# Change pip's cache directory to be inside the project directory since we can
# only cache local items.
variables:
  PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"

# Pip's cache doesn't store the python packages
# https://pip.pypa.io/en/stable/reference/pip_install/#caching
#
# If you want to also cache the installed packages, you have to install
# them in a virtualenv and cache it as well.
cache:
  paths:
    - .cache/pip
    - venv/

stages:
  - lint
  - test

before_script:
  - python -V
  - pip install virtualenv
  - virtualenv venv
  - source venv/bin/activate

lint:
  stage: lint
  script:
    - pip3 install black
    - black --check src/

python-37:
  stage: test
  image: python:3.7
  script:
    - pip3 install tox
    - tox -e py37

python-38:
  stage: test
  image: python:3.8
  script:
    - pip3 install tox
    - tox -e py38

python-39:
  stage: test
  image: python:3.9
  script:
    - pip3 install tox
    - tox -e py39

python-310:
  stage: test
  image: python:3.10
  script:
    - pip3 install tox
    - tox -e py310