标签：就是 where ESS roo help span win32 des src
Cli(command-line interface),中文是 命令行界面,简单来说就是可以通过命令行快速生成自己的项目模板等功能(比较熟悉的是vue-cli脚手架这些),把上述写的包做成Cli工具.
延续上一次的代码,这次现在readme.md里面先注释告诉用户又那些命令行的语句具体对应哪些功能
step1:README.md
# anydoor Tiny NodeJS Static Web server ##安装 ``` npm i -g anydoor ``` ##使用方法 ``` anydoor # 把当前文件夹作为静态资源服务器根目录 anydoor -p 3333 # 设置端口号为 3333 //手工自定义一个端口号 anydoor -h localhost # 设置host为localhost anydoor -d /usr # 设置根目录为 /usr ```
Step2:安装yargs
yargs是什么? Yargs是通过解析参数和生成优雅的用户界面，帮助您构建交互式命令行工具。
安装yargs
npm i yargs
新建一个src/index.js,与app.js处于平级目录下,注意下面所定义的option是与defaultConfig的对应的内容
// process.argv1 // yargs const yargs = require(‘yargs‘) const Server = require(‘./app‘) const argv = yargs .usage(‘anywhere [options]‘) .option(‘p‘,{ alias:‘port‘, describe:‘端口号‘, default:9527 }) .option(‘h‘,{ alias:‘hostname‘, describe:‘host‘, default:‘127.0.0.1‘ }) .option(‘d‘,{ alias:‘root‘, describe:‘root path‘, default:process.cwd() }) .version() .alias(‘v‘,‘version‘) .help() .argv; const server = new Server(argv) server.start()
app.js
const http = require(‘http‘); const chalk = require(‘chalk‘) const path = require(‘path‘) const conf = require(‘./config/defaultConfig.js‘); const route = require(‘./helper/route‘) class Server { constructor(config){ this.conf = Object.assign({},conf,config) } start(){ const server = http.createServer((req,res)=>{ const url = req.url; //拿到文件路径 const filePath = path.join(this.conf.root,req.url) route(req,res,filePath,this.conf) }); server.listen(this.conf.port,this.conf.hostname,()=>{ const addr = `http://${this.conf.hostname}:${this.conf.port}`; console.log(`Server started at ${chalk.green(addr)}`); }) } } module.exports = Server
package.json添加main和bin两个选项
{ "devDependencies": { "eslint": "^6.2.2" }, "name":"anydoor", "version":"0.01", "main":"src/app.js", "bin":{ "anydoor":"bin/anydoor" } }
新建anydoor/bin/anydoor
#! /usr/bin/env node
require(‘../src/index‘)
运行代码,成功启动服务,打开http://127.0.0.1:9999可以看到之前运行app.js的页面
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优化自动打开浏览器操作,下面修改之后运行之后会自动打开网页,非常方便
新建src/helper/openUrl.js
const {exec} = require(‘child_process‘)
module.exports = url=>{
switch(process.platform){
case ‘darwin‘:
exec(`open ${url}`);
break
case ‘win32‘:
exec(`start ${url}`);
break
}
}
src/app.js
const http = require(‘http‘); const chalk = require(‘chalk‘) const path = require(‘path‘) const conf = require(‘./config/defaultConfig.js‘); const route = require(‘./helper/route‘) const openUrl = require(‘./helper/openUrl‘) class Server { constructor(config){ this.conf = Object.assign({},conf,config) } start(){ const server = http.createServer((req,res)=>{ const url = req.url; //拿到文件路径 const filePath = path.join(this.conf.root,req.url) route(req,res,filePath,this.conf) }); server.listen(this.conf.port,this.conf.hostname,()=>{ const addr = `http://${this.conf.hostname}:${this.conf.port}`; console.log(`Server started at ${chalk.green(addr)}`); openUrl(addr) }) } } module.exports = Server
标签：就是 where ESS roo help span win32 des src
原文地址：https://www.cnblogs.com/chorkiu/p/11431322.html
