grunt

作者: 奶瓶SAMA | 来源:发表于2017-03-14 11:51 被阅读0次

    npm install -g grunt-cli //全局安装grunt
    npm init -y //初始化package.json
    npm install grunt --save-dev //在项目中安装grunt
    grunt --help //查看更多信息
    grunt 安装完毕

    新建Gruntfile.js
    随便举得例子1:

    module.exports= function (grunt) {
        grunt.registerTask('default', function () {
            console.log('aaaaaaaa');
            //grunt.log.writeln('aaaaaaaa');
            //函数中可以传递参数
        })
    };
    

    随便举的例子2:
    执行多任务

    module.exports= function (grunt) {
        grunt.registerTask('a', function (name) {
            grunt.log.writeln('hello'+name);
        });
        grunt.registerTask('b', function () {
            grunt.log.writeln('hello2')
        });
        grunt.registerTask('c', function () {
            grunt.log.writeln('hello3')
        });
        grunt.registerTask('default',['a','b','c']);
    };
    

    我们可以初始化一些数据,这些数据可以用到不同的任务里面

    module.exports= function (grunt) {
        grunt.initConfig({
            a:{
                english:'hello'
            }
        });
        grunt.registerTask('a', function (name) {
            grunt.log.writeln(grunt.config.get('a.english'));
        });
    };
    

    多个任务执行

    module.exports= function (grunt) {
        grunt.initConfig({
            a:{
                english:'hello',
                spanlish:'hello2'
            }
        });
        grunt.registerMultiTask('a', function (name) {
            grunt.log.writeln(this.target+':'+this.data);
        });
    };
    

    以下是插件的一部分功能
    复制文件
    npm install grunt-contrib-copy --save-dev

    grunt.loadNpmTasks('grunt-contrib-copy');
        grunt.initConfig({
            copy:{
                html:{
                    src:'index.html',
                    dest:'dist/'
                }
            }
        });
    

    监听文件
    npm install grunt-contrib-watch --save-dev

    grunt.loadNpmTasks('grunt-contrib-watch');
            watch:{
                html:{
                    files:['index.html'],
                    tasks:['copy:html']
                }
            }
    

    放到服务器上
    npm install grunt-contrib-connect --save-dev

     connect:{
                server:{
                   port:8080,
                   base:'dist/'
                }
     }
    

    grunt connect:server:keepalive一直保持状态

    自动刷新浏览器
    npm install grunt-contrib-livereload --save-dev
    在connect中添加:livereload:true
    在watch中添加:livereload:true

    编译sass
    npm install grunt-contrib-sass --save-dev

            sass:{
                mysass:{
                    src:'css/a.scss',
                    dest:'dist/scss/a.css'
                }
            }
    

    编译less
    npm install grunt-contrib-less --save-dev

            less:{
                myless:{
                    src:'css/b.less',
                    dest:'dist/less/b.css'
                }
            }
    
    npm install grunt-contrib-concat --save-dev //安装合并插件
    
    npm install grunt-contrib-uglify --save-dev //安装js压缩插件
    

    js压缩合并

            concat:{
                myconcat:{
                    src:'js/*.js',
                    dest:'dist/hebing/a.hebing.js'
                }
            },
            uglify:{
                myuglify:{
                    src:'dist/hebing/a.hebing.js',
                    dest:'dist/yasuohebing/b.min.js'
                }
            }
    
    npm install grunt-contrib-cssmin --save-dev//安装css压缩
    
    npm install grunt-contrib-htmlmin --save-dev//安装html压缩
    htmlmin:{
                options:{
                    removeComments: true,
                    removeCommentsFromCDATA: true,
                    collapseWhitespace: true,
                    collapseBooleanAttributes: true,
                    removeAttributeQuotes: true,
                    removeRedundantAttributes: true,
                    useShortDoctype: true,
                    removeEmptyAttributes: true,
                    removeOptionalTags: true
                },
                myminhtml:{
                    src:'index.html',
                    dest:'dist/html/'
                }
            }
    
    npm install grunt-contrib-imagemin --save-dev//优化img  
    imagemin:{
                myimage:{
                    expand:true,
                    src:'img/*',
                    dest:'dist/'
                }
            }
    
    文件头部加一段注释性语言配置banner信息
     options: {      banner: '/*! 注释信息 */'    }
    

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