webpack.base.js

const webpack = require('webpack');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const merge = require('webpack-merge');

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

const isProduction = process.env.NODE_ENV === 'production';

let config = {
  mode: isProduction ? 'production' : 'development',
  module: {
    rules: [
      { test: /\.tsx?$/, loader: "ts-loader" },
      {
        test: /\.vue$/,
        loader: 'vue-loader',
      },
      {
        test: /\.stylus$/,
        use: [
          'vue-style-loader',
          'css-loader',
          'stylus-loader'
        ]
      },
      {
        test: /\.pug$/,
        loader: 'pug-plain-loader'
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: file => /node_modules/.test(file) && !/\.vue\.js/.test(file),
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        use: {
          loader: 'url-loader',
          options: {
            limit: 10000,
            name: 'images/[name].[hash:8].[ext]',
          },
        },
      },
    ],
  },
  resolve: {
    // Add `.ts` and `.tsx` as a resolvable extension.
    extensions: [".ts", ".tsx", ".js"]
  },
  plugins: [
    new VueLoaderPlugin(),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
    }),
  ],
};

if (isProduction) {
  config = merge(config, {
    optimization: {
      minimizer: [new OptimizeCSSAssetsPlugin(), new UglifyJsPlugin()],
    },
  });
}

module.exports = config;