fix css import with webpack

[calunia]

Hello,
Actually, when i try to import the css with webpack encore, i got the error :
Module not found: Error: Package path ./css/datepicker.css is not exported from package node_modules/stimulus-datepicker (see exports field in node_modules/stimulus-datepicker/package.json)

Change
"exports": "./src/datepicker.js",

to

"files": [
    "css/",
    "src/"
  ],

Fix this issue for me but i don't know how i can run your tests :/
So i open this pr if it can help someone :)
Thx Calunia

[airblade]

Thanks for this.

I really have no idea what I'm doing with package.json! There's plenty of documentation online but somehow it never quite explains anything.

I'll try this on my own app (which use import-maps) to check it keeps working.

[Zajn]

@airblade Any chance you've had time to try this out with import-maps? I've also run into this issue, and would love to be able to just import the CSS. I'm also not super familiar with how package.json should be structured, so I don't know what migrating from exports to files affects.

Other libraries we use seem to use the files declaration in their package.json (trix comes to mind).

[airblade]

@Zajn I haven't tried it out yet.

Thanks for the link to trix's package.json. I see they also have "style": "dist/trix.css" – I wonder what that affects?

Given that import maps are a Javascript feature rather than CSS, how do you plan to use/reference the datepicker's CSS?

[Zajn]

Given that import maps are a Javascript feature rather than CSS, how do you plan to use/reference the datepicker's CSS?

The project I'm working on isn't using import maps. We're using jsbundling-rails, and use css-loader to allow us load CSS.

I was asking about import maps since it sounded like you used them and were waiting to see how this PR would affect projects that use it!

[airblade]

Oh, I see. I do use import maps but I don't use any kind of CSS bundling; I copy-paste the CSS from any client-side packages I install (usually only this one) into my Rails app. Which is a bit hacky but better than the complexity of CSS bundling.