Update companion plugin to use global settings introduced in aa697f90 and...

Update companion plugin to use global settings introduced in aa697f90 and 0a647e33, simplifying administration, ensuring consistency in settings used, reducing UI clutter.

wp-redis-cache/wp-redis-cache.php

@@ -161,6 +161,14 @@ class WP_Redis_Cache {
 	 * @return null
 	 */
 	public function register_ui() {
+		// If cache life is set globally, don't show the UI
+		global $wp_redis_cache_config;
+		if ( is_array( $wp_redis_cache_config ) &&
+			( isset( $wp_redis_cache_config['cache_duration' ] ) || isset( $wp_redis_cache_config['unlimited' ] ) )
+		) {
+			return;
+		}
+
 		add_options_page( 'WP Redis Cache', 'WP Redis Cache', 'manage_options', $this->ns, array( $this, 'render_ui' ) );
 	}
 
@@ -216,10 +224,24 @@ class WP_Redis_Cache {
 	 */
 	public function flush_cache( $new_status, $old_status, $post ) {
 		if ( in_array( 'publish', array( $new_status, $old_status ) ) ) {
+			// Default connection settings
+			$redis_settings = array(
+				'host'     => '127.0.0.1',
+				'port'     => 6379,
+				'database' => 0,
+			);
+
+			// Override default connection settings with global values, when present
+			global $wp_redis_cache_config;
+			if ( is_array( $wp_redis_cache_config ) ) {
+				$_redis_settings = array_intersect( $wp_redis_cache_config, $redis_settings );
+				$redis_settings = wp_parse_args( $_redis_settings, $redis_settings );
+			}
+
 			$permalink = get_permalink( $post->ID );
 
 			include_once dirname( __FILE__ ) . '/predis5.2.php'; // we need this to use Redis inside of PHP
-			$redis = new Predis_Client();
+			$redis = new Predis_Client( $redis_settings );
 
 			$redis_key = md5( $permalink );
 			$redis->del( $redis_key );