- name: Make sure the role is run on Debian or Ubuntu
  fail:
    msg: "This role supports Debian and Ubuntu distributions only"
  when: ansible_distribution not in ["Debian", "Ubuntu"]

- name: Make sure required variables are set
  assert:
    that:
      - convert_diskimage_source_image is defined
      - convert_diskimage_target_image is defined
      - convert_diskimage_target_formats is defined

- name: Make sure target formats are supported
  assert:
    that: zj_format in convert_diskimage_supported_formats
  loop: "{{ convert_diskimage_target_formats }}"
  loop_control:
    loop_var: zj_format

- name: Install qemu tools
  become: true
  package:
    state: present
    name: qemu-utils

- name: Convert image to the given formats
  command: >
    qemu-img convert {{ convert_diskimage_source_image }}
    -O {{ zj_format }} {{ convert_diskimage_target_image }}.{{ zj_format }}
  loop: "{{ convert_diskimage_target_formats }}"
  loop_control:
    loop_var: zj_format