diff -r 000000000000 -r 7f95f8617b0b vendor/assetic/src/Assetic/Cache/FilesystemCache.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assetic/src/Assetic/Cache/FilesystemCache.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the Assetic package, an OpenSky project.
+ *
+ * (c) 2010-2011 OpenSky Project Inc
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Assetic\Cache;
+
+/**
+ * A simple filesystem cache.
+ *
+ * @author Kris Wallsmith <kris.wallsmith@gmail.com>
+ */
+class FilesystemCache implements CacheInterface
+{
+    private $dir;
+
+    public function __construct($dir)
+    {
+        $this->dir = $dir;
+    }
+
+    public function has($key)
+    {
+        return file_exists($this->dir.'/'.$key);
+    }
+
+    public function get($key)
+    {
+        $path = $this->dir.'/'.$key;
+
+        if (!file_exists($path)) {
+            throw new \RuntimeException('There is no cached value for '.$key);
+        }
+
+        return file_get_contents($path);
+    }
+
+    public function set($key, $value)
+    {
+        if (!is_dir($this->dir) && false === @mkdir($this->dir, 0777, true)) {
+            throw new \RuntimeException('Unable to create directory '.$this->dir);
+        }
+
+        $path = $this->dir.'/'.$key;
+
+        if (false === @file_put_contents($path, $value)) {
+            throw new \RuntimeException('Unable to write file '.$path);
+        }
+    }
+
+    public function remove($key)
+    {
+        $path = $this->dir.'/'.$key;
+
+        if (file_exists($path) && false === @unlink($path)) {
+            throw new \RuntimeException('Unable to remove file '.$path);
+        }
+    }
+}