Fixed #679

Author: Geolim4

lib/Phpfastcache/Drivers/Predis/Config.php

@@ -17,6 +17,7 @@
 namespace Phpfastcache\Drivers\Predis;
 
 use Phpfastcache\Config\ConfigurationOption;
+use Phpfastcache\Exceptions\PhpfastcacheInvalidConfigurationException;
 
 class Config extends ConfigurationOption
 {
@@ -60,6 +61,11 @@ class Config extends ConfigurationOption
      */
     protected $persistent = false;
 
+    /**
+     * @var string
+     */
+    protected $scheme = 'unix';
+
     /**
      * @return string
      */
@@ -219,4 +225,26 @@ public function setPersistent(bool $persistent): Config
         $this->persistent = $persistent;
         return $this;
     }
+
+    /**
+     * @return string
+     */
+    public function getScheme(): string
+    {
+        return $this->scheme;
+    }
+
+    /**
+     * @param string $scheme
+     * @return Config
+     * @throws PhpfastcacheInvalidConfigurationException
+     */
+    public function setScheme(string $scheme): Config
+    {
+        if(!\in_array($scheme, ['unix', 'tls'], true)){
+            throw new PhpfastcacheInvalidConfigurationException('Invalid scheme: ' . $scheme);
+        }
+        $this->scheme = $scheme;
+        return $this;
+    }
 }

lib/Phpfastcache/Drivers/Predis/Driver.php

@@ -81,7 +81,7 @@ protected function driverConnect(): bool
 
         if (!empty($this->getConfig()->getPath())) {
             $this->instance = new PredisClient([
-                'scheme' => 'unix',
+                'scheme' =>  $this->getConfig()->getScheme(),
                 'persistent' => $this->getConfig()->isPersistent(),
                 'timeout' =>  $this->getConfig()->getTimeout(),
                 'path' => $this->getConfig()->getPath(),