---

- block:
  - name: "Is {{ mysql_custom_datadir }} present ?"
    stat:
      path: "{{ mysql_custom_datadir }}"
    check_mode: no
    register: mysql_custom_datadir_test

  - name: "read the real datadir"
    command: readlink -f /var/lib/mysql
    changed_when: False
    check_mode: no
    register: mysql_current_real_datadir_test
  tags:
    - mysql
  when: mysql_custom_datadir | length > 0

- block:
  - name: MySQL is stopped
    service:
      name: mysql
      state: stopped

  - name: Move MySQL datadir to {{ mysql_custom_datadir }}
    command: mv {{ mysql_current_real_datadir_test.stdout }} {{ mysql_custom_datadir }}
    args:
      creates: "{{ mysql_custom_datadir }}"

  - name: Symlink {{ mysql_custom_datadir }} to /var/lib/mysql
    file:
      src: "{{ mysql_custom_datadir }}"
      dest: '/var/lib/mysql'
      state: link

  - name: MySQL is started
    service:
      name: mysql
      state: started
  tags:
    - mysql
  when:
    - mysql_custom_datadir | length > 0
    - mysql_custom_datadir != mysql_current_real_datadir_test.stdout
    - not mysql_custom_datadir_test.stat.exists
    - not ansible_check_mode