Unregister event handler after docs are rendered

jamesls · jamesls · commit 345a51496014 · 2013-08-30T18:25:34.000-07:00
This fixes the case where we're generating multiple docs
in a single invocation (such as html generation).  By
unregistering the event handler, a new instance can come
along and register itself as the object to use for new doc
events.
diff --git a/awscli/help.py b/awscli/help.py
@@ -223,12 +223,13 @@ def name(self):
 
     def __call__(self, args, parsed_globals):
         # Create an event handler for a Provider Document
-        self.EventHandlerClass(self)
+        instance = self.EventHandlerClass(self)
         # Now generate all of the events for a Provider document.
         # We pass ourselves along so that we can, in turn, get passed
         # to all event handlers.
         bcdoc.clidocevents.generate_events(self.session, self)
         self.renderer.render(self.doc.getvalue())
+        instance.unregister()
 
 
 class ProviderHelpCommand(HelpCommand):
