From 67a494bd3be6818f9f78c535fb01737a340485a1 Mon Sep 17 00:00:00 2001
From: Robert Nagy <ronagy@icloud.com>
Date: Mon, 24 Feb 2025 16:39:44 +0100
Subject: [PATCH 1/2] child_process: add fast path for `spawn`

PR-URL: https://github.com/nodejs/node/pull/57196
---
 lib/child_process.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/child_process.js b/lib/child_process.js
index 3fb21f755be3d7..0e04e49880289f 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -743,6 +743,20 @@ function abortChildProcess(child, killSignal, reason) {
  * @returns {ChildProcess}
  */
 function spawn(file, args, options) {
+  if (options == null && ArrayIsArray(args) && typeof file === 'string' && !StringPrototypeIncludes(file, '\u0000')) {
+    const child = new ChildProcess();
+    options = {
+      args,
+      detached: false,
+      file,
+      windowsHide: false,
+      windowsVerbatimArguments: false,
+    };
+    debug('spawn', options);
+    child.spawn(options);
+    return child;
+  }
+
   options = normalizeSpawnArguments(file, args, options);
   validateTimeout(options.timeout);
   validateAbortSignal(options.signal, 'options.signal');

From d41914b63aacb5761fb12559ae7f7fde1a94f7df Mon Sep 17 00:00:00 2001
From: Robert Nagy <ronagy@icloud.com>
Date: Tue, 25 Feb 2025 20:25:09 +0100
Subject: [PATCH 2/2] WIP

---
 lib/child_process.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/child_process.js b/lib/child_process.js
index 0e04e49880289f..1afd5406af9fc7 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -743,10 +743,17 @@ function abortChildProcess(child, killSignal, reason) {
  * @returns {ChildProcess}
  */
 function spawn(file, args, options) {
-  if (options == null && ArrayIsArray(args) && typeof file === 'string' && !StringPrototypeIncludes(file, '\u0000')) {
+  if (
+    options == null &&
+    ArrayIsArray(args) &&
+    typeof file === 'string' &&
+    file.length > 0 &&
+    !StringPrototypeIncludes(file, '\u0000') &&
+    !isZOS
+  ) {
     const child = new ChildProcess();
     options = {
-      args,
+      args: [file, ...args],
       detached: false,
       file,
       windowsHide: false,