---
- name: Install the cran repository key
  apt_key: id=E084DAB9 keyserver=keyserver.ubuntu.com state=present
  register: update_apt_cache
  when: r_install_cran_repo
  tags:
    - r_software
    - r_repo

- name: Install the cran repository definition
  apt_repository: repo='deb http://cran.rstudio.com/bin/linux/ubuntu {{ ansible_distribution_release }}/' state=present
  register: update_apt_cache
  when: r_install_cran_repo
  tags:
    - r_software
    - r_repo

- name: Install the cran repository definition
  apt_repository: repo='deb {{ r_cran_mirror_site }}/bin/linux/ubuntu {{ ansible_distribution_release }}/' state=absent
  register: update_apt_cache
  when: not r_install_cran_repo
  tags:
    - r_software
    - r_repo

- name: Update the apt cache if needed
  apt: update_cache=yes
  when: ( update_apt_cache | changed )
  tags:
    - r_software
    - r_repo

- name: Install the R base packages
  apt: pkg={{ item }} state={{ r_packages_state }}
  with_items: r_base_packages_list
  tags:
    - r_software
    - r_pkg

- name: Install the R plugins from the ubuntu repo
  apt: pkg={{ item }} state={{ r_packages_state }}
  with_items: r_plugins_packages_list
  tags:
    - r_software
    - r_pkg

- name: Install R plugins from the cran binaries repo
  command: >
    Rscript --slave --no-save --no-restore-history -e "if (! ('{{ item }}' %in% installed.packages()[,'Package'])) { install.packages(pkgs='{{ item }}', repos=c('{{ r_cran_mirror_site }}/')); print('Added'); } else { print('Already installed'); }"
  register: install_plugins_result
  failed_when: "install_plugins_result.rc != 0 or 'had non-zero exit status' in install_plugins_result.stderr"
  changed_when: "'Added' in install_plugins_result.stdout"
  with_items: r_plugins_list_to_install
  tags:
    - r_software
    - r_pkg