gulp

参考文档：https://gulpjs.com/
　　　　　https://markpop.github.io/2014/09/17/Gulp%E5%85%A5%E9%97%A8%E6%95%99%E7%A8%8B/
　　　　　http://www.gulpjs.com.cn/docs/api/
　　　　　http://www.cnblogs.com/hutuzhu/p/5276000.html



  1 var gulp = require('gulp');
  2 var clean = require('gulp-clean');
  3 var sass = require('gulp-sass');
  4 var runSequence = require('run-sequence');
  5 var autoprefixer = require('gulp-autoprefixer');
  6 var concat = require('gulp-concat');
  7 var uglify = require('gulp-uglify');
  8 var pump = require('pump')
  9 
 10 
 11 var src = {
 12     sass: [
 13         'src/sass/**/*.sass'        //编译用
 14     ],
 15     css: [
 16         'src/css/**/*.css'          //清除用
 17     ]
 18 };
 19 
 20 var build = {
 21     css: 'src/css',
 22 };
 23 
 24 
 25 function log(msg) {
 26     util.log(util.colors.blue(msg));
 27 }
 28 
 29 // 处理错误
 30 function handleError(err) {
 31     log(err.toString());
 32     this.emit('end');
 33 }
 34 
 35 //---------------------------------------
 36 gulp.task('清除', function () {
 37     return gulp.src(src.css, {
 38         read: false
 39     })
 40         .pipe(clean({
 41             force: true
 42         }));
 43 });
 44 
 45 
 46 gulp.task('监听', function () {
 47     runSequence('清除', ['编译']);
 48     // gulp.watch(src.css, ['监听']);
 49 });
 50 
 51 
 52 //---------------------------------------
 53 
 54 
 55 gulp.task('编译', function () {
 56     return gulp.src(src.sass)
 57         .pipe(sass().on('error', sass.logError))
 58         .pipe(autoprefixer({
 59             browsers: ['iOS >= 7', 'Android >= 4.1']
 60         }))
 61         .pipe(gulp.dest(build.css))
 62 });
 63 
 64 gulp.task('watch', function () {
 65     gulp.watch(src.sass, ['监听']);
 66 
 67 });
 68 
 69 //++++++++++++++++++++++++++++
 70 
 71 gulp.task('scripts', function () {
 72     return gulp.src(['./src/nJs/one.js', './src/nJs/two.js'])
 73         .pipe(concat({path: 'new.js', stat: {mode: 0666}}))
 74         .pipe(gulp.dest('./src/outJs'));
 75 });
 76 
 77 
 78 gulp.task('watch:script', function () {
 79     gulp.watch('./src/nJs/**/*.js', ['scripts']);
 80 
 81 });
 82 
 83 
 84 //----------------------压缩代码---------------------------
 85 
 86 gulp.task('compress', function (cb) {
 87     pump([
 88             gulp.src('./src/nJs/**/*.js'),
 89             uglify(),
 90             gulp.dest('./dist')
 91         ],
 92         cb
 93     );
 94 });
 95 
 96 //------------------------------------------------
 97 
 98 gulp.task('build-1', function () {
 99     runSequence('清除', ['编译']);
100     // gulp.start('build:app', 'build:vendor');
101 });
102 
103 gulp.task('default', function () {
104     runSequence('build-1','scripts',"compress", ['watch','watch:script']);
105 });