Boots up a Drupal environment.

Return value

\Drupal\Core\DrupalKernelInterface The Drupal kernel.

Throws

\Exception Exception thrown if kernel does not boot.

1 call to BootableCommandTrait::boot()

RecipeInfoCommand::execute in core/lib/Drupal/Core/Recipe/RecipeInfoCommand.php

File

core/lib/Drupal/Core/Command/BootableCommandTrait.php, line 38

Class

BootableCommandTrait

Contains helper methods for console commands that boot up Drupal.

Namespace

Drupal\Core\Command

Code

protected function boot() : DrupalKernelInterface {
  $kernel = new DrupalKernel('prod', $this->classLoader);
  $kernel::bootEnvironment();
  $kernel->setSitePath($this->getSitePath());
  Settings::initialize($kernel->getAppRoot(), $kernel->getSitePath(), $this->classLoader);
  $kernel->boot();
  $request = Request::createFromGlobals();
  $kernel->preHandle($request);
  // Try to register an event listener to properly terminate the Drupal kernel
  // when the console application itself terminates. This ensures that
  // `kernel.destructable_services` are destructed, which in turn ensures that
  // the router can be rebuilt if needed, along with other services that
  // perform actions on destruct.
  $event_dispatcher = $kernel->getContainer()
    ->get(EventDispatcherInterface::class);
  if ($kernel instanceof TerminableInterface && $event_dispatcher instanceof ComponentEventDispatcherInterface) {
    $event_dispatcher->addListener(ConsoleEvents::TERMINATE, function () use ($kernel, $request) : void {
      $kernel->terminate($request, new Response());
    });
    $this->getApplication()
      ->setDispatcher($event_dispatcher);
  }
  return $kernel;
}

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