---
# Don't neovim packages because they are all behind, even Debian unstable.
# Instead use the latest pre-build Linux package from GitHub, then stow them
# into /usr/local.

- name: remove apt package
  become: true
  apt:
    name: neovim
    state: absent

- name: install gnu stow for managing tar.gz package
  become: true
  apt:
    name:
      - stow
    state: latest

- name: install python provider pip package
  pip:
    name: pynvim
    state: latest

- name: stat installed executable
  stat:
    path: /usr/local/bin/nvim
  register: nvim

- name: get installed version
  when: nvim.stat.exists
  command: nvim --version
  register: nvim_version
  changed_when: false

- when: nvim.stat.exists
  set_fact:
    installed_version: '{{nvim_version.stdout_lines[0][5:]}}'

- name: get latest version
  uri:
    url: https://api.github.com/repos/neovim/neovim/releases/latest
    headers: '{{github_auth_headers}}'
  register: latest

- set_fact:
    install_required:
      '{{installed_version is not defined or
         installed_version != latest.json.tag_name}}'
    asset_query: '[?contains(name, `nvim-linux64.tar.gz`)]'
    package_dir: '/usr/local/lib/nvim'
- set_fact:
    uninstall_required: '{{nvim.stat.exists and install_required}}'
    asset: '{{latest.json.assets | json_query(asset_query)}}'
    package_path: '{{package_dir}}/{{latest.json.name}}'

- name: uninstall old package from /usr/local
  when: uninstall_required
  become: true
  command:
    cmd: 'stow --delete --target /usr/local .'
    chdir: '{{package_dir}}/nvim-linux64'

- name: remove old package
  become: true
  when: uninstall_required
  file:
    path: '{{package_dir}}/nvim-linux64'
    state: absent

- name: create package directory
  become: true
  file:
    path: '{{package_dir}}'
    state: directory

- name: download package archive
  when: install_required
  become: true
  get_url:
    url: '{{asset[0].browser_download_url}}'
    dest: '{{package_path}}'
  environment: '{{proxy_environment}}'

- name: extract package archive
  when: install_required
  become: true
  unarchive:
    src: '{{package_path}}'
    dest: '{{package_dir}}'

- name: remove downloaded archive
  when: install_required
  become: true
  file:
    path: '{{package_path}}'
    state: absent

- name: move man to share/man
  when: install_required
  become: true
  command:
    argv:
      - mv
      - '{{package_dir}}/nvim-linux64/man'
      - '{{package_dir}}/nvim-linux64/share'

- name: install package to /usr/local
  when: install_required
  become: true
  command:
    cmd: 'stow --target /usr/local .'
    chdir: '{{package_dir}}/nvim-linux64'

- include_tasks: Unix.yaml