45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
from __future__ import annotations
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import hashlib
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import os
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from typing import Tuple
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def stat_triplet_from_stat(st: os.stat_result) -> Tuple[str, str, str]:
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"""Return (owner, group, mode) for an existing stat result."""
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mode = oct(st.st_mode & 0o7777)[2:].zfill(4)
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import grp
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import pwd
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try:
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owner = pwd.getpwuid(st.st_uid).pw_name
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except KeyError:
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owner = str(st.st_uid)
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try:
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group = grp.getgrgid(st.st_gid).gr_name
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except KeyError:
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group = str(st.st_gid)
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return owner, group, mode
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def file_md5(path: str) -> str:
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"""Return hex MD5 of a file.
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Used for Debian dpkg baseline comparisons.
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"""
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h = hashlib.md5() # nosec
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with open(path, "rb") as f:
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for chunk in iter(lambda: f.read(1024 * 1024), b""):
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h.update(chunk)
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return h.hexdigest()
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def stat_triplet(path: str) -> Tuple[str, str, str]:
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"""Return (owner, group, mode) for a path.
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owner/group are usernames/group names when resolvable, otherwise numeric ids.
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mode is a zero-padded octal string (e.g. "0644").
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"""
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return stat_triplet_from_stat(os.stat(path, follow_symlinks=True))
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