---
# 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: Install distro packages for venv install
  package:
    name: "{{ venv_install_distro_package_list }}"
    state: "{{ venv_distro_package_state }}"
    update_cache: "{{ (ansible_pkg_mgr in ['apt', 'zypper']) | ternary('yes', omit) }}"
    cache_valid_time: "{{ (ansible_pkg_mgr == 'apt') | ternary(distro_cache_valid_time, omit) }}"
  when:
    - venv_install_distro_package_list | length > 0
  register: _install_distro_packages
  until: _install_distro_packages  is success
  retries: 5
  delay: 2

- name: Create venv parent directories on the target host
  file:
    path: "{{ venv_install_destination_path | dirname }}"
    state: directory

- name: Copy the venv archive checksum
  copy:
    src: "{{ venv_install_source_path }}/{{ venv_install_destination_path | basename }}.checksum"
    dest: "{{ venv_install_destination_path | dirname }}/"
  register: _venv_checksum_copy
  when:
    - _venv_source == 'file'

- name: Copy the venv archive
  copy:
    src: "{{ venv_install_source_path }}/{{ venv_install_destination_path | basename }}.tgz"
    dest: "{{ venv_install_destination_path | dirname }}/"
  when:
    - _venv_source == 'file'

- name: Download the venv archive checksum
  uri:
    url: "{{ venv_install_source_path }}/{{ venv_install_destination_path | basename }}.checksum"
    dest: "{{ venv_install_destination_path | dirname }}/"
    return_content: yes
  register: _venv_checksum_download
  when:
    - _venv_source == 'url'

- name: Download the venv archive
  get_url:
    url: "{{ venv_install_source_path }}/{{ venv_install_destination_path | basename }}.tgz"
    dest: "{{ venv_install_destination_path | dirname }}/"
    checksum: "sha1:{{ _venv_checksum_download.content | trim }}"
  when:
    - _venv_source == 'url'

- name: Remove existing venv on target host if it is changing
  file:
    path: "{{ venv_install_destination_path }}"
    state: absent
  when:
    - (_venv_checksum_copy is mapping and _venv_checksum_copy | changed) or
      (_venv_checksum_download is mapping and _venv_checksum_download | changed)

- name: Create venv directory on the target host
  file:
    path: "{{ venv_install_destination_path }}"
    state: directory
  register: _venv_dir_create

- name: Unarchive pre-built venv
  unarchive:
    src: "{{ venv_install_destination_path }}.tgz"
    dest: "{{ venv_install_destination_path }}"
    remote_src: yes
  when:
    - (_venv_checksum_copy is mapping and _venv_checksum_copy | changed) or
      (_venv_checksum_download is mapping and _venv_checksum_download | changed) or
      _venv_dir_create  is changed
  notify:
    - venv changed

# NOTE(odyssey4me):
# We reinitialize the venv to ensure that the right
# version of python is in the venv, but we do not
# want virtualenv to also replace pip, setuptools
# and wheel so we tell it not to.
# We do not use --always-copy for CentOS/SuSE due
# to https://github.com/pypa/virtualenv/issues/565
- name: Update virtualenv python and paths
  shell: |
    sed -si '1s/^.*python.*$/#!{{ (venv_install_destination_path ~ '/bin') | replace ('/','\/') }}\/python/' {{ venv_install_destination_path }}/bin/*
    virtualenv {{ venv_install_destination_path }} \
        {{ (ansible_pkg_mgr == 'apt') | ternary('--always-copy', '') }} \
        --no-pip \
        --no-setuptools \
        --no-wheel
  args:
    executable: /bin/bash
    warn: no
  when:
    - (_venv_checksum_copy is mapping and _venv_checksum_copy | changed) or
      (_venv_checksum_download is mapping and _venv_checksum_download | changed) or
      _venv_dir_create  is changed
  tags:
    - skip_ansible_lint