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#!/usr/bin/env python3
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
"""Delete stale assets from the download cache of the functional tests"""
import os
import stat
import sys
import time
from pathlib import Path
cache_dir_env = os.getenv('QEMU_TEST_CACHE_DIR')
if cache_dir_env:
cache_dir = Path(cache_dir_env, "download")
else:
cache_dir = Path(Path("~").expanduser(), ".cache", "qemu", "download")
if not cache_dir.exists():
print(f"Cache dir {cache_dir} does not exist!", file=sys.stderr)
sys.exit(1)
os.chdir(cache_dir)
for file in cache_dir.iterdir():
# Only consider the files that use a sha256 as filename:
if len(file.name) != 64:
continue
try:
timestamp = int(file.with_suffix(".stamp").read_text())
except FileNotFoundError:
# Assume it's an old file that was already in the cache before we
# added the code for evicting stale assets. Use the release date
# of QEMU v10.1 as a default timestamp.
timestamp = time.mktime((2025, 8, 26, 0, 0, 0, 0, 0, 0))
age = time.time() - timestamp
# Delete files older than half of a year (183 days * 24h * 60m * 60s)
if age > 15811200:
print(f"Removing {cache_dir}/{file.name}.")
file.chmod(stat.S_IWRITE)
file.unlink()
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