gulp的常用配置

'use strict';
 
 // 载入Gulp模块
 var gulp = require('gulp');
 var less = require('gulp-less');
 var autoprefixer = require('gulp-autoprefixer');//兼容浏览器
 var cssnano = require('gulp-cssnano');
 var browserSync = require('browser-sync');//热刷新服务器
 var reload = browserSync.reload;
 
 // LESS编译 压缩 
 gulp.task('less', function() {
   gulp.src(['src/css/*.less', '!src/css/_*.less'])
     //less中使用@import url('_a.less')
     .pipe(less())
     .pipe(autoprefixer({
       browsers: ['last 2 versions']
     }))
     .pipe(cssnano())
     .pipe(gulp.dest('dist/css'))
     .pipe(reload({
       stream: true
     }));
 });
 
 var concat = require('gulp-concat');
 var uglify = require('gulp-uglify');
 var babel=require('gulp-babel')
 var browserify=require('gulp-browserify')
 
 // JS合并 压缩混淆
 gulp.task('js', function() {
   gulp.src('src/js/*.js')
     .pipe(concat('app.js'))
         .pipe(babel()) //使用es6,加此项
         .pipe(browserify({ //浏览器中兼容require等,使用async时使用
             insertGlobals: true
         }))
     .pipe(uglify())
     .pipe(gulp.dest('dist/js'))
     .pipe(reload({
       stream: true
     }));
 });
 
 // 图片复制
 gulp.task('pic', function() {
   gulp.src('src/pic/*.*')
     .pipe(gulp.dest('dist/pic'))
     .pipe(reload({
       stream: true
     }));
 })
 
 var htmlmin = require('gulp-htmlmin');
 // HTML
 gulp.task('html', function() {
   gulp.src('src/*.html')
     .pipe(htmlmin({
       collapseWhitespace: true,  
       collapseBooleanAttributes: true,
       removeAttributeQuotes: true,
       removeComments: true,
       removeEmptyAttributes: true,
       removeScriptTypeAttributes: true,
       removeStyleLinkTypeAttributes: true,
     }))
     .pipe(gulp.dest('dist'))
     .pipe(reload({
       stream: true
     }));
 });
 
 gulp.task('serve', ['less', 'js', 'pic', 'html'], function() {
   browserSync({
     notify: false,
     port: 3003,
     server: {
       baseDir: ['dist']
     }
   },function (err, bs) {
         console.log(bs.options.getIn(["urls", "local"]));
     });
 
 
   gulp.watch('src/css/*.less', ['less']);
   gulp.watch('src/js/*.js', ['js']);
   gulp.watch('src/pic/*.*', ['pic']);
   gulp.watch('src/*.html', ['html']);
 });
 
 
 gulp.task('default',['serve']);