From add2e0362afe7e3e908c442f9f63785e79f54b11 Mon Sep 17 00:00:00 2001
From: Adam Goldsmith <adam@adamgoldsmith.name>
Date: Sun, 2 May 2021 23:26:36 -0400
Subject: [PATCH] Pre-compile arkhamdb URL regex

---
 ahtcg_bot.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ahtcg_bot.py b/ahtcg_bot.py
index f483d89..b762b5e 100755
--- a/ahtcg_bot.py
+++ b/ahtcg_bot.py
@@ -31,12 +31,14 @@ class ArkhamDBUpdater(discord.Client):
 
     async def gather_deck_ids(self, channel: discord.TextChannel) -> dict[int, str]:
         deck_ids: dict[int, str] = {}
+        url_regex = re.compile(
+            r'(?P<prefix>.*)' + self.arkhamdb_client.origin + r'/deck/view/(?P<deck_id>\d+)')
         async for message in channel.history(limit=200, oldest_first=True):
             # ignore the bot's messages
             if message.author.id == self.user.id:
                 continue
 
-            matches = re.finditer(r'(?P<prefix>.*)' + self.arkhamdb_client.origin + r'/deck/view/(?P<deck_id>\d+)', message.content)
+            matches = url_regex.finditer(message.content)
             for match in matches:
                 deck_ids[int(match.group('deck_id'))] = match.group('prefix')