SDカードから写真と動画をコピーするコマンド。LUMIXの拡張子に合わせてある。

media_backup.py

import os
import sys
import shutil
from pathlib import Path
from datetime import datetime
from typing import Optional

LOCAL_PIC_DIR = Path('path to local')
NAS_PIC_DIR = Path('path to nas')
LOCAL_MOV_DIR = Path('path to local')
NAS_MOV_DIR = Path('path to nas')


def get_datetime(p: Path) -> datetime:
    return datetime.fromtimestamp(p.stat().st_mtime)


def datetime_to_path(dt: datetime) -> str:
    return dt.strftime('%Y/%Y-%m-%d')


def make_day_path(p: Path) -> str:
    return datetime_to_path(get_datetime(p))


def copy_file(from_path: Path, to_root: Path) -> Optional[Path]:
    to_path = to_root / make_day_path(from_path) / from_path.name
    os.makedirs(to_path.parent, exist_ok=True)
    if to_path.is_file():
        print('Exists passed', from_path)
        return None

    shutil.copy2(from_path, to_path.parent)
    print('copied', from_path, to_path.parent)
    return to_path.parent



def main(in_dir: Path):
    output_dirs: set[Optional[Path]] = set()
    for photo_path in in_dir.rglob('*.RW2'):
        output_dirs.add(copy_file(photo_path, LOCAL_PIC_DIR))
        output_dirs.add(copy_file(photo_path, NAS_PIC_DIR))

    for movie_path in in_dir.rglob('*.MOV'):
        output_dirs.add(copy_file(movie_path, LOCAL_MOV_DIR))
        output_dirs.add(copy_file(movie_path, NAS_MOV_DIR))

    print('copy finished.')
    ods: list[Path] = [o
                       for o in output_dirs
                       if o is not None]
    ods.sort()
    for od in ods:
        print(od)


if __name__ == '__main__':
    if len(sys.argv) != 2:
        print('Please specific in dir path.')
        sys.exit(1)

    argument = Path(sys.argv[1])
    if not argument.is_dir():
        print('Please specific in dir path.')
        sys.exit(1)

    main(argument)