[Console] Add deprecation message for non-int return value in Command::execute()

jschaedl · jschaedl · commit 67d822783075 · 2019-09-30T22:08:41.000+02:00
diff --git a/src/Symfony/Component/Console/Command/Command.php b/src/Symfony/Component/Console/Command/Command.php
@@ -253,6 +253,10 @@ public function run(InputInterface $input, OutputInterface $output)
             $statusCode = ($this->code)($input, $output);
         } else {
             $statusCode = $this->execute($input, $output);
+
+            if (!is_numeric($statusCode) || null === $statusCode) {
+                @trigger_error(sprintf('A non numeric or nullable $statusCode returned by Command::execute() is deprecated since Symfony 4.4, return an integer value instead.'), E_USER_DEPRECATED);
+            }
         }
 
         return is_numeric($statusCode) ? (int) $statusCode : 0;
