---
- hosts: all

  pre_tasks:
    - name: Ensure build dependencies are installed (RedHat).
      yum: 'name="{{ item }}" state=present'
      with_items:
        - "@Development tools"
        - tar
        - unzip
      when: ansible_os_family == 'RedHat'

    - name: Update apt cache.
      apt: update_cache=yes cache_valid_time=600
      when: ansible_os_family == 'Debian'
      changed_when: false

    - name: Ensure build dependencies are installed (Debian).
      apt: 'name="{{ item }}" state=installed'
      with_items:
        - build-essential
        - unzip
        - tar
        - sudo
      when: ansible_os_family == 'Debian'

  roles:
    - role_under_test