webpack.config.js

const webpack = require('webpack');
const pkg = require('./package.json');
const PrepackWebpackPlugin = require('prepack-webpack-plugin').default;

const banner = `
  ${pkg.name} - ${pkg.description}
  Author: ${pkg.author}
  Version: v${pkg.version}
  URL: ${pkg.homepage}
  License: ${pkg.license}
`;

const plugins = [];

if (process.env.NODE_ENV === 'production') {
  plugins.push(new PrepackWebpackPlugin({}));
}

plugins.push(
  new webpack.BannerPlugin({
    banner
  })
);

module.exports = {
  mode: process.env.NODE_ENV,
  entry: {
    smarquee: './src/smarquee.js'
  },
  output: {
    path: __dirname + '/dist',
    library: 'Smarquee',
    libraryTarget: 'umd',
    libraryExport: 'default',
    filename: 'smarquee.min.js'
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader'
      }
    ]
  },
  optimization: {
    minimize: true
  }
};