protected function ModuleEnable::moduleEnableCheckDependencies in X Autoload 7.5

Parameters

string[] $module_list:

Return value

string[] Module list with added dependencies, sorted by dependency.

Throws

\Exception

1 call to ModuleEnable::moduleEnableCheckDependencies()

ModuleEnable::moduleEnable in tests/src/VirtualDrupal/ModuleEnable.php

Simulates Drupal's module_enable()

File

tests/src/VirtualDrupal/ModuleEnable.php, line 136

Class

ModuleEnable

Namespace

Drupal\xautoload\Tests\VirtualDrupal

Code

protected function moduleEnableCheckDependencies(array $module_list) {

  // Get all module data so we can find dependencies and sort.
  $module_data = $this->systemRebuildModuleData
    ->systemRebuildModuleData();

  // Create an associative array with weights as values.
  $module_list = array_flip(array_values($module_list));

  // The array is iterated over manually (instead of using a foreach) because
  // modules may be added to the list within the loop and we need to process
  // them.
  while ($module = key($module_list)) {
    next($module_list);
    if (!isset($module_data[$module])) {

      // This module is not found in the filesystem, abort.
      throw new \Exception("Module '{$module}' not found.");
    }
    if ($module_data[$module]->status) {

      // Skip already enabled modules.
      unset($module_list[$module]);
      continue;
    }
    $module_list[$module] = $module_data[$module]->sort;

    // Add dependencies to the list, with a placeholder weight.
    // The new modules will be processed as the while loop continues.
    foreach (array_keys($module_data[$module]->requires) as $dependency) {
      if (!isset($module_list[$dependency])) {
        $module_list[$dependency] = 0;
      }
    }
  }
  if (!$module_list) {

    // Nothing to do. All modules already enabled.
    return array();
  }

  // Sort the module list by pre-calculated weights.
  arsort($module_list);
  return array_keys($module_list);
}