Some useful CLI snippets

cli-snips.ts

// CHALK - coloring out put
import chalk from 'chalk'
console.log(chalk.redBright('Hello from chalk'))

// YARGS - parse argv
import yargs from 'yargs-parser'
const argv = yargs(process.argv.slice(2))

console.log(argv)

// EXECA - execute commands
import { execa } from 'execa'
execa('echo', ['hello']).then(m => console.log(m.stdout))

// ORA - spinners
import ora from 'ora'

function loading(title: string, list: string) {
  const spinner = ora(`Loading ${title} from ${list}`)
  spinner.color = 'yellow'

  spinner.start()

  setTimeout(() => {
    spinner.succeed()
  }, 3000)
}

// INQUIRER - prompts all the prompts
import inquirer from 'inquirer'

inquirer
  .prompt([
    {
      type: 'list',
      name: 'list',
      choices: ['one', 'two', 'there'],
    },
    {
      type: 'input',
      name: 'title',
      message: 'title',
    },
  ])
  .then(({ list, title }: { list: string; title: string }) => {
    // ORA see above
    loading(title, list)
  })

package.json

{
  "name": "yags",
  "main": "index.js",
  "type": "module",
  "dependencies": {
    "chalk": "^5.0.0",
    "execa": "^6.0.0",
    "inquirer": "^8.2.0",
    "ora": "^6.0.1",
    "yargs-parser": "^21.0.0"
  },
  "devDependencies": {
    "@types/inquirer": "^8.1.3",
    "@types/node": "^16.11.12",
    "@types/yargs-parser": "^20.2.1"
  }
}