You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.8 KiB
106 lines
3.8 KiB
# -*- coding: utf-8 -*-
|
|
from __future__ import absolute_import
|
|
from pkg_resources import EntryPoint
|
|
|
|
from stevedore import ExtensionManager
|
|
|
|
|
|
class RegistrableExtensionManager(ExtensionManager):
|
|
""":class:~stevedore.extensions.ExtensionManager` with support for registration.
|
|
|
|
It allows loading of internal extensions without setup and registering/unregistering additional extensions.
|
|
|
|
Loading is done in this order:
|
|
|
|
* Entry point extensions
|
|
* Internal extensions
|
|
* Registered extensions
|
|
|
|
:param str namespace: namespace argument for :class:~stevedore.extensions.ExtensionManager`.
|
|
:param list internal_extensions: internal extensions to use with entry point syntax.
|
|
:param \*\*kwargs: additional parameters for the :class:~stevedore.extensions.ExtensionManager` constructor.
|
|
|
|
"""
|
|
def __init__(self, namespace, internal_extensions, **kwargs):
|
|
#: Registered extensions with entry point syntax
|
|
self.registered_extensions = []
|
|
|
|
#: Internal extensions with entry point syntax
|
|
self.internal_extensions = internal_extensions
|
|
|
|
super(RegistrableExtensionManager, self).__init__(namespace, **kwargs)
|
|
|
|
def list_entry_points(self):
|
|
# copy of default extensions
|
|
eps = list(super(RegistrableExtensionManager, self).list_entry_points())
|
|
|
|
# internal extensions
|
|
for iep in self.internal_extensions:
|
|
ep = EntryPoint.parse(iep)
|
|
if ep.name not in [e.name for e in eps]:
|
|
eps.append(ep)
|
|
|
|
# registered extensions
|
|
for rep in self.registered_extensions:
|
|
ep = EntryPoint.parse(rep)
|
|
if ep.name not in [e.name for e in eps]:
|
|
eps.append(ep)
|
|
|
|
return eps
|
|
|
|
def register(self, entry_point):
|
|
"""Register an extension
|
|
|
|
:param str entry_point: extension to register (entry point syntax).
|
|
:raise: ValueError if already registered.
|
|
|
|
"""
|
|
if entry_point in self.registered_extensions:
|
|
raise ValueError('Extension already registered')
|
|
|
|
ep = EntryPoint.parse(entry_point)
|
|
if ep.name in self.names():
|
|
raise ValueError('An extension with the same name already exist')
|
|
|
|
ext = self._load_one_plugin(ep, False, (), {}, False)
|
|
self.extensions.append(ext)
|
|
if self._extensions_by_name is not None:
|
|
self._extensions_by_name[ext.name] = ext
|
|
self.registered_extensions.insert(0, entry_point)
|
|
|
|
def unregister(self, entry_point):
|
|
"""Unregister a provider
|
|
|
|
:param str entry_point: provider to unregister (entry point syntax).
|
|
|
|
"""
|
|
if entry_point not in self.registered_extensions:
|
|
raise ValueError('Extension not registered')
|
|
|
|
ep = EntryPoint.parse(entry_point)
|
|
self.registered_extensions.remove(entry_point)
|
|
if self._extensions_by_name is not None:
|
|
del self._extensions_by_name[ep.name]
|
|
for i, ext in enumerate(self.extensions):
|
|
if ext.name == ep.name:
|
|
del self.extensions[i]
|
|
break
|
|
|
|
|
|
#: Provider manager
|
|
provider_manager = RegistrableExtensionManager('subliminal.providers', [
|
|
'addic7ed = subliminal.providers.addic7ed:Addic7edProvider',
|
|
'opensubtitles = subliminal.providers.opensubtitles:OpenSubtitlesProvider',
|
|
'podnapisi = subliminal.providers.podnapisi:PodnapisiProvider',
|
|
'shooter = subliminal.providers.shooter:ShooterProvider',
|
|
'thesubdb = subliminal.providers.thesubdb:TheSubDBProvider',
|
|
'tvsubtitles = subliminal.providers.tvsubtitles:TVsubtitlesProvider'
|
|
])
|
|
|
|
#: Refiner manager
|
|
refiner_manager = RegistrableExtensionManager('subliminal.refiners', [
|
|
'metadata = subliminal.refiners.metadata:refine',
|
|
'omdb = subliminal.refiners.omdb:refine',
|
|
'tvdb = subliminal.refiners.tvdb:refine'
|
|
])
|