.travis.yml

# System information
os: linux
addons:
  postgresql: "12.2"
services:
  - redis

language: python
python: 3.5
cache: pip

# Use a two-stage approach, to minimize CI time on failures.
stages:
- primary
- secondary

env: DJANGO_SETTINGS_MODULE="settings.test_settings"

jobs:
  include:
    # Basic Checks
    - stage: primary
      env: NOXSESSION=lint-3.5
    - env: NOXSESSION=test-2.7
    - env: NOXSESSION=test-3.5
    - env: NOXSESSION=docs

    - stage: secondary
      env: NOXSESSION=test-3.6
      python: 3.6
    - env: NOXSESSION=test-3.7
      python: 3.7

install:
  # Enable Python 3.6.x, when python: 3.5 (because black is Py3.6+)
  - |
    if [ "${TRAVIS_PYTHON_VERSION}" == "3.5" ]; then
      pyenv shell system:3.6.7
    fi

  # Get the latest pip
  - python -m pip install --upgrade pip
  # Reinstall pip, using the latest pip
  - python -m pip install --force-reinstall pip

  # Install the CI dependencies
  - python -m pip install celery==3.1.20  # pin from requirements.txt
  - python -m pip install Django==1.9  # pin from requirements.txt
  - python -m pip install nox
  - python -m pip install coveralls

before_script:
  - celery -A junction worker -l info --detach
script:
  - nox
after_success:
  - coveralls

notifications:
  email:
    on_success: change  # [always|never|change]
    on_failure: always  # [always|never|change]