feat: 🎸 add .toTree() to Volume

demo/volume/print-tree.ts

@@ -0,0 +1,37 @@
+// Run: npx ts-node demo/volume/print-tree.ts
+
+import { memfs } from '../../src';
+
+const { vol } = memfs({
+  '/Users/streamich/src/github/memfs/src': {
+    'package.json': '...',
+    'tsconfig.json': '...',
+    'index.ts': '...',
+    'util': {
+      'index.ts': '...',
+      'print': {
+        'index.ts': '...',
+        'printTree.ts': '...',
+      },
+    },
+  },
+});
+
+console.log(vol.toTree());
+
+// Output:
+// /
+// └─ Users/
+//    └─ streamich/
+//       └─ src/
+//          └─ github/
+//             └─ memfs/
+//                └─ src/
+//                   ├─ index.ts
+//                   ├─ package.json
+//                   ├─ tsconfig.json
+//                   └─ util/
+//                      ├─ index.ts
+//                      └─ print/
+//                         ├─ index.ts
+//                         └─ printTree.ts

src/volume.ts

@@ -16,6 +16,7 @@ import * as misc from './node/types/misc';
 import * as opts from './node/types/options';
 import { FsCallbackApi } from './node/types/FsCallbackApi';
 import { FsPromises } from './node/FsPromises';
+import {ToTreeOptions, toTreeSync} from './print';
 import { ERRSTR, FLAGS, MODE } from './node/constants';
 import {
   getDefaultOpts,
@@ -605,6 +606,10 @@ export class Volume implements FsCallbackApi {
     this.fromJSON(flattenJSON(json), cwd);
   }
 
+  public toTree(opts?: ToTreeOptions): string {
+    return toTreeSync(this, opts);
+  }
+
   reset() {
     this.ino = 0;
     this.inodes = {};