Gruntfile.js

module.exports = function(grunt) {

  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),

    shell: {
      runTest: {
        command: 'phpunit'
      },
      clear: {
        command: 'clear'
      },
      phpcs: {
        command: 'phpcs --standard=PSR2 ./app'
      }
    },

    stylus: {
      options: {
        use: [
          function() {
            return require('autoprefixer-stylus')('last 10 versions', 'ie 8', 'ie 9');
          }
        ]
      },

      compile: {
        expand: true,
        cwd  : 'assets/stylus/',
        src  : '*.styl',
        dest : 'public/css/',
        ext  : '.css'
      }
    },

    jpgmin: {
      src: ['assets/images/*.jpg', 'assets/images/*.JPG'],
      dest: 'public',
      quality: 75
    },

    pngnq: {
      src: ['assets/images/*.png'],
      dest: 'public'
    },

    watch: {
      stylus: {
        files: 'assets/stylus/**/*.styl',
        tasks: ['stylus:compile']
      },

      phpunit: {
        files: ['app/**/*.php', 'app/**/*.xml'],
        tasks: ['shell:clear', 'shell:runTest', 'shell:phpcs']
      },

      livereload: {
        files: ['app/**/*.php', 'app/views/**/*.twig', 'public/**/*.*', 'public/*.*'],
        options: { livereload: true }
      }
    }

  });

  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-contrib-stylus');
  grunt.loadNpmTasks('grunt-shell');
  grunt.loadNpmTasks('grunt-imagine');

  grunt.registerTask('phpunit', ['watch:phpunit']);
  grunt.registerTask('optimize', ['jpgmin', 'pngnq']);
  grunt.registerTask('default', ['watch']);
}

{
    "name": "",
    "version": "0.1.0",

    "devDependencies": {
        "grunt": "~0.4.5",
        "grunt-contrib-watch": "^0.6.1",
        "grunt-shell": "~0.7.0",
        "grunt-contrib-stylus": "~0.16.0",
        "grunt-imagine": "~0.3.4",
        "autoprefixer-stylus": "~0.1.0"
    }
}