edlp_d8/sites/all/modules/contrib/dev/redis/redis.module

<?php

/**
 * @file
 * Redis module.
 *
 * This file is a placeholder for other modules that need the Redis client for
 * something else than lock and cache.
 */

use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\redis\ClientFactory;

/**
 * Implements hook_help().
 */
function redis_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.redis':
      if (ClientFactory::hasClient()) {
        $messages = '<p><strong>' . t("Current connected client uses the <em>@name</em> library.", ['@name' => ClientFactory::getClientName()]) . '</strong></p>';
      }
      else {
        $messages = '<p><strong>' . t('No redis connection configured.') . '</strong></p>';
      }
      return $messages;
  }
}