webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const ManifestPlugin = require('webpack-manifest-plugin');

module.exports = {
  entry: './frontend/javascript/index.js',
  devtool: 'source-map',
  // Set some or all of these to true if you want more verbose logging:
  stats: {
    modules: false,
    builtAt: false,
    timings: false,
    children: false,
  },
  output: {
    path: path.resolve(__dirname, 'output', '_bridgetown', 'static', 'js'),
    filename: 'all.[contenthash].js',
  },
  resolve: {
    extensions: ['.js', '.jsx'],
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: '../css/all.[contenthash].css',
    }),
    new ManifestPlugin({
      fileName: path.resolve(__dirname, '.bridgetown-webpack', 'manifest.json'),
    }),
  ],
  module: {
    rules: [
      {
        test: /\.(js|jsx)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env'],
            plugins: [
              ['@babel/plugin-proposal-decorators', {'legacy': true}],
              ['@babel/plugin-proposal-class-properties', {'loose': true}],
              [
                '@babel/plugin-transform-runtime',
                {
                  helpers: false,
                },
              ],
              [
                'prismjs',
                {
                  languages: [
                    'markup',
                    'css',
                    'clike',
                    'javascript',
                    'bash',
                    'crystal',
                    'docker',
                    'erb',
                    'git',
                    'graphql',
                    'haml',
                    'liquid',
                    'markdown',
                    'markup-templating',
                    'ruby',
                    'scss',
                    'yaml',
                  ],
                  plugins: ['line-numbers'],
                  theme: 'okaidia',
                  css: true,
                },
              ],
            ],
          },
        },
      },
      {
        test: /\.(s[ac]|c)ss$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'postcss-loader',
          {
            loader: 'sass-loader',
            options: {
              sassOptions: {
                includePaths: [path.resolve(__dirname, 'src/_components')],
              },
            },
          },
        ],
      },
      {
        test: /\.woff2?$|\.ttf$|\.eot$|\.svg$/,
        loader: 'file-loader',
        options: {
          outputPath: '../fonts',
          publicPath: '../fonts',
        },
      },
    ],
  },
};