bug #23870 [DI] Use GlobResource for non-tracked directories (vudaltsov)

This PR was merged into the 3.3 branch.

Discussion
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[DI] Use GlobResource for non-tracked directories

| Q             | A
| ------------- | ---
| Branch?       | 3.3
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

I noticed that some of my excluded directories are still tracked by the container and changes to files inside them make it recompile. This brought me to the `$trackContents || is_dir($path)` line introduced in #21505.

Commits
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048eb18 [DI] Use GlobResource for non-tracked directories

Author: nicolas-grekas

ContainerBuilder.php

@@ -408,9 +408,13 @@ public function fileExists($path, $trackContents = true)
             return $exists;
         }
 
-        if ($trackContents && is_dir($path)) {
-            $this->addResource(new DirectoryResource($path, is_string($trackContents) ? $trackContents : null));
-        } elseif ($trackContents || is_dir($path)) {
+        if (is_dir($path)) {
+            if ($trackContents) {
+                $this->addResource(new DirectoryResource($path, is_string($trackContents) ? $trackContents : null));
+            } else {
+                $this->addResource(new GlobResource($path, '/*', false));
+            }
+        } elseif ($trackContents) {
             $this->addResource(new FileResource($path));
         }