webpack.config.js

var path = require("path");
const nodeExternals = require("webpack-node-externals");
const autoprefixer = require('autoprefixer');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const BundleAnalyzerPlugin = require("webpack-bundle-analyzer")
  .BundleAnalyzerPlugin;
module.exports = {
  mode: "production",
  entry: "./index.tsx",
  output: {
    path: path.resolve("lib"),
    filename: "index.js",
    libraryTarget: "commonjs2"
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /(node_modules|lib)/,
        include: path.resolve("components"),
        use: "babel-loader"
      },
      {
        test: /\.(ts|tsx)$/,
        exclude: /node_modules/,
        include: path.resolve("components"),
        use: "ts-loader"
      },
      {
        test: /\.less$/,
        use: [
          MiniCssExtractPlugin.loader,
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
            },
          },
          {
            loader: require.resolve('less-loader'),
            options: {
              javascriptEnabled: true,
              sourceMap: true,
            },
          },
        ],
      },
      {
        test: /\.(jpg|png|svg)$/,
        include: path.resolve("./components"),
        use: {
          loader: 'url-loader',
        },
      },
      {
        test: /\.svg$/,
        include: path.resolve("./components"),
        loader: 'url-loader'
      }
    ]
  },
  resolve: {
    // Add '.ts' and '.tsx' as resolvable extensions.
    extensions: [".ts", ".tsx", ".js", ".jsx", ".css", ".less"]
  },
  plugins: [
    new BundleAnalyzerPlugin(),
    new MiniCssExtractPlugin({
      filename: '[name].css',
    })
  ],
  externals: [nodeExternals()]
};