debug:unassigned now returns exit status 2 when the command ran successfully, but there were some unassigned tokens.

docs/debugging.md

@@ -42,6 +42,10 @@ examples\Layer1\SomeClass
 examples\Layer1\SomeClass2
 ```
 
+This command exist with the return code 2 when it ran successfully, but there
+were some tokens in the output. You can use this information in your CI
+pipelines.
+
 ## `debug:dependencies`
 
 With the `debug:dependencies`-command you can see all dependencies of your layer. You can optionally specify a target layer to get only dependencies from one layer to the other:

src/Supportive/Console/Command/DebugUnassignedCommand.php

@@ -15,6 +15,7 @@ class DebugUnassignedCommand extends Command
 {
     public static $defaultName = 'debug:unassigned';
     public static $defaultDescription = 'Lists tokens that are not assigned to any layer';
+    public const EXIT_WITH_UNASSIGNED_TOKENS = 2;
 
     public function __construct(private readonly DebugUnassignedRunner $runner)
     {
@@ -27,13 +28,13 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $symfonyOutput = new SymfonyOutput($output, $outputStyle);
 
         try {
-            $this->runner->run($symfonyOutput);
+            $result = $this->runner->run($symfonyOutput);
+
+            return $result ? self::EXIT_WITH_UNASSIGNED_TOKENS : self::SUCCESS;
         } catch (CommandRunException $exception) {
             $outputStyle->error($exception->getMessage());
 
             return self::FAILURE;
         }
-
-        return self::SUCCESS;
     }
 }

src/Supportive/Console/Command/DebugUnassignedRunner.php

@@ -16,9 +16,11 @@ final class DebugUnassignedRunner
     public function __construct(private readonly UnassignedTokenAnalyser $analyser) {}
 
     /**
+     * @return bool are there any unassigned tokens?
+     *
      * @throws CommandRunException
      */
-    public function run(OutputInterface $output): void
+    public function run(OutputInterface $output): bool
     {
         try {
             $unassignedTokens = $this->analyser->findUnassignedTokens();
@@ -29,9 +31,11 @@ public function run(OutputInterface $output): void
         if ([] === $unassignedTokens) {
             $output->writeLineFormatted('There are no unassigned tokens.');
 
-            return;
+            return false;
         }
 
         $output->writeLineFormatted($unassignedTokens);
+
+        return true;
     }
 }