Pretty output for genkey command

Author: boite

src/Command/GenerateKeyCommand.php

@@ -8,6 +8,7 @@
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
 
 class GenerateKeyCommand extends Command
 {
@@ -35,29 +36,33 @@ protected function configure()
 
     protected function execute(InputInterface $input, OutputInterface $output)
     {
+        $io = new SymfonyStyle($input, $output);
+
         $path = $input->getArgument(self::ARG_PATH);
 
         if (\file_exists($path)) {
-            $output->writeln("I cannot create a key file at \"{$path}\" because a file exists there already. I stop!");
+            $io->error("I cannot create a key file at \"{$path}\" because a file exists there already. I stop!");
 
             return 1;
         }
 
-        if (null !== $input->getOption(self::OPT_SIGNING)) {
+        if ($input->getOption(self::OPT_SIGNING)) {
             if (true !== KeyFactory::save(KeyFactory::generateAuthenticationKey(), $path)) {
-                $output->writeln("I tried, but was unable to write the signing key to a file at \"{$path}\". I apologise!");
+                $io->error("I tried, but was unable to write the signing key to a file at \"{$path}\". I apologise!");
 
                 return 2;
             }
+            $io->success("Signing key saved to \"{$path}\".");
 
             return 0;
         }
 
         if (true !== KeyFactory::save(KeyFactory::generateEncryptionKey(), $path)) {
-            $output->writeln("I tried, but was unable to write the encryption key to a file at \"{$path}\". I apologise!");
+            $io->error("I tried, but was unable to write the encryption key to a file at \"{$path}\". I apologise!");
 
             return 2;
         }
+        $io->success("Encryption key saved to \"{$path}\".");
 
         return 0;
     }