backup.py 文件源码

def copystat(cls, src, dest, copy_own=True, copy_xattr=True):
        """
        Copy all stat info (mode bits, atime, mtime, flags) from `src` to
        `dest`.  If `copy_own=True`, the uid and gid are also copied.
        If `copy_xattr=True`, the extended attributes are also copied
        (only available on Linux).
        """
        st = os.stat(src)
        mode = stat.S_IMODE(st.st_mode)
        os.chmod(dest, mode=mode)
        os.utime(dest, ns=(st.st_atime_ns, st.st_mtime_ns))
        if hasattr(st, "st_flags"):
            os.chflags(dest, flags=st.st_flags)
        if copy_own:
            os.chown(dest, uid=st.st_uid, gid=st.st_gid)
        if copy_xattr:
            cls.copyxattr(src, dest)