gulp构建例子(ubuntu)

1、项目结构和生产之后的目录

2、gulpfile.js

// 载入插件
var gulp = require('gulp'),   //本地安装gulp所用到的地
    sass = require('gulp-sass'), // 处理sass
    less = require('gulp-less'), // 处理less
    autoprefixer = require('gulp-autoprefixer'),  //根据设置浏览器版本自动处理浏览器前缀
    minifycss = require('gulp-minify-css'), //压缩css 减小文件大小，并给引用url添加版本号避免缓存
    rev = require('gulp-rev-append'), //给页面引用url添加版本号，以清除页面缓存
    jshint = require('gulp-jshint'),
    uglify = require('gulp-uglify'), ///压缩javascript文件，减小文件大小
    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'),
    htmlmin = require('gulp-htmlmin'),
    runSequence = require('gulp-run-sequence');

// 样式
gulp.task('scss', function() {
  return gulp.src('src/styles/sass/*.sass')
    .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/sass'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(minifycss())
    .pipe(gulp.dest('dist/styles/sass'))
    .pipe(notify({ message: 'Styles task complete' }));
});

gulp.task('less', function() {
  return gulp.src('src/styles/less/*.less')
    .pipe(less({ 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/less'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(minifycss())
    .pipe(gulp.dest('dist/styles/less'))
    .pipe(notify({ message: ' less Styles task complete' }));
});

gulp.task('css', function() {
  return gulp.src('src/styles/css/*.css')
    .pipe(autoprefixer('last 2 version', 'safari 5', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))
    .pipe(gulp.dest('dist/styles/css'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(minifycss())
    .pipe(gulp.dest('dist/styles/css'))
    .pipe(notify({ message: ' css Styles task complete' }));
});

// 脚本
gulp.task('scripts', function() {
  return gulp.src('src/scripts/**/*.js')
    //.pipe(jshint('.jshintrc'))
   .pipe(jshint.reporter('default'))
   // .pipe(concat('common.js'))    //公共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' }));
});

//html
gulp.task('html', function () {
    var options = {
        removeComments: true,//清除HTML注释
        collapseWhitespace: true,//压缩HTML
        collapseBooleanAttributes: true,//省略布尔属性的值 <input checked="true"/> ==> <input />
        removeEmptyAttributes: true,//删除所有空格作属性值 <input id="" /> ==> <input />
        removeScriptTypeAttributes: true,//删除<script>的type="text/javascript"
        removeStyleLinkTypeAttributes: true,//删除<style>和<link>的type="text/css"
        minifyJS: true,//压缩页面JS
        minifyCSS: true//压缩页面CSS
    };
    gulp.src('src/html/*.html')
        .pipe(htmlmin(options))
        .pipe(rev())
        .pipe(gulp.dest('dist/html'));
});

// 清理
gulp.task('clean', function() {
  return gulp.src(['dist/styles', 'dist/scripts', 'dist/images','dist/html'], {read: false})
    .pipe(clean());
});

// 预设任务
gulp.task('default', ['clean'], function() {
    gulp.start('scss','less','css', 'scripts', 'images','html');
});

gulp.task('prod', function(cb) {
    runSequence('clean',  ['images','less','scss','css','scripts'], 'html',cb);
});

// 看手
gulp.task('watch', function() {

  // 看守所有.scss档
  gulp.watch('src/styles/**/*.scss', ['scss']);

 // 看守所有.less
  gulp.watch('src/styles/**/*.less', ['less']);

 // 看守所有.css
  gulp.watch('src/styles/**/*.css', ['css']);

  // 看守所有.js档
  gulp.watch('src/scripts/**/*.js', ['scripts']);

  // 看守所有图片档
  gulp.watch('src/images/**/*', ['images']);

 // 看守所有图片档
  gulp.watch('src/html/**/*.html', ['html']);

  // 建立即时重整伺服器 为了让这个功能有效，除了伺服器之外，还需要安装并启用LiveReload的浏览器外挂。或者你也可以手动加上这个片段程式码。
  //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);
  //});

});

3、执行gulp 之前先安装上面涉及到的插件：

~ $ cnpm install gulp-ruby-sass gulp-autoprefixer gulp-minify-css gulp-jshint gulp-concat gulp-uglify gulp-imagemin gulp-clean gulp-notify gulp-rename gulp-livereload gulp-cache gulp-run-sequence gulp-less  notify-send --save-dev jshint gulp-jshint

4、执行：gulp 或者gulp prod (这个按顺序执行任务)

5、如果出现：

gulp-notify: [Error in notifier] Error in plugin 'gulp-notify' not found: notify-send

错误

解决办法：

sudo apt-get update
sudo apt-get install libnotify-bin