decrypt gnu pass files

pass decryptor.py

'''Decrypt gnu pass files.
Simply give it the location of the directory storing all the .gpg files and it will dump the contents into a file.
'''
from sys import exit
from argparse import ArgumentParser
from pathlib import Path
from gnupg import GPG
import logging

parser = ArgumentParser()
parser.add_argument('-d','--dir', default='~/.password-store', required=False, metavar='dir', help='pass directory where all the .gpg files are stored, default is ~/.password-store' )
parser.add_argument('-o','--out', default='decrypted.txt', required=False, help='File to output data. Default is decrypted.txt')
parser.add_argument('-n', action='store_true', help='Do not dump contents to file. Print to stdout')
parser.add_argument('-f', '--force', action='store_true', help='Force overwrite output file')
parser.add_argument('-v', action='count', default=0, help='Verbose, for more verbosity do -vv')

args = parser.parse_args()

#Setup logging
if args.v == 0:
    logging.basicConfig(level=logging.ERROR)
elif args.v == 1:
    logging.basicConfig(level=logging.INFO)
else:
    logging.basicConfig(level=logging.DEBUG)

logging.info(args)

#Find password-store
logging.debug(f'Opening pass storage directory: {args.dir}')
store = Path(args.dir).expanduser()
if not store.exists():
    logging.error(f'{store.as_posix()} does not exist')

#Check if output file exists and is writable, then open it
output_file = Path(args.out).expanduser()
if output_file.exists() and not args.force and input(f'{output_file.as_posix()} exists, overwrite? [y/N]').lower() != 'y':
    exit(0)
logging.debug(f'Opening {args.out}')
try:
    output = output_file.open('w')
except e:
    logging.error(f'Failed to open file {output_file.as_posix()}:',e)

gpg = GPG()
def unpack_folder(pathname):
    if pathname.is_file() and pathname.name != '.gpg-id':
        logging.debug(f'Decrypting {pathname}...')
        decrypted = gpg.decrypt(pathname.read_bytes())
        text_out = '{}\n{}\n'.format( pathname.as_posix(),  decrypted)
        if not args.n:
            logging.info(f'Decrypting {pathname.as_posix()}')
            output.write(text_out)
            logging.debug(f'Wrote:\n{text_out}')
        else:
            print(text_out)
    elif pathname.is_dir():
        for file in pathname.iterdir():
            unpack_folder(file)

def main():
    unpack_folder(store)

if __name__ == '__main__':
    main()