From b7a09a6437c5cf0575165b3f223e10cce9aa0e30 Mon Sep 17 00:00:00 2001
From: Guilherme Carvalho <77246+gvc@users.noreply.github.com>
Date: Wed, 30 Oct 2024 14:06:04 -0300
Subject: [PATCH] fix: don't move .next directory if it is in the correct place

---
 packages/cli/src/commands/build.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/cli/src/commands/build.ts b/packages/cli/src/commands/build.ts
index c2bb07bf84..d96fe93d4d 100644
--- a/packages/cli/src/commands/build.ts
+++ b/packages/cli/src/commands/build.ts
@@ -93,7 +93,13 @@ async function copyResources(basePath: string) {
   if (process.env.BUILD_CONTEXT === 'vercel') {
     const toDir = process.cwd()
 
-    await copyResource(`${tmpDir}/.next`, `${toDir}/.faststore/.next`)
+    // Because of how copyResource works (delete the target directory if it exists),
+    // if we're moving something to the same place it is it will break.
+    const nextOutputDirectory = `${tmpDir}/.next`
+    const expectedOutputDirectory = `${toDir}/.faststore/.next`
+    if (nextOutputDirectory !== expectedOutputDirectory) {
+      await copyResource(nextOutputDirectory, expectedOutputDirectory)
+    }
     await copyResource(`${tmpDir}/public`, `${toDir}/public`)
   } else {
     await copyResource(`${tmpDir}/.next`, `${userDir}/.next`)