add plugin registry

raven/plugins/__init__.py

@@ -0,0 +1,25 @@
+from inspect import isclass
+from pkgutil import iter_modules
+from pathlib import Path
+from importlib import import_module
+from raven.pluginbase import PluginBase
+
+# iterate through the modules in the current package
+from raven.pluginregistry import PluginRegistry
+
+if False:
+    package_dir = Path(__file__).resolve().parent
+    for (_, module_name, _) in iter_modules([str(package_dir)]):
+        # import the module and iterate through its attributes
+        module = import_module(f"{__name__}.{module_name}")
+        print("module: %s" % module)
+
+        for attribute_name in dir(module):
+            if attribute_name == "PluginBase":
+                continue
+            attribute = getattr(module, attribute_name)
+
+            if isclass(attribute) and issubclass(attribute, PluginBase):
+                globals()[attribute_name] = attribute
+                PluginRegistry.register_plugin(attribute_name, attribute)
+                print("%s -> %s :: %s in %s" % (attribute_name, attribute, module_name, module))