matrix-docker-ansible-deploy/roles/custom/matrix-email2matrix/tasks/validate_config.yml

---

- name: Fail if no Email2Matrix mappings
  ansible.builtin.fail:
    msg: >
      You need to define at least one mapping in `matrix_email2matrix_matrix_mappings` for enabling Email2Matrix.
  when: "matrix_email2matrix_matrix_mappings | length == 0"

- name: Fail if required Email2Matrix settings not defined
  ansible.builtin.fail:
    msg: >-
      You need to define a required configuration setting (`{{ item.name }}`).
  when: "item.when | bool and vars[item.name] == ''"
  with_items:
    - {'name': 'matrix_email2matrix_container_network', when: true}

- name: (Deprecation) Catch and report renamed Email2Matrix variables
  ansible.builtin.fail:
    msg: >-
      The variable `{{ item.old }}` is deprecated. Please use `{{ item.new }}` instead.
  when: "item.old in vars"
  with_items:
    - {'old': 'matrix_email2matrix_docker_image_name_prefix', 'new': 'matrix_email2matrix_docker_image_registry_prefix'}