Implemented class for loading precompiled Mustache cache

src/class-laps.php

@@ -210,6 +210,7 @@ class Laps {
 		$mustache = new \Mustache_Engine(
 			array(
 				'loader' => new \Mustache_Loader_FilesystemLoader( dirname( __DIR__ ) . '/views' ),
+				'cache'  => new Mustache_Cache_FrozenCache( dirname( __DIR__ ) . '/views/cache' ),
 			)
 		);
 

src/class-mustache-cache-frozencache.php

@@ -0,0 +1,27 @@
+<?php
+namespace Rarst\Laps;
+
+/**
+ * Implements read-only filesystem cache
+ */
+class Mustache_Cache_FrozenCache extends \Mustache_Cache_FilesystemCache {
+
+	/**
+	 * Cache and load a compiled Mustache_Template class.
+	 *
+	 * @param string $key
+	 * @param string $value
+	 *
+	 * @return void
+	 */
+	public function cache( $key, $value ) {
+
+		$this->log(
+			\Mustache_Logger::WARNING,
+			'Read only cache file missing, evaluating "{className}" class at runtime',
+			array( 'className' => $key )
+		);
+
+		eval( '?>' . $value );
+	}
+}