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HomeWeb Front-endJS TutorialHow to create a complete project process using gulp

How to create a complete project process using gulp

Jun 19, 2018 pm 04:39 PM
gulpCreate project

This article mainly introduces a brief discussion of the complete project process of creating gulp. Now I will share it with you and give you a reference.

gulp is a tool for automatically building projects during front-end development. The same function is grunt. The build tool relies on plug-ins to automatically monitor file changes and complete functions such as syntax checking, merging, renaming, compression, formatting, automatic browser refresh, and deployment of files such as js/sass/less/html/image/css/coffee.

All environments are executed based on node installation. node -v Check the installation status of node. npm -v Check the installation status of npm.

Common parameters for gulp automated construction

1. src reads files or folders

2. dest generates files, that is, writes files

3. watch detection file

4. tesk specified task

5.pipe process gulp in a streaming way.

gulp creates a complete project The directory structure is as follows

Explanation:

bower_components This file contains third-party js installed through bower.

build: Project integration directory, usually all code is integrated here without compression.

dist: Project release directory, also after compressing all files.

src: Project source file directory, all source files are placed here.

test: This is for writing automated tests

1. Enter the project root directory in the terminal and install bower.

bower init

Initialize Bower, generate the bower.json file, and then install it Required plug-ins and third-party files such as angular execute

bower install - - save angular

to see how to use bower.

2. Install and view gulp in the project root directory.

Install gulp globally

npm install --global gulp

Then create the configuration file

npm init Initialize and create the package.json file

npm install --save-dev gulp will Node's configuration environment is loaded into the configuration file.

Then install the required plug-ins

npm install xxx —save-dev will automatically write the file into the configuration file.

These are commonly used to create the entire site. If there are multiple plug-ins, you can separate the plug-ins in the form of spaces

npm install gulp-clean gulp-concat gulp-connect gulp-cssmin gulp-imagemin gulp-less gulp-load-plugins gulp-uglify open  -—save-dev

Then there is the writing of the gulpfile.js configuration file. Specifically, the following

//引入gulp
var gulp = require('gulp');
//这样的话 其他的模块可以直接使用 $ 符号来引入
var $ = require('gulp-load-plugins')();
var open = require('open');

//定义目录路径
var app = {
 //源代码,文件目录
 srcPath: 'src/',
 //文件整合之后的目录
 devPath: 'build/',
 //项目,发布目录上产部署
 prdPath: 'dist/'
};

//通过bower安装的插件,需要拷贝到 devPath prdPath中
gulp.task('lib',function(){
 // /**/* 读取这个文件夹下边的所有的文件或者文件夹
 gulp.src('bower_components/**/*')
 //读取完整后进行操作 西安拷贝到整合目录 并重命名,在拷贝到生产目录并重命名
 .pipe(gulp.dest(app.devPath + 'vendor'))
 .pipe(gulp.dest(app.prdPath + 'vendor'))
 .pipe($.connect.reload()); //文件更改后自动变异 并执行启动服务重新打开浏览器
});
//将 html 拷贝到 devPath prdPath中
gulp.task('html',function(){
 gulp.src(app.srcPath + '**/*.html')
 .pipe(gulp.dest(app.devPath))
 .pipe(gulp.dest(app.prdPath))
 .pipe($.connect.reload());
});
//将 模拟的json 文件 拷贝到 devPath prdPath中
gulp.task('json',function(){
 gulp.src(app.srcPath + 'data/**/*.json')
 .pipe(gulp.dest(app.devPath + 'data'))
 .pipe(gulp.dest(app.prdPath + 'data'))
 .pipe($.connect.reload());
});

//将 index.less 文件 拷贝到 devPath prdPath中,index.less引入了所有的其他的less
gulp.task('less',function(){
 gulp.src(app.srcPath + 'style/index.less')
 .pipe($.less())
 .pipe(gulp.dest(app.devPath + 'css'))
 .pipe($.cssmin())
 .pipe(gulp.dest(app.prdPath + 'css'))
 .pipe($.connect.reload());
});
// 拷贝 js 文件 将所有的源文件中的js 文件整合成index.js 然后拷贝过去
gulp.task('script',function(){
 gulp.src(app.srcPath + 'script/**/*.js')
 .pipe($.concat('index.js'))
 .pipe(gulp.dest(app.devPath + 'js'))
 .pipe($.uglify())
 .pipe(gulp.dest(app.prdPath + 'js'))
 .pipe($.connect.reload());
});

//拷贝 压缩 图片 最后放到发布目录下
gulp.task('image',function(){
 gulp.src(app.srcPath + 'image/**/*')
 //江源图片放到整合目录下,在压缩放到生产目录下
 .pipe(gulp.dest(app.devPath + 'image'))
 .pipe($.imagemin())
 .pipe(gulp.dest(app.prdPath + 'image'))
 .pipe($.connect.reload());
});

//总的方法
gulp.task('build',['image', 'script', 'less', 'json', 'html', 'lib']);

//清除旧文件,每次更新的时候
gulp.task('clean',function(){
 gulp.src([app.devPath,app.prdPath])
 .pipe($.clean());
})

//编写服务
gulp.task('serve',['build'], function() {
 $.connect.server({
  //服务起来的入口
  root: [app.devPath],
  //文件更改后自动刷新页面
  livereload: true,
  //端口号
  port: 1234
 });
 // 在 命令工具中执行 gulp serve 就相当于是启动了服务
 //自动打开浏览器
 open('http://localhost:1234');
 //我们希望更改了文件,就自动编译,并且打包等然后打开浏览器
 gulp.watch('bower_components/**/*' , ['lib']);
 //监听 script 下边的 js 文件,并执行 script 方法
 gulp.watch(app.srcPath + 'script/**/*.js', ['script']);
 gulp.watch(app.srcPath + '**/*.html', ['html']);
 gulp.watch(app.srcPath + 'data/**/*.json', ['json']);
 gulp.watch(app.srcPath + 'style/**/*.less', ['less']);
 gulp.watch(app.srcPath + 'image/**/*', ['image']);
 //这样文件变更了就会自动构建
});
//默认执行的任务,直接 执行 gulp 变行了。都编写完成后再终端 执行 gulp 便可以了。
gulp.task('default', ['serve']);

Using gulp to create a complete project process is completed

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

Related articles:

Solution to the Bootstrap modal box submission BUG

Detailed interpretation of the entry function run in webpack

How to implement entry/leave animation in Vue

Detailed introduction to routing and middleware in node.js

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