autodetect branch

Author: jordisala1991

src/Console/Command/ReleaseCommand.php

@@ -53,8 +53,9 @@ protected function configure()
 <info>php dev-kit release doctrine-orm-admin-bundle</info>
 
 The command will show what is the status of the project, then a list of pull requests
-made against selected branch (default: <info>3.x</info>) with the following information: stability, name,
-labels, changelog, url.
+made against selected branch (default: stable branch) with the following information:
+
+stability, name, labels, changelog, url.
 
 After that, it will show what is the next version to release and the changelog for that release.
 EOT;
@@ -63,7 +64,6 @@ protected function configure()
             ->setName('release')
             ->setDescription('Helps with a project release.')
             ->addArgument('project', InputArgument::REQUIRED, 'The project to release.')
-            ->addOption('branch', null, InputOption::VALUE_OPTIONAL, 'branch to release', '3.x')
             ->setHelp($help);
     }
 
@@ -73,7 +73,14 @@ protected function configure()
     protected function execute(InputInterface $input, OutputInterface $output)
     {
         $project = $input->getArgument('project');
-        $branch = $input->getOption('branch');
+
+        if (!array_key_exists($project, $this->configs['projects'])) {
+            $this->io->error('Project is not configured: '.$project);
+
+            return 1;
+        }
+        $branches = array_keys($this->configs['projects'][$project]['branches']);
+        $branch = next($branches);
 
         try {
             $package = $this->packagistClient->get(static::PACKAGIST_GROUP.'/'.$project);