Add File::hash()

formwork/Files/File.php

@@ -59,6 +59,13 @@ class File
      */
     protected $size;
 
+    /**
+     * File hash
+     *
+     * @var string
+     */
+    protected $hash;
+
     /**
      * Create a new File instance
      */
@@ -150,6 +157,17 @@ class File
         return $this->size;
     }
 
+    /**
+     * Get file hash
+     */
+    public function hash(): string
+    {
+        if ($this->hash !== null) {
+            return $this->hash;
+        }
+        return $this->hash = hash_file('sha256', $this->path);
+    }
+
     public function __toString(): string
     {
         return $this->name;