maxhq

#!/bin/bash

# DESCRIPTION
#   This script migrates from "apt-key" managed keys to "[signed-by=/usr/share/keyrings/...]":
#    - loop through all lists in /etc/apt/sources.list.d
#      - read all lines with "deb..." that do not contain "[signed-by=]"
#      - download the GPG signature from the URL
#        - read the key ID from the signature
#        - download and saves the key using gpg
#      - add "[signed-by=/usr/share/keyrings/...]" to the "deb..." line