/*引入gulp及相关插件 require('node_modules里对应模块')*/
var gulp = require('gulp');
var connect=require('gulp-connect');//引入gulp-connect模块 浏览器刷新
var minifyCss = require("gulp-minify-css");
var uglify = require('gulp-uglify');
var concat = require('gulp-concat');

var sass = require('gulp-sass');
sass.compiler = require('node-sass');

gulp.task('connect:app',function(){
  connect.server({
      root:'dist',//根目录
      // ip:'192.168.11.62',//默认localhost:8080
      livereload:true,//自动更新
      port:9998//端口
  })
})

gulp.task('html',function(){//编译html
  return gulp.src('src/tmall.html')
  .pipe(gulp.dest('dist'))
  .pipe(connect.reload());
})

gulp.task('sass', function () {
  return gulp.src('./src/**/*.scss')
    .pipe(sass().on('error', sass.logError))
    .pipe(gulp.dest('./dist'));
});
 
gulp.task('sass:watch', function () {
  gulp.watch('./src/**/*.scss', gulp.series('html','sass'));
});


//压缩
gulp.task('minify-css', function () {
    gulp.src('css/*.css')
        .pipe(minifyCss())
        .pipe(gulp.dest('dist/css/'));
});
//
gulp.task('script', function () {
    gulp.src(['src/a.js',"src/b.js"])
        .pipe(concat('all.js'))
        .pipe(uglify())
        .pipe(gulp.dest('dist/js'));
});
// gulp.task('default',['minify-css','script']);