yargs sample to create command like `npm create-react-app appName

yargs.sample.js

#!/usr/bin/env node
import path from 'path'
import yargs from 'yargs/yargs'
import fs from 'fs/promises'
import figlet from 'figlet'
import chalk from 'chalk'
import init from './command-init'
import packageJSON from '../package.json'
import { setLevel, Level } from 'utils/logger'
import { GlobalOptions } from 'command-init/types'

async function generateBrand() {
  return new Promise((resolve, reject) => {
    figlet(packageJSON.displayName || packageJSON.name, (err, data) => {
      if (err) {
        reject(err)
      }
      resolve(data)
    })
  })
}

const bin = 'create-horizon-app'

yargs(process.argv.slice(2))
  .command('$0', '<project-directory> [options]', {}, async (argv) => {
    const projectDir = process.argv[2]

    if (!projectDir) {
      console.log(
        `Please specify the project directory:\n`,
        `  ${chalk.hex('#229bff').bold(bin)} ${chalk.green(
          '<project-directory>'
        )}\n\n`,
        `For example:\n`,
        `  ${chalk.hex('#229bff').bold(bin)} ${chalk.green(
          'my-horizon-app'
        )}\n`,
        `Run ${chalk.hex('#229bff').bold(bin + ' --help')} to see all options.`
      )
      return
    }

    if (argv.verbose) {
      setLevel(Level.verbose)
    }
    const brand = await generateBrand()
    console.log(brand)
    const head = await fs.readFile(
      path.join(__dirname, '../head-of-init'),
      'utf-8'
    )
    console.log(chalk.blue(head))

    await fs.mkdir(projectDir)
    process.chdir(projectDir)
    init({ verbose: argv.verbose, beta: argv.beta } as GlobalOptions)
  })
  .option('verbose', {
    type: 'boolean',
    description: 'Run with verbose logging',
  })
  .option('beta', {
    type: 'boolean',
    description: `Try new features, including realtime create-react-app`,
  })
  .demandCommand()
  .help().argv