Convert .adoc file to PDF using AsciiDoctor

adoc.py

#!/usr/bin/env python3
"""
Convert .adoc files to .pdf.

Periodically check for updated tags:
    https://hub.docker.com/r/asciidoctor/docker-asciidoctor/tags
"""
import sys
import os
from subprocess import check_output
from os.path import splitext, basename, abspath, dirname, join

pdf_cmd = 'sudo docker run -it --rm -v {0}:/documents asciidoctor/docker-asciidoctor:1.24 asciidoctor-pdf -a pdf-theme=default-with-fallback-font -- /documents/{1}'
html_cmd = 'sudo docker run -it --rm -v {0}:/documents asciidoctor/docker-asciidoctor:1.24 asciidoctor /documents/{1}'

def ascii_doctor(cmd, path, source, dest):
    user = os.getenv('USER')
    check_output(cmd.format(path, source), shell=True)
    check_output(f'sudo chown {user} {dest}', shell=True)
    check_output(f'sudo chgrp {user} {dest}', shell=True)
    print(f'created {dest}')

def to_pdf(f):
    base = basename(f)
    path = abspath(dirname(f))
    pdf = splitext(base)[0] + '.pdf'
    html = splitext(base)[0] + '.html'
    pdf_out = join(path, pdf)
    html_out = join(path, html)

    ascii_doctor(pdf_cmd, path, base, pdf_out)
    ascii_doctor(html_cmd, path, base, html_out)

def main():
    files = sys.argv[1:]
    for file in files:
        if not (file.endswith('.adoc') or file.endswith('.md')):
            continue
        to_pdf(file)

if __name__ == '__main__':
    main()