webpack.config.js

/* global __dirname, require, module*/

const webpack = require('webpack');
const path = require('path');
const env = require('yargs').argv.env; // use --env with webpack 2
const pkg = require('./package.json');

// const TerserJSPlugin = require('terser-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
// const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');

let libraryName = pkg.name;

let outputFile, mode;

if (env === 'build') {
  mode = 'production';
  outputFile = libraryName + '.min.js';
} else {
  mode = 'development';
  outputFile = libraryName + '.js';
}

const resolve = file => path.resolve(__dirname, file);

module.exports = {
  mode: mode,
  entry: __dirname + '/src/index.js',
  output: {
    path: resolve('./dist'),
    publicPath: '/dist/',
    filename: outputFile,
    library: libraryName,
    libraryTarget: 'umd',
    umdNamedDefine: true,
    globalObject: "typeof self !== 'undefined' ? self : this"
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: libraryName + '.css'
    }),
    new webpack.BannerPlugin({
      banner: `/*!
  * Kursor v${pkg.version}
  * Forged by Luis Daniel Rovira
  * Released under the MIT License.
  */`,
      raw: true,
      entryOnly: true
    })
  ],

  module: {
    rules: [
      {
        test: /(\.jsx|\.js)$/,
        loader: 'babel-loader',
        exclude: /(node_modules|bower_components)/
      },
      {
        test: /(\.jsx|\.js)$/,
        loader: 'eslint-loader',
        exclude: /node_modules/
      },
      {
        test: /\.styl(us)?$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'stylus-loader'
        ]
      }
    ]
  },
  resolve: {
    modules: [path.resolve('./node_modules'), path.resolve('./src')],
    extensions: ['*', '.js', '.json']
  }
};