From ed1e6fd015b487edabd3c616a813371e538f2b76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Jakes=CC=8C?= <jan@jakes.pro>
Date: Tue, 13 Aug 2019 08:46:23 +0200
Subject: [PATCH] Throw exception when metadata cache not writable

[MAILPOET-2269]
---
 lib/Doctrine/MetadataCache.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/Doctrine/MetadataCache.php b/lib/Doctrine/MetadataCache.php
index 3819114d1a..3631758930 100644
--- a/lib/Doctrine/MetadataCache.php
+++ b/lib/Doctrine/MetadataCache.php
@@ -29,7 +29,11 @@ class MetadataCache extends CacheProvider {
   }
 
   protected function doSave($id, $data, $lifeTime = 0) {
-    file_put_contents($this->getFilename($id), serialize($data));
+    $filename = $this->getFilename($id);
+    $result = @file_put_contents($filename, serialize($data));
+    if ($result === false) {
+      throw new \RuntimeException("Error while writing to '$filename'");
+    }
   }
 
   protected function doDelete($id) {