Deduplicate more

src/utils.ts

@@ -13,6 +13,18 @@ export async function ensureDir(dir: string) {
   await fs.promises.mkdir(dir, { recursive: true });
 }
 
+/**
+ * Check if a file or directory exists at the given path.
+ */
+export async function pathExists(targetPath: string): Promise<boolean> {
+  try {
+    await fs.promises.access(targetPath);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
 export function clampNumber(value: number, min: number, max: number): number {
   return Math.max(min, Math.min(max, value));
 }