---
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Get md5sum of local builder files
  shell: |
    cat /etc/swift/ring_build_files/*.builder 2>/dev/null | md5sum | cut -d " " -f1
  changed_when: false
  register: md5sum

- name: Get empty md5sum
  shell: |
    echo -n | md5sum | cut -d " " -f1
  changed_when: false
  register: empty_md5sum

# Fail if the remote hosts builder files is not empty AND
# does not match the md5sum of the local host.
- name: Verify md5sum of builder files
  fail:
    msg: >
      "The builder files on the remote host {{ item }}:{{ hostvars[item]['builder_md5sum'] }}
       do not match {{ inventory_hostname }}:{{ md5sum.stdout }}
       and are not empty on the remote host"
  when:
    - hostvars[item] is defined
    - hostvars[item]['builder_md5sum'] is defined
    - hostvars[item]['builder_md5sum'] != empty_md5sum.stdout
    - hostvars[item]['builder_md5sum'] != md5sum.stdout
  with_items: "{{ groups['swift_all'] + groups['swift_remote_all'] }}"