From b1ef68089b11eed1050542108296b9a8d7dd0ae6 Mon Sep 17 00:00:00 2001
From: Hugo Osvaldo Barrera <hugo@whynothugo.nl>
Date: Fri, 10 Mar 2023 12:27:48 +0100
Subject: [PATCH] Properly populate cache during SingleFileStorage._at_once

The call to `list` was never awaited and the stream never drained, so
the cache remained empty.
---
 vdirsyncer/storage/singlefile.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vdirsyncer/storage/singlefile.py b/vdirsyncer/storage/singlefile.py
index 04f41e9..12f48bb 100644
--- a/vdirsyncer/storage/singlefile.py
+++ b/vdirsyncer/storage/singlefile.py
@@ -193,7 +193,8 @@ class SingleFileStorage(Storage):
 
     @contextlib.asynccontextmanager
     async def at_once(self):
-        self.list()
+        async for _ in self.list():
+            pass
         self._at_once = True
         try:
             yield self