先要安装nodejs，初始化项目配置文件package.json，根据情况输入配置参数
npm init
1 test command: 2 git repository: 3 keywords: 4 author: 5 license: (ISC) 6 About to write to E: emp20170429 est03package.json: 7 8 { 9 "name": "test03", 10 "version": "1.0.0", 11 "description": "", 12 "main": "index.js", 13 "scripts": { 14 "test": "echo "Error: no test specified" && exit 1" 15 }, 16 "author": "", 17 "license": "ISC" 18 }
安装gulp
npm install gulp -g (global环境) npm install gulp --save-dev (项目环境)
在项目中install需要的gulp插件，一般只压缩的话需要npm install gulp-minify-css gulp-concat gulp-uglify gulp-rename del --save-dev更多插件可以在这个链接中找到 http://gratimax.net/search-gulp-plugins/
在项目的根目录新建gulpfile.js，require需要的module
var gulp = require('gulp'), uglify = require('gulp-uglify'); gulp.task("default",function() { gulp.src("src/*.js").pipe(uglify()).pipe(gulp.dest("dist/js")); })
执行gulp命令进行js压缩
E: emp20170429 est03>gulp [22:23:05] Using gulpfile E: emp20170429 est03gulpfile.js [22:23:05] Starting 'default'... [22:23:05] Finished 'default' after 13 ms
监控文件修改自动执行任务
1 gulp.task("file_change",function() 2 { 3 gulp.src("src/*.js").pipe(uglify()).pipe(gulp.dest("dist/js")); 4 console.log("uglifyed"); 5 }) 6 7 8 gulp.task("auto",function() 9 { 10 gulp.watch("src/*.js",["file_change"]); 11 })
执行gulp auto，文件修改是自动执行压缩任务
E: emp20170429 est03>gulp auto [23:35:46] Using gulpfile E: emp20170429 est03gulpfile.js [23:35:46] Starting 'auto'... [23:35:46] Finished 'auto' after 13 ms [23:35:51] Starting 'file_change'... uglifyed [23:35:51] Finished 'file_change' after 18 ms [23:35:53] Starting 'file_change'... uglifyed [23:35:53] Finished 'file_change' after 4.75 ms [23:36:04] Starting 'file_change'... uglifyed