refactor(cz_customize): return empty string for info, example, schema…

… and schema_pattern if not provided

commitizen/cz/base.py

@@ -61,7 +61,7 @@ class BaseCommitizen(metaclass=ABCMeta):
     template_loader: BaseLoader = PackageLoader("commitizen", "templates")
     template_extras: dict[str, Any] = {}
 
-    def __init__(self, config: BaseConfig):
+    def __init__(self, config: BaseConfig) -> None:
         self.config = config
         if not self.config.settings.get("style"):
             self.config.settings.update({"style": BaseCommitizen.default_style_config})
@@ -83,19 +83,19 @@ def style(self):
             ]
         )
 
-    def example(self) -> str | None:
+    def example(self) -> str:
         """Example of the commit message."""
         raise NotImplementedError("Not Implemented yet")
 
-    def schema(self) -> str | None:
+    def schema(self) -> str:
         """Schema definition of the commit message."""
         raise NotImplementedError("Not Implemented yet")
 
-    def schema_pattern(self) -> str | None:
+    def schema_pattern(self) -> str:
         """Regex matching the schema used for message validation."""
         raise NotImplementedError("Not Implemented yet")
 
-    def info(self) -> str | None:
+    def info(self) -> str:
         """Information about the standardized commit message."""
         raise NotImplementedError("Not Implemented yet")
 

commitizen/cz/customize/customize.py

@@ -68,16 +68,16 @@ def message(self, answers: dict) -> str:
         else:
             return message_template.render(**answers)
 
-    def example(self) -> str | None:
-        return self.custom_settings.get("example")
+    def example(self) -> str:
+        return self.custom_settings.get("example") or ""
 
-    def schema_pattern(self) -> str | None:
-        return self.custom_settings.get("schema_pattern")
+    def schema_pattern(self) -> str:
+        return self.custom_settings.get("schema_pattern") or ""
 
-    def schema(self) -> str | None:
-        return self.custom_settings.get("schema")
+    def schema(self) -> str:
+        return self.custom_settings.get("schema") or ""
 
-    def info(self) -> str | None:
+    def info(self) -> str:
         info_path = self.custom_settings.get("info_path")
         info = self.custom_settings.get("info")
         if info_path:
@@ -86,4 +86,4 @@ def info(self) -> str | None:
             return content
         elif info:
             return info
-        return None
+        return ""

commitizen/exceptions.py

@@ -42,7 +42,7 @@ class ExitCode(enum.IntEnum):
 class CommitizenException(Exception):
     def __init__(self, *args, **kwargs):
         self.output_method = kwargs.get("output_method") or out.error
-        self.exit_code = self.__class__.exit_code
+        self.exit_code: ExitCode = self.__class__.exit_code
         if args:
             self.message = args[0]
         elif hasattr(self.__class__, "message"):

docs/customization.md

@@ -151,11 +151,11 @@ commitizen:
 | ------------------- | ------ | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `questions`         | `Questions` | `None`  | Questions regarding the commit message. Detailed below. The type `Questions` is an alias to `Iterable[MutableMapping[str, Any]]` which is defined in `commitizen.defaults`. It expects a list of dictionaries. |
 | `message_template`  | `str`  | `None`  | The template for generating message from the given answers. `message_template` should either follow [Jinja2][jinja2] formatting specification, and all the variables in this template should be defined in `name` in `questions` |
-| `example`           | `str`  | `None`  | (OPTIONAL) Provide an example to help understand the style. Used by `cz example`.                                                                                                                                                |
-| `schema`            | `str`  | `None`  | (OPTIONAL) Show the schema used. Used by `cz schema`.                                                                                                                                                                            |
-| `schema_pattern`    | `str`  | `None`  | (OPTIONAL) The regular expression used to do commit message validation. Used by `cz check`.                                                                                                                                      |
-| `info_path`         | `str`  | `None`  | (OPTIONAL) The path to the file that contains explanation of the commit rules. Used by `cz info`. If not provided `cz info`, will load `info` instead.                                                                           |
-| `info`              | `str`  | `None`  | (OPTIONAL) Explanation of the commit rules. Used by `cz info`.                                                                                                                                                                   |
+| `example`           | `str`  | `""`  | (OPTIONAL) Provide an example to help understand the style. Used by `cz example`.                                                                                                                                                |
+| `schema`            | `str`  | `""`  | (OPTIONAL) Show the schema used. Used by `cz schema`.                                                                                                                                                                            |
+| `schema_pattern`    | `str`  | `""`  | (OPTIONAL) The regular expression used to do commit message validation. Used by `cz check`.                                                                                                                                      |
+| `info_path`         | `str`  | `""`  | (OPTIONAL) The path to the file that contains explanation of the commit rules. Used by `cz info`. If not provided `cz info`, will load `info` instead.                                                                           |
+| `info`              | `str`  | `""`  | (OPTIONAL) Explanation of the commit rules. Used by `cz info`.                                                                                                                                                                   |
 | `bump_map`          | `dict` | `None`  | (OPTIONAL) Dictionary mapping the extracted information to a `SemVer` increment type (`MAJOR`, `MINOR`, `PATCH`)                                                                                                                 |
 | `bump_pattern`      | `str`  | `None`  | (OPTIONAL) Regex to extract information from commit (subject and body)                                                                                                                                                           |
 | `change_type_order`| `str`  | `None` | (OPTIONAL) List of strings used to order the Changelog. All other types will be sorted alphabetically. Default is `["BREAKING CHANGE", "Feat", "Fix", "Refactor", "Perf"]`                                                                                             |