Move photo from one tree to another in a git repository

movephotos.py

#!/usr/bin/python3.3

import os


NEWDIR = '/home/akaihol/Kuvat_'
OLDDIR = '/media/akaihol/tasku/Valokuvat'


def get_file_fingerprint(path):
    return os.path.getsize(path), os.path.basename(path)


def scan_paths(root_directory):
    new_paths = {}
    for root, _dirs, files in os.walk(root_directory):
        for filename in files:
            absolute_path = os.path.join(root, filename)
            fingerprint = get_file_fingerprint(absolute_path)
            relative_path = os.path.relpath(absolute_path, root_directory)
            if not relative_path.startswith('.git/'):
                new_paths[fingerprint] = relative_path
                print(relative_path)
    return new_paths


def move_to_new_path(from_path, to_path):
    print('git mv', from_path, to_path)


def main():
    new_paths = scan_paths(NEWDIR)
    old_paths = scan_paths(OLDDIR)
    for fingerprint, path in old_paths.items():
        if fingerprint in new_paths and new_paths[fingerprint] != path:
            move_to_new_path(path, new_paths[fingerprint])


if __name__ == '__main__':
    main()