lbundle/dist/helpers/get-rollup-styler-plugin.mjs

Small zero-configuration bundler build on top of Rollup.js and SWC for NPM libraries

import { stylesExtensions } from '../constants/styles-extensions.mjs';
import styles from 'rollup-plugin-styler';
import postcssImport from 'postcss-import';
import path from 'path';
import { getUrlOfPartial } from '../utils/url.mjs';
import { packageFilterBuilder, resolveSync } from '../utils/resolve.mjs';

const finalize = (id)=>({
        file: id.replace(/\.css$/i, '')
    });
const conditions = [
    'sass',
    'style'
];
const getRollupStylerPlugin = (param)=>{
    let { options, cssFilename } = param;
    return styles({
        autoModules: true,
        extensions: stylesExtensions,
        mode: [
            'extract',
            cssFilename
        ],
        sourceMap: true,
        to: cssFilename,
        sass: {
            importer: (url, importer)=>{
                if (path.isAbsolute(url) || url.startsWith('.')) return null;
                const partialUrl = getUrlOfPartial(url);
                const resolverOptions = {
                    caller: 'Sass importer',
                    basedirs: [
                        path.dirname(importer)
                    ],
                    extensions: stylesExtensions,
                    packageFilter: packageFilterBuilder(url, {
                        conditions
                    })
                };
                try {
                    return finalize(resolveSync([
                        partialUrl,
                        url
                    ], resolverOptions));
                } catch  {
                    return null;
                }
            }
        },
        plugins: [
            postcssImport({
                root: options.cwd
            })
        ]
    });
};

export { getRollupStylerPlugin };
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