Add hash accessor

Author: emmadesilva

packages/framework/src/Support/Filesystem/MediaFile.php

@@ -128,6 +128,11 @@ public function getMimeType(): string
         return 'text/plain';
     }
 
+    public function getHash(): string
+    {
+        return md5_file($this->getAbsolutePath());
+    }
+
     /** @internal */
     public static function getCacheBustKey(string $file): string
     {

packages/framework/tests/Unit/Support/MediaFileTest.php

@@ -336,4 +336,11 @@ public function testGetSiteMediaOutputDirectoryUsesConfiguredSiteOutputDirectory
         Hyde::setOutputDirectory(Hyde::path('_site'));
         Hyde::setMediaDirectory('_media');
     }
+
+    public function testGetHash()
+    {
+        $this->file('_media/foo.txt', 'Hello World!');
+
+        $this->assertSame(md5('Hello World!'), MediaFile::make('foo.txt')->getHash());
+    }
 }