@ou-imdt/create/utils/ask.js

Command line tool to create team boilerplate.

const os = require('os')
const fs = require('fs')
const path = require('path')
const { Input, Select, Toggle } = require('enquirer')
const to = require('await-to-js').default
const handleError = require('cli-handle-error')
const shouldCancel = require('cli-should-cancel')
const { Store } = require('data-store')

const nameRegex = /^[a-z0-9\-_.]+$/
const descriptionRegex = /^[^"]+$/

async function textInput ({ name, message, hint, initial }) {
  let history = false
  if (!initial && name !== `name` && name !== `description`) {
    history = {
      autosave: true,
      store: new Store({
        path: path.join(os.homedir(), `.cache/imdt/${name}.json`)
      })
    }
  }
  const [err, response] = await to(
    new Input({
      name,
      message,
      hint,
      initial,
      history,
      validate (value, state) {
        if (!value) {
          if (state.name === 'name' || state.name === 'description')
            return `Please add a ${state.name}.`
        }

        if (state.name === 'name') {
          if (!nameRegex.test(value)) {
            return 'The name can include only lower-case letters (a-z), numbers (0-9), hyphens, underscores, and dots.'
          }
          if (fs.existsSync(value)) {
            return `Directory already exists: ./${value}`
          }
        } else if (state.name === 'description') {
          if (!descriptionRegex.test(value)) {
            return 'The description cannot include double quotes ("). If needed, you can edit the description later in README.'
          }
        }
        return true
      },
      result (value) {
        if (this.name === 'name') {
          return value.replace(/[.\s]+$/, '')
        }
        return value
      }
    })
      .on(`cancel`, () => shouldCancel())
      .run()
  )
  handleError(`INPUT`, err)

  return response
}

async function selectInput ({ name, message, choices, initial }) {
  const [err, response] = await to(
    new Select({
      name,
      message,
      choices,
      initial,
      validate (value) {
        return value ? true : `Select a value.`
      },
      result () {
        return this.focused.value
      }
    })
      .on(`cancel`, () => shouldCancel())
      .run()
  )
  handleError(`SELECT`, err)

  return response
}

async function toggleInput ({ message, enabled, disabled }) {
  const [err, response] = await to(
    new Toggle({
      message,
      enabled,
      disabled
    })
      .on(`cancel`, () => shouldCancel())
      .run()
  )
  handleError(`Toggle`, err)

  return response
}

module.exports = {
  textInput,
  selectInput,
  toggleInput
}