From da64197bc8bcd8f848aef3ae7a87a2d0d56ebd55 Mon Sep 17 00:00:00 2001
From: ygj6 <yuangongji@foxmail.com>
Date: Mon, 19 Jul 2021 16:05:55 +0800
Subject: [PATCH] fix(util): copyDir may cause an infinite loop (#4310)

---
 packages/vite/src/node/utils.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/vite/src/node/utils.ts b/packages/vite/src/node/utils.ts
index 6ded895368fa7c..b7b40af400259d 100644
--- a/packages/vite/src/node/utils.ts
+++ b/packages/vite/src/node/utils.ts
@@ -351,6 +351,9 @@ export function copyDir(srcDir: string, destDir: string): void {
   fs.mkdirSync(destDir, { recursive: true })
   for (const file of fs.readdirSync(srcDir)) {
     const srcFile = path.resolve(srcDir, file)
+    if (srcFile === destDir) {
+      continue
+    }
     const destFile = path.resolve(destDir, file)
     const stat = fs.statSync(srcFile)
     if (stat.isDirectory()) {