Tailwind V4 support

[Bricklou]

Is your feature related to a problem?

Tailwindcss V4 dropped few hours ago. And with the new major release, the way configuration are handled completely, moving from a js file to a css-firsr configuration. Which means the tailwindcss pack doesn't work anymore since it doesn't detect any JS configuration.

Describe the new feature

The tailwindcss pack needs some tweaking in order to make it work again.

Additional context

No response

[azdanov]

Easiest fix would be to add tailwind.css to the rooter config file list and update the readme in the pack to mention that. I guess. Haven't tried yet.

[Bricklou]

The issue is that it enforces the file name. So, it won't work on existing projects that don't use this name.

[azdanov]

No, it won't, but an alternative is to always scan all CSS files for the magic string, which will worsen performance. There's kind of no easy solution here thanks to their decision to drop a config file.

[Bricklou]

What about scanning all css files once at startup to check for the presence of specific patterns ?
It seems the VSCode extension is doing something similar to this : https://github.com/tailwindlabs/tailwindcss-intellisense/blob/c9fb9bc04c0158c6e47e0c25a6600a21f335049a/packages/vscode-tailwindcss/src/extension.ts#L94-L98
https://github.com/tailwindlabs/tailwindcss-intellisense/blob/c9fb9bc04c0158c6e47e0c25a6600a21f335049a/packages/vscode-tailwindcss/src/extension.ts#L145

[azdanov]

Yep. I've seen that.

They seem to have lots of issues themselves with projects not being recognized https://github.com/tailwindlabs/tailwindcss-intellisense/issues

And this could happen in larger projects tailwindlabs/tailwindcss-intellisense#1109

[azdanov]

Would need some help from someone more experienced in the Neovim and Lua ecosystem 🙂
I just tried a simple solution that helps somewhat with new projects.

[Bricklou]

Yeah, it looks like it is a big design flaw on their side.

[azdanov]

Another option is to scan package.json for the tailwind package. But maybe there is a reason they didn't opt in for that.