################
# project config
################

# C++ project
language: cpp

dist: trusty
sudo: required
group: edge


################
# build matrix
################

matrix:
  include:

  ################
  # Linux / GCC
  ################

  - os: linux
    compiler: gcc
    env: COMPILER=g++-5
    addons:
      apt:
        sources: ['ubuntu-toolchain-r-test']
        packages: ['g++-5', 'ninja-build']

  - os: linux
    compiler: gcc
    env: COMPILER=g++-6
    addons:
      apt:
        sources: ['ubuntu-toolchain-r-test']
        packages: ['g++-6', 'ninja-build']

  - os: linux
    compiler: gcc
    env: COMPILER=g++-7
    addons:
      apt:
        sources: ['ubuntu-toolchain-r-test']
        packages: ['g++-7', 'ninja-build']

  ################
  # Linux / Clang
  ################

  - os: linux
    compiler: clang
    env: COMPILER=clang++-4.0
    addons:
      apt:
        sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-4.0']
        packages: ['clang-4.0', 'ninja-build']

  - os: linux
    compiler: clang
    env: COMPILER=clang++-5.0
    addons:
      apt:
        sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-5.0']
        packages: ['clang-5.0', 'ninja-build']

################
# build / test
################

script:

  # show OS/compiler version
  - uname -a
  - $CXX --version

  # compile and execute unit tests
  - mkdir -p build.release && cd build.release
  - cmake .. ${CMAKE_OPTIONS} -GNinja && cmake --build . --config Release
  - cd ..