var gulp = require('gulp'); var uglify = require('gulp-uglify'); var rename = require('gulp-rename'); gulp.task('compress',function(){ return gulp.src('script/*.js') .pipe(uglify()) .pipe(rename('jquery.ui.min.js')) .pipe(gulp.dest('dist')); });
该命令会安装package.json下的全部依赖，如下图所示：
完整的gulpfile.js
// 载入外挂 var gulp = require('gulp'), sass = require('gulp-ruby-sass'), autoprefixer = require('gulp-autoprefixer'), minifycss = require('gulp-minify-css'), jshint = require('gulp-jshint'), uglify = require('gulp-uglify'), imagemin = require('gulp-imagemin'), rename = require('gulp-rename'), clean = require('gulp-clean'), concat = require('gulp-concat'), notify = require('gulp-notify'), cache = require('gulp-cache'), livereload = require('gulp-livereload'); // 样式 gulp.task('styles', function() { return gulp.src('src/styles/main.scss') .pipe(sass({ style: 'expanded', })) .pipe(autoprefixer('last 2 version', 'safari 5', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4')) .pipe(gulp.dest('dist/styles')) .pipe(rename({ suffix: '.min' })) .pipe(minifycss()) .pipe(gulp.dest('dist/styles')) .pipe(notify({ message: 'Styles task complete' })); }); // 脚本 gulp.task('scripts', function() { return gulp.src('src/scripts/**/*.js') .pipe(jshint('.jshintrc')) .pipe(jshint.reporter('default')) .pipe(concat('main.js')) .pipe(gulp.dest('dist/scripts')) .pipe(rename({ suffix: '.min' })) .pipe(uglify()) .pipe(gulp.dest('dist/scripts')) .pipe(notify({ message: 'Scripts task complete' })); }); // 图片 gulp.task('images', function() { return gulp.src('src/images/**/*') .pipe(cache(imagemin({ optimizationLevel: 3, progressive: true, interlaced: true }))) .pipe(gulp.dest('dist/images')) .pipe(notify({ message: 'Images task complete' })); }); // 清理 gulp.task('clean', function() { return gulp.src(['dist/styles', 'dist/scripts', 'dist/images'], {read: false}) .pipe(clean()); }); // 预设任务 gulp.task('default', ['clean'], function() { gulp.start('styles', 'scripts', 'images'); }); // 看守 gulp.task('watch', function() { // 看守所有.scss档 gulp.watch('src/styles/**/*.scss', ['styles']); // 看守所有.js档 gulp.watch('src/scripts/**/*.js', ['scripts']); // 看守所有图片档 gulp.watch('src/images/**/*', ['images']); // 建立即时重整伺服器 var server = livereload(); // 看守所有位在 dist/ 目录下的档案，一旦有更动，便进行重整 gulp.watch(['dist/**']).on('change', function(file) { server.changed(file.path); }); });
注：pipe()是stream模块里传递数据流的一个方法，第一个参数为插件方法，插件会接收从上游流下的文件，进行处理加工后，再往下流。
gulp.task('任务名称', function () { return gulp.src('文件路径') .pipe(...) .pipe(...) // 直到任务的最后一步 .pipe(...); });
gulp插件
gulp-gh-pages：使用gulp来把markdown生成html文档并上传到git pages上
https://github.com/shinnn/gulp-gh-pages
var gulp = require('gulp'); var ghPages = require('gulp-gh-pages'); gulp.task('deploy', function() { return gulp.src('./dist/**/*') .pipe(ghPages()); });
gulp-jade插件：将jade编译成html文件
gulp-less插件：将less编译成css文件
var less = require('gulp-less'); var path = require('path'); gulp.task('less', function () { return gulp.src('./less/**/*.less') .pipe(less({ paths: [ path.join(__dirname, 'less', 'includes') ] })) .pipe(gulp.dest('./public/css')); }); gulp-live-server 插件：方便的，轻量级的服务器 var gulp = require('gulp'); var gls = require('gulp-live-server'); gulp.task('serve', function() { //1. serve with default settings var server = gls.static(); //equals to gls.static('public', 3000); server.start(); //2. serve at custom port var server = gls.static('dist', 8888); server.start(); //3. serve multi folders var server = gls.static(['dist', '.tmp']); server.start(); //use gulp.watch to trigger server actions(notify, start or stop) gulp.watch(['static/**/*.css', 'static/**/*.html'], function (file) { server.notify.apply(server, [file]); }); });
gulp-livereload，可以实时保存刷新，那样就不用按F5和切换界面了
gulp-load-plugins：在你的package.json文件中自动加载任意的gulp插件
$ npm install --save-dev gulp-load-plugins
例如一个给定的package.json文件如下：
{ "dependencies": { "gulp-jshint": "*", "gulp-concat": "*" } }
在gulpfile.js中添加如下代码：