quack.py•2.62 kB
#!/usr/bin/env python3
"""
Quack - Python code analysis MCP server
This MCP server provides asynchronous linting and static analysis tools
for Python code.
"""
import argparse
import logging
import os
import signal
import sys
# Handle SIGINT (Ctrl+C) gracefully
def signal_handler(sig, frame):
print("Shutting down server gracefully...")
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
# Configure logging
logging.basicConfig(
level=logging.INFO,
format="[%(asctime)s] [%(levelname)s] [%(name)s] %(message)s",
datefmt="%Y-%m-%d %H:%M:%S",
)
logger = logging.getLogger("quack")
# Create a file handler for persistent logs if running in a writable directory
try:
os.makedirs("logs", exist_ok=True)
file_handler = logging.FileHandler("logs/quack.log")
file_handler.setFormatter(
logging.Formatter(
"[%(asctime)s] [%(levelname)s] [%(name)s] %(message)s"
)
)
logger.addHandler(file_handler)
except (PermissionError, OSError):
# Skip file logging if we can't write to the directory
logger.warning("Could not create log directory. File logging disabled.")
# Import server creation function
from quack.server import create_server
# Create the server at module level with a standard name that MCP CLI can find
server = create_server()
def main():
"""Main entry point for the Quack server"""
parser = argparse.ArgumentParser(
description="Quack - Python code analysis MCP server"
)
parser.add_argument(
"--debug", action="store_true", help="Enable debug logging"
)
parser.add_argument(
"--streamable-http",
action="store_true",
help="Run with streamable-http transport",
)
parser.add_argument(
"--host", default="0.0.0.0", help="Host to bind (default: 0.0.0.0)"
)
parser.add_argument(
"--port", type=int, default=8000, help="Port to bind (default: 8000)"
)
args = parser.parse_args()
# Set debug logging if requested
if args.debug:
logger.setLevel(logging.DEBUG)
logger.debug("Debug logging enabled")
try:
if args.streamable_http:
server.settings.host = args.host
server.settings.port = args.port
server.run(transport="streamable-http")
else:
logger.info(
"[Server] Starting Quack MCP server with stdio transport"
)
server.run()
except Exception as e:
logger.critical(f"[Server] Fatal error: {str(e)}", exc_info=True)
sys.exit(1)
if __name__ == "__main__":
main()
