- name: Set up repository
  become: true
  vars:
    # For some reason, if the key is in a weird format that requires
    # running `gpg --dearmor`, you must save it with the .gpg extension
    # instead of .asc. You can then completely skip the gpg step. Source:
    # https://stackoverflow.com/q/71585303/514684
    key_path: '{{ apt_repo_keys_dir }}/{{ apt_repo_name }}{{ apt_repo_key_dearmor | ternary(".gpg", ".asc") }}'
  block:
    - name: Create keys directory
      ansible.builtin.file:
        path: '{{ apt_repo_keys_dir }}'
        mode: '755'
        state: directory

    - name: 'Add key: {{ apt_repo_name }}'
      ansible.builtin.get_url:
        url: '{{ apt_repo_key_url }}'
        dest: '{{ key_path }}'
        mode: '644'
      notify: apt_repo_update

    - name: Get host distro
      ansible.builtin.setup:
        gather_subset: [distribution_release]

    # Not using the apt_repository module, since it _adds_ a new repository
    # in the .list file. That way, we can end up with an invalid repository
    # line.
    - name: 'Add repository: {{ apt_repo_name }}'
      ansible.builtin.template:
        src: repo.list.j2
        dest: '/etc/apt/sources.list.d/{{ apt_repo_name }}.list'
        owner: root
        group: root
        mode: '644'
      notify: apt_repo_update

    - name: Refresh apt repositories if necessary
      ansible.builtin.meta: flush_handlers