template_preprocess_system_modules_details

template_preprocess_system_modules_details(&$variables)

function template_preprocess_system_modules_details(&$variables) {
  $form = $variables['form'];

  $variables['modules'] = [];
  // Iterate through all the modules, which are children of this element.
  foreach (Element::children($form) as $key) {
    // Stick the key into $module for easier access.
    $module = $form[$key];
    unset($module['enable']['#title']);
    $module['#requires'] = array_filter($module['#requires']);
    $module['#required_by'] = array_filter($module['#required_by']);
    // Add the checkbox to allow installing new modules and to show the
    // installation status of the module.
    $module['checkbox'] = $module['enable'];

    // Add the module label and expand/collapse functionality.
    $id = Html::getUniqueId('module-' . $key);
    $module['id'] = $id;
    $module['enable_id'] = $module['enable']['#id'];

    // @todo Remove early rendering and use safe_join in the Twig template once
    //   https://www.drupal.org/node/2579091 is fixed.
    $renderer = \Drupal::service('renderer');
    $machine_name_render = [
      '#prefix' => '<span dir="ltr" class="table-filter-text-source">',
      '#plain_text' => $key,
      '#suffix' => '</span>',
    ];
    $module['machine_name'] = $renderer->render($machine_name_render);

    if (!empty($module['#requires'])) {
      $requires = [
        '#theme' => 'item_list',
        '#items' => $module['#requires'],
        '#context' => ['list_style' => 'comma-list'],
      ];
      $module['requires'] = $renderer->render($requires);
    }
    if (!empty($module['#required_by'])) {
      $required_by = [
        '#theme' => 'item_list',
        '#items' => $module['#required_by'],
        '#context' => ['list_style' => 'comma-list'],
      ];
      $module['required_by'] = $renderer->render($required_by);
    }

    if (!empty($module['version'])) {
      $module['version'] = $renderer->render($module['version']);
    }

    $module['attributes'] = new Attribute($module['#attributes']);
    $variables['modules'][] = $module;
  }
}