# vim ft=yaml

# After changing this file, check it on:
#   http://yaml-online-parser.appspot.com/

# See doc/travis_notes.txt for some guidelines

# this file is *not* meant to cover or endorse the use of travis, but rather to
# help confirm pull requests to this project.

env:
  global:
    - DISPLAY=""

language: python

matrix:
  include:
    - dist: xenial  # Ubuntu 16.04
      python: 3.6
      env:
        - TOXENV=py36
        - MIN_REQUIREMENTS=1
    - dist: xenial  # Ubuntu 16.04
      python: 3.7
      env:
        - TOXENV=py37
        - MIN_REQUIREMENTS=1
    - dist: bionic  # Ubuntu 18.04
      python: 3.6
      env: TOXENV=py36
    - dist: bionic  # Ubuntu 18.04
      python: 3.7
      env: TOXENV=py37
    - os: osx
      # https://blog.travis-ci.com/2019-08-07-extensive-python-testing-on-travis-ci
      osx_image: xcode10.3
      language: generic
      env: TOXENV=py37
      #addons:
      #  homebrew:
      #    # update: true
      #    packages: python3.7
      before_install:
        - pip3 install virtualenv
        - virtualenv -p python3 ~/venv
        - source ~/venv/bin/activate
#    - os: windows
#      language: minimal
#      before_install:
#        - choco install python3
#        - export PATH="/c/Python37:/c/Python37/Scripts:$PATH"
#      env: TOXENV=py37

# See http://docs.travis-ci.com/user/caching/#pip-cache
cache: pip

install:
  - pip install future  # needed for `builtins`
  - sudo pip install tox

before_script:
  # rewrite all minimal requirements as strict
  - if [[ "${MIN_REQUIREMENTS}" == "1" ]]; then
      python -c "req = open('requirements.txt').read().replace('>', '=') ; open('requirements-ci.txt', 'w').write(req)" ;
    else
      cp requirements.txt requirements-ci.txt ;
    fi
  - pip install -r requirements-ci.txt -U

script:
  # integration
  - tox --sitepackages

  #- python setup.py install --dry-run --user
  - virtualenv vEnv ;
    source vEnv/bin/activate
  - pip install --editable . ;
    cd .. & python -c "import pytorch_lightning ; print(pytorch_lightning.__version__)"
  - deactivate ;
    rm -rf vEnv

after_success:
  - coverage report
  # disable auto coverage bc it isn't accurate since it misses gpu code.
  # to get coverage, run local and push results
  # - codecov

notifications:
  email: false