Moved cache drivers outside core to extensions (plugins)

plugins/cache-redis/Predis/Command/ServerSentinel.php

@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) Daniele Alessandri <suppakilla@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Command;
+
+/**
+ * @link http://redis.io/topics/sentinel
+ *
+ * @author Daniele Alessandri <suppakilla@gmail.com>
+ */
+class ServerSentinel extends Command
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getId()
+    {
+        return 'SENTINEL';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function parseResponse($data)
+    {
+        switch (strtolower($this->getArgument(0))) {
+            case 'masters':
+            case 'slaves':
+                return self::processMastersOrSlaves($data);
+
+            default:
+                return $data;
+        }
+    }
+
+    /**
+     * Returns a processed response to SENTINEL MASTERS or SENTINEL SLAVES.
+     *
+     * @param array $servers List of Redis servers.
+     *
+     * @return array
+     */
+    protected static function processMastersOrSlaves(array $servers)
+    {
+        foreach ($servers as $idx => $node) {
+            $processed = array();
+            $count = count($node);
+
+            for ($i = 0; $i < $count; ++$i) {
+                $processed[$node[$i]] = $node[++$i];
+            }
+
+            $servers[$idx] = $processed;
+        }
+
+        return $servers;
+    }
+}