check-node-version.js

import fs from 'fs/promises'
import semver from 'semver'
import path from 'path'

const packageFile = JSON.parse(await fs.readFile(path.join(process.cwd(), './package.json')))
const { engines } = packageFile

/* istanbul ignore next */
if (!semver.satisfies(process.version, engines.node)) {
  console.error(
    `\n\nYou're using Node.js ${process.version.replace(/^v/, '')} but this project requires ${
      engines.node
    }`
  )
  console.error('Visit nodejs.org to download an installer that meets these requirements.\n\n')
  process.exit(1)
}