---
#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# ROLE DESCRIPTION:
#   This role is to retrieve the override file from the backup tarball
#   required for the controller bootstrap.
#
- block:
  - name: Fail if backup_filename is not defined or set
    fail:
      msg: "Mandatory configuration parameter backup_filename is not defined or set."
    when: backup_filename is not defined or backup_filename is none

  - name: Fail if initial_backup_dir is not defined or set
    fail:
      msg: "Mandatory configuration parameter initial_backup_dir is not defined or set."
    when: initial_backup_dir is not defined or initial_backup_dir is none

  - name: Look for override backup file in the backup tarball
    shell: "tar -tf {{ initial_backup_dir }}/{{ backup_filename }} | grep '_override_backup.yml'"
    args:
      warn: false
    failed_when: false
    register: search_result

  - block:
    - name: Extract override file from backup tarball
      shell: >-
        tar -C {{ override_files_dir }} -xf {{ initial_backup_dir }}/{{ backup_filename }} --transform='s,.*/,,'
        {{ search_result.stdout_lines[0] }}
      args:
        warn: false

    - name: Prepare to rename override file
      set_fact:
        override_filename: "{{ (search_result.stdout_lines[0] | basename).split('_override_backup')[0] }}.yml"

    - name: Rename override file for bootstrap
      command: >-
        mv -f {{ override_files_dir }}/{{ (search_result.stdout_lines[0] | basename) }}
        {{ override_files_dir }}/{{ override_filename }}

    when: search_result.rc == 0

  - name: Fail if override file is missing
    fail:
      msg: >-
        Cannot find {{ initial_backup_dir }}/{{ backup_filename }}
        or the override file is missing in the backup tarball!
    when: search_result.rc != 0

  delegate_to: localhost