- name: Include OS-specific variables
  include_vars: "{{ zj_distro_os }}"
  loop_control:
    loop_var: zj_distro_os
  with_first_found:
    - "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yaml"
    - "{{ ansible_distribution }}.{{ ansible_architecture }}.yaml"
    - "{{ ansible_distribution }}.yaml"
    - "{{ ansible_os_family }}.yaml"

- name: Put .python-version contents into variable
  when:
    - python_version is not defined
  set_fact:
    python_version: "{{ lookup('ansible.builtin.file', zuul.executor.work_root ~ '/' ~ zuul.project.src_dir ~ '/.python-version') }}"

- name: Install python build depends
  become: true
  package:
    name: "{{ python_build_depends }}"

- name: Clone pyenv repo
  git:
    repo: https://github.com/pyenv/pyenv.git
    dest: "{{ ansible_user_dir }}/.pyenv"
    version: master

# NOTE(mnaser): python-build does not allow us to let it install Python from a specific
#               series so we have to do some magic to find out what's the latest
#               release from a series
# NOTE(fungi): due to https://github.com/pyenv/pyenv/issues/3015 we need to
#              filter out no-GIL/free-threading "t" suffixed versions, since
#              they don't provide the expected vanilla executables
- name: Determine Python version
  shell: |
    set -o pipefail
    {{ ansible_user_dir }}/.pyenv/plugins/python-build/bin/python-build --definitions | grep ^{{ python_version }} | grep -v t$ | tail -1
  args:
    executable: /bin/bash
  register: _python_version

# NOTE(mnaser): We install Python globally in the system, as that's somewhat
#               similar to behaviour of installing a Python package.  It also
#               avoids us having to mess around $PATH.
- name: Install python
  become: true
  command: "{{ ansible_user_dir }}/.pyenv/plugins/python-build/bin/python-build {{ _python_version.stdout }} /usr/local"
  environment:
    CFLAGS: -O2