webpack.config.js

var path = require('path');
var webpack = require('webpack');
var CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports = {
  entry: './src/index.ts',
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: 'dist/',
    filename: 'index.js'
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        exclude: /node_modules/,
        loader: 'vue-loader',
        options: {

          loaders: {
            'scss': 'vue-style-loader!css-loader!sass-loader',
            'sass': 'vue-style-loader!css-loader!sass-loader?indentedSyntax',
          }
        }
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        exclude: /node_modules/,
        loader: 'url-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      },
      {
        test: /\.scss$/,
        use: [{
          loader: "style-loader"
        }, {
          loader: "css-loader"
        }, {
          loader: "sass-loader"
        }]
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader'
      },
      {
        test: /\.ts(x?)$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'babel-loader'
          },
          {
            loader: 'ts-loader',
            options: {
              appendTsSuffixTo: [/\.vue$/]
            }
          }
        ]
      }
    ]
  },
  resolve: {
    extensions: ['.ts', '.tsx', '.js', '.vue', '.json'],
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    }
  },
  devServer: {
    hot: true,
    stats: 'minimal'
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map',
  plugins: [
    new CopyWebpackPlugin([
      { from: 'src/assets', to: 'assets' }
    ]),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin()
  ]
}

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.optimize.UglifyJsPlugin({
      sourceMap: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}