/home/zuul/src/opendev.org/openstack/ansible-role-python_venv_build/tasks/python_venv_preflight.yml
---
# Copyright 2018, 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: Verify that venv_install_destination_path has been provided
  fail:
    msg: |
      The variable venv_install_destination_path is required and
      has not been set.
  when:
    - venv_install_destination_path is not defined

- name: Collect the version of virtualenv
  shell: |
    virtualenv --version 2>/dev/null || echo 'none'
  args:
    executable: /bin/bash
  changed_when: false
  failed_when: false
  register: _virtualenv_version

- name: Fail when required virtualenv version is not present
  fail:
    msg: >-
      The required virtualenv version is not present.
      The minimum version of 1.10 is required, but
      {{ _virtualenv_version.stdout }} is installed.
  when:
    - ((_virtualenv_version.stdout | trim) == 'none') or
      ((_virtualenv_version.stdout | trim) is version('1.10', '<'))

- name: Set extra virtualenv parameters
  set_fact:
    _venv_create_extra_options: >-
      {{ ((_virtualenv_version.stdout | trim) is version('14.0.0', '<')) | ternary('--never-download', '--no-download') }}
      {{ ((_virtualenv_version.stdout | trim) is version('1.7.0', '<')) | ternary('--no-site-packages', '') }}