---
- name: Ensure ansible_facts used by role
  setup:
    gather_subset: "{{ __kernel_settings_required_facts_subsets }}"
  when: __kernel_settings_required_facts |
    difference(ansible_facts.keys() | list) | length > 0

- name: Determine if system is ostree and set flag
  when: not __kernel_settings_is_ostree is defined
  block:
    - name: Check if system is ostree
      stat:
        path: /run/ostree-booted
      register: __ostree_booted_stat

    - name: Set flag to indicate system is ostree
      set_fact:
        __kernel_settings_is_ostree: "{{ __ostree_booted_stat.stat.exists }}"

- name: Determine if system is transactional update and set flag
  when: not __kernel_settings_is_transactional is defined
  block:
    - name: Check if transactional-update exists in /sbin
      stat:
        path: /sbin/transactional-update
      register: __transactional_update_stat

    - name: Set flag if transactional-update exists
      set_fact:
        __kernel_settings_is_transactional: "{{ __transactional_update_stat.stat.exists }}"

- name: Set platform/version specific variables
  include_vars: "{{ lookup('first_found', ffparams) }}"
  vars:
    ffparams:
      files:
        - "{{ ansible_facts['distribution'] }}_\
          {{ ansible_facts['distribution_version'] }}.yml"
        - "{{ ansible_facts['distribution'] }}_\
          {{ ansible_facts['distribution_major_version'] }}.yml"
        - "{{ ansible_facts['distribution'] }}.yml"
        - "{{ ansible_facts['os_family'] }}.yml"
        - "default.yml"
      paths:
        - "{{ role_path }}/vars"
