drupal_module__munin_api/munin_api.install

<?php

/**
 * @file
 * Munin API for Drupal: installation and runtime checks.
 *
 * @copyright (c) 2011-2019 Ouest Systèmes Informatiques
 *
 * Licensed under the General Public License version 2 or later.
 */

use Drupal\munin_api\Munin;

require_once __DIR__ . '/src/Munin.php';

/**
 * Implements hook_requirements().
 */
function munin_api_requirements($phase) {
  $ret = array();
  $t = get_t();
  if ($phase == 'runtime') {
    $count = count(module_implements(Munin::HOOK_INFO));
    switch ($count) {
      case 0:
        $req = [
          'title' => $t('Munin plugin modules'),
          'value' => $t('No plugin found'),
          'description' => $t('Munin API is enabled, but does not find any plugin, including the one built into the API.'),
          'severity' => REQUIREMENT_ERROR,
        ];
        break;

      case 1:
        $req = [
          'title' => $t('Munin plugin modules'),
          'value' => $t('No Munin plugin module enabled beyond API'),
          'description' => $t('Munin API is enabled, but no plugin module is enabled to report to it except the one built within the API. You should either <a href="!link">enable some plugin modules</a> or <a href="!link">disable and uninstall Munin API</a>.', [
            '!link' => url('admin/modules'),
          ]),
          'severity' => REQUIREMENT_INFO,
        ];
        break;

      default:
        $req = [
          'title' => $t('Munin plugin modules'),
          // Format plural although $count >= 2 because some languages have
          // several plural forms.
          'value' => format_plural($count, '1 Munin plugin enabled.',
            '<a href="!link">@count Munin plugins</a> enabled.', [
              '!link' => url(Munin::R_REPORTS),
            ]
          ),
          'severity' => REQUIREMENT_OK,
        ];
    }
    $ret[] = $req;
  }
  elseif ($phase != 'install') {
    // This should never happen and points to a severe error somewhere.
    watchdog(Munin::MODULE, 'Invalid phase %phase passed to %function', [
      '%phase' => $phase,
      '%function' => __FUNCTION__,
    ], WATCHDOG_ERROR);
  }
  /* else $phase == 'install', nothing to do. */

  return $ret;
}

/**
 * Implements hook_install().
 */
function munin_api_install() {
  variable_set(Munin::V_INIT_PATH, Munin::D_INIT_PATH);
  variable_set(Munin::V_LAST, 0);
  // Ensure reporting is indeed opt-in, forcing default to off.
  variable_set(Munin::V_NEXT_REPORT, 0);
  variable_set(Munin::V_WATCHDOG, Munin::D_WATCHDOG);
}

/**
 * Implements hook_uninstall().
 */
function munin_api_uninstall() {
  $vars = [
    Munin::V_INIT_PATH,
    Munin::V_LAST,
    Munin::V_NEXT_REPORT,
    Munin::V_WATCHDOG,
  ];
  foreach ($vars as $var) {
    variable_del($var);
  }
}