set up patches

packages/scripts/src/core/vfs/mixed.ts

@@ -0,0 +1,49 @@
+import { AbstractVFS } from "./abstract";
+
+export class MixedVFS extends AbstractVFS {
+  constructor(private vfses: AbstractVFS[]) {
+    super();
+  }
+
+  async init() {
+    for (const vfs of this.vfses) {
+      await vfs.init();
+    }
+
+    return this;
+  }
+
+  dispose() {
+    for (const vfs of this.vfses) {
+      vfs.dispose();
+    }
+  }
+
+  async has(path: string) {
+    for (const vfs of this.vfses) {
+      if (await vfs.has(path)) return true;
+    }
+
+    return false;
+  }
+
+  async raw(path: string) {
+    for (const vfs of this.vfses) {
+      if (await vfs.has(path)) return await vfs.raw(path);
+    }
+
+    throw new Error(`File not found: ${path}`);
+  }
+
+  async dir(path: string) {
+    const files = new Set<string>();
+
+    for (const vfs of this.vfses) {
+      for (const file of await vfs.dir(path)) {
+        files.add(file);
+      }
+    }
+
+    return Array.from(files);
+  }
+}