Add plugin api to template.py, add news plugin

1 files changed, 24 insertions, 0 deletions

diff --git a/scripts/plugin.py b/scripts/plugin.py
new file mode 100644
index 0000000..785a219
--- /dev/null
+++ b/scripts/plugin.py
@@ -0,0 +1,24 @@
+class PluginManager(object):
+    def __init__(self):
+        self.plugins = []
+    def register(self, plugin):
+        self.plugins.append(plugin)
+    def __getattr__(self, name):
+        def caller(data, *args, **kwargs):
+            return_value = data
+            processed = False
+            for plugin in self.plugins:
+                try:
+                    method = getattr(plugin, name)
+                    return_value = method(data, *args, **kwargs)
+                    processed = True
+                except KeyError:
+                    pass
+                except Exception:
+                    sys.excepthook(*sys.exc_info())
+            if not processed:
+                print "Warning: no plugin implemented '%s'" % name
+            return return_value
+        return caller
+
+plugin_manager = PluginManager()