Fix Command::execute() to return int

See symfony/symfony#33747

Author: rybakit

src/Console/Command/KickCommand.php

@@ -19,7 +19,7 @@ protected function configure(): void
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output): void
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $queue = $this->createConfigFactory($input, $output)->createQueue();
         $count = $input->getArgument('count');
@@ -31,5 +31,7 @@ protected function execute(InputInterface $input, OutputInterface $output): void
             $affected,
             $queue->getName()
         ));
+
+        return 0;
     }
 }

src/Console/Command/PutCommand.php

@@ -19,7 +19,7 @@ protected function configure(): void
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output): void
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $json = $input->getArgument('json-data');
         $data = json_decode($json, true);
@@ -37,5 +37,7 @@ protected function execute(InputInterface $input, OutputInterface $output): void
             $queue->getName(),
             $task->getId()
         ));
+
+        return 0;
     }
 }

src/Console/Command/RunCommand.php

@@ -24,7 +24,7 @@ protected function configure(): void
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output): void
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $configFactory = $this->createConfigFactory($input, $output);
 
@@ -40,5 +40,7 @@ protected function execute(InputInterface $input, OutputInterface $output): void
 
         $runner = $configFactory->createRunner();
         $runner->run($input->getOption('idle-timeout'));
+
+        return 0;
     }
 }

src/Console/Command/StatsCommand.php

@@ -17,14 +17,16 @@ protected function configure(): void
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output): void
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $queue = $this->createConfigFactory($input, $output)->createQueue();
         $stats = $queue->stats();
 
         $output->writeln(sprintf('Queue: <options=bold>%s</>', $queue->getName()));
         $output->writeln('Tasks: '.self::buildLine($stats['tasks']));
         $output->writeln('Calls: '.self::buildLine($stats['calls']));
+
+        return 0;
     }
 
     private static function buildLine(array $stats): string

src/Console/Command/TruncateCommand.php

@@ -17,11 +17,13 @@ protected function configure(): void
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output): void
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $queue = $this->createConfigFactory($input, $output)->createQueue();
         $queue->truncate();
 
         $output->writeln(sprintf('<info>%s</info> was successfully truncated.', $queue->getName()));
+
+        return 0;
     }
 }