webpack.mix.js

let mix = require('laravel-mix')
let glob = require('glob-all')
let PurgecssPlugin = require('purgecss-webpack-plugin')

let isProduction = (process.env.NODE_ENV === 'production' || process.argv.includes('-p'))

/**
 * Custom PurgeCSS Extractor
 * https://github.com/FullHuman/purgecss
 * https://github.com/FullHuman/purgecss-webpack-plugin
 */
class BootstrapExtractor {
  static extract(content) {
    return content.match(/[A-z0-9-:\/]+/g)
  }
}

/*
 |--------------------------------------------------------------------------
 | Mix Asset Management
 |--------------------------------------------------------------------------
 |
 | Mix provides a clean, fluent API for defining some Webpack build steps
 | for your Laravel application. By default, we are compiling the Sass
 | file for your application, as well as bundling up your JS files.
 |
 */

mix
  .options({ processCssUrls: false, publicPath: 'public' })
  .copyDirectory('node_modules/@fortawesome/fontawesome-free/webfonts', 'public/fonts')
  .autoload({
    jquery: ['$', 'window.jQuery', 'jQuery', 'jquery'],
    Popper: ['window.Popper'],
    Tether: ['window.Tether']
  })
  .js('assets/scripts/app.js', 'public/assets/scripts')
  .extract(['jquery', 'popper.js', 'tooltip.js'], 'public/assets/scripts/vendor.js')
  .sass('assets/styles/app.scss', 'public/assets/styles')

if (isProduction) {
  mix.webpackConfig({
    plugins: [
      new PurgecssPlugin({
        paths: glob.sync([
          // Modify the below paths to point to where your view files are located (and their extension)
          path.join(__dirname, 'views', '**/*.pug'),
          path.join(__dirname, 'assets', 'scripts', '**/*.js')
        ]),
        extractors: [{
          extractor: BootstrapExtractor,
          extensions: ['html', 'js', 'pug', 'blade.php']
        }]
      })
    ]
  })
  mix.version()
}

// Full API
// mix.js(src, output);
// mix.react(src, output); <-- Identical to mix.js(), but registers React Babel compilation.
// mix.preact(src, output); <-- Identical to mix.js(), but registers Preact compilation.
// mix.coffee(src, output); <-- Identical to mix.js(), but registers CoffeeScript compilation.
// mix.ts(src, output); <-- TypeScript support. Requires tsconfig.json to exist in the same folder as webpack.mix.js
// mix.extract(vendorLibs);
// mix.sass(src, output);
// mix.standaloneSass('src', output); <-- Faster, but isolated from Webpack.
// mix.fastSass('src', output); <-- Alias for mix.standaloneSass().
// mix.less(src, output);
// mix.stylus(src, output);
// mix.postCss(src, output, [require('postcss-some-plugin')()]);
// mix.browserSync('my-site.test');
// mix.combine(files, destination);
// mix.babel(files, destination); <-- Identical to mix.combine(), but also includes Babel compilation.
// mix.copy(from, to);
// mix.copyDirectory(fromDir, toDir);
// mix.minify(file);
// mix.sourceMaps(); // Enable sourcemaps
// mix.version(); // Enable versioning.
// mix.disableNotifications();
// mix.setPublicPath('path/to/public');
// mix.setResourceRoot('prefix/for/resource/locators');
// mix.autoload({}); <-- Will be passed to Webpack's ProvidePlugin.
// mix.webpackConfig({}); <-- Override webpack.config.js, without editing the file directly.
// mix.babelConfig({}); <-- Merge extra Babel configuration (plugins, etc.) with Mix's default.
// mix.then(function () {}) <-- Will be triggered each time Webpack finishes building.
// mix.extend(name, handler) <-- Extend Mix's API with your own components.
// mix.options({
//   extractVueStyles: false, // Extract .vue component styling to file, rather than inline.
//   globalVueStyles: file, // Variables file to be imported in every component.
//   processCssUrls: true, // Process/optimize relative stylesheet url()'s. Set to false, if you don't want them touched.
//   purifyCss: false, // Remove unused CSS selectors.
//   uglify: {}, // Uglify-specific options. https://webpack.github.io/docs/list-of-plugins.html#uglifyjsplugin
//   postCss: [] // Post-CSS options: https://github.com/postcss/postcss/blob/master/docs/plugins.md
// });