lektor-custom-render-template/lektor_render_template.py

# -*- coding: utf-8 -*-
""" Import lektor plugin stuff """
from lektor.pluginsystem import Plugin
from lektor.project import Project
from lektor.context import get_ctx

# pylint: disable=unused-argument
def generate_from_template(inputname, **options):
    """ Generate a File based on a Jinja2 Templated """
    # Setup Lektor Env
    project = Project.discover()
    env = project.make_env()

    # Setup CTX
    ctx = get_ctx()
    if ctx is not None:
        pad = ctx.pad
    else:
        pad = env.new_pad()

    # Prepare Variables
    rendered_title = f"Ansible Role: {inputname}"
    rendered_sizes = f"width=\"{int(132.5+(int(len(inputname)/2)*10))}\" height=\"20\""
    orange_box_width = str(int(5+len(inputname)*6))
    orange_position = str(int(50+(len(inputname)*6)))
    latest_element_x = str(int(1+(int(len(inputname)/2)*10)-1)-0.007)
    accent_02_multiplier = str(1+int(len(inputname)/2))

    # Create File
    file = f"assets/svg/{inputname}.svg"
    with open(file, 'w', encoding='UTF-8') as outputfile:
        outputfile.write(env.render_template(
          'galaxy.svg', pad=pad, this={
            'title': rendered_title,
            'name': inputname,
            "sizes": rendered_sizes,
            "orange_box_width": orange_box_width,
            "orange_position": orange_position,
            "accent03_x": latest_element_x,
            "bg_orange_x": latest_element_x,
            "accent_02_multiplier": accent_02_multiplier}))
    returnvalue =  f"/svg/{inputname}.svg"
    return returnvalue

class RenderTemplatePlugin(Plugin):
    """ Create Plugin and listen to Filter Keyword """
    name = 'lektor_render_template'
    description = 'Lektor plugin to generate files form filters.'

    def on_setup_env(self, **extra):
        """ Create Listener for Filter """
        self.env.jinja_env.filters['svg'] = generate_from_template