Return stdout from git_repository functions

git_repository.py

@@ -42,21 +42,28 @@ class GitRepository():
 
     def tag_annotated(self, annotation: str, message: str):
         self.system_repository.run_checked('git', 'tag', '-a', annotation, '-m', message)
+        return self.system_repository.stdout
 
     def tag_annotated(self, annotation: str, message: str, count: int):
         self.system_repository.run_checked('git', 'tag', '-a', annotation, '-m', message, f'HEAD~{count}')
+        return self.system_repository.stdout
 
     def get_current_branch(self):
         self.system_repository.run_checked('git', 'branch', '--show-current')
+        return ''.join(self.system_repository.stdout).rstrip()
 
     def add_file(self, file_path: Path):
         self.system_repository.run_checked('git', 'add', file_path)
+        return self.system_repository.stdout
 
     def commit(self, commit_message: str):
         self.system_repository.run_checked('git', 'commit', '-m', commit_message)
+        return self.system_repository.stdout
 
     def push(self):
         self.system_repository.run_checked('git', 'push')
+        return self.system_repository.stdout
 
     def checkout(self, branch: str):
         self.system_repository.run_checked('git', 'checkout', branch)
+        return self.system_repository.stdout