fix: File logging config

config/config.yaml

@@ -1,6 +1,6 @@
 logging:
     level: "TRACE"
-    path: "logs/karl.log"
+    path: "../../logs/karl.log"
 app:
     host: "127.0.0.1"
     port: 8081

src/karl/config/settings.py

@@ -8,7 +8,7 @@ from pydantic_settings import BaseSettings, SettingsConfigDict
 
 class LoggingConfig(BaseModel):
   level: str = "INFO"
-  path: Path = Path("logs/karl.log")
+  path: Path | None = None
 
 
 class AppConfig(BaseModel):

src/karl/util/logging.py

@@ -68,7 +68,9 @@ class HandlerFactory:
 
     def file_handler(prefix: str = ''):
       if not file_path:
-        raise ValueError("File path must be set.")
+        import sys
+        sys.stderr.write("No file path specified, skipping file logging...")
+        return None
       file_path.parent.mkdir(parents=True, exist_ok=True)
       file_path.touch(exist_ok=True)
       handler = TimedRotatingFileHandler(file_path, when='midnight', backupCount=30)
@@ -87,4 +89,5 @@ class HandlerFactory:
         handlers.append(console_handler(handler_prefix))
       case _:
         raise ValueError(f"Unknown target: {target}")
+    handlers = [h for h in handlers if h is not None]
     return handlers