034a --- /dev/null +++ b/openstackclient/common/commandmanager.py @@ -0,0 +1,42 @@ +# Copyright 2012-2013 OpenStack, LLC. +# +# 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. +# + +"""Modify Cliff's CommandManager""" + +import logging +import pkg_resources + +import cliff.commandmanager + + +LOG = logging.getLogger(__name__) + + +class CommandManager(cliff.commandmanager.CommandManager): + """Alters Cliff's default CommandManager behaviour to load additiona + command groups after initialization. + """ + def _load_commands(self, group=None): + if not group: + group = self.namespace + for ep in pkg_resources.iter_entry_points(group): + LOG.debug('found command %r' % ep.name) + self.commands[ep.name.replace('_', ' ')] = ep + return + + def add_command_group(self, group=None): + """Adds another group of command entrypoints""" + if group: + self._load_commands(group) -- cgit v1.2.1