add sentinel support

src/Cache/CacheFactory.php

@@ -20,6 +20,8 @@ public static function make(string $type = 'file'): Cacheable
                 return new RedisStore();
             case 'apcu':
                 return new ApcuStore();
+            case 'sentinel':
+                return new RedisSentinelStore();
         }
         return new FileStore();
     }

src/Cache/RedisSentinelStore.php

@@ -0,0 +1,105 @@
+<?php
+
+namespace TusPhp\Cache;
+
+use Carbon\Carbon;
+use TusPhp\Config;
+use Predis\Client as RedisClient;
+
+class RedisSentinelStore extends AbstractCache
+{
+    /** @var RedisClient */
+    protected $redis;
+
+    /**
+     * RedisStore constructor.
+     *
+     * @param array $options
+     */
+    public function __construct(array $params = [], array $options = [])
+    {
+        $options = empty($options) ? Config::get('sentinel.options') : $options;
+        $params = empty($params) ? Config::get('sentinel.params') : $params;
+
+        $this->redis = new RedisClient($params, $options);
+    }
+
+    /**
+     * Get redis.
+     *
+     * @return RedisClient
+     */
+    public function getRedis(): RedisClient
+    {
+        return $this->redis;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function get(string $key, bool $withExpired = false)
+    {
+        $prefix = $this->getPrefix();
+
+        if (false === strpos($key, $prefix)) {
+            $key = $prefix . $key;
+        }
+
+        $contents = $this->redis->get($key);
+        if (null !== $contents) {
+            $contents = json_decode($contents, true);
+        }
+
+        if ($withExpired) {
+            return $contents;
+        }
+
+        if ( ! $contents) {
+            return null;
+        }
+
+        $isExpired = Carbon::parse($contents['expires_at'])->lt(Carbon::now());
+
+        return $isExpired ? null : $contents;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function set(string $key, $value)
+    {
+        $contents = $this->get($key) ?? [];
+
+        if (\is_array($value)) {
+            $contents = $value + $contents;
+        } else {
+            $contents[] = $value;
+        }
+
+        $status = $this->redis->set($this->getPrefix() . $key, json_encode($contents));
+
+        return 'OK' === $status->getPayload();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function delete(string $key): bool
+    {
+        $prefix = $this->getPrefix();
+
+        if (false === strpos($key, $prefix)) {
+            $key = $prefix . $key;
+        }
+
+        return $this->redis->del([$key]) > 0;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function keys(): array
+    {
+        return $this->redis->keys($this->getPrefix() . '*');
+    }
+}