Wrapper to chain zimwriterfs with other tools on macOS, using docker image

zimwriterfs

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# vim: ai ts=4 sts=4 et sw=4 nu

import os
import sys
import subprocess

VOLUME_SRC = os.getcwd()  # "~/src/gutenberg"
VOLUME_DST = "/data"
DEBUG = False

CONTAINER_NAME = 'zimwriterfs'
IMAGE_NAME = 'openzim/zimwriterfs'
VOLUME_SRC = os.path.expanduser(VOLUME_SRC)
VOLUME_DST = os.path.expanduser(VOLUME_DST)


def run(arguments):
    if str is not bytes:  # python3
        return subprocess.run(arguments).returncode
    else:
        return subprocess.call(arguments)


def stop_container():
    run(['docker', 'stop', CONTAINER_NAME])


def remove_container():
    run(['docker', 'rm', '-f', CONTAINER_NAME])


def stop_and_remove_container():
    stop_container()
    remove_container()


def start_container(parameters):
    command = ['docker', 'run', '--name', CONTAINER_NAME, '-v',
               "{src}:{dst}".format(src=VOLUME_SRC, dst=VOLUME_DST),
               IMAGE_NAME, 'zimwriterfs'] + parameters
    if DEBUG:
        print(" ".join(command))
    return run(command)


def update_path(fpath):
    if not fpath.startswith('/'):
        return os.path.join(VOLUME_DST, fpath)
    return fpath


def main(arguments):
    if len(arguments) >= 7:
        main_arguments = arguments[:len(arguments) - 2]
        html_folder = arguments[len(arguments) - 2]
        zim_file = arguments[len(arguments) - 1]

        arguments = main_arguments + [update_path(html_folder),
                                      update_path(zim_file)]

    stop_and_remove_container()
    retcode = start_container(arguments)
    stop_and_remove_container()
    sys.exit(retcode)


if __name__ == '__main__':
    main(sys.argv[1:])