var gulp = require(‘gulp‘);
var replace = require(‘gulp-replace‘);
var htmlmin = require(‘gulp-htmlmin‘);
var browserSync = require(‘browser-sync‘);
var minicss = require(‘gulp-minify-css‘);
var gulpSequence  = require(‘gulp-sequence‘);

gulp.task(‘html‘,function(){
   gulp.src(‘src/index.html‘)
       .pipe(browserSync.reload({stream:true}));   //实时监听
});

gulp.task(‘css‘,function(){
   gulp.src(‘src/css.css‘)
       .pipe(browserSync.reload({stream:true}));   //实时监听
});
/*=================执行serve后自动刷新页面======================*/
gulp.task(‘serve‘,[‘html‘,‘css‘],function(){
   browserSync.init({
      server: ‘src‘
   });
   gulp.watch(‘src/index.html‘,[‘html‘]);
   gulp.watch(‘src/css.css‘,[‘css‘]);
});

/*=====================打包、修改地址==========================*/
gulp.task(‘replace‘,function(){
   gulp.src(‘src/index.html‘)
       .pipe(replace(‘www.firsttest.com‘,‘www.tihuan.com‘))   //替换地址
       .pipe(htmlmin({collapseWhitespace: true}))
       .pipe(gulp.dest(‘dist‘))
});

gulp.task(‘remove‘,function(){
   gulp.src(‘src/css.css‘)
       .pipe(minicss())
       .pipe(gulp.dest(‘dist‘))
});

gulp.task(‘build‘, gulpSequence([‘replace‘,‘remove‘]));