---
# 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_destination_path has been provided
  fail:
    msg: |
      The variable venv_destination_path is required and
      has not been set
  when:
    - venv_destination_path is not defined

- name: Verify that venv_reuse_enable and venv_reuse_build_only are not interfering with each other
  fail:
    msg: |
      If venv_reuse_build_only is enabled, then venv_reuse_enable must also
      be enabled.
      The variable venv_reuse_enable is set to {{ venv_reuse_enable }}.
      The variable venv_reuse_build_only is set to {{ venv_reuse_build_only }}.
  when:
    - venv_reuse_build_only | bool
    - not venv_reuse_enable | bool

- name: Ensure that venv_reuse_download_path exists on the deployment host
  file:
    path: "{{ venv_reuse_download_path }}"
    state: directory
    owner: "{{ venv_reuse_download_path_owner }}"
  delegate_to: localhost
  run_once: yes
  when:
    - venv_reuse_enable | bool

- name: Check if venv tgz is present on the deployment host
  stat:
    path: "{{ venv_reuse_download_path }}/{{ venv_destination_path | basename }}.tgz"
    get_attributes: no
    get_checksum: no
    get_md5: no
    get_mime: no
  register: _src_venv_present
  delegate_to: localhost
  run_once: yes
  when:
    - venv_reuse_enable | bool

- name: Ensure that virtualenv is installed on the destination host
  pip:
    name: virtualenv
    state: latest
    extra_args: "{{ host_pip_install_args }}"
  register: _install_host_pip_virtualenv
  until: _install_host_pip_virtualenv | success
  retries: 5
  delay: 2