57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
# Copyright 2020 Mycroft AI Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""Common functions for loading plugins."""
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import pkg_resources
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from .log import LOG
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def find_plugins(plug_type):
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"""Finds all plugins matching specific entrypoint type.
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Arguments:
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plug_type (str): plugin entrypoint string to retrieve
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Returns:
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dict mapping plugin names to plugin entrypoints
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"""
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return {
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entry_point.name: entry_point.load()
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for entry_point
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in pkg_resources.iter_entry_points(plug_type)
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}
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def load_plugin(plug_type, plug_name):
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"""Load a specific plugin from a specific plugin type.
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Arguments:
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plug_type: (str) plugin type name. Ex. "mycroft.plugin.tts".
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plug_name: (str) specific plugin name
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Returns:
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Loaded plugin Object or None if no matching object was found.
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"""
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plugins = find_plugins(plug_type)
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if plug_name in plugins:
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ret = plugins[plug_name]
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else:
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LOG.warning('Could not find the plugin {}.{}'.format(plug_type,
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plug_name))
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ret = None
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return ret
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