function checkNodeVersion()

in packages/create-react-app/createReactApp.js [790:819]

• 27 lines of code
• 5 McCabe index (conditional complexity)

function checkNodeVersion(packageName) {
  const packageJsonPath = path.resolve(
    process.cwd(),
    'node_modules',
    packageName,
    'package.json'
  );

  if (!fs.existsSync(packageJsonPath)) {
    return;
  }

  const packageJson = require(packageJsonPath);
  if (!packageJson.engines || !packageJson.engines.node) {
    return;
  }

  if (!semver.satisfies(process.version, packageJson.engines.node)) {
    console.error(
      chalk.red(
        'You are running Node %s.\n' +
          'Create React App requires Node %s or higher. \n' +
          'Please update your version of Node.'
      ),
      process.version,
      packageJson.engines.node
    );
    process.exit(1);
  }
}