Add some useful git functions

git_repository.py

@@ -1,5 +1,6 @@
 import os
 import subprocess as sub
+from pathlib import Path
 from system_repository import SystemRepository
 from release_type import ReleaseType
 
@@ -33,3 +34,18 @@ class GitRepository():
         else:
             return None
 
+    def get_current_branch(self):
+        self.system_repository.run_checked('git', 'branch', '--show-current')
+
+    def add_file(self, file_path: Path):
+        self.system_repository.run_checked('git', 'add', file_path)
+
+    def commit(self, commit_message: str):
+        self.system_repository.run_checked('git', 'commit', '-m', commit_message)
+
+    def push(self):
+        self.system_repository.run_checked('git', 'push')
+
+    def checkout(self, branch: str):
+        self.system_repository.run_checked('git', 'checkout', branch)
+