ui_icons-1.0.x-dev/modules/ui_icons_font/ui_icons_font.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the ui_icons_font module.
 */

/**
 * Implements hook_requirements().
 */
function ui_icons_font_requirements(string $phase): array {
  if ($phase != 'runtime') {
    return [];
  }

  $requirements = [];
  $library_exists = class_exists('\FontLib\Font');
  $requirements['ui_icons_font'] = [
    'title' => t('UI Icons Font'),
    'value' => $library_exists ? t('Font library detected') : t('Missing Font library!'),
    'description' => $library_exists ? '' : t('Install with: composer require dompdf/php-font-lib'),
    'severity' => $library_exists ? REQUIREMENT_OK : REQUIREMENT_WARNING,
  ];

  return $requirements;
}