webpack.production.js

const fs = require('fs');
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = env => ({
  entry: './src/index.jsx',
  mode: 'production',
  output: {
    path: __dirname + '/dist',
    filename: 'bundle.[contenthash].js'
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: 'src/index.ejs',
      title: 'X Journalism'
    })
  ],
  optimization: {
    minimize: true
  },
  module: {
    rules: [{
      test: /\.m?(js|jsx)$/,
      exclude: /(node_modules|bower_components)/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: [
            '@babel/preset-env',
            '@babel/preset-react'
          ]
        }
      }
    },
    {
      test: /\.css$/,
      use: ['style-loader', 'css-loader']
    },
    {
      test: /\.(png|svg|jpg|gif)$/,
      use: ['file-loader']
    },
    {
      test: /\.csv$/,
      loader: 'csv-loader',
      options: {
        dynamicTyping: true,
        header: true,
        skipEmptyLines: true
      }
    }]
  }
});