Jinja Templating Script

render_jinja.py

#!/usr/bin/env python3

"""Usage: render_jinja.py <template_file> <parameters_file>

Parameters file must be yaml encoded. Use Jinja2 to reference in template.

Options: -h
"""
from docopt import docopt
from jinja2 import Environment, FileSystemLoader
import yaml

if __name__ == '__main__':
    args = docopt(__doc__)

def render_template(template_file, parameters_file):
    with open(parameters_file) as yaml_file:
        parameters = yaml.load(yaml_file)
    env = Environment(loader=FileSystemLoader('.'))
    template = env.get_template(template_file)
    return template.render(parameters)

print(render_template(args['<template_file>'], args['<parameters_file>']))