gulp4.0配置

 





var gulp = require('gulp');





var rename = require('gulp-rename');//重命名





var uglify=require('gulp-uglify');//js压缩





var watch=require('gulp-watch');//监视





var less=require('gulp-less');//编译less





var minifyCss = require("gulp-minify-css");//压缩CSS





var minifyHtml = require("gulp-minify-html");//压缩html





var jshint = require("gulp-jshint");//js检查





var imagemin = require('gulp-imagemin');





var pngquant = require('imagemin-pngquant'); //png图片压缩插件





var connect=require('gulp-connect');//引入gulp-connect模块 





// gulp.task('min', function () {





//     gulp.src('copyUrl/js/resize.js') // 要压缩的js文件





//     .pipe(uglify()) //使用uglify进行压缩,更多配置请参考：





//     .pipe(rename('resize.min.js'))





//     .pipe(gulp.dest('dist/fot')); //压缩后的路径





// });





 





gulp.task('watchs',function(){





    gulp.watch('cug_vatti_Backpass/*.html',gulp.series('html'));





    gulp.watch('cug_vatti_Backpass/css/*.less',gulp.series('css'));





    gulp.watch('cug_vatti_Backpass/js/*.js',gulp.series('js'));





})





gulp.task('connect',function(){





    connect.server({





        root:'cug_vatti_Backpass',//根目录





        // ip:'192.168.11.62',//默认localhost:8080





        livereload:true,//自动更新





        port:9909//端口





    })





})





 





gulp.task('html',function(){





    return gulp.src('cug_vatti_Backpass/*.html')





    .pipe(gulp.dest('dist/html'))





    .pipe(connect.reload());





})





 





gulp.task('css',function(){





    return gulp.src('cug_vatti_Backpass/css/*.less')





    .pipe(less())//编译less





    .pipe(gulp.dest('cug_vatti_Backpass/css')) //当前对应css文件





    .pipe(connect.reload());//更新





})





 





gulp.task('js',function(){





    return gulp.src('cug_vatti_Backpass/js/jquery-1.8.0.min.js')





    .pipe(jshint())//检查代码





    .pipe(uglify())//压缩js





    .pipe(gulp.dest('dist/js'))





    .pipe(connect.reload());





})





 //gulp.series|4.0 依赖





 //gulp.parallel|4.0 多个依赖嵌套





gulp.task('default',gulp.series(gulp.parallel('connect','watchs','html','css','js')));