fix(terser): always make at least 1 worker thread (rollup#1594)

easrng · Oct 8, 2023 · 90f6af4 · 90f6af4
1 parent 841a039
commit 90f6af4
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/packages/terser/src/worker-pool.ts b/packages/terser/src/worker-pool.ts
@@ -40,7 +40,9 @@ export class WorkerPool extends EventEmitter {
   constructor(options: WorkerPoolOptions) {
     super();
 
-    this.maxInstances = options.maxWorkers || cpus().length;
+    // cpus() can return [] on some platforms,
+    // and we always need at least 1 worker
+    this.maxInstances = options.maxWorkers || cpus().length || 1;
     this.filePath = options.filePath;
 
     this.on(freeWorker, () => {