1 files changed, 77 insertions, 0 deletions
diff --git a/Mustache/Source/FilesystemSource.php b/Mustache/Source/FilesystemSource.php
new file mode 100644
index 00000000..270f584e
--- /dev/null
+++ b/Mustache/Source/FilesystemSource.php
@@ -0,0 +1,77 @@
+<?php
+
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2010-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Mustache template Filesystem Source.
+ *
+ * This template Source uses stat() to generate the Source key, so that using
+ * pre-compiled templates doesn't require hitting the disk to read the source.
+ * It is more suitable for production use, and is used by default in the
+ * ProductionFilesystemLoader.
+ */
+class Mustache_Source_FilesystemSource implements Mustache_Source
+{
+    private $fileName;
+    private $statProps;
+    private $stat;
+
+    /**
+     * Filesystem Source constructor.
+     *
+     * @param string $fileName
+     * @param array  $statProps
+     */
+    public function __construct($fileName, array $statProps)
+    {
+        $this->fileName = $fileName;
+        $this->statProps = $statProps;
+    }
+
+    /**
+     * Get the Source key (used to generate the compiled class name).
+     *
+     * @throws Mustache_Exception_RuntimeException when a source file cannot be read
+     *
+     * @return string
+     */
+    public function getKey()
+    {
+        $chunks = array(
+            'fileName' => $this->fileName,
+        );
+
+        if (!empty($this->statProps)) {
+            if (!isset($this->stat)) {
+                $this->stat = @stat($this->fileName);
+            }
+
+            if ($this->stat === false) {
+                throw new Mustache_Exception_RuntimeException(sprintf('Failed to read source file "%s".', $this->fileName));
+            }
+
+            foreach ($this->statProps as $prop) {
+                $chunks[$prop] = $this->stat[$prop];
+            }
+        }
+
+        return json_encode($chunks);
+    }
+
+    /**
+     * Get the template Source.
+     *
+     * @return string
+     */
+    public function getSource()
+    {
+        return file_get_contents($this->fileName);
+    }
+}