Add: Allow to get the git version string

pontos/git/git.py

@@ -168,6 +168,14 @@ def cwd(self, cwd: Path) -> None:
         """
         self._cwd = cwd.absolute()
 
+    @property
+    def version(self) -> str:
+        """
+        Get the version string of the installed git
+        """
+        # git --version returns "git version 2.3.4"
+        return self.exec("--version").strip().rsplit(" ", 1)[1]
+
     def exec(self, *args: str) -> str:
         return exec_git(*args, cwd=self._cwd)
 

tests/git/test_git.py

@@ -17,7 +17,7 @@
 
 import unittest
 from pathlib import Path
-from unittest.mock import patch
+from unittest.mock import MagicMock, patch
 
 from pontos.git import Git
 from pontos.git.git import (
@@ -624,6 +624,17 @@ def test_status_with_files(self, exec_git_mock):
             cwd=None,
         )
 
+    @patch("pontos.git.git.exec_git")
+    def test_version(self, exec_git_mock: MagicMock):
+        exec_git_mock.return_value = "git version 1.2.3"
+        git = Git()
+        self.assertEqual(git.version, "1.2.3")
+
+    def test_version_runs(self):
+        """Getting the git version should not raise an error"""
+        git = Git()
+        git.version
+
 
 class GitExtendedTestCase(unittest.TestCase):
     def test_semantic_list_tags(self):