webpack.config.js

const path = require('path');

const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const VueLoaderPlugin = require('vue-loader/lib/plugin');

module.exports = {
  mode: 'development',
  entry: './src/main.js',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist')
  },
  module: {
    rules: [
      {
        test: /\.sass$/,
        use: [
          // vue-style-loader is necessary for hot reload in development mode
          process.env.NODE_ENV !== 'production' ? 'vue-style-loader' : MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader?indentedSyntax',
        ],
      },
      {
        test: /\.(png|jpg|gif)$/,
        use: [
          'file-loader',
        ]
      },
      {
        test: /\.vue$/,
        loader: 'vue-loader'
      },
    ],
  },
  devServer: {
    contentBase: path.join(__dirname, 'dist'),
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      'src': path.resolve(__dirname, 'src'), // allows you to reference src directly from anywhere (e.g. import {} from 'src/js/file')
    }
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: 'style.css',
      chunkFilename: '[name].css',
    }),
    new HtmlWebpackPlugin({
      template: './src/index.html',
    }),
    new CopyWebpackPlugin([
      { from: './src/assets/', to: 'assets/'}
    ]),
    new VueLoaderPlugin(),
  ]
}