templater.py

#!/usr/bin/env python3
import logging
import os.path
import sys

import jinja2

import serialize

logging.basicConfig(stream=sys.stderr, level=logging.INFO)

TEMPLATE_PATH = os.path.dirname(os.path.realpath(__file__))
LOG = logging.getLogger(__name__)


def render_template(template_filename, data):
    env = jinja2.Environment(
        loader=jinja2.FileSystemLoader(TEMPLATE_PATH),
        block_start_string=r"\code{",
        block_end_string="}",
        variable_start_string=r"\jvar{",
        variable_end_string="}",
        comment_start_string=r"\#{",
        comment_end_string="}",
        line_statement_prefix="%!!",
        line_comment_prefix="%#",
        trim_blocks=True,
        autoescape=False,
    )
    return env.get_template(template_filename).render(data)


def ingest_data(fo):
    data = {}
    for line in fo.readlines():
        data.update(serialize.deserialize(line))
    return data


if __name__ == "__main__":
    data = ingest_data(sys.stdin)
    print(render_template(sys.argv[1], data))