Gruntfile.js

module.exports = function(grunt) {
  "use strict";

  // Project configuration.
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    jshint: {
      all: [
        'Gruntfile.js',
        'annyang.js',
        'sites/facebook.js',
        'sites/geektime.js',
      ],
      options: {
        "node"      : true,
        "browser"   : true,
        "devel"     : false,
        "camelcase" : true,
        "curly"     : true,
        "latedef"   : true,
        "unused"    : true,
        "trailing"  : true,
        "eqeqeq"    : true,
        "eqnull"    : true,
        "evil"      : false,
        "forin"     : true,
        "immed"     : true,
        "laxbreak"  : false,
        "newcap"    : true,
        "noarg"     : true,
        "noempty"   : false,
        "nonew"     : true,
        "onevar"    : false,
        "plusplus"  : false,
        "undef"     : true,
        "sub"       : true,
        "strict"    : true,
        "white"     : false,
        "indent"    : 2
      }
    },
    watch: {
      files: ['annyang.js', 'sites/facebook.js', 'sites/geektime.js', 'demo/css/main.css', '!**/node_modules/**'],
      tasks: ['default'],
    },
    uglify: {
      options: {
        preserveComments: 'some'
      },
      all: {
        files: {
          'annyang.min.js': ['annyang.js'],
          'sites/facebook.min.js': ['annyang.js', 'sites/facebook.js'],
          'sites/geektime.min.js': ['annyang.js', 'sites/geektime.js'],
        }
      }
    },
    imagemin: {
      demoimages: {                       // Target
        options: {                        // Target options
        },
        files: [{
          expand: true,                   // Enable dynamic expansion
          cwd: 'demo/images',             // Src matches are relative to this path
          src: ['*.{png,jpg,gif}'],       // Actual patterns to match
          dest: 'demo/images'             // Destination path prefix
        }]
      },
    },
    cssmin: {
      combine: {
        files: {
          'demo/css/main.min.css': ['demo/css/main.css', 'demo/vendor/css/default.css', 'demo/vendor/css/github.css']
        }
      }
    }
  });

  // Load the plugin that provides the "uglify" task.
  grunt.loadNpmTasks('grunt-contrib-uglify');

  // Load the plugin that provides the "jshint" task.
  grunt.loadNpmTasks('grunt-contrib-jshint');

  // Load the plugin that provides the "watch" task.
  grunt.loadNpmTasks('grunt-contrib-watch');

  // Load the plugin that provides the "cssmin" task.
  grunt.loadNpmTasks('grunt-contrib-cssmin');

  // Load the plugin that provides the "imagemin" task.
  grunt.loadNpmTasks('grunt-contrib-imagemin');

  // Default task(s).
  grunt.registerTask('default', ['jshint', 'uglify', 'cssmin']);

};