.travis.yml

# After changing this file, check it on: https://lint.travis-ci.org/
# Conda install recipe based on:
#     https://gist.github.com/dan-blanchard/7045057
#     https://conda.pydata.org/docs/travis.html

language: python

# We need to explicitely set all combination of the test matrix because Travis
# macOS images do not support Python. See:
# https://docs.travis-ci.com/user/multi-os/#Python-example-(unsupported-languages)
matrix:
  include:

    # We're not directly using the Python distribution provided by Travis, but
    # this variable will be fed to Conda to install the right version.
    - python: "2.7"
      env: PYTHON_DIST="2.7"
    - python: "3.4"
      env: PYTHON_DIST="3.4"
    - python: "3.5"
      env: PYTHON_DIST="3.5"
    - python: "3.6"
      env: PYTHON_DIST="3.6"

    # Xcode to macOS version matrix is available at:
    # https://docs.travis-ci.com/user/reference/osx/#os-x-version

    # Mac OS X 10.10 latest image is Xcode 6.4.
    - language: generic
      os: osx
      osx_image: xcode6.4
      env: PYTHON_DIST="2.7"
    - language: generic
      os: osx
      osx_image: xcode6.4
      env: PYTHON_DIST="3.4"
    - language: generic
      os: osx
      osx_image: xcode6.4
      env: PYTHON_DIST="3.5"
    - language: generic
      os: osx
      osx_image: xcode6.4
      env: PYTHON_DIST="3.6"

    # Mac OS X 10.11 latest image is Xcode 8.
    - language: generic
      os: osx
      osx_image: xcode8
      env: PYTHON_DIST="2.7"
    - language: generic
      os: osx
      osx_image: xcode8
      env: PYTHON_DIST="3.4"
    - language: generic
      os: osx
      osx_image: xcode8
      env: PYTHON_DIST="3.5"
    - language: generic
      os: osx
      osx_image: xcode8
      env: PYTHON_DIST="3.6"

    # macOS 10.12 latest image is Xcode 9.2.
    - language: generic
      os: osx
      osx_image: xcode9.2
      env: PYTHON_DIST="2.7"
    - language: generic
      os: osx
      osx_image: xcode9.2
      env: PYTHON_DIST="3.4"
    - language: generic
      os: osx
      osx_image: xcode9.2
      env: PYTHON_DIST="3.5"
    - language: generic
      os: osx
      osx_image: xcode9.2
      env: PYTHON_DIST="3.6"

    # macOS 10.13 latest image is Xcode 9.3.
    - language: generic
      os: osx
      osx_image: xcode9.3
      env: PYTHON_DIST="2.7"
    - language: generic
      os: osx
      osx_image: xcode9.3
      env: PYTHON_DIST="3.4"
    - language: generic
      os: osx
      osx_image: xcode9.3
      env: PYTHON_DIST="3.5"
    - language: generic
      os: osx
      osx_image: xcode9.3
      env: PYTHON_DIST="3.6"

# Update the system and setup a fresh Anaconda ecosystem.
before_install:
  # Show environment variables for debugging.
  - env
  # Check default Python version installed.
  - python --version
  # Explicitly download the Miniconda dedicated to the Python version we
  # target, to ensure stability in case the default change in the future. Also
  # speed things up a little bit by only installing the minimal requirements.
  - if [[ "$PYTHON_DIST" == "2.7" ]]; then
      MINICONDA_DIST="Miniconda2-latest";
    else
      MINICONDA_DIST="Miniconda3-latest";
    fi
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
      MINICONDA_DIST="$MINICONDA_DIST-MacOSX-x86_64.sh";
    else
      MINICONDA_DIST="$MINICONDA_DIST-Linux-x86_64.sh";
    fi
  - wget https://repo.continuum.io/miniconda/$MINICONDA_DIST -O ./miniconda.sh
  - bash ./miniconda.sh -b -p $HOME/miniconda
  - export PATH="$HOME/miniconda/bin:$PATH"
  - hash -r
  - conda config --set always_yes yes --set changeps1 no
  - conda update --all
  # Useful for debugging any issues with Conda.
  - conda info --all

install:
  # Create an Anaconda virtual env in a particular Python version.
  - conda create --name test_env python=$PYTHON_DIST
  - conda env update --name test_env --file ./conda.yml
  - source activate test_env
  # Check we installed the right Python version.
  - python --version
  - pip --version
  - pip freeze

before_script:
  - pip install codecov

script:
  # Launch unittests.
  - pip install -e .[tests]
  - pytest
  # Check coding style.
  - pycodestyle
  # Test that there is no conflicting dependencies.
  - pipdeptree --warn fail
  # Test that building packages works.
  - pip install -e .[develop]
  - ./setup.py sdist bdist_egg bdist_wheel
  # Validates package metadata.
  - ./setup.py check -m -r -s

after_script:
  - codecov

notifications:
  email:
    on_success: never
    on_failure: always