feat: 🎸 add unlinkSync() method

demo/fsa/main.ts

@@ -71,6 +71,11 @@ const demo = async (dir: fsa.IFileSystemDirectoryHandle) => {
   await fs.promises.writeFile('/truncated.txt', 'truncate here: abcdefghijklmnopqrstuvwxyz');
   fs.truncateSync('/truncated.txt', 14);
   strictEqual(fs.readFileSync('/truncated.txt', 'utf8'), 'truncate here:');
+
+  console.log('unlinkSync() - can delete a file');
+  await fs.promises.writeFile('/delete-me.txt', 'abc');
+  fs.unlinkSync('/delete-me.txt');
+  strictEqual(fs.existsSync('/delete-me.txt'), false);
 };
 
 const main = async () => {

src/fsa-to-node/FsaNodeFs.ts

@@ -902,11 +902,15 @@ export class FsaNodeFs extends FsaNodeCore implements FsCallbackApi, FsSynchrono
     this.truncateSync(filename, len);
   };
 
+  public readonly unlinkSync: FsSynchronousApi['unlinkSync'] = (path: misc.PathLike): void => {
+    const filename = pathToFilename(path);
+    this.getSyncAdapter().call('unlink', [filename]);
+  };
+
   public readonly openSync: FsSynchronousApi['openSync'] = notSupported;
   public readonly readdirSync: FsSynchronousApi['readdirSync'] = notSupported;
   public readonly readSync: FsSynchronousApi['readSync'] = notSupported;
   public readonly realpathSync: FsSynchronousApi['realpathSync'] = notSupported;
-  public readonly unlinkSync: FsSynchronousApi['unlinkSync'] = notSupported;
   public readonly writeSync: FsSynchronousApi['writeSync'] = notSupported;
 
   public readonly chmodSync: FsSynchronousApi['chmodSync'] = noop;

src/fsa-to-node/types.ts

@@ -19,6 +19,7 @@ export interface FsaNodeSyncAdapterApi {
   mkdir(req: [filename: string, opts?: misc.TMode | opts.IMkdirOptions]): string | undefined;
   mkdtemp(req: [filename: string, opts?: misc.TMode | opts.IOptions]): string;
   trunc(req: [filename: string, len: number]): void;
+  unlink(req: [filename: string]): void;
 }
 
 export interface FsaNodeSyncAdapter {

src/fsa-to-node/worker/FsaNodeSyncWorker.ts

@@ -156,5 +156,8 @@ export class FsaNodeSyncWorker {
     trunc: async ([filename, len]): Promise<void> => {
       await this.fs.promises.truncate(filename, len);
     },
+    unlink: async ([filename]): Promise<void> => {
+      await this.fs.promises.unlink(filename);
+    },
   };
 }