create iso image

dir2iso.py

#!/usr/bin/env python3

from argparse import ArgumentParser
import os
import subprocess as sp

a = ArgumentParser(description='Generate ISO image')
a.add_argument('dir', help='image root')
a.add_argument('--output', '-o', default='-', help='xorriso output, stdout by default')
a.add_argument('--volid', '-v', help='iso volume id, directory name by default')
a = a.parse_args()

if a.volid is None:
    d = a.dir.rstrip('/')
    a.volid = os.path.basename(d)
    if a.volid in {'.', '..'}:
        a.volid = os.path.basename(os.path.abspath(d))

a.volid = a.volid.upper().replace('-', '_')

sp.run(['xorriso',
        '-outdev', a.output,
        '-joliet', 'on',
        '-compliance', 'joliet_long_names',
        '-acl', 'off',
        '-xattr', 'off',
        '-md5', 'on',
        '-uid', '0',
        '-gid', '0',
        '-volid', a.volid,
        '-map', a.dir, '/'], stdin=sp.DEVNULL)