Bust caches in Laravel with Grunt. This will generate urls like "assets/css/style-cc673fcda9ae387ae82c83913f8b43a4.css"

default.blade.php

{{ HTML::style(asset_bust('assets/css/style.css')) }}

# will generate as assets/css/style-cc673fcda9ae387ae82c83913f8b43a4.css

Gruntfile.js

module.exports = function(grunt) {
  var changedCoffee, onChange;
  grunt.initConfig({
      
    // Read project settings
    pkg: grunt.file.readJSON("package.json"),
    
    cachebuster: {
        build: {
            options: {
                basedir: 'public/',
                format: 'php',
                banner:
                    '/**\n' +
                    ' * GENERATED FILE, DO NOT EDIT. This file is simply a collection of generated hashes for static assets in \n' +
                    ' * the project. It is generated by grunt, see Gruntfile.js for details.\n' +
                    ' */',
                complete: function(hashes) {
                    return {
                        md5: hashes
                    };
                }
            },
            src: ['public/assets/**/*'],
            dest: 'app/config/cachebuster.php'   
        }
    },
  });
};

helper.php

if ( ! function_exists('asset_bust'))
{
    function asset_bust($path, $secure = null)
    {
        $busts = Config::get('cachebuster.md5');
        if(!is_null($busts) && is_array($busts) && array_key_exists($path, $busts))
        {
            $md5 = $busts[$path];
            $parts = pathinfo($path);
            $dirname = ends_with($parts['dirname'], '/') ? $parts['dirname'] : $parts['dirname'] . '/';
            $path = "{$dirname}{$parts['filename']}-$md5.{$parts['extension']}";
        }
        
        return asset($path, $secure);
    }
}

yoursite-nginx.conf

    location ~* (.+)\-(?:[0-9a-f]\{32\})\.(js|css|png|jpg|jpeg|gif)$ {
      try_files $uri $1.$2;
    }
   
    #before any other location blocks