.travis.yml

os: linux
dist: xenial

cache:
  directories:
    - $HOME/Library/Caches/Homebrew
    - /usr/local/Homebrew
    - /Users/travis/.pyenv/

before_cache:
  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then brew cleanup; fi
# Credit https://discourse.brew.sh/t/best-practice-for-homebrew-on-travis-brew-update-is-5min-to-build-time/5215/9
# Cache only .git files under "/usr/local/Homebrew" so "brew update" does not take 5min every build
  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then find /usr/local/Homebrew \! -regex ".+\.git.+" -delete; fi

addons:
  apt:
    packages:
    - g++
    - cmake
    - libjsoncpp-dev
    update: true
  homebrew:
    packages:
    - jsoncpp
    - pyenv
    - pyenv-virtualenv

language: python
python:
- "3.5"
- "3.6"
- "3.7"

env: COVERAGE=1

# Workaround to install Python on OS X, based on https://gist.github.com/Bouke/11261620
matrix:
  include:
  - name: "Python: 3.5"
    os: osx
    osx_image: xcode11
    language: generic
    env: PYTHON=3.5.5 COVERAGE=1
    update: true
  - name: "Python: 3.6"
    os: osx
    osx_image: xcode11
    language: generic
    env: PYTHON=3.6.5 COVERAGE=1
    update: true
  - name: "Python: 3.7"
    os: osx
    osx_image: xcode11
    language: generic
    env: PYTHON=3.7.3 COVERAGE=1
    update: true

before_install: |
  if [ "$TRAVIS_OS_NAME" == "osx" ]; then
    # pyenv install --list
    pyenv install --skip-existing $PYTHON
    export PYENV_VERSION=$PYTHON
    export PATH="/Users/travis/.pyenv/shims:${PATH}"
    python --version
  fi

install:
- make venv
- pip install codecov
script:
- make test
- codecov