feat: Add function to get git editor

Add a new function `get_git_editor` in `git_utils.py` to retrieve the configured git editor or use 'vim' as the default. This function checks for the environment variables GIT_EDITOR and EDITOR, setting them accordingly. If not set, it defaults to 'vim' on non-Windows platforms and 'notepad.exe' on Windows platforms.

Update `user_interaction.py` to use this new function instead of directly getting the editor from environment variables.

src/git_utils.py

@@ -96,3 +96,17 @@ def commit_full_text_message(repo_path: str, message: str) -> str:
     except Exception as e:
         logger.error(f"Failed to commit the message. Details: {e}")
         sys.exit(1)
+
+
+# get git core editor, if not set, use vim
+def get_git_editor() -> str:
+    """
+    Get the configured git editor or use 'vim' as the default.
+    """
+    editor = os.getenv("GIT_EDITOR", os.getenv("EDITOR"))
+    if editor is None:
+        if sys.platform.startswith("win"):
+            editor = "notepad.exe"
+        else:
+            editor = "vim"
+    return editor

src/user_interaction.py

@@ -5,6 +5,7 @@
 import os
 import tempfile
 import subprocess
+from .git_utils import get_git_editor
 
 
 def get_user_input(prompt: str, default: str) -> str:
@@ -19,7 +20,7 @@ def edit_message(message: str) -> str:
     """
     Open the provided message in a text editor and return the edited message.
     """
-    editor = os.getenv("EDITOR", "vim")
+    editor = get_git_editor()
     with tempfile.NamedTemporaryFile(suffix=".tmp") as tf:
         tf.write(message.encode())
         tf.flush()