- name: Ensure initial gerrit state
  import_playbook: ../service-review.yaml
  vars:
    gerrit_container_image: docker.io/opendevorg/gerrit:3.4

- hosts: "review:!disabled"
  name: "Prepare Gerrit for Upgrade"
  tasks:
    - name: Pause for a few seconds to give gerrit time to start
      wait_for:
        timeout: 30

    - name: Stop gerrit before we upgrade
      shell:
        cmd: docker-compose down
        chdir: /etc/gerrit-compose/

    - name: Backup config files
      block:
        - name: Find .config files
          find:
            paths: /home/gerrit2/review_site/etc
            patterns: '*.config'
          register: _config_files

        - name: 'Backup config file'
          copy:
            src: '{{ item }}'
            dest: '{{ item }}.pre-upgrade'
            remote_src: true
          loop: "{{ _config_files.files | map(attribute='path') | list }}"

- name: Perform gerrit upgrade
  import_playbook: ../service-review.yaml
  vars:
    gerrit_container_image: docker.io/opendevorg/gerrit:3.5
    gerrit_run_init: true

- hosts: "review:!disabled"
  name: "Post upgrade config check"
  tasks:
    - name: Diff config files
      shell: |
          diff -u {{ item }}.pre-upgrade {{ item }} | tee {{ item }}.diff
      loop: "{{ _config_files.files | map(attribute='path') | list }}"
      register: _diff_output

    - name: Check diffs
      fail:
        msg: 'Difference detected in file {{ item.item }} '
      when: item.rc != 0
      loop: '{{ _diff_output.results }}'