create md5+sha1 digests for maven purposes

digest.py

#!/usr/local/bin/python3


import click
import hashlib
import os


@click.command()
@click.argument('filename')
def write_digests(filename):
    if not os.path.exists(filename):
        print('File {} not found'.format(filename))
        return -1
    
    file = open(filename, 'rb').read()

    md5 = hashlib.md5()
    md5.update(file)
    with open('{}.md5'.format(filename), 'w') as md5file:
        md5file.write(md5.hexdigest())

    sha1 = hashlib.sha1()
    sha1.update(file)
    with open('{}.sha1'.format(filename), 'w') as sha1file:
        sha1file.write(sha1.hexdigest())


if __name__ == '__main__':
    write_digests()