webpack.config.js

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

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'index.js',
    library: 'vue-js-popover',
    libraryTarget: 'umd'
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            scss: 'vue-style-loader!css-loader!sass-loader',
            sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax'
          }
        }
      },
      {
        test: /\.scss$/,
        loader: 'vue-style-loader!css-loader!sass-loader'
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      }
    ]
  },
  externals: {
    vue: 'vue'
  },
  resolve: {
    alias: {
      vue$: 'vue/dist/vue.esm.js'
    }
  },
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        sourceMap: true,
        parallel: 4,
        uglifyOptions: {
          compress: {}
        }
      })
    ]
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true
  },
  performance: {
    hints: false
  },
  devtool: '#source-map',
  plugins: [
    new VueLoaderPlugin(),
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ]
}