ncu.package.js

//https://github.com/tjunnone/npm-check-updates
const ncu = require('npm-check-updates')
const fs = require('fs')

ncu.run({
  packageFile: 'package.json',
  silent: true,
  jsonUpgraded: true,
  jsonAll: true
    // upgrade: true,
    // upgradeAll: true
}).then((upgraded) => {
  console.log('dependencies to upgrade:', upgraded);
  const data = JSON.stringify(upgraded).replace(/,/g, ",\n").replace(/{/, '{\n').replace(/}/, '\n}')
  fs.writeFileSync('upgrade.js', `"UPDATE DATA: ${new Date()}" \n` + data)
});