ods777/system/loggerd/deleter.py

85 lines
2.4 KiB
Python
Executable File

#!/usr/bin/env python3
import os
import shutil
import threading
from openpilot.system.hardware.hw import Paths
from openpilot.common.swaglog import cloudlog
from openpilot.system.loggerd.config import get_available_bytes, get_available_percent
from openpilot.system.loggerd.uploader import listdir_by_creation
from openpilot.system.loggerd.xattr_cache import getxattr
MIN_BYTES = 5 * 1024 * 1024 * 1024
MIN_PERCENT = 10
DELETE_LAST = ['boot', 'crash']
PRESERVE_ATTR_NAME = 'user.preserve'
PRESERVE_ATTR_VALUE = b'1'
PRESERVE_COUNT = 5
def has_preserve_xattr(d: str) -> bool:
return getxattr(os.path.join(Paths.log_root(), d), PRESERVE_ATTR_NAME) == PRESERVE_ATTR_VALUE
def get_preserved_segments(dirs_by_creation: list[str]) -> list[str]:
preserved = []
for n, d in enumerate(filter(has_preserve_xattr, reversed(dirs_by_creation))):
if n == PRESERVE_COUNT:
break
date_str, _, seg_str = d.rpartition("--")
# ignore non-segment directories
if not date_str:
continue
try:
seg_num = int(seg_str)
except ValueError:
continue
# preserve segment and its prior
preserved.append(d)
preserved.append(f"{date_str}--{seg_num - 1}")
return preserved
def deleter_thread(exit_event):
while not exit_event.is_set():
out_of_bytes = get_available_bytes(default=MIN_BYTES + 1) < MIN_BYTES
out_of_percent = get_available_percent(default=MIN_PERCENT + 1) < MIN_PERCENT
if out_of_percent or out_of_bytes:
dirs = listdir_by_creation(Paths.log_root())
# skip deleting most recent N preserved segments (and their prior segment)
preserved_dirs = get_preserved_segments(dirs)
# remove the earliest directory we can
for delete_dir in sorted(dirs, key=lambda d: (d in DELETE_LAST, d in preserved_dirs)):
delete_path = os.path.join(Paths.log_root(), delete_dir)
if any(name.endswith(".lock") for name in os.listdir(delete_path)):
continue
try:
cloudlog.info(f"deleting {delete_path}")
if os.path.isfile(delete_path):
os.remove(delete_path)
else:
shutil.rmtree(delete_path)
break
except OSError:
cloudlog.exception(f"issue deleting {delete_path}")
exit_event.wait(.1)
else:
exit_event.wait(30)
def main():
deleter_thread(threading.Event())
if __name__ == "__main__":
main()