Merge pull request #259 from diseku/feat/adjustable_log_level

feat: make log level adjustable

src/mcpo/__init__.py

@@ -69,6 +69,9 @@ def main(
     hot_reload: Annotated[
         Optional[bool], typer.Option("--hot-reload", help="Enable hot reload for config file changes")
     ] = False,
+    log_level: Annotated[
+        Optional[str], typer.Option("--log-level", help="Set log level (DEBUG, INFO, WARNING, ERROR, CRITICAL)")
+    ] = None,
 ):
     server_command = None
     if not config_path:
@@ -122,6 +125,10 @@ def main(
     if not path_prefix.startswith("/"):
         path_prefix = f"/{path_prefix}"
 
+    # Set LOG_LEVEL environment variable if provided
+    if log_level:
+        os.environ["LOG_LEVEL"] = log_level
+
     # Run your async run function from mcpo.main
     asyncio.run(
         run(

src/mcpo/main.py

@@ -507,9 +507,18 @@ async def run(
     ssl_keyfile = kwargs.get("ssl_keyfile")
     path_prefix = kwargs.get("path_prefix") or "/"
 
-    # Configure basic logging
+    # Configure logging based on LOG_LEVEL environment variable
+    log_level = os.getenv("LOG_LEVEL", "INFO").upper()
+    try:
+        numeric_level = getattr(logging, log_level, None)
+        if not isinstance(numeric_level, int):
+            raise ValueError(f"Invalid log level: {log_level}")
+    except (ValueError, AttributeError):
+        logger.warning(f"Invalid LOG_LEVEL '{log_level}', defaulting to INFO")
+        numeric_level = logging.INFO
+
     logging.basicConfig(
-        level=logging.INFO, format="%(asctime)s - %(levelname)s - %(message)s"
+        level=numeric_level, format="%(asctime)s - %(levelname)s - %(message)s"
     )
 
     # Suppress HTTP request logs
@@ -631,13 +640,15 @@ async def run(
         config_watcher.start()
 
     logger.info("Uvicorn server starting...")
+    uvicorn_log_level = log_level.lower()
+
     config = uvicorn.Config(
         app=main_app,
         host=host,
         port=port,
         ssl_certfile=ssl_certfile,
         ssl_keyfile=ssl_keyfile,
-        log_level="info",
+        log_level=uvicorn_log_level,
     )
     server = uvicorn.Server(config)