sudo: required
os:
  - linux
  - osx
language: python
python:
  - "3.6"
  - "3.5"
  - "3.4"
  - "3.3"
  - "2.7"
  - "pypy"
  - "pypy3"
matrix:
  include:
    # add a pep8 test
    - python: 3.6
      env: TOXENV=pep8

    # test setup.py using each tested version
    - python: 3.6
      env: TOXENV=setup36

    - python: 3.5
      env: TOXENV=setup35

    - python: 3.4
      env: TOXENV=setup34

    - python: 3.3
      env: TOXENV=setup33

    - python: 2.7
      env: TOXENV=setup27

    # do some tests with LC_ALL=C to check for locale variance
    - python: 3.6
      env: LC_ALL=C

    - python: 2.7
      env: LC_ALL=C

  allow_failures:
    # pep8 failures shouldn't be considered fatal
    - env: TOXENV=pep8
    # pypy and pypy3 tests are just for fun
    - python: "pypy"
    - python: "pypy3"
    # osx, until it's working
    - os: osx

# install requirements
install:
  - ./install_dependencies.${TRAVIS_OS_NAME}.sh
  # ensure tox and coveralls are installed
  - pip install tox python-coveralls

# set TOXENV if it isn't yet
before_script:
  - if [[ -z "$TOXENV" ]]; then export TOXENV=py${TRAVIS_PYTHON_VERSION//.}; fi
  - if [[ "${TRAVIS_PYTHON_VERSION}" == 'pypy' ]]; then export TOXENV=pypy; fi
  - if [[ "${TRAVIS_PYTHON_VERSION}" == 'pypy3' ]]; then export TOXENV=pypy3; fi

# run tox
script:
  - ./tox.sh

# and report coverage to coveralls, but only if this was a pytest run
after_success:
  - if [[ "${TOXENV}" == "py"* ]]; then coveralls; fi