.travis.yml

language: cpp
sudo: required
os: linux
dist: trusty
matrix:
  include:
    ##########################################################################
    # Clang on Linux
    ##########################################################################

    # Clang 3.6
    - env: COMPILER=clang++-3.6
      addons: &clang36
        apt:
          packages:
            - clang-3.6
            - g++-5
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.6

    # Clang 3.7
    #- dist: precise
    #  compiler: clang
    #  addons:
    #    apt:
    #      sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.7']
    #      packages: ['clang-3.7']
    #  env:
    #    - COMPILER=clang++-3.7

    # Clang 3.8
    - env: COMPILER=clang++-3.8
      addons: &clang38
        apt:
          packages:
            - clang-3.8
            - g++-5
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.8

    # Clang 3.9
    - env: COMPILER=clang++-3.9
      addons: &clang39
        apt:
          packages:
            - clang-3.9
            - g++-5
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.9

    # Clang 4.0
    #- env: COMPILER=clang++-4.0
    #  addons: &clang40
    #    apt:
    #      packages:
    #        - clang-4.0
    #        - g++-5
    #      sources:
    #        - ubuntu-toolchain-r-test
    #        - llvm-toolchain-trusty-4.0

    # Clang 5.0
    - env: COMPILER=clang++-5.0
      addons: &clang50
        apt:
          packages:
            - clang-5.0
            - g++-7
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-trusty-5.0
            - sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-5.0 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'

    # Clang 6.0
    - env: COMPILER=clang++-6.0
      addons: &clang60
        apt:
          packages:
            - clang-6.0
            - g++-7
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-trusty-6.0
            - sourceline: 'deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-6.0 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'


    ##########################################################################
    # GCC on Linux
    ##########################################################################

    # GCC 5
    - env: COMPILER=g++-5
      addons: &gcc5
        apt:
          packages: g++-5
          sources:
            - ubuntu-toolchain-r-test

    # GCC 6
    - env: COMPILER=g++-6
      addons: &gcc6
        apt:
          packages: g++-6
          sources:
            - ubuntu-toolchain-r-test

    # GCC 7
    - env: COMPILER=g++-7
      addons: &gcc7
        apt:
          packages: g++-7
          sources:
            - ubuntu-toolchain-r-test

install:
  # Set the ${CXX} variable properly
  - export CXX=${COMPILER}
  - ${CXX} --version
  # Travis machines have 2 cores
  - JOBS=2
before_script:
  # have CMake to generate build files
  - cd "${TRAVIS_BUILD_DIR}"
  - mkdir build && cd build
  - cmake .. -DCMAKE_BUILD_TYPE=$BUILD_TYPE
script:
  # build and run tests
  - cmake --build . -- -j${JOBS}
  - ctest --output-on-failure -j${JOBS}
branches:
  only:
    - master