Issue #3424290 check if file settings path exist

Closes #3424290

package_manager/src/PathExcluder/SiteFilesExcluder.php

@@ -59,7 +59,9 @@ final class SiteFilesExcluder implements EventSubscriberInterface {
         $path = $wrapper->getDirectoryPath();
 
         if ($this->fileSystem->isAbsolutePath($path)) {
-          $event->addPathsRelativeToProjectRoot([realpath($path)]);
+          if ($path = realpath($path)) {
+            $event->addPathsRelativeToProjectRoot([$path]);
+          }
         }
         else {
           $event->addPathsRelativeToWebRoot([$path]);

[Adam G-H]

I'd rather we used $this->fileSystem->realpath() for this. Otherwise, no objections.

[Ted Bowman]

$this->fileSystem in this case is \Symfony\Component\Filesystem\Filesystem and it doesn't have realPath() method. Maybe you are thinking of \Drupal\Core\File\FileSystem::realpath but we don't have that service here. We are using just realpath() in multiple places.