role-service-generic_machine/tasks/archlinux-pacman-hook.yml

# SPDX-License-Identifier: MIT
- name: 'If Arch Linux create dir to Git clone repo for pacman hook for ZFS dataset snapshots'
  when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
  ansible.builtin.file:
    path: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}'
    state: 'directory'

- name: 'If Arch Linux Git clone repo for pacman hook for ZFS dataset snapshots'
  when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
  ansible.builtin.git:
    repo: 'https://quico.space/quico-os-setup/zfs-pacman-hook'
    dest: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}'
    version: '{{ genma_pacman_hook_git_branch }}'

- name: 'If Arch Linux get list of checked out branches of repo for pacman hook for ZFS dataset snapshots'
  when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
  register: 'genma_pacman_hook_branches_actual'
  changed_when: false
  ansible.builtin.shell: |
    ls -1 '{{ genma_pacman_hook_git_base_dir }}'

- name: 'If Arch Linux remove unneeded branches of repo for pacman hook for ZFS dataset snapshots'
  when: 'item != genma_pacman_hook_git_branch and ansible_facts[''os_family''] | lower == ''archlinux'''
  loop_control:
    label: 'If unneeded delete branch ''{{ item }}'''
  loop: '{{ genma_pacman_hook_branches_actual.stdout_lines }}'
  ansible.builtin.file:
    path: '{{ genma_pacman_hook_git_base_dir }}/{{ item }}'
    state: 'absent'

- name: 'If Arch Linux create symlinks to repo for pacman hook for ZFS dataset snapshots'
  when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
  loop_control:
    loop_var: 'genma_pacman_hook_symlink'
    label: 'Create symlink to ''{{ genma_pacman_hook_symlink.target | basename }}'''
  loop:
    - { target: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}/pacman-zfs-snapshot.sh', symlink: '/usr/local/bin/pacman-zfs-snapshot' }
    - { target: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}/pacman-zfs-snapshot-install.hook', symlink: '/usr/share/libalpm/hooks/00-pacman-zfs-snapshot-install.hook' }
    - { target: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}/pacman-zfs-snapshot-remove.hook', symlink: '/usr/share/libalpm/hooks/00-pacman-zfs-snapshot-remove.hook' }
    - { target: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}/pacman-zfs-snapshot-upgrade.hook', symlink: '/usr/share/libalpm/hooks/00-pacman-zfs-snapshot-upgrade.hook' }
    - { target: '{{ genma_pacman_hook_git_base_dir }}/{{ genma_pacman_hook_git_branch }}/pacman-zfs-snapshot.conf', symlink: '/etc/pacman-zfs-snapshot.conf' }
  ansible.builtin.file:
    src: '{{ genma_pacman_hook_symlink.target }}'
    dest: '{{ genma_pacman_hook_symlink.symlink }}'
    state: 'link'
    force: true

- name: 'If Arch Linux get list of datasets'
  when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
  register: 'genma_pacman_hook_auto_snapshot_datasets_list'
  changed_when: false
  ansible.builtin.shell: |
    zfs list -H -o name

- name: 'If Arch Linux check current state of auto-snapshot marker on datasets'
  when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
  register: 'genma_pacman_hook_auto_snapshot_datasets_actual'
  changed_when: false
  loop_control:
    loop_var: 'dataset'
    label: 'Check if dataset ''{{ dataset }}'' is marked for auto-snapshotting'
  loop: '{{ genma_pacman_hook_auto_snapshot_datasets_list.stdout_lines }}'
  ansible.builtin.shell: |
    zfs get -H -o value space.quico:auto-snapshot '{{ dataset }}'

- name: 'If Arch Linux mark ZFS datasets for auto-snapshotting'
  when: 'genma_pacman_hook_auto_snapshot_datasets_actual[''results''][i][''stdout_lines''] | first != ''true'' and dataset in genma_pacman_hook_auto_snapshot_datasets and ansible_facts[''os_family''] | lower == ''archlinux'''
  loop_control:
    loop_var: 'dataset'
    index_var: 'i'
    label: 'If not marked for auto-snapshotting - {% if genma_pacman_hook_auto_snapshot_datasets_actual[''results''][i][''stdout_lines''] | first != ''true'' and dataset in genma_pacman_hook_auto_snapshot_datasets %}⚠️{% else %}✅{% endif %} expected {% if dataset in genma_pacman_hook_auto_snapshot_datasets %}yes{% else %} no{% endif %}/was actually {% if genma_pacman_hook_auto_snapshot_datasets_actual[''results''][i][''stdout_lines''] | first != ''true'' %} no{% else %}yes{% endif %} - mark ZFS dataset ''{{ dataset }}'''
  loop: '{{ genma_pacman_hook_auto_snapshot_datasets_list.stdout_lines }}'
  ansible.builtin.shell: |
    zfs set space.quico:auto-snapshot=true '{{ dataset }}'

- name: 'If Arch Linux unmark ZFS datasets for auto-snapshotting'
  when: 'genma_pacman_hook_auto_snapshot_datasets_actual[''results''][i][''stdout_lines''] | first == ''true'' and dataset not in genma_pacman_hook_auto_snapshot_datasets and ansible_facts[''os_family''] | lower == ''archlinux'''
  loop_control:
    loop_var: 'dataset'
    index_var: 'i'
    label: 'If incorrectly marked for auto-snapshotting - {% if genma_pacman_hook_auto_snapshot_datasets_actual[''results''][i][''stdout_lines''] | first == ''true'' and dataset not in genma_pacman_hook_auto_snapshot_datasets %}⚠️{% else %}✅{% endif %} expected {% if dataset not in genma_pacman_hook_auto_snapshot_datasets %} no{% else %}yes{% endif %}/was actually {% if genma_pacman_hook_auto_snapshot_datasets_actual[''results''][i][''stdout_lines''] | first == ''true'' %}yes{% else %} no{% endif %} - unmark ZFS dataset ''{{ dataset }}'''
  loop: '{{ genma_pacman_hook_auto_snapshot_datasets_list.stdout_lines }}'
  ansible.builtin.shell: |
    zfs inherit space.quico:auto-snapshot '{{ dataset }}'