Add a plugin system

sickchill/extensions/manager.py

@@ -0,0 +1,48 @@
+import importlib
+import pkgutil
+
+import sickchill.extensions
+from sickchill import logger, settings
+from sickchill.oldbeard import config
+
+
+def iter_namespace(ns_pkg):
+    return pkgutil.iter_modules(ns_pkg.__path__, ns_pkg.__name__ + ".")
+
+
+def discover():
+    global extenstions
+    extensions = {}
+    for finder, name, ispkg in iter_namespace(sickchill.extensions):
+        if name == __name__:
+            continue
+        try:
+            plugin = importlib.import_module(name)
+            extensions[name] = plugin
+        except Exception as e:
+            logger.debug("Error importing extension: {0}".format(name), exc_info=e)
+
+    config.check_section(settings.CFG, "extensions")
+    for extension in extensions:
+        logger.debug("Loading {extension} from {path}".format(extension=extension, path=extensions[extension].__path__))
+        config.check_section(settings.CFG["extensions"], extension.name)
+
+    global clients, providers, metadata, notifiers, indexers, post_processors
+
+    # Clients
+    clients = {extension.name: extension for name, extension in extensions.items() if hasattr(extension, "Client")}
+
+    # Providers
+    providers = {extension.name: extension for name, extension in extensions.items() if hasattr(extension, "Provider")}
+
+    # Metadata
+    metadata = {extension.name: extension for name, extension in extensions.items() if hasattr(extension, "Metadata")}
+
+    # Notifiers
+    notifiers = {extension.name: extension for name, extension in extensions.items() if hasattr(extension, "Notifier")}
+
+    # TVDB, TVMAZE, TMDB, etc
+    indexers = {extension.name: extension for name, extension in extensions.items() if hasattr(extension, "Indexer")}
+
+    # Post Processors
+    post_processors = {extension.name: extension for name, extension in extensions.items() if hasattr(extension, "PostProcessor")}

sickchill/settings.py

@@ -10,6 +10,8 @@
 from .init_helpers import setup_gettext, sickchill_dir
 
 if TYPE_CHECKING:
+    from configobj import ConfigObj
+
     from .movies import MovieList
 
 setup_gettext()
@@ -84,7 +86,7 @@
 CALENDAR_UNPROTECTED = False
 CF_AUTH_DOMAIN = ""
 CF_POLICY_AUD = ""
-CFG = None
+CFG: "ConfigObj" = None
 CHECK_PROPERS_INTERVAL = None
 CLIENT_WEB_URLS = {"torrent": "", "newznab": ""}
 COMING_EPS_DISPLAY_PAUSED = False