move function into class

Signed-off-by: CaCO3 <caco@ruinelli.ch>

index.php

@@ -61,24 +61,6 @@ public function accept(): bool {
 }
 
 
-function rrmdir($src) {
-    $dir = opendir($src);
-    while(false !== ( $file = readdir($dir)) ) {
-        if (( $file != '.' ) && ( $file != '..' )) {
-            $full = $src . '/' . $file;
-            if ( is_dir($full) ) {
-                rrmdir($full);
-            }
-            else {
-                unlink($full);
-            }
-        }
-    }
-    closedir($dir);
-    rmdir($src);
-}
-
-
 class Updater {
 	private string $baseDir;
 	private array $configValues = [];
@@ -149,6 +131,26 @@ public function __construct(string $baseDir) {
 		$this->buildTime = $buildTime;
 	}
 
+	/**
+	 * Deletes a directory recursively
+	 */
+	private function rrmdir(string $src): void {
+	    $dir = opendir($src);
+	    while(false !== ( $file = readdir($dir)) ) {
+	        if (( $file != '.' ) && ( $file != '..' )) {
+	            $full = $src . '/' . $file;
+	            if ( is_dir($full) ) {
+	                rrmdir($full);
+	            }
+	            else {
+	                unlink($full);
+	            }
+	        }
+	    }
+	    closedir($dir);
+	    rmdir($src);
+	}
+
 	/**
 	 * Returns whether the web updater is disabled
 	 *