webpack.config.js

const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const { basename, resolve } = require('path');

const { peerDependencies } = require('./package.json');

module.exports = (env, argv = {}) => ({
  entry: [resolve(__dirname, 'src/index.ts'), resolve(__dirname, 'src/_all.scss')],
  output: {
    filename: 'openmrs-esm-styleguide.js',
    chunkFilename: '[name].js',
    path: resolve(__dirname, 'dist'),
    library: { type: 'system' },
  },
  mode: argv.mode ?? process.env.NODE_ENV ?? 'production',
  devtool: 'source-map',
  module: {
    rules: [
      {
        test: /\.css$/i,
        use: [{ loader: MiniCssExtractPlugin.loader }, 'css-loader', { loader: require.resolve('postcss-loader') }],
      },
      {
        test: /\.s[ac]ss$/i,
        use: [
          { loader: MiniCssExtractPlugin.loader },
          'css-loader',
          { loader: require.resolve('postcss-loader') },
          'sass-loader',
        ],
      },
      {
        test: /\.(js|jsx|ts|tsx)$/,
        use: 'swc-loader',
      },
      {
        test: /\.(woff|woff2|png)?$/,
        type: 'asset/resource',
      },
      {
        test: /\.svg$/,
        use: 'svgo-loader',
        type: 'asset/source',
      },
      {
        test: /\.html$/,
        type: 'asset/source',
      },
    ],
  },
  devServer: {
    disableHostCheck: true,
    headers: {
      'Access-Control-Allow-Origin': '*',
    },
  },
  externals: Object.keys(peerDependencies || {}),
  resolve: {
    modules: ['node_modules'],
    extensions: ['.js', '.jsx', '.json', '.ts', '.tsx'],
  },
  optimization: {
    minimize: true,
    minimizer: [new CssMinimizerPlugin(), '...'],
  },
  plugins: [
    new CleanWebpackPlugin(),
    new MiniCssExtractPlugin({
      filename: 'openmrs-esm-styleguide.css',
    }),
    new BundleAnalyzerPlugin({
      analyzerMode: env && env.analyze ? 'static' : 'disabled',
    }),
  ],
});