only trigger updating clan messages in updated directories.

Update clan info message if the template was updated.

utils.py

@@ -4,6 +4,7 @@ File contains util functions.
 
 import os
 from datetime import datetime
+from typing import Iterable
 
 import nextcord
 from sqlalchemy import select, true, update
@@ -395,7 +396,7 @@ def record_event_host(config: DakinyConfig, user: int):
         session.commit()
 
 
-async def update_clan_messages(guild: nextcord.Guild):
+async def update_clan_messages(guild: nextcord.Guild, channel_updates: Iterable[str]):
     """
     Updates all clan messages to contents in MESSAGES_DIR.
     Does not to any git work. Is expected to be called after git is pulled.
@@ -411,7 +412,7 @@ async def update_clan_messages(guild: nextcord.Guild):
 
     dirs = [
         dir_name
-        for dir_name in os.listdir(MESSAGES_DIR)
+        for dir_name in channel_updates
         if os.path.isdir(f"{MESSAGES_DIR}/{dir_name}")
     ]