introduce utils for creating a jar archive

src/bin/tools/walk.ts

@@ -0,0 +1,19 @@
+import { readdir } from "fs/promises";
+import { resolve } from "path";
+
+/**
+ * Asynchronously and recursively walk a directory tree, yielding every file and directory
+ * found
+ *
+ * @param root the starting directory
+ * @returns AsyncGenerator
+ */
+export default async function* walk(root: string): AsyncGenerator<string, void, void> {
+    for (const entry of await readdir(root, { withFileTypes: true })) {
+        const absolutePath = resolve(root, entry.name);
+        if (entry.isDirectory()) {
+            yield absolutePath;
+            yield* walk(absolutePath);
+        } else yield absolutePath;
+    }
+}