如何使用 grunt 将我所有的 .js 文件编译成一个缩小的文件?

How do I compile all my .js files into one minified file using grunt?

我是 grunt 的新手,我需要一些帮助来设置它。我想使用 SASS、Compass 并将我所有的 .js 文件编译成一个缩小的文件。

我正在使用的站点目前没有使用 grunt,我想对其进行设置以使用它。我所有的 .js 文件都包含在页面底部。我需要做些什么来更改它,以便只有一个缩小的 .js 文件包含所有 .js 文件?

在我的索引页面底部,我包含了 .js 文件,如下所示:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.min.js"></script>    
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular-route.min.js"></script> 
<script src="//code.angularjs.org/1.3.4/angular-sanitize.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<script src="bower_components/angular-bootstrap/ui-bootstrap.min.js"></script>
<script src="bower_components/angular-bootstrap/ui-bootstrap-tpls.min.js"></script>
<script src="bower_components/angular-loading-bar/src/loading-bar.js"></script>
<script src="bower_components/angular-promise-tracker/promise-tracker.js"></script>
<script src="bower_components/angular-promise-tracker/promise-tracker-http-interceptor.js"></script>
<script src="js/config.json" type="application/json"></script>
<script src="js/infinite-scroll.js"></script>
<script src="js/hotels.js"></script>
<script src="js/weather.js"></script>
<script src="js/main.js"></script>

我的 Gruntfile.js 看起来像这样:

module.exports = function(grunt) {
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),

        minified : {
          files: {
            src: [
              '/js/src/**/*.js',                
              '/js/src/*.js'
            ],
            dest: '/js/min/'
          }
        },      

        compass: {
            dist: {
                options: {
                    sassDir: 'sass',
                    cssDir: 'css'
                }
            }
        },

        watch: {
            css: {
                files: '**/*.scss',
                tasks: ['compass']
            }
        }
    });
    grunt.loadNpmTasks('grunt-contrib-compass');
    grunt.loadNpmTasks('grunt-contrib-watch');
    grunt.loadNpmTasks('grunt-minified');
    grunt.registerTask('default',['watch']);
}

我的 package.json 看起来像这样:

{
  "name": "hoteldemo",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "test"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "grunt": "^0.4.5",
    "grunt-contrib-compass": "^1.0.3",
    "grunt-contrib-sass": "^0.9.2",
    "grunt-contrib-watch": "^0.6.1"
  }
}

您可能想要使用 grunt-usemin. It may even be worth your time to explore some of the generators provided by Yeoman 之类的东西,因为这些通常会根据您使用的技术为您提供适当的 grunt 脚手架。

在您的项目中单独使用 grunt-usemin 看起来像这样:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.min.js"></script>    
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular-route.min.js"></script> 
<script src="//code.angularjs.org/1.3.4/angular-sanitize.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>


<!-- build:js js/min/app.min.js -->
<script src="bower_components/angular-bootstrap/ui-bootstrap.min.js"></script>
<script src="bower_components/angular-bootstrap/ui-bootstrap-tpls.min.js"></script>
<script src="bower_components/angular-loading-bar/src/loading-bar.js"></script>
<script src="bower_components/angular-promise-tracker/promise-tracker.js"></script>
<script src="bower_components/angular-promise-tracker/promise-tracker-http-interceptor.js"></script>
<script src="js/config.json" type="application/json"></script>
<script src="js/infinite-scroll.js"></script>
<script src="js/hotels.js"></script>
<script src="js/weather.js"></script>
<script src="js/main.js"></script>
<!-- endbuild -->

您必须配置一个 grunt 任务来为您执行构建,这将非常特定于您的设置。只需跟随 grunt-usemin documentation.