From b1224cff0cfeee4b6e2005be89fd5e1d797ed9ce Mon Sep 17 00:00:00 2001
From: Christian Kamm <mail@ckamm.de>
Date: Wed, 16 May 2018 10:50:34 +0200
Subject: [PATCH] SyncJournal: Check file existence even for open dbs #6049

With WAL mode sqlite seems to occasionally crash when the
underlying filesystem goes away.
---
 src/common/syncjournaldb.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/common/syncjournaldb.cpp b/src/common/syncjournaldb.cpp
index 8a41a4ac6c..9d44bf08c6 100644
--- a/src/common/syncjournaldb.cpp
+++ b/src/common/syncjournaldb.cpp
@@ -272,6 +272,11 @@ bool SyncJournalDb::sqlFail(const QString &log, const SqlQuery &query)
 bool SyncJournalDb::checkConnect()
 {
     if (_db.isOpen()) {
+        if (!QFile::exists(_dbFile)) {
+            qCWarning(lcDb) << "Database open, but file file" + _dbFile + " does not exist";
+            close();
+            return false;
+        }
         return true;
     }