Merge pull request CloudBotIRC#223 from linuxdaemon/gonzobot+hook-errors

Add logging of hook errors to configurable log channel

cloudbot/plugin.py

@@ -482,10 +482,10 @@ def internal_launch(self, hook, event):
         try:
             out = yield from task
             ok = True
-        except Exception as e:
+        except Exception:
             logger.exception("Error in hook {}".format(hook.description))
             ok = False
-            out = e
+            out = sys.exc_info()
 
         hook.plugin.tasks.remove(task)
 

plugins/core/chan_log.py

@@ -0,0 +1,23 @@
+import traceback
+
+from cloudbot import hook
+from cloudbot.util import web
+
+logchannel = ""
+
+
+@hook.post_hook
+def on_hook_end(error, message, launched_hook, launched_event):
+    if error is not None and logchannel:
+        message("Error occurred in {}.{}".format(launched_hook.plugin.title, launched_hook.function_name), logchannel)
+
+        lines = traceback.format_exception(*error)
+        last_line = lines[-1]
+        message(last_line, logchannel)
+        url = web.paste('\n'.join(lines))
+        message("Traceback: " + url, logchannel)
+
+        event_data = launched_event.__dict__.items()
+        lines = ["{} = {}".format(k, v) for k, v in event_data]
+        url = web.paste('\n'.join(lines))
+        message("Event: " + url, logchannel)