add ability to gather help text (#38)

pinhook/bot.py

@@ -162,7 +162,7 @@ class Bot(irc.bot.SingleServerIRCBot):
         output = None
         if cmd in pinhook.plugin.cmds:
             try:
-                output = pinhook.plugin.cmds[cmd](self.Message(
+                output = pinhook.plugin.cmds[cmd]['run'](self.Message(
                     channel=chan,
                     cmd=cmd,
                     nick_list=nick_list,

pinhook/plugin.py

@@ -30,8 +30,11 @@ def message(msg):
     return Output(OutputType.Message, msg)
 
 
-def _add_plugin(command, func):
-    cmds[command] = func
+def _add_plugin(command, help_text, func):
+    cmds[command] = {
+        'run': func,
+        'help': help_text
+    }
 
 
 def _add_listener(name, func):
@@ -43,9 +46,9 @@ def clear_plugins():
     lstnrs.clear()
 
 
-def register(command):
+def register(command, help_text=None):
     def register_for_command(func):
-        _add_plugin(command, func)
+        _add_plugin(command, help_text, func)
         return func
     return register_for_command