/Drupal 8

function drupal_verify_profile


Verifies that all dependencies are met for a given installation profile.


$install_state: An array of information about the current installation state.

Return value

The list of modules to install.


core/includes/install.inc, line 557
API functions for installing modules and themes.


function drupal_verify_profile($install_state) {
  $profile = $install_state['parameters']['profile'];
  $info = $install_state['profile_info'];

  // Get the list of available modules for the selected installation profile.
  $listing = new ExtensionDiscovery(\Drupal::root());
  $present_modules = array();
  foreach ($listing->scan('module') as $present_module) {
    $present_modules[] = $present_module->getName();

  // The installation profile is also a module, which needs to be installed
  // after all the other dependencies have been installed.
  $present_modules[] = $profile;

  // Verify that all of the profile's required modules are present.
  $missing_modules = array_diff($info['dependencies'], $present_modules);

  $requirements = array();

  if ($missing_modules) {
    $build = [
      '#theme' => 'item_list',
      '#context' => ['list_style' => 'comma-list'],

    foreach ($missing_modules as $module) {
      $build['#items'][] = array('#markup' => '<span class="admin-missing">' . Unicode::ucfirst($module) . '</span>');

    $modules_list = \Drupal::service('renderer')->renderPlain($build);
    $requirements['required_modules'] = array(
      'title' => t('Required modules'),
      'value' => t('Required modules not found.'),
      'severity' => REQUIREMENT_ERROR,
      'description' => t('The following modules are required but were not found. Move them into the appropriate modules subdirectory, such as <em>/modules</em>. Missing modules: @modules', array('@modules' => $modules_list)),
  return $requirements;

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