From f0485d83d9ef834d8ecb0a1b32a708c50eb3e370 Mon Sep 17 00:00:00 2001
From: Anthony Fu <anthonyfu117@hotmail.com>
Date: Tue, 26 Jul 2022 21:46:06 +0800
Subject: [PATCH] perf(vite-node): only invalidate cache for user code (#6156)

---
 packages/vite/src/runtime/vite-node.mjs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/vite/src/runtime/vite-node.mjs b/packages/vite/src/runtime/vite-node.mjs
index 88b63e3fb2..94f45f25b3 100644
--- a/packages/vite/src/runtime/vite-node.mjs
+++ b/packages/vite/src/runtime/vite-node.mjs
@@ -22,6 +22,11 @@ export default async (ssrContext) => {
   process.server = true
   render = render || (await runner.executeFile(viteNodeOptions.entryPath)).default
   const result = await render(ssrContext)
-  runner.moduleCache.clear()
+  // reset cache for non-node-modules
+  for (const key of runner.moduleCache.keys()) {
+    if (!key.includes('/node_modules/')) {
+      runner.moduleCache.delete(key)
+    }
+  }
   return result
 }