const path = require('path'); module.exports = (env = {}) => ( { mode: 'production', entry: { app: ['./src/index.js'] }, output: { library: 'd3tooltip', libraryTarget: 'umd', path: path.resolve(__dirname, 'dist'), filename: env.minimize ? 'map2tree.min.js' : 'map2tree.js' }, module: { rules: [ { test: /\.js$/, loader: 'babel-loader', exclude: /node_modules/ } ] }, optimization: { minimize: !!env.minimize }, performance: { hints: false } } );