.travis.yml

language: cpp
sudo: false

common_sources: &all_sources
  - ubuntu-toolchain-r-test
  - llvm-toolchain-trusty
  - llvm-toolchain-trusty-4.0
  - llvm-toolchain-trusty-5.0
  - llvm-toolchain-trusty-6.0

matrix:
  include:
    # Linux GCC 5 build
    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: *all_sources
          packages:
            - g++-5
      env:
        - COMPILER='g++-5'

    # Linux GCC 6 build
    - os: linux
      compiler: gcc
      addons: &gcc6
        apt:
          sources: *all_sources
          packages:
            - g++-6
      env:
        - COMPILER='g++-6'

    # Linux GCC 7 build
    - os: linux
      compiler: gcc
      addons: &gcc7
        apt:
          sources: *all_sources
          packages:
            - g++-7
      env:
        - COMPILER='g++-7'

    # Linux GCC 8 build (with coverage)
    - os: linux
      compiler: gcc
      addons: &gcc8
        apt:
          sources: *all_sources
          packages:
            - g++-8
            # - lcov
      env:
        - COMPILER='g++-8'
        # disable coverage analysis for now
        # - COVERAGE=1

    # Linux Clang 4 build
    - os: linux
      compiler: clang
      addons:
        apt:
          sources: *all_sources
          packages:
            - clang-4.0
      env:
        - COMPILER='clang++-4.0'

    # Linux Clang 5 build
    - os: linux
      compiler: clang
      addons:
        apt:
          sources: *all_sources
          packages:
            - clang-5.0
      env:
        - COMPILER='clang++-5.0'

    # Linux Clang 6 build
    - os: linux
      compiler: clang
      addons:
        apt:
          sources: *all_sources
          packages:
            - clang-6.0
            - libstdc++-6-dev
      env:
        - COMPILER='clang++-6.0'

    # OS X Xcode8 GCC build
    - os: osx
      osx_image: xcode8.3
      compiler: gcc
      env:
        - COMPILER='g++'

    # OS X Xcode9 GCC build
    - os: osx
      osx_image: xcode9.2
      compiler: gcc
      env:
        - COMPILER='g++'

    # OS X Xcode8 Clang build
    - os: osx
      osx_image: xcode8.3
      compiler: clang
      env:
        - COMPILER='clang++'

    # OS X Xcode9 Clang build
    - os: osx
      osx_image: xcode9.2
      compiler: clang
      env:
        - COMPILER='clang++'

install:
  - mkdir -p tmp && cd tmp
  - |
    if [[ "${TRAVIS_OS_NAME}" == "linux" ]]
    then
      CMAKE_URL="https://cmake.org/files/v3.10/cmake-3.10.1-Linux-x86_64.tar.gz"
      mkdir cmake && travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
      export PATH=tmp/cmake/bin:${PATH}
    elif [[ "${TRAVIS_OS_NAME}" == "osx" ]]
    then
        which cmake || brew install cmake;
    fi

before_script:
  - export CXX=${COMPILER}
  - cd ${TRAVIS_BUILD_DIR}

script:
  - make
  - |
    if [[ "${TRAVIS_OS_NAME}" == "linux" ]] && [[ "${COVERAGE}" == "1" ]]
    then
      make coverage && bash <(curl -s https://codecov.io/bash) -X gcov
    else
      make test
    fi