#!/usr/bin/env python3
# Modified from mako-render by gdb.
# TODO: set the lookup path dynamically.

import sys
import argparse

from mako.template import Template
from mako.lookup import TemplateLookup


def render(data):
    lookup = TemplateLookup(['.', '/etc/apache2/conf.invirt'])
    return Template(data, lookup=lookup).render()

def main():
    parser = argparse.ArgumentParser(description='Render mako template')
    parser.add_argument('filename', nargs='?', default=None)

    args = parser.parse_args()

    if args.filename == "-" or args.filename is None:
        fo = sys.stdin
    else:
        fo = open(args.filename)

    data = fo.read()
    print(render(data))


if __name__ == "__main__":
    main()