- name: Check for existing dotfiles repository
  ansible.builtin.stat:
    path: "{{ dotfiles_git_dir }}/HEAD"
  register: dotfiles_repo_head
  changed_when: false # this never applies changes
  when: dotfiles_do_backup

- name: Clone into /tmp
  ansible.builtin.git:
    dest: "{{ dotfiles_tmp_dir }}"
    repo: "{{ dotfiles_repo_source }}"
    version: "{{ dotfiles_repo_version }}"
  when: not dotfiles_repo_head.stat.exists


- name: Get list of dotfiles
  ansible.builtin.command:
    chdir: "{{ dotfiles_tmp_dir }}"
    cmd: git ls-files
  register: dotfiles_lsfiles # needs to be used with .stdout_lines for iteratio
  when: not dotfiles_repo_head.stat.exists

- name: Back up dotfiles that would be overwritten by checkout
  ansible.builtin.command:
    cmd: "mv {{ dotfiles_dest }}/{{ item }} {{ dotfiles_dest }}/{{ item }}.bak"
  args:
    creates: "{{ dotfiles_dest }}/{{ item }}.bak"
    removes: "{{ dotfiles_dest }}/{{ item }}"
  with_items: "{{ dotfiles_lsfiles.stdout_lines }}"
  when: not dotfiles_repo_head.stat.exists

- name: Initialize dotfiles repository in user home
  ansible.builtin.git:
    bare: true
    update: true
    force: true # this is okay here because we backed up already existing files
    dest: "{{ dotfiles_git_dir }}"
    repo: "{{ dotfiles_repo_source }}"
    version: "{{ dotfiles_repo_version }}"

# TODO improve these cmd tasks, i dont really know how though
# i dont know why this checkout is necessary, was expecting the previous task to do this
- name: Configure git repository
  ansible.builtin.command:
    cmd: |
      {{ dotfiles_alias }}
      checkout {{ dotfiles_repo_version }}
      --force

- name: Configure git repository
  ansible.builtin.command:
    cmd: |
      {{ dotfiles_alias }}
      config status.showUntrackedFiles no