rawfile-localpv/rawfile_util.py
2020-04-26 01:37:23 +04:30

31 lines
620 B
Python

import json
from pathlib import Path
from consts import DATA_DIR
def img_dir(volume_id):
return Path(f"{DATA_DIR}/{volume_id}")
def meta_file(volume_id):
return Path(f"{img_dir(volume_id)}/disk.meta")
def metadata(volume_id):
try:
return json.loads(meta_file(volume_id).read_text())
except FileNotFoundError:
return {}
def img_file(volume_id):
return Path(metadata(volume_id)["img_file"])
def patch_metadata(volume_id, obj):
old_data = metadata(volume_id)
new_data = {**old_data, **obj}
meta_file(volume_id).write_text(json.dumps(new_data))
return new_data