put cron_fn in gevent to make it stop blocking

files/helpers/cron.py

@@ -27,6 +27,7 @@ from files.cli import app, db_session, g
 CRON_CACHE_TIMEOUT = 172800
 
 def cron_fn(every_5m, every_1d):
+	with app.app_context():
 		g.db = db_session()
 		g.v = None
 

files/routes/__init__.py

@@ -52,5 +52,4 @@ if FEATURES['PING_GROUPS']:
 
 if IS_LOCALHOST:
 	from files.helpers.cron import cron_fn
-	with app.app_context():
-		cron_fn(True, False)
+	gevent.spawn(cron_fn, True, False)