feat: 🎸 add realpathSync() method

streamich · Jun 20, 2023 · f9a3cbe · f9a3cbe
1 parent a1a61c5
commit f9a3cbe
Show file tree

Hide file tree

Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/src/fsa-to-node/FsaNodeFs.ts b/src/fsa-to-node/FsaNodeFs.ts
@@ -17,6 +17,7 @@ import {
   getAppendFileOpts,
   getDefaultOpts,
   getReaddirOptions,
+  getRealpathOptions,
 } from '../node/options';
 import {
   bufToUint8,
@@ -950,9 +951,15 @@ export class FsaNodeFs extends FsaNodeCore implements FsCallbackApi, FsSynchrono
     }
   };
 
+  public readonly realpathSync: FsSynchronousApi['realpathSync'] = (path: misc.PathLike, options?: opts.IRealpathOptions | string): misc.TDataOut => {
+    let filename = pathToFilename(path);
+    const {encoding} = getRealpathOptions(options);
+    if (filename[0] !== FsaToNodeConstants.Separator) filename = FsaToNodeConstants.Separator + filename;
+    return strToEncoding(filename, encoding);
+  }
+
   public readonly openSync: FsSynchronousApi['openSync'] = notSupported;
   public readonly readSync: FsSynchronousApi['readSync'] = notSupported;
-  public readonly realpathSync: FsSynchronousApi['realpathSync'] = notSupported;
   public readonly writeSync: FsSynchronousApi['writeSync'] = notSupported;
 
   public readonly chmodSync: FsSynchronousApi['chmodSync'] = noop;

diff --git a/src/fsa-to-node/__tests__/FsaNodeFs.test.ts b/src/fsa-to-node/__tests__/FsaNodeFs.test.ts
@@ -588,6 +588,14 @@ onlyOnNode20('FsaNodeFs', () => {
     });
   });
 
+  describe('.realpathSync()', () => {
+    test('returns file path', async () => {
+      const { fs } = setup({ folder: { file: 'test' }, 'empty-folder': null, 'f.html': 'test' });
+      const path = fs.realpathSync('folder/file');
+      expect(path).toBe('/folder/file');
+    });
+  });
+
   describe('.copyFile()', () => {
     test('can copy a file', async () => {
       const { fs, mfs } = setup({ folder: { file: 'test' }, 'empty-folder': null, 'f.html': 'test' });