[FrameworkBundle] Update ContainerDebugCommand to add parial search for tags

Author: vshevelev

Command/ContainerDebugCommand.php

@@ -145,6 +145,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         } elseif ($input->getOption('tags')) {
             $options = ['group_by' => 'tags'];
         } elseif ($tag = $input->getOption('tag')) {
+            $tag = $this->findProperTagName($input, $errorIo, $object, $tag);
             $options = ['tag' => $tag];
         } elseif ($name = $input->getArgument('name')) {
             $name = $this->findProperServiceName($input, $errorIo, $object, $name, $input->getOption('show-hidden'));
@@ -287,6 +288,24 @@ private function findProperServiceName(InputInterface $input, SymfonyStyle $io,
         return $io->choice('Select one of the following services to display its information', $matchingServices);
     }
 
+    private function findProperTagName(InputInterface $input, SymfonyStyle $io, ContainerBuilder $builder, string $tagName): string
+    {
+        if (\in_array($tagName, $builder->findTags(), true) || !$input->isInteractive()) {
+            return $tagName;
+        }
+
+        $matchingTags = $this->findTagsContaining($builder, $tagName);
+        if (!$matchingTags) {
+            throw new InvalidArgumentException(sprintf('No tags found that match "%s".', $tagName));
+        }
+
+        if (1 === \count($matchingTags)) {
+            return $matchingTags[0];
+        }
+
+        return $io->choice('Select one of the following tags to display its information', $matchingTags);
+    }
+
     private function findServiceIdsContaining(ContainerBuilder $builder, string $name, bool $showHidden): array
     {
         $serviceIds = $builder->getServiceIds();
@@ -306,6 +325,19 @@ private function findServiceIdsContaining(ContainerBuilder $builder, string $nam
         return $foundServiceIds ?: $foundServiceIdsIgnoringBackslashes;
     }
 
+    private function findTagsContaining(ContainerBuilder $builder, string $tagName): array
+    {
+        $tags = $builder->findTags();
+        $foundTags = [];
+        foreach ($tags as $tag) {
+            if (str_contains($tag, $tagName)) {
+                $foundTags[] = $tag;
+            }
+        }
+
+        return $foundTags;
+    }
+
     /**
      * @internal
      */

Tests/Functional/ContainerDebugCommandTest.php

@@ -100,6 +100,27 @@ public function testIgnoreBackslashWhenFindingService(string $validServiceId)
         $this->assertStringNotContainsString('No services found', $tester->getDisplay());
     }
 
+    public function testTagsPartialSearch()
+    {
+        static::bootKernel(['test_case' => 'ContainerDebug', 'root_config' => 'config.yml']);
+
+        $application = new Application(static::$kernel);
+        $application->setAutoExit(false);
+
+        $tester = new ApplicationTester($application);
+        $tester->setInputs(['0']);
+        $tester->run(['command' => 'debug:container', '--tag' => 'kernel.']);
+
+        $this->assertStringContainsString('Select one of the following tags to display its information', $tester->getDisplay());
+        $this->assertStringContainsString('[0] kernel.event_subscriber', $tester->getDisplay());
+        $this->assertStringContainsString('[1] kernel.locale_aware', $tester->getDisplay());
+        $this->assertStringContainsString('[2] kernel.cache_warmer', $tester->getDisplay());
+        $this->assertStringContainsString('[3] kernel.fragment_renderer', $tester->getDisplay());
+        $this->assertStringContainsString('[4] kernel.reset', $tester->getDisplay());
+        $this->assertStringContainsString('[5] kernel.cache_clearer', $tester->getDisplay());
+        $this->assertStringContainsString('Symfony Container Services Tagged with "kernel.event_subscriber" Tag', $tester->getDisplay());
+    }
+
     public function testDescribeEnvVars()
     {
         putenv('REAL=value');