sudo: false
language: python

branches:
  # Only run builds on release branches.
  # (Builds will *also* still run on pull requests;
  # this avoids duplicate builds on the PR *branches*, too.)
  only:
    - master
    - /^v\d+\.\d+(\.\d+)?(-\S*)?$/

matrix:
  include:
    - { env: LINT_AND_DOCS=true, python: 3.6 }

    # Anymail supports the same Python versions as Django, plus PyPy.
    # https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django

    # Live API integration tests are only run on a few, representative Python/Django version
    # combinations, to avoid rapidly consuming the testing accounts' entire send allotments.

    # Django 1.11: Python 2.7, 3.4, 3.5, or 3.6
    - { env: DJANGO=1.11 RUN_LIVE_TESTS=true, python: 2.7 }
    - { env: DJANGO=1.11, python: 3.4 }
    - { env: DJANGO=1.11, python: 3.5 }
    - { env: DJANGO=1.11, python: 3.6 }
    - { env: DJANGO=1.11, python: pypy }
    # Django 2.0: Python 3.5+
    - { env: DJANGO=2.0, python: 3.5 }
    - { env: DJANGO=2.0 RUN_LIVE_TESTS=true, python: 3.6 }
    - { env: DJANGO=2.0, python: pypy3 }
    # Django 2.1 (prerelease): Python 3.5+
    #- { env: DJANGO=2.1, python: 3.5 }
    #- { env: DJANGO=2.1, python: 3.6 }
    # Django development master (direct from GitHub source):
    - { env: DJANGO=master, python: 3.6 }
    - { env: DJANGO=master, python: 3.7-dev }

    # Obsolete Django versions (no longer supported by Django)
    # Anymail tries to support these, but doesn't test every possible combination...
    # Django 1.8: Python 2.7, 3.3, 3.4, 3.5
    - { env: DJANGO=1.8, python: 2.7 }
    - { env: DJANGO=1.8, python: 3.4 }
    - { env: DJANGO=1.8, python: 3.5 }
    - { env: DJANGO=1.8, python: pypy }
    # Django 1.9: Python 2.7, 3.4, 3.5
    - { env: DJANGO=1.9, python: 2.7 }
    - { env: DJANGO=1.9, python: 3.5 }
    # Django 1.10: Python 2.7, 3.4, 3.5
    - { env: DJANGO=1.10, python: 2.7 }
    - { env: DJANGO=1.10, python: 3.5 }

  allow_failures:
    - env: DJANGO=2.1
      python: 3.5
    - env: DJANGO=2.1
      python: 3.6
    - env: DJANGO=master
      python: 3.6
    - env: DJANGO=master
      python: 3.7-dev

cache: pip

install:
  - pip install tox-travis

script:
  - tox