Convert a Grav pages tree to a Kirby content tree

script.py

# pip install frontmatter
# python script.py

import glob
import os
import pathlib
import re
import shutil

import frontmatter # https://pypi.org/project/python-frontmatter/

reg_exp = r"([\d]{2}\.)|([\d]{4}-[\d]{2}-[\d]{2}-)"


def convert_path(match_obj):
    # normal page name
    if match_obj.group(1) is not None:
        return f"{match_obj.group(1).replace('.', '')}_"
    # date page name
    if match_obj.group(2) is not None:
        return f"{match_obj.group(2).replace('-', '')}_"


def get_new_content(path):
    with open(path) as f:
        grav_content = frontmatter.load(f)

    kirby_content = ""

    for k in grav_content.keys():
        kirby_content += f"{k.capitalize()}: {grav_content[k]}\n----\n"

    if "date" not in grav_content.keys():
        date_match = re.search(r"[\d]{4}-[\d]{2}-[\d]{2}", str(path))

        if date_match:
            kirby_content += f"Date: {date_match[0]}\n----\n"

    kirby_content += f"Text:\n{grav_content}"

    return kirby_content


for filename in glob.iglob("pages/**/*.md", recursive=True):
    post_path = pathlib.Path(filename)

    new_path = re.sub(reg_exp, convert_path, str(post_path.parent))
    new_path = new_path.replace("pages", "content")
    new_path = pathlib.Path(new_path)

    save_path = new_path / "billet.txt"
    os.makedirs(os.path.dirname(save_path), exist_ok=True)

    files = os.listdir(post_path.parent)

    for fname in files:
        if not fname.endswith(".md"):
            shutil.copy2(post_path.parent / fname, new_path)

    print("<>", new_path)

    new_file_content = get_new_content(post_path)

    with open(save_path, "w+") as w:
        w.write(new_file_content)