webpack.config.js

const path = require('path');
const TerserPlugin = require('terser-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');

const libraryName = '@sergeymyssak/swipeable-bottom-sheet';

const config = {
  mode: 'production',
  entry: {
    min: path.join(__dirname, 'src/SwipeableBottomSheetContainer.tsx'),
  },
  output: {
    path: path.join(__dirname, 'lib'),
    filename: '[name].js',
    library: libraryName,
    libraryTarget: 'umd',
    umdNamedDefine: true,
    globalObject: 'this',
  },
  module: {
    rules: [
      {
        test: /\.*css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              modules: true,
            },
          },
          'css-loader',
          'sass-loader',
        ],
      },
      {
        test: /\.tsx?$/,
        loader: 'ts-loader',
        exclude: /node_modules/,
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin(),
    new OptimizeCssAssetsPlugin({
      assetNameRegExp: /min\.css$/g,
      cssProcessor: require('cssnano'),
      cssProcessorPluginOptions: {
        preset: ['default', { discardComments: { removeAll: true } }],
      },
      canPrint: true,
    }),
  ],
  optimization: {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        include: /min\.js$/,
        terserOptions: {
          output: {
            comments: false,
          },
        },
        extractComments: false,
      }),
    ],
  },
  resolve: {
    alias: {
      react: path.resolve(__dirname, './node_modules/react'),
      'react-dom': path.resolve(__dirname, './node_modules/react-dom'),
    },
    extensions: ['.tsx', '.ts', '.js'],
  },
  externals: {
    react: {
      commonjs: 'react',
      commonjs2: 'react',
      amd: 'React',
      root: 'React',
    },
    'react-dom': {
      commonjs: 'react-dom',
      commonjs2: 'react-dom',
      amd: 'ReactDOM',
      root: 'ReactDOM',
    },
  },
};

module.exports = config;