Yubikey GPG info script

gpg-info.py

import subprocess
import re
import sys

class GPGInfo:

    @staticmethod
    def get_id():
        output = subprocess.check_output("/usr/bin/gpg2 --card-status --batch", shell=True)
        results = re.search('^Signature key.*: ([A-Z0-9 ]+)', output.decode(), re.MULTILINE)
        if results:
            return results.group(1).replace(' ', '')

    @staticmethod
    def export_public_key(_gpg_id):
        return subprocess.check_output("/usr/bin/gpg2 --armor --export " + _gpg_id, shell=True)

if __name__ == '__main__':
    gpg_id = GPGInfo.get_id()

    # Only output GPG key ID
    if len(sys.argv) == 2 and sys.argv[1] == 'id':
        print(id)
        sys.exit(0)

    # Output full information
    print("-----------------------")
    print("Yubikey GPG Information")
    print("-----------------------")
    print("")

    print("Key ID: " + gpg_id)
    print("Git ID: " + gpg_id[-16:])
    print("")

    print("Public Key:")
    print("")

    public_key = GPGInfo.export_public_key(gpg_id).decode()

    for line in public_key.split('\n'):
        print(line)