#!/usr/bin/env python3
"""
This module is intented to be a command line tool to recursively hardlink files. It should otherwise function in a similar way to cp -r.
"""

import argparse
import os
from pathlib import Path


def hardlink(src: Path, dst: Path):
    if src.is_dir():
        dst.mkdir(exist_ok=True)
        for child in src.iterdir():
            hardlink(child, dst / child.name)
    else:
        os.link(src, dst)


def main():
    parser = argparse.ArgumentParser(description="Recursively hardlink files")
    parser.add_argument("src", type=Path, help="source directory")
    parser.add_argument("dst", type=Path, help="destination directory")
    args = parser.parse_args()
    hardlink(args.src, args.dst)


if __name__ == "__main__":
    main()