fix: remove package name from standalone build output paths

[nehaaprasad]

What?

Fixed standalone build output paths to exclude workspace package names when using pnpm workspaces.

Why?

In Next.js 15.5.0+, when using output: 'standalone' with pnpm workspaces, the server.js file was incorrectly placed at .next/standalone/{package_name}/server.js instead of the expected .next/standalone/server.js. This broke existing deployment scripts and Docker configurations that expect the standard location.

How?

Modified the path calculation logic in two files:

• packages/next/src/build/utils.ts: Fixed server.js and package.json paths in copyTracedFiles function

• packages/next/src/build/index.ts: Fixed server.js path in writeStandaloneDirectory function and removed package name from middleware, pages, and app directory paths

• The fix ensures core server files are placed directly in the standalone directory while preserving directory structure for other files.

Related Issues

• fixes: Standalone build output path includes workspace package name in Next.js 15.5.0+ with pnpm workspace #84257

[ijjk]

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