- name: Check if Tarsnap {{ tarsnap_version }} is installed
  shell: tarsnap --version | grep {{ tarsnap_version }} --color=never
  register: tarsnap_installed
  changed_when: "tarsnap_installed.stderr != ''"
  ignore_errors: yes
  tags:
    - dependencies

- name: Install dependencies for Tarsnap
  when: tarsnap_installed|failed
  apt: pkg={{ item }} state=installed
  with_items:
    - e2fslibs-dev
    - libssl-dev
    - zlib1g-dev
  tags:
    - dependencies

- name: Download the current tarsnap code signing key
  when: tarsnap_installed|failed
  get_url:
    url=https://www.tarsnap.com/tarsnap-signing-key.asc
    dest=/root/tarsnap-signing-key.asc

- name: Add the tarsnap code signing key to your list of keys
  when: tarsnap_installed|failed
  command:
    gpg --import tarsnap-signing-key.asc
    chdir=/root/

- name: Download tarsnap SHA file
  when: tarsnap_installed|failed
  get_url:
    url="https://www.tarsnap.com/download/tarsnap-sigs-{{ tarsnap_version }}.asc"
    dest="/root/tarsnap-sigs-{{ tarsnap_version }}.asc"

- name: Make the command that gets the current SHA
  when: tarsnap_installed|failed
  template:
    src=getSha.sh
    dest=/root/getSha.sh
    mode=0755

- name: Get the SHA256sum for this tarsnap release
  when: tarsnap_installed|failed
  command:
    ./getSha.sh
    chdir=/root
  register: tarsnap_sha

- name: Download Tarsnap source
  when: tarsnap_installed|failed
  get_url:
    url="https://www.tarsnap.com/download/tarsnap-autoconf-{{ tarsnap_version }}.tgz"
    dest="/root/tarsnap-autoconf-{{ tarsnap_version }}.tgz"
    sha256sum={{ tarsnap_sha.stdout_lines[0] }}

- name: Decompress Tarsnap source
  when: tarsnap_installed|failed
  unarchive: src=/root/tarsnap-autoconf-{{ tarsnap_version }}.tgz
             dest=/root copy=no
             creates=/root/tarsnap-autoconf-{{ tarsnap_version }}/COPYING

- name: Configure Tarsnap for local build
  when: tarsnap_installed|failed
  command: ./configure chdir=/root/tarsnap-autoconf-{{ tarsnap_version }} creates=/root/tarsnap-autoconf-{{ tarsnap_version }}/Makefile

- name: Build and install Tarsnap
  when: tarsnap_installed|failed
  command: make all install clean chdir=/root/tarsnap-autoconf-{{ tarsnap_version }} creates=/usr/local/bin/tarsnap

- name: Copy Tarsnap key file into place
  copy: src=decrypted_tarsnap.key dest=/decrypted/tarsnap.key owner=root group=root mode="600" force=no

- name: Create Tarsnap cache directory
  file: state=directory path=/usr/tarsnap-cache

- name: Install Tarsnap configuration file
  copy: src=tarsnaprc dest=/root/.tarsnaprc mode="644"

- name: Install Tarsnap backup handler script
  copy: src=tarsnap.sh dest=/root/tarsnap.sh mode="755"

- name: Install nightly Tarsnap-generations cronjob
  cron: name="Tarsnap backup" hour="3" minute="0" job="sh /root/tarsnap.sh >> /var/log/tarsnap.log"