mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-18 02:40:40 +00:00
85 lines
3.5 KiB
Python
85 lines
3.5 KiB
Python
|
# 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.
|
||
|
|
|
||
|
|
import logging
|
||
|
|
|
||
|
|
from .extension import ExtensionManager
|
||
|
|
|
||
|
|
|
||
|
|
LOG = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
|
||
|
|
class EnabledExtensionManager(ExtensionManager):
|
||
|
|
"""Loads only plugins that pass a check function.
|
||
|
|
|
||
|
|
The check_func argument should return a boolean, with ``True``
|
||
|
|
indicating that the extension should be loaded and made available
|
||
|
|
and ``False`` indicating that the extension should be ignored.
|
||
|
|
|
||
|
|
:param namespace: The namespace for the entry points.
|
||
|
|
:type namespace: str
|
||
|
|
:param check_func: Function to determine which extensions to load.
|
||
|
|
:type check_func: callable, taking an :class:`Extension`
|
||
|
|
instance as argument
|
||
|
|
:param invoke_on_load: Boolean controlling whether to invoke the
|
||
|
|
object returned by the entry point after the driver is loaded.
|
||
|
|
:type invoke_on_load: bool
|
||
|
|
:param invoke_args: Positional arguments to pass when invoking
|
||
|
|
the object returned by the entry point. Only used if invoke_on_load
|
||
|
|
is True.
|
||
|
|
:type invoke_args: tuple
|
||
|
|
:param invoke_kwds: Named arguments to pass when invoking
|
||
|
|
the object returned by the entry point. Only used if invoke_on_load
|
||
|
|
is True.
|
||
|
|
:type invoke_kwds: dict
|
||
|
|
:param propagate_map_exceptions: Boolean controlling whether exceptions
|
||
|
|
are propagated up through the map call or whether they are logged and
|
||
|
|
then ignored
|
||
|
|
:type propagate_map_exceptions: bool
|
||
|
|
:param on_load_failure_callback: Callback function that will be called when
|
||
|
|
a entrypoint can not be loaded. The arguments that will be provided
|
||
|
|
when this is called (when an entrypoint fails to load) are
|
||
|
|
(manager, entrypoint, exception)
|
||
|
|
:type on_load_failure_callback: function
|
||
|
|
:param verify_requirements: Use setuptools to enforce the
|
||
|
|
dependencies of the plugin(s) being loaded. Defaults to False.
|
||
|
|
:type verify_requirements: bool
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, namespace, check_func, invoke_on_load=False,
|
||
|
|
invoke_args=(), invoke_kwds={},
|
||
|
|
propagate_map_exceptions=False,
|
||
|
|
on_load_failure_callback=None,
|
||
|
|
verify_requirements=False,):
|
||
|
|
self.check_func = check_func
|
||
|
|
super(EnabledExtensionManager, self).__init__(
|
||
|
|
namespace,
|
||
|
|
invoke_on_load=invoke_on_load,
|
||
|
|
invoke_args=invoke_args,
|
||
|
|
invoke_kwds=invoke_kwds,
|
||
|
|
propagate_map_exceptions=propagate_map_exceptions,
|
||
|
|
on_load_failure_callback=on_load_failure_callback,
|
||
|
|
verify_requirements=verify_requirements,
|
||
|
|
)
|
||
|
|
|
||
|
|
def _load_one_plugin(self, ep, invoke_on_load, invoke_args, invoke_kwds,
|
||
|
|
verify_requirements):
|
||
|
|
ext = super(EnabledExtensionManager, self)._load_one_plugin(
|
||
|
|
ep, invoke_on_load, invoke_args, invoke_kwds,
|
||
|
|
verify_requirements,
|
||
|
|
)
|
||
|
|
if ext and not self.check_func(ext):
|
||
|
|
LOG.debug('ignoring extension %r', ep.name)
|
||
|
|
return None
|
||
|
|
return ext
|