1 files changed, 44 insertions, 0 deletions
diff --git a/gallery_dl/postprocessor/__init__.py b/gallery_dl/postprocessor/__init__.py
new file mode 100644
index 0000000..093f8e0
--- /dev/null
+++ b/gallery_dl/postprocessor/__init__.py
@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2018-2019 Mike Fährmann
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+"""Post-processing modules"""
+
+import importlib
+import logging
+
+modules = [
+    "classify",
+    "exec",
+    "metadata",
+    "ugoira",
+    "zip",
+]
+
+log = logging.getLogger("postprocessor")
+
+
+def find(name):
+    """Return a postprocessor class with the given name"""
+    try:
+        return _cache[name]
+    except KeyError:
+        klass = None
+        try:
+            if name in modules:  # prevent unwanted imports
+                module = importlib.import_module("." + name, __package__)
+                klass = module.__postprocessor__
+        except (ImportError, AttributeError, TypeError):
+            pass
+        _cache[name] = klass
+        return klass
+
+
+# --------------------------------------------------------------------
+# internals
+
+_cache = {}