webpack.config.js

const path = require('path')
const webpack = require('webpack')
const VueLoaderPlugin = require('vue-loader/lib/plugin')

module.exports = {
  entry: './src/Printer.vue',
  plugins: [
    new VueLoaderPlugin()
  ],
  mode: 'development',
  output: {
    path: path.resolve(__dirname, './'),
    publicPath: './',
    filename: 'index.js',
    libraryTarget: 'umd',
    library: '@unicorns/printer',
    umdNamedDefine: true
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      '@': path.resolve(__dirname, 'src')
    }
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader'
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      }
    ]
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  module.exports.mode = 'production'
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}

// test specific setups
if (process.env.NODE_ENV === 'test') {
  module.exports.externals = [require('webpack-node-externals')()]
  module.exports.devtool = 'eval'
}