Command::execute must return int type

Author: XWB

src/Command/InvalidatePathCommand.php

@@ -69,7 +69,7 @@ protected function configure()
     /**
      * {@inheritdoc}
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $paths = $input->getArgument('paths');
 
@@ -80,5 +80,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
             $this->getCacheManager()->invalidatePath($path);
         }
+
+        return 0;
     }
 }

src/Command/InvalidateRegexCommand.php

@@ -72,10 +72,12 @@ protected function configure()
     /**
      * {@inheritdoc}
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $regex = $input->getArgument('regex');
 
         $this->getCacheManager()->invalidateRegex($regex);
+
+        return 0;
     }
 }

src/Command/InvalidateTagCommand.php

@@ -67,10 +67,12 @@ protected function configure()
     /**
      * {@inheritdoc}
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $tags = $input->getArgument('tags');
 
         $this->getCacheManager()->invalidateTags($tags);
+
+        return 0;
     }
 }

src/Command/RefreshPathCommand.php

@@ -69,7 +69,7 @@ protected function configure()
     /**
      * {@inheritdoc}
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $paths = $input->getArgument('paths');
 
@@ -80,5 +80,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
             $this->getCacheManager()->refreshPath($path);
         }
+
+        return 0;
     }
 }