Made FileSystemMetadata.features optional

Author: james-pre

src/filesystem.ts

@@ -69,7 +69,7 @@ export interface FileSystemMetadata {
 	 * These are used by the VFS for optimizations.
 	 * - setid:	The FS supports setuid and setgid when creating files and directories.
 	 */
-	features: ('setid' | '')[];
+	features?: ('setid' | '')[];
 }
 
 /**

src/vfs/promises.ts

@@ -509,7 +509,7 @@ unlink satisfies typeof promises.unlink;
  * Manually apply setuid/setgid.
  */
 async function applySetId(file: File, uid: number, gid: number) {
-	if (file.fs.metadata().features.includes('setid')) return;
+	if (file.fs.metadata().features?.includes('setid')) return;
 
 	const parent = await file.fs.stat(dirname(file.path));
 	await file.chown(

src/vfs/sync.ts

@@ -127,7 +127,7 @@ unlinkSync satisfies typeof fs.unlinkSync;
  * Manually apply setuid/setgid.
  */
 function applySetId(file: File, uid: number, gid: number) {
-	if (file.fs.metadata().features.includes('setid')) return;
+	if (file.fs.metadata().features?.includes('setid')) return;
 
 	const parent = file.fs.statSync(dirname(file.path));
 	file.chownSync(