/**
* Gets the root path under which projects are installed or updated.
*
* The Update Manager will ensure that project files can only be copied to
* specific subdirectories of this root path.
*
* @return string
*/
public function get()
{
// Normally the Update Manager's root path is the same as the app root (the
// directory in which the Drupal site is installed).
$root_path = $this->drupalKernel->getAppRoot();
// When running in a test site, change the root path to be the testing site
// directory. This ensures that it will always be writable by the webserver
// (thereby allowing the actual extraction and installation of projects by
// the Update Manager to be tested) and also ensures that new project files
// added there won't be visible to the parent site and will be properly
// cleaned up once the test finishes running. This is done here (rather
// than having the tests enable a module which overrides the update root
// factory service) to ensure that the parent site is automatically kept
// clean without relying on test authors to take any explicit steps. See
// also \Drupal\update\Tests\UpdateTestBase::setUp().
if (DRUPAL_TEST_IN_CHILD_SITE) {
$kernel = $this->drupalKernel;
$request = $this->requestStack->getCurrentRequest();
$root_path .= '/' . $kernel::findSitePath($request);
}
return $root_path;
}
/**
* Gets the app root.
*
* @return string
*/
public function get()
{
return $this->drupalKernel->getAppRoot();
}
