From 17e710c4bf8b6c61e28f1f297f885d7ae732c464 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20F=C3=A4hrmann?= <mike_faehrmann@web.de>
Date: Mon, 13 Nov 2023 16:24:54 +0100
Subject: [PATCH] [oauth] warn when cache is enabled but not writeable (#4771)

---
 gallery_dl/extractor/oauth.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gallery_dl/extractor/oauth.py b/gallery_dl/extractor/oauth.py
index 45313c51..d1f135d8 100644
--- a/gallery_dl/extractor/oauth.py
+++ b/gallery_dl/extractor/oauth.py
@@ -11,7 +11,7 @@
 from .common import Extractor, Message
 from .. import text, oauth, util, config, exception
 from ..output import stdout_write
-from ..cache import cache
+from ..cache import cache, memcache
 import urllib.parse
 import binascii
 import hashlib
@@ -31,6 +31,9 @@ class OAuthBase(Extractor):
 
     def _init(self):
         self.cache = config.get(("extractor", self.category), "cache", True)
+        if self.cache and cache is memcache:
+            self.log.warning("cache file is not writeable")
+            self.cache = False
 
     def oauth_config(self, key, default=None):
         value = config.interpolate(("extractor", self.subcategory), key)