Role and Team Specific Responsibilities Questions

#!/usr/bin/env python3
import os, sys, argparse, logging, time
from datetime import datetime, timedelta

# Set up logging
logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s: %(message)s")

def delete_old_logs(path, days=7, dry_run=True):
    cutoff = time.time() - days * 86400
    removed = 0
    scanned = 0

    # Use os.scandir for performance on large directories
    with os.scandir(path) as it:
        for entry in it:
            scanned += 1
            try:
                # Skip directories and symlinks explicitly
                if entry.is_symlink():
                    logging.debug("Skipping symlink: %s", entry.path)
                    continue
                if entry.is_dir():
                    logging.debug("Skipping directory: %s", entry.path)
                    continue

                # Use stat without following symlinks
                st = entry.stat(follow_symlinks=False)
                if st.st_mtime < cutoff:
                    logging.info("%s: older than %d days (mtime=%s)", entry.name, days,
                                 datetime.fromtimestamp(st.st_mtime).isoformat())
                    if not dry_run:
                        try:
                            os.remove(entry.path)
                            removed += 1
                            logging.info("Deleted: %s", entry.path)
                        except PermissionError:
                            logging.error("Permission denied: %s", entry.path)
                        except FileNotFoundError:
                            logging.warning("File disappeared before deletion: %s", entry.path)
                        except Exception as e:
                            logging.exception("Failed to delete %s: %s", entry.path, e)
                else:
                    logging.debug("Kept (recent): %s", entry.name)
            except PermissionError:
                logging.error("Cannot access entry (permission): %s", getattr(entry, 'path', entry))
            except FileNotFoundError:
                logging.warning("Entry disappeared during scan: %s", getattr(entry, 'path', entry))
    logging.info("Scan complete. Scanned=%d, Removed=%d (dry_run=%s)", scanned, removed, dry_run)

if __name__ == "__main__":
    p = argparse.ArgumentParser(description="Delete rotated log files older than N days")
    p.add_argument("dir", help="Directory to scan")
    p.add_argument("--days", type=int, default=7, help="Age in days to delete (default 7)")
    p.add_argument("--dry-run", action="store_true", default=False, help="Don't actually delete files")
    args = p.parse_args()

    if not os.path.isdir(args.dir):
        logging.error("Not a directory: %s", args.dir); sys.exit(2)

    delete_old_logs(args.dir, days=args.days, dry_run=args.dry_run)