language: cpp
dist: trusty
env:
matrix:
  fast_finish: true
  include:
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.9
            - libeigen3-dev
      env: COMPILER=gcc GCC=4.9
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-5
            - libeigen3-dev
      env: COMPILER=gcc GCC=5
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-6
            - libeigen3-dev
      env: COMPILER=gcc GCC=6
env:
  global:
    - MINCONDA_VERSION="latest"
    - MINCONDA_LINUX="Linux-x86_64"
    - MINCONDA_OSX="MacOSX-x86_64"
before_install:
    - |
      # Configure build variables
      if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
        if [[ "$COMPILER" == "gcc" ]]; then
          export CXX=g++-$GCC CC=gcc-$GCC;
        fi
        if [[ "$COMPILER" == "clang" ]]; then
          export CXX=clang++-$CLANG CC=clang-$CLANG;
        fi
      elif [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
        export CXX=clang++ CC=clang;
      fi
install:
    # Define the version of miniconda to download
    - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
        MINCONDA_OS=$MINCONDA_LINUX;
      elif [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
        MINCONDA_OS=$MINCONDA_OSX;
      fi
    - wget "http://repo.continuum.io/miniconda/Miniconda3-$MINCONDA_VERSION-$MINCONDA_OS.sh" -O miniconda.sh;
    - bash miniconda.sh -b -p $HOME/miniconda
    - export PATH="$HOME/miniconda/bin:${PATH}"
    - export INCLUDE_PATH="$HOME/miniconda/include:${INCLUDE_PATH}"
    - hash -r
    - conda config --set always_yes yes --set changeps1 no
    - conda update -q conda
    - conda install cmake -c conda-forge
    - conda install xtl -c conda-forge
    - conda install xsimd -c conda-forge
    - conda install xtensor -c conda-forge
    - conda install nlohmann_json -c conda-forge
    # build path
    - mkdir build
    - cd build
    # install catch
    - git clone https://github.com/catchorg/Catch2.git
    - cd Catch2
    - mkdir build
    - cd build
    - mkdir opt
    - cmake .. -DCATCH_BUILD_TESTING=OFF -DCMAKE_INSTALL_PREFIX:PATH="${PWD}"/opt
    - make install
    - export INCLUDE_PATH="${PWD}"/opt/include:"${INCLUDE_PATH}"
    - cd ../..
    # make test-cases
    - cmake .. -DBUILD_TESTS=ON
    - make
    - cd test
script:
    - ./test