diffdir.py

#!/usr/bin/env python
"""
Pure Python stdlib directory comparison by filename
"""
from pathlib import Path
import filecmp
from argparse import ArgumentParser


def diff_dir(path1: Path, path2: Path):
    path1 = Path(path1).expanduser()
    path2 = Path(path2).expanduser()

    if path1.samefile(path2):
        raise OSError(f"you are comparing {path1} with itself!")

    diff = filecmp.dircmp(path1, path2)  # type: ignore
    print("\n".join(diff.diff_files), end="")  # type: ignore
    print("\n".join(diff.left_only), end="")  # type: ignore
    print("\n".join(diff.right_only), end="")  # type: ignore
    # %% fix exit prompt position
    if any([diff.diff_files, diff.left_only, diff.right_only]):
        print()


def main():
    p = ArgumentParser()
    p.add_argument("path1", help="first path to compare")
    p.add_argument("path2", help="second path to compare")
    P = p.parse_args()

    diff_dir(P.path1, P.path2)


if __name__ == "__main__":
    main()