function validateOptions()

in scripts/jest/jest-cli.js [126:251]
109 lines of code
30 McCabe index (conditional complexity)

function validateOptions() {
  let success = true;

  if (argv.project === 'devtools') {
    if (argv.prod) {
      logError(
        'DevTool tests do not support --prod. Remove this option to continue.'
      );
      success = false;
    }

    if (argv.dev) {
      logError(
        'DevTool tests do not support --dev. Remove this option to continue.'
      );
      success = false;
    }

    if (argv.env) {
      logError(
        'DevTool tests do not support --env. Remove this option to continue.'
      );
      success = false;
    }

    if (argv.persistent) {
      logError(
        'DevTool tests do not support --persistent. Remove this option to continue.'
      );
      success = false;
    }

    if (argv.variant) {
      logError(
        'DevTool tests do not support --variant. Remove this option to continue.'
      );
      success = false;
    }

    if (!argv.build) {
      logError('DevTool tests require --build.');
      success = false;
    }
  } else {
    if (argv.compactConsole) {
      logError('Only DevTool tests support compactConsole flag.');
      success = false;
    }
  }

  if (isWWWConfig()) {
    if (argv.variant === undefined) {
      // Turn internal experiments on by default
      argv.variant = true;
    }
  } else {
    if (argv.variant) {
      logError(
        'Variant is only supported for the www release channels. Update these options to continue.'
      );
      success = false;
    }
  }

  if (argv.build && argv.persistent) {
    logError(
      'Persistence is not supported for build targets. Update these options to continue.'
    );
    success = false;
  }

  if (!isOSSConfig() && argv.persistent) {
    logError(
      'Persistence only supported for oss release channels. Update these options to continue.'
    );
    success = false;
  }

  if (argv.build && isWWWConfig()) {
    logError(
      'Build targets are only not supported for www release channels. Update these options to continue.'
    );
    success = false;
  }

  if (argv.env && argv.env !== 'production' && argv.prod) {
    logError(
      'Build type does not match --prod. Update these options to continue.'
    );
    success = false;
  }

  if (argv.env && argv.env !== 'development' && argv.dev) {
    logError(
      'Build type does not match --dev. Update these options to continue.'
    );
    success = false;
  }

  if (argv.prod && argv.dev) {
    logError(
      'Cannot supply both --prod and --dev. Remove one of these options to continue.'
    );
    success = false;
  }

  if (argv.build) {
    // TODO: We could build this if it hasn't been built yet.
    const buildDir = path.resolve('./build');
    if (!fs.existsSync(buildDir)) {
      logError(
        'Build directory does not exist, please run `yarn build-combined` or remove the --build option.'
      );
      success = false;
    } else if (Date.now() - fs.statSync(buildDir).mtimeMs > 1000 * 60 * 15) {
      logError(
        'Warning: Running a build test with a build directory older than 15 minutes.\nPlease remember to run `yarn build` when using --build.'
      );
    }
  }

  if (!success) {
    console.log(''); // Extra newline.
    process.exit(1);
  }
}