This script can run on a preinstall hook to validate engine versions.

check-versions.js

#!/usr/bin/env node

const { execSync } = require('child_process');
const { clean, satisfies } = require('semver');
const { green, red, yellow } = require('chalk');
const { engines } = require('../package.json');

const exec = cmd => execSync(cmd).toString().trim();

const getEngineRequirement = name => ({
    name,
    currentVersion: name === 'node' ? clean(process.version) : exec(`${name} --version`),
    versionRequirement: engines[name],
});

const getVersionRequirements = engine => engine
    ? getEngineRequirement(engine)
    : Object.keys(engines).map(getEngineRequirement);

const getRequirementWarnings = (requirements = getVersionRequirements()) => requirements
    .filter(({ currentVersion: a, versionRequirement: b }) => !satisfies(a, b))
    .map(({ currentVersion, name, versionRequirement }) =>
        `${name}: ${red(currentVersion)} should be ${green(versionRequirement)}`);

const logMessage = (warnings = []) => {
    let msg = '';
    let title = 'All Engines are Compatible';
    let shouldExit = false;

    if (warnings.length) {
        shouldExit = true;
        title = 'Detected Incompatible Engines:';
        warnings.forEach(warning => {
            msg += '\n\t' + warning;
        });
    }

    // eslint-disable-next-line no-console
    console.log(`
        ${yellow(title)} ${msg}
    `);

    if (shouldExit) {
        process.exit(1);
    }
};

const checkVersions = engine => logMessage(getRequirementWarnings(getVersionRequirements(engine)));

module.exports = checkVersions;

checkVersions();