numen CLI

NUMEN CLI will help you easily and simply create your own cli library using typescript. Based on the @gruzf/numen

• Install
• Usage
  • ./index.ts
    • Options
      • checkVersion
  • ./commands/commandName1.ts
    • Options
      • description
      • args
      • options
      • isDefault
  • Compiling
  • Run node lib

Install

npm install @gruzf/numen-cli

or

yarn add @gruzf/numen-cli

Usage

First of all, prepare your project structure

.
├── commands
│   ├── commandName1.ts
│   ├── commandName2.ts
│   ├── commandName3.ts
│   └── ...
└── index.ts

./index.ts

#!/usr/bin/env node

import { cli } from "@gruzf/numen-cli";

cli(options);

Options

checkVersion

Show a message about an available new version

• Type: boolean
• Default: false

./commands/commandName1.ts

import Command from "@gruzf/numen-cli/command";

export default class CommandName1 extends Command {
  description = "My first command";

  args = [{ name: "name", required: true }];

  options = [{ flag: "-l, --lastName <lastName>" }];

  run(name: string, { lastName }?: { lastName: string }): void {
    console.log(`Hello ${name}!`);

    return;
  }
}

Options

description

• Type: string
• Default: undefined

args

• Type: [{ name: string; description: string; required: boolean }]
• Default: undefined

options

• Type: [{ flag: string; description: string; defaultValue: string | boolean; choices?: string[] }]
• Default: undefined

isDefault

• Type: boolean
• Default: false

Don't forget about the bin property in the package.json file. When you publish your library you will be able to call it via myLib

{
  "name": "my-lib",
  "version": "1.0.0",
  "main": "./index.js",
  "bin": {
    "myLib": "./index.js"
  }
}

Compiling

Compile your code with numen

numen watch

Run node lib

After publishing just myLib

node lib

Usage: mylib [options] [command]

Options:
  -v, --version        output the version number
  -h, --help           display help for command

Commands:
  commandName1 <name>  My first command
  help [command]       display help for command

node lib commandName1 World

Hello World!