re-parse MOTDs if required on init

app/__init__.py

@@ -1,6 +1,6 @@
 from flask import Flask, session, request
 from dotenv import load_dotenv
-from .models import Avatars, Users, PostHistory, Posts
+from .models import Avatars, Users, PostHistory, Posts, MOTD
 from .auth import digest
 from .routes.users import is_logged_in, get_active_user, get_prefers_theme
 from .routes.threads import get_post_url
@@ -51,6 +51,7 @@ def create_deleted_user():
 def reparse_babycode():
     print('Re-parsing babycode, this may take a while...')
     from .db import db
+    from .constants import MOTD_BANNED_TAGS
     post_histories = PostHistory.findall([
         ('markup_language', '=', 'babycode'),
         ('format_version', 'IS NOT', BABYCODE_VERSION)
@@ -80,6 +81,20 @@ def reparse_babycode():
                 })
         print(f'Re-parsed {len(users_with_sigs)} user sigs.')
 
+    stale_motds = MOTD.findall([
+        ['markup_language', '=', 'babycode'],
+        ['format_version', 'IS NOT', BABYCODE_VERSION]
+    ])
+    if stale_motds:
+        print('Re-parsing MOTDs...')
+        with db.transaction():
+            for motd in stale_motds:
+                motd.update({
+                    'body_rendered': babycode_to_html(motd['body_original_markup'], banned_tags=MOTD_BANNED_TAGS),
+                    'format_version': BABYCODE_VERSION,
+                })
+        print('Re-parsing MOTDs done.')
+
     print('Re-parsing done.')
 
 def create_app():