File size: 3,336 Bytes
6165ba9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | import os
import logging
from datetime import datetime, timedelta
logger = logging.getLogger(__name__)
def cleanup_old_files(directory, max_age_days=7):
"""
Remove files older than max_age_days from the specified directory.
Optimized to use os.scandir for better performance.
"""
if not os.path.exists(directory):
logger.warning(f"Directory does not exist: {directory}")
return 0
removed_count = 0
now = datetime.now()
cutoff_time = now - timedelta(days=max_age_days)
try:
with os.scandir(directory) as entries:
for entry in entries:
if entry.is_file():
try:
# entry.stat().st_mtime is faster than os.path.getmtime
file_mtime = datetime.fromtimestamp(entry.stat().st_mtime)
if file_mtime < cutoff_time:
os.remove(entry.path)
removed_count += 1
logger.info(f"Removed old file: {entry.path}")
except OSError as e:
logger.error(f"Error accessing/removing file {entry.path}: {e}")
if removed_count > 0:
logger.info(f"Cleanup completed: removed {removed_count} files older than {max_age_days} days from {directory}")
return removed_count
except Exception as e:
logger.error(f"Error during cleanup of directory {directory}: {e}")
return 0
def limit_file_count(directory, max_files=1000):
"""
Ensure no more than max_files are kept in the directory (removes oldest first).
Optimized to use os.scandir.
"""
if not os.path.exists(directory):
logger.warning(f"Directory does not exist: {directory}")
return 0
try:
files = []
with os.scandir(directory) as entries:
for entry in entries:
if entry.is_file():
files.append((entry.path, entry.stat().st_mtime))
# If we are within limits, return early
if len(files) <= max_files:
return 0
# Sort by modification time (oldest first)
files.sort(key=lambda x: x[1])
# Remove oldest files if we exceed the limit
files_to_remove = files[:-max_files]
removed_count = 0
for file_path, _ in files_to_remove:
try:
os.remove(file_path)
removed_count += 1
logger.info(f"Removed excess file: {file_path}")
except OSError as e:
logger.error(f"Error removing file {file_path}: {e}")
logger.info(f"File count limit enforced: removed {removed_count} oldest files, keeping max {max_files}")
return removed_count
except Exception as e:
logger.error(f"Error during file count limiting in directory {directory}: {e}")
return 0
def perform_cleanup(directory, max_age_days=7, max_files=1000):
"""Perform both time-based and count-based cleanup."""
time_removed = cleanup_old_files(directory, max_age_days)
count_removed = limit_file_count(directory, max_files)
return time_removed + count_removed
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