prependData doesn't work on postcss? and also test is wrong?

[felixsanz]

Describe the bug

I'm trying to debug why when i pass prependData it does not work

My config is this:

...
    preprocess: [
          mdsvex(mdsvexConfig),
          preprocess({
        postcss: {
            prependData: '/* potato */',
            plugins: [
            nesting,
            customMedia,
            autoprefixer,
            ],
             },
          }),
    ],
...

Logs

To Reproduce

Expected behavior Have the css comment in the app

Stacktraces

Information about your project:

• svelte-preprocess version (Please check you can reproduce the issue with the latest release!) 4.10.1

Additional context

[DanielRios549]

Did you figure out how to fix this? I need to prepend a file with function selectors in order to use them with @extend, but it does not work

[felixsanz]

Did you figure out how to fix this? I need to prepend a file with function selectors in order to use them with @extend, but it does not work

this works:

sveltePreprocess({
  postcss: {
    prependData: `@import "${path.join(path.resolve('./src/lib/styles'), 'breakpoints.css')}";`,
    plugins: [
        cssImport,
        nesting,
        customMedia,
        autoprefixer,
    ],
},
}),

my issue was.. that i wasn't using cssImport plugin and you need it to use @import

[DanielRios549]

This is weird. Need the Import plugin it's ok, but why it is necessary to use path? In config.preprocess.scss.prependData it works without resolving the path. But anyway, thanks so much, this fixes the problem.

[felixsanz]

This is weird. Need the Import plugin it's ok, but why it is necessary to use path? In config.preprocess.scss.prependData it works without resolving the path. But anyway, thanks so much, this fixes the problem.

it's not, i use it because i want

[DanielRios549]

Strange, when I do not use path it fails to find the file

[felixsanz]

Strange, when I do not use path it fails to find the file

Probably because you're using a wrong path, but using fs.path you always find the right file