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23 lines
696 B
23 lines
696 B
import os
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import errno
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from typing import Dict, Tuple, Optional
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_cached_attributes: Dict[Tuple, Optional[bytes]] = {}
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def getxattr(path: str, attr_name: str) -> Optional[bytes]:
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key = (path, attr_name)
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if key not in _cached_attributes:
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try:
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response = os.getxattr(path, attr_name)
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except OSError as e:
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# ENODATA means attribute hasn't been set
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if e.errno == errno.ENODATA:
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response = None
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else:
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raise
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_cached_attributes[key] = response
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return _cached_attributes[key]
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def setxattr(path: str, attr_name: str, attr_value: bytes) -> None:
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_cached_attributes.pop((path, attr_name), None)
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return os.setxattr(path, attr_name, attr_value)
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