To find directory path from GFID. Usage: python dirname_from_gfid.py <BRICK_ROOT> <GFID>

dirname_from_gfid.py

#!/usr/bin/env python
import os
import sys

ROOT_GFID = "00000000-0000-0000-0000-000000000001"


def symlink_gfid_to_path(brick, gfid):
    """
    Each directories are symlinked to file named GFID
    in .glusterfs directory of brick backend. Using readlink
    we get PARGFID/basename of dir. readlink recursively till
    we get PARGFID as ROOT_GFID.
    """
    if gfid == ROOT_GFID:
        return ""

    out_path = ""
    while True:
        path = os.path.join(brick, ".glusterfs", gfid[0:2], gfid[2:4], gfid)
        path_readlink = os.readlink(path)
        pgfid = os.path.dirname(path_readlink)
        out_path = os.path.join(os.path.basename(path_readlink), out_path)
        if pgfid == "../../00/00/%s" % ROOT_GFID:
            break
        gfid = os.path.basename(pgfid)
    return out_path


if __name__ == "__main__":
    brick_path = sys.argv[1]
    gfid = sys.argv[2]
    print (symlink_gfid_to_path(brick_path, gfid))