vorpal 又一个方便的cli 开发包

vorpal 是一个npm 包，我们可以用来开发专业的cli 程序

简单使用

• 初始化项目

yarn init -y

• 添加依赖

yarn add vorpal

• 简单demo

app.js

// const vorpal = require("vorpal")();

​

// vorpal.show()

​

const vorpal = require('vorpal')();

vorpal

  .command('say [words...]')

  .option('-b, --backwards')

  .option('-t, --twice')

  .action(function (args, callback) {

    let str = args.words.join(' ');

    str = (args.options.backwards) ?

      str.split('').reverse().join('') :

      str;

    this.log(str);

    callback();

  })

  vorpal

  .command('sayapp [words...]')

  .action(function (args, cb) {

    this.log(args.words.join(' '));

    cb();

  });

​

vorpal

  .command('reverse [words...]')

  .action(function (args, cb) {

    this.log(args.stdin.split('').reverse().join(''));

    cb();

  });

​

vorpal

  .command('color [color] [text...]')

  .autocomplete(['2018-12-31', '2019-01-03', '2019-03-01'])

  .action(function (args, cb) {

    this.log(args)

    this.log(vorpal.chalk[args.color](args.text.join('')));

    cb();

  });

​

  vorpal

  .command('order pizza')

  .option('--anchovies')

  .action(function (args, cb) {

    const self = this;

    this.prompt({

      type: 'input',

      name: 'time',

      message: 'When would you like your pizza?'

    }, function (result) {

      self.log(`Okay, ${result.time} it is!`);

      cb();

    });

  });

​

  vorpal.delimiter('dalongrong$').

  show()

 

• 运行效果

node app.js

node app.js

dalongrong$

dalongrong$ ls

​

  Invalid Command. Showing Help:

​

  Commands:

​

    help [command...] Provides help for a given command.

    exit Exits application.

    say [options] [words...]

    sayapp [words...]

    reverse [words...]

    color [color] [text...]

    order pizza [options]

​

dalongrong$

 

参考资料

https://github.com/dthree/vorpal
https://developer.telerik.com/featured/creating-node-js-command-line-utilities-improve-workflow/
https://github.com/rongfengliang/vorpal-pkg-demo