使用 commander && inquirer 构建专业的node cli

备注：

  比较简单就是使用nodejs 的两个类库帮助我们进行开发而已，具体的使用参考类库文档

1. 项目初始化

a. 安装依赖
yarn init -y
yarn add commander  inquirer 

├── README.md
├── bin
│   └── index.js
├── package.json
└── yarn.lock

2. 项目代码

a. package.json

{
  "name": "mynode-cli",
  "version": "1.0.2",
  "main": "bin/index.js",
  "license": "MIT",
  "dependencies": {
    "commander": "^2.12.2",
    "inquirer": "^4.0.2"
  },
  "bin": {
    "mynode-cli":"bin/index.js"
  },
  "scripts": {
    "publish":"npm publish",
    "run-local":"node bin/index"
  }
}

b. bin/index.js

备注：主要操作
#!/usr/bin/env node

const Program = require("commander");
const Prompt = require("inquirer");
const initQuestions = [{
    type: 'list',
    name: 'plattype',
    message: '请选择平台类型?',
    choices: [
        'pass',
        'sass',
        'iaas'
    ]
},
{
    type: 'list',
    name: 'vmCounts',
    message: '请选择您包含的虚拟机数量?',
    choices: ['100', '200', '500', '1000']
}
];
const loginQuestions = [{
    type: 'input',
    name: 'username',
    message: '请输入用户名',
},
{
    type: 'password',
    name: 'password',
    message: '请输入用户密码'
}
];

Program
    .version("0.1.0")
    .description("系统平台初始化工具")
    .option("-i, --init","平台初始化")

Program
    .command("init")
    .alias("i")
    .description("初始化平台")
    .action(() => {
        Prompt.prompt(initQuestions).then(result => {
            console.log("您选择的平台类型信息如下：");
            console.log(JSON.stringify(result));
        })
    });
    Program
    .command("login")
    .alias("l")
    .description("登陆平台")
    .action(() => {
        Prompt.prompt(loginQuestions).then(result => {
            console.log("您登陆的账户信息如下：");
            console.log(JSON.stringify(result));
        })
    })
Program.parse(process.argv);

3. 使用

a. 安装
npm install -g mynode-cli
b. 使用
mynode-cli  -i init
mynode-cli -i login
mynode-cli -h
参考界面如下：

 

 

 

4. 总结

还是比较简单的，同时有一个npm 包create-new-cli也是一个不错的选择

5.参考资料

https://www.npmjs.com/package/commander
https://www.npmjs.com/package/inquirer
https://github.com/rongfengliang/mynode-cli