[Cache] Add ability to configure predis client.

jralph · jralph · commit 809135d34f27 · 2018-08-09T14:01:37.000+01:00
When the predis driver is created, there is no current way to
configure the predis client options (such as setting the cluster
mode to redis). This merge allows you to add a predis_options
parameter to the dsn to allow configuration of options.
diff --git a/src/Symfony/Component/Cache/Traits/RedisTrait.php b/src/Symfony/Component/Cache/Traits/RedisTrait.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Cache\Traits;
 
+use function is_array;
 use Predis\Connection\Aggregate\ClusterInterface;
 use Predis\Connection\Aggregate\PredisCluster;
 use Predis\Connection\Aggregate\RedisCluster;
@@ -167,7 +168,10 @@ public static function createConnection($dsn, array $options = array())
             $params['scheme'] = $scheme;
             $params['database'] = $params['dbindex'] ?: null;
             $params['password'] = $auth;
-            $redis = new $class((new Factory())->create($params));
+
+            $predisOptions = false !== isset($params['predis_options']) && true === is_array($params['predis_options']) ? $params['predis_options'] : [];
+
+            $redis = new $class((new Factory())->create($params), $predisOptions);
         } elseif (class_exists($class, false)) {
             throw new InvalidArgumentException(sprintf('"%s" is not a subclass of "Redis" or "Predis\Client"', $class));
         } else {
