def compile_theme(theme, target, *, zip_=False):
    """
    Compile a theme (i.e. directory of Jinja2 templates)

    theme: Path to directory with templates in

    target: Directory in which to store compiled templates

    zip_: Target is a zip file, rather than a directory
    """
    from jinja2 import Environment, FileSystemLoader
    env = Environment(loader=FileSystemLoader(theme))
    env.compile_templates(target, zip='deflated' if zip_ else None)
