production mix versioning ...

AppServiceProvider.php

<?php  
// .... 
public function boot()
{
        
        Blade::directive('mix', function ($path) {

            if(! app()->environment('production')) {
                return "<?=e(mix({$path}))?>";
            }

            $path = trim($path, '"\'');

            if (! Str::startsWith($path, '/')) {
                    $path = "/{$path}";
            }

            $manifestPath = public_path('/mix-manifest.json');


            if (! file_exists($manifestPath)) {
                throw new \Exception('The Mix manifest does not exist.');
            }

            $manifest = json_decode(file_get_contents($manifestPath), true);

            if (! isset($manifest[$path])) {
                $exception = new \Exception("Unable to locate Mix file: {$path}.");

                if (! app('config')->get('app.debug')) {
                    report($exception);

                    return $path;
                } else {
                    throw $exception;
                }
            }

            preg_match('/(.*?)\/([a-z0-9._-]+)\.([a-z]+)\?id=([\w\d]+)/', $manifest[$path], $matches);


            return url("{$matches[1]}/{$matches[2]}.{$matches[4]}.{$matches[3]}");
        });
}

webpack.mix.js

mix.then(function() {
    if (mix.inProduction()) {
        let jsFileVersion = new File('public/js/app.js').version()
        new File('public/js/app.js').rename('app.' + jsFileVersion + '.js')
        let cssFileVersion = new File('public/css/app.css').version()
        new File('public/css/app.css').rename('app.' + cssFileVersion + '.css')
        console.log("[production] renamed app.js -> app." + jsFileVersion + ".js")
        console.log("[production] renamed app.css -> app." + cssFileVersion + ".css")
    }
});