fix(commit): honor message length limit from cli and config

CLI > config > default (0) for not limit

Author: ttw225

commitizen/commands/commit.py

@@ -54,6 +54,13 @@ def __init__(self, config: BaseConfig, arguments: CommitArgs) -> None:
         self.arguments = arguments
         self.backup_file_path = get_backup_file_path()
 
+        message_length_limit = arguments.get("message_length_limit")
+        self.message_length_limit: int = (
+            message_length_limit
+            if message_length_limit is not None
+            else config.settings["message_length_limit"]
+        )
+
     def _read_backup_message(self) -> str | None:
         # Check the commit backup file exists
         if not self.backup_file_path.is_file():
@@ -85,19 +92,14 @@ def _get_message_by_prompt_commit_questions(self) -> str:
         return message
 
     def _validate_subject_length(self, message: str) -> None:
-        message_length_limit = self.arguments.get(
-            "message_length_limit", self.config.settings.get("message_length_limit", 0)
-        )
         # By the contract, message_length_limit is set to 0 for no limit
-        if (
-            message_length_limit is None or message_length_limit <= 0
-        ):  # do nothing for no limit
+        if self.message_length_limit <= 0:
             return
 
         subject = message.partition("\n")[0].strip()
-        if len(subject) > message_length_limit:
+        if len(subject) > self.message_length_limit:
             raise CommitMessageLengthExceededError(
-                f"Length of commit message exceeds limit ({len(subject)}/{message_length_limit}), subject: '{subject}'"
+                f"Length of commit message exceeds limit ({len(subject)}/{self.message_length_limit}), subject: '{subject}'"
             )
 
     def manual_edit(self, message: str) -> str: