UnoCSS is broken using Bun | Bun | Page 1

lucid fjord Dec 19, 2024, 1:27 PM

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Howdy everyone,

I have noticed this issue for quite a while but just now created a minimal recreation as well.

TLDR: unocss started breaking in Bun (v1.1.40 and prior versions) starting version 0.61.7. v0.61.6 is the last known version working.

The minimal recreation is here:

https://github.com/stacksjs/bun-unocss-issue

If there's any chance to get this issue somehow resolved, that would be greatly appreciated, especially with Vite 6 out now. It will slowly but surely start locking us from more and more dependency upgrades (i.e. Vite, VitePress, eslint configs & plugins, unocss itself, and potentially more)

A relating issue here: https://github.com/oven-sh/bun/issues/13338

🙏💙

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The diff of those 2 uno versions is: https://github.com/unocss/unocss/compare/v0.61.6...v0.61.7

GitHub

Comparing v0.61.6...v0.61.7 · unocss/unocss

The instant on-demand atomic CSS engine. Contribute to unocss/unocss development by creating an account on GitHub.

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I wonder if it's relating unconfig

random bloom Dec 19, 2024, 1:59 PM

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yeah that looks most suspicious

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the rest of the diff is mostly tests and dependency updates

lucid fjord Dec 19, 2024, 2:05 PM

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True, I am looking a little bit more at importx and see if I can recreate some issue there

random bloom Dec 19, 2024, 2:16 PM

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its probably the interop default import

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they probably shouldn't remove that

lucid fjord Dec 19, 2024, 2:19 PM

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Yea, that definitely would fix it. I had an issue there before and that's what led me to PR that interopDefault (which resolved bun compatibility issue back then)

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I will ask antfu to see if there's some approach he would like

#UnoCSS is broken using Bun