From e2cc2530fc6d54ebc975c01a4ff887ce12f0a736 Mon Sep 17 00:00:00 2001 From: Pavel Aharoni Date: Wed, 29 Mar 2017 13:35:45 +0300 Subject: [SDC-6] sdc-distribution-client 1707 rebasing Change-Id: I322a05fd79beb6ba4fee4d32afffecf531b86e98 Signed-off-by: Pavel Aharoni --- .../cliff-2.4.0-py2.7.egg/cliff/commandmanager.py | 104 +++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 jython-tosca-parser/src/main/resources/Lib/site-packages/cliff-2.4.0-py2.7.egg/cliff/commandmanager.py (limited to 'jython-tosca-parser/src/main/resources/Lib/site-packages/cliff-2.4.0-py2.7.egg/cliff/commandmanager.py') diff --git a/jython-tosca-parser/src/main/resources/Lib/site-packages/cliff-2.4.0-py2.7.egg/cliff/commandmanager.py b/jython-tosca-parser/src/main/resources/Lib/site-packages/cliff-2.4.0-py2.7.egg/cliff/commandmanager.py new file mode 100644 index 0000000..f10685e --- /dev/null +++ b/jython-tosca-parser/src/main/resources/Lib/site-packages/cliff-2.4.0-py2.7.egg/cliff/commandmanager.py @@ -0,0 +1,104 @@ +# 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. + +"""Discover and lookup command plugins. +""" + +import inspect +import logging + +import pkg_resources + + +LOG = logging.getLogger(__name__) + + +class EntryPointWrapper(object): + """Wrap up a command class already imported to make it look like a plugin. + """ + + def __init__(self, name, command_class): + self.name = name + self.command_class = command_class + + def load(self, require=False): + return self.command_class + + +class CommandManager(object): + """Discovers commands and handles lookup based on argv data. + + :param namespace: String containing the setuptools entrypoint namespace + for the plugins to be loaded. For example, + ``'cliff.formatter.list'``. + :param convert_underscores: Whether cliff should convert underscores to + spaces in entry_point commands. + """ + def __init__(self, namespace, convert_underscores=True): + self.commands = {} + self.namespace = namespace + self.convert_underscores = convert_underscores + self._load_commands() + + def _load_commands(self): + # NOTE(jamielennox): kept for compatibility. + self.load_commands(self.namespace) + + def load_commands(self, namespace): + """Load all the commands from an entrypoint""" + for ep in pkg_resources.iter_entry_points(namespace): + LOG.debug('found command %r', ep.name) + cmd_name = (ep.name.replace('_', ' ') + if self.convert_underscores + else ep.name) + self.commands[cmd_name] = ep + return + + def __iter__(self): + return iter(self.commands.items()) + + def add_command(self, name, command_class): + self.commands[name] = EntryPointWrapper(name, command_class) + + def find_command(self, argv): + """Given an argument list, find a command and + return the processor and any remaining arguments. + """ + start = self._get_last_possible_command_index(argv) + for i in range(start, 0, -1): + name = ' '.join(argv[:i]) + search_args = argv[i:] + if name in self.commands: + cmd_ep = self.commands[name] + if hasattr(cmd_ep, 'resolve'): + cmd_factory = cmd_ep.resolve() + else: + # NOTE(dhellmann): Some fake classes don't take + # require as an argument. Yay? + arg_spec = inspect.getargspec(cmd_ep.load) + if 'require' in arg_spec[0]: + cmd_factory = cmd_ep.load(require=False) + else: + cmd_factory = cmd_ep.load() + return (cmd_factory, name, search_args) + else: + raise ValueError('Unknown command %r' % + (argv,)) + + def _get_last_possible_command_index(self, argv): + """Returns the index after the last argument + in argv that can be a command word + """ + for i, arg in enumerate(argv): + if arg.startswith('-'): + return i + return len(argv) -- cgit 1.2.3-korg