webpack.config.js

var path = require('path');
var webpack = require('webpack');

const yaml= require('yamljs');
const VuewLoaderPlugin = require('vue-loader/lib/plugin')

module.exports = {
  mode: 'development',
  entry: './src/main.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'build.js'
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          'vue-style-loader',
          {
            loader: 'css-loader',
            options:{
              esModule: false
            }
          }
        ],
      },      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
          }
          // other vue-loader options go here
        }
      },
      {
        test: /\*html$/i,
        loader: 'html-loader'
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      },
      {
        test: /\.yaml$/,
        type: 'json',
        parser: {
          parse: yaml.parse
        }
      }
    ]
  },
  plugins: [
    new VuewLoaderPlugin()
  ],
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    },
    extensions: ['*', '.js', '.vue', '.json']
  },
  devServer: {
    historyApiFallback: true,
    overlay: true,
    publicPath: '/dist'
  },
  performance: {
    hints: false
  },
  devtool: 'eval-source-map'
}

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

  module.exports.optimization = { minimize: true }
}