100 lines
3.0 KiB
Python
100 lines
3.0 KiB
Python
# 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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import inspect
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from docutils import nodes
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from docutils.parsers import rst
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from docutils.parsers.rst import directives
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from docutils.statemachine import ViewList
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from sphinx.util import logging
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from sphinx.util.nodes import nested_parse_with_titles
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from stevedore import extension
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LOG = logging.getLogger(__name__)
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class ListAuthPluginsDirective(rst.Directive):
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"""Present a simple list of the plugins in a namespace."""
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option_spec = {
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'class': directives.class_option,
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'overline-style': directives.single_char_or_unicode,
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'underline-style': directives.single_char_or_unicode,
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}
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has_content = True
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def report_load_failure(mgr, ep, err):
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LOG.warning(u'Failed to load %s: %s' % (ep.module_name, err))
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def display_plugin(self, ext):
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overline_style = self.options.get('overline-style', '')
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underline_style = self.options.get('underline-style', '=')
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if overline_style:
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yield overline_style * len(ext.name)
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yield ext.name
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if underline_style:
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yield underline_style * len(ext.name)
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yield "\n"
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doc = inspect.getdoc(ext.obj)
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if doc:
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yield doc
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yield "\n"
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yield "------"
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yield "\n"
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for opt in ext.obj.get_options():
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yield ":%s: %s" % (opt.name, opt.help)
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yield "\n"
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def run(self):
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mgr = extension.ExtensionManager(
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'keystoneauth1.plugin',
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on_load_failure_callback=self.report_load_failure,
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invoke_on_load=True,
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)
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result = ViewList()
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for name in sorted(mgr.names()):
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for line in self.display_plugin(mgr[name]):
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for l in line.splitlines():
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ep = mgr[name]
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try:
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module_name = ep.entry_point.module_name
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except AttributeError:
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try:
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module_name = ep.entry_point.module
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except AttributeError:
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module_name = ep.entry_point.value
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result.append(l, module_name)
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# Parse what we have into a new section.
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node = nodes.section()
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node.document = self.state.document
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nested_parse_with_titles(self.state, result, node)
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return node.children
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def setup(app):
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LOG.info('loading keystoneauth1 plugins')
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app.add_directive('list-auth-plugins', ListAuthPluginsDirective)
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