Bug/Documentation: How to share code between multiple vite.config.ts files

[philly-vanilly]

Documentation is

• Missing
• Outdated
• Confusing
• Not sure?

Explain in Detail

I have problems with vite.config.ts importing from a typescript file in another local (monorepo-lib, also typescript) package. It tells me that I cannot use "import outside a module" or "unknown token export".

What have I tried so far? When I change the lib in package.json to "type": "module" it complains that I try to use an ESM module and I don't want to make my whole main app a module and just turning vite.config.ts to .mts does not work.

I am using target and module esnext in my lib and in my app. I also have compotite: true with a reference-path from app's to lib's tsconfig.

Please tell me (and update the docs) how to share code between multiple vite.config.ts files. I have 6 different apps running in module federation and want to share some local setup constants and functions. If it is not possible please add at least a warning in the docs or something.

Thank you, I appreciate your work!

Your Suggestion for Changes

Reproduction

No response

Steps to reproduce

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[NozomuIkuta]

Would you provide a reproduction or repository, so that someone including me could understand your situation in more detail and could help?

[bluwy]

I think this is a duplicate of #5370. The linked issue provides some workarounds.