@sap/cds-dk/lib/util/question.js

Command line client and development toolkit for the SAP Cloud Application Programming Model

const readline = require('node:readline')

async function ask4(...args) {

  // If not in interactive mode, read all input at once.
  if (!process.stdin.isTTY) {
    const data = await new Promise(resolve => {
      let result = ''
      process.stdin.on('data', chunk => result += chunk)
      process.stdin.on('end', () => resolve(result))
    })
    return data.split(/\r?\n/).slice(0, args.length)
  }

  const answers = []
  const rl = readline.createInterface({ input: process.stdin, output: process.stdout })

  const askQuestion = question =>
    new Promise(resolve => rl.question(question, answer => {
      answers.push(answer)
      resolve()
    }))

  for (const question of args) {
    await askQuestion(question)
  }
  rl.close()
  return answers
}

module.exports = { ask4 }