79 lines
3.1 KiB
Python
79 lines
3.1 KiB
Python
"""Cleanup old entries in the database and file system."""
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import shutil
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import time
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from datetime import datetime, timezone
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from os import getenv
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from pathlib import Path
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from .models import Image, Submission, db
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RESULT_FOLDER = Path("./results")
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MAX_PENDING_TIME = int(getenv("MAX_PENDING_TIME", "600")) # 10 minutes by default
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MAX_STORE_TIME = int(getenv("MAX_STORE_TIME", "259200")) # 3 days by default
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def cleanup_old_entries() -> None:
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"""
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Clean up old and incomplete entries from the database and file system.
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This function performs two main cleanup operations:
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1. Submission cleanup:
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- Deletes submissions with "pending" or "running" status that have exceeded
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the maximum allowed processing time (MAX_PENDING_TIME).
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- Deletes completed submissions ("done" status) that have missing or buggy
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results (results.json file not found).
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2. Image cleanup:
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- Deletes images older than MAX_STORE_TIME along with all associated
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submissions and their result folders.
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- Deletes orphaned images (with no submissions) older than MAX_PENDING_TIME
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and removes their associated result folders from the file system.
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All database changes are committed at the end of the operation.
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Returns:
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None
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"""
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now = time.time()
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for submission in Submission.query.all(): # type: ignore
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if (
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submission.status in ("pending", "running") # type: ignore
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and now - submission.date > MAX_PENDING_TIME # type: ignore
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):
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# Processing took too long, delete
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db.session.delete(submission) # pylint: disable=no-member
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elif submission.status == "done": # type: ignore
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# Search for buggy results, delete
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result_path = (
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RESULT_FOLDER / str(submission.image_hash) / str(submission.hash)
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)
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result_file = result_path / "results.json"
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if not result_file.exists():
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db.session.delete(submission) # pylint: disable=no-member
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shutil.rmtree(result_path)
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# Delete "old" images
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for img in Image.query.all(): # type: ignore
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if img.last_submission_date.tzinfo is None:
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img_date = img.last_submission_date.replace(tzinfo=timezone.utc)
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else:
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img_date = img.last_submission_date
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delay = datetime.now(timezone.utc) - img_date
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img_fold = RESULT_FOLDER / img.hash
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if delay.total_seconds() > MAX_STORE_TIME:
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for s in img.submissions:
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db.session.delete(s) # pylint: disable=no-member
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if img_fold.exists():
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shutil.rmtree(img_fold) # type: ignore
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db.session.delete(img) # pylint: disable=no-member
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# Delete Images with missing submission
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if len(img.submissions) == 0 and delay.total_seconds() > MAX_PENDING_TIME:
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if img_fold.exists():
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shutil.rmtree(img_fold) # type: ignore
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db.session.delete(img) # pylint: disable=no-member
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db.session.commit() # pylint: disable=no-member
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