openflexure-microscope-server/src/openflexure_microscope_server/logging.py
2023-12-13 01:54:42 +00:00

38 lines
1.3 KiB
Python

import logging
from logging.handlers import RotatingFileHandler
import os
from fastapi.responses import FileResponse, PlainTextResponse
OFM_LOG_FOLDER = "/var/openflexure/log/"
OFM_LOG_FILE = os.path.join(OFM_LOG_FOLDER, "openflexure-microscope-server.log")
def configure_logging():
root_logger = logging.getLogger()
root_logger.setLevel(logging.INFO)
try:
if not os.path.exists(OFM_LOG_FOLDER):
os.makedirs(OFM_LOG_FOLDER)
handler = RotatingFileHandler(
filename = OFM_LOG_FILE,
mode = "a",
maxBytes = 1000000,
backupCount = 10,
)
handler.setFormatter(
logging.Formatter(
"[%(asctime)s] [%(levelname)s] %(message)s"
)
)
root_logger.addHandler(handler)
except PermissionError as e:
logging.warning(f"Cannot create log file at {OFM_LOG_FILE}: {e}")
logging.info("")
logging.info("****************************************************")
logging.info("OFM server root logger has been set up at INFO level")
logging.info("****************************************************")
def retrieve_log() -> PlainTextResponse:
"""The most recent 1Mb of logs from the server"""
return FileResponse(OFM_LOG_FILE, media_type=PlainTextResponse.media_type)