webpack.config.js

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

module.exports = {
  mode: process.env.NODE_ENV || 'development',
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'tree-diagram.js',
    library: 'TreeDiagram',
    libraryTarget: 'umd',
    umdNamedDefine: true,
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.css$/,
        use: [
          'vue-style-loader',
          'css-loader',
        ],
      },
    ],
  },
  plugins: [
    new VueLoaderPlugin(),
  ],
  resolve: {
    alias: {
      vue$: 'vue/dist/vue.esm.js',
    },
    extensions: ['*', '.js', '.vue', '.json'],
  },
  externals: ['vue'],
  devServer: {
    historyApiFallback: true,
    noInfo: true,
    overlay: true,
  },
  performance: {
    hints: false,
  },
};