Fix linting issues

Author: m-mohr

vecorel_cli/cli/logger.py

@@ -1,7 +1,7 @@
 import re
 import sys
 from logging import Logger
-from typing import Any, Optional
+from typing import Any, Optional, Union
 
 from loguru import logger
 
@@ -36,7 +36,7 @@ def info(self, message: str, **kwargs):
     def warning(self, message: str, **kwargs):
         self.log(message, "warning", **kwargs)
 
-    def error(self, message: str, **kwargs):
+    def error(self, message: Union[Exception, str], **kwargs):
         self.log(message, "error", **kwargs)
 
     def success(self, message: str, **kwargs):
@@ -58,7 +58,9 @@ def log(
         # Escape XML/HTML tags etc. that look like loguru color directives
         # The regexp is coming directly from the loguru source code, see
         # https://github.com/Delgan/loguru/blob/master/loguru/_colorizer.py
-        message = re.sub(r"(</?(?:[fb]g\s)?[^<>\s]*>)", r"\\\1", message, count=0, flags=re.IGNORECASE)
+        message = re.sub(
+            r"(</?(?:[fb]g\s)?[^<>\s]*>)", r"\\\1", message, count=0, flags=re.IGNORECASE
+        )
 
         # Handle indentation (including multiple lines)
         message = self._indent_text(message, indent)

vecorel_cli/validate.py

@@ -35,14 +35,14 @@ def get_cli_args():
     def validate_cli(
         self,
         source: list[Union[str, Path]],
-        num: int = 100,
+        num: Optional[int] = 100,
         schema_map: SchemaMapping = {},
     ):
         if not isinstance(source, list):
             raise ValueError("Source must be a list.")
         if len(source) == 0:
             raise ValueError("No source files provided")
-        if num < 0:
+        if num is not None and num < 0:
             num = None
 
         invalid = 0
@@ -102,6 +102,8 @@ def validate(
     ) -> Validator:
         encoding = create_encoding(file)
         validator = encoding.get_validator()
+        if validator is None:
+            raise ValueError(f"No validator available for files of type {encoding.get_format()}")
         validator.set_required_schemas(Registry.required_extensions)
         validator.validate(num=num, schema_map=schema_map)
         return validator