---
# Ubuntu.
- name: Add repository for OpenJDK 8 (Ubuntu 14).
  apt_repository: repo='ppa:openjdk-r/ppa'
  when:
    - ansible_distribution == "Ubuntu"
    - ansible_distribution_version == "14.04"

# Debian.
- name: Enable Backports repository (Debian 8).
  apt_repository:
    repo: 'deb http://ftp.debian.org/debian {{ ansible_distribution_release }}-backports main'
    state: present
    filename: "{{ ansible_distribution_release }}_backports"
  when: ansible_distribution == "Debian"

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

# See: http://unix.stackexchange.com/a/342469
- name: Install dependencies.
  apt:
    default_release: "{{ ansible_distribution_release }}-backports"
    name:
      - openjdk-8-jre-headless
      - ca-certificates-java
    state: present
  when: ansible_distribution == "Debian"

# Red Hat.
- name: Set the java_packages variable (RedHat).
  set_fact:
    java_packages:
      - java-1.8.0-openjdk
  when: ansible_os_family == 'RedHat'

# Ubuntu.
- name: Set the java_packages variable (Ubuntu).
  set_fact:
    java_packages:
      - openjdk-8-jdk
  when: ansible_distribution == 'Ubuntu'

# Debian.
- name: Set the java_packages variable (Debian).
  set_fact:
    java_packages:
      - openjdk-8-jdk
  when: ansible_distribution == 'Debian'