.travis.yml

dist: trusty
language: cpp

# sources  list: https://github.com/travis-ci/apt-source-whitelist/blob/master/ubuntu.json,
# packages list: https://github.com/travis-ci/apt-package-whitelist/blob/master/ubuntu-trusty

matrix:
  include:
    # Newest/oldest GCC
    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-7' ]
      env: BUILD_TYPE=MinSizeRel GXX=7 CXX_STD=17

    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-7' ]
      env: BUILD_TYPE=Release GXX=7 CXX_STD=17

    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-4.8' ]
      env: BUILD_TYPE=Release GXX=4.8

    # Newest/oldest clang
    - os: linux
      compiler: clang
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-6.0' ]
          packages: [ 'clang-6.0', 'libstdc++-7-dev', 'libstdc++6' ] # C++17 support in libstd++
      env: BUILD_TYPE=MinSizeRel CLANGXX=6.0 CXX_STD=17

    - os: linux
      compiler: clang
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-6.0' ]
          packages: [ 'clang-6.0', 'libstdc++-7-dev', 'libstdc++6' ] # C++17 support in libstd++
      env: BUILD_TYPE=Release CLANGXX=6.0 CXX_STD=17

    - os: linux
      compiler: clang
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.6' ]
          packages: [ 'clang-3.6' ]
      env: BUILD_TYPE=Release CLANGXX=3.6

    # Other compiler versions
    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-7' ]
      env: BUILD_TYPE=Debug GXX=7

    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-6' ]
      env: BUILD_TYPE=MinSizeRel GXX=6 CXX_STD=14

    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-5' ]
      env: BUILD_TYPE=Release GXX=5

    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-4.9' ]
      env: BUILD_TYPE=MinSizeRel GXX=4.9

    - os: linux
      compiler: gcc
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test' ]
          packages: [ 'g++-4.8' ]
      env: BUILD_TYPE=Debug GXX=4.8

    - os: linux
      compiler: clang
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-5.0' ]
          packages: [ 'clang-5.0' ]
      env: BUILD_TYPE=Release CLANGXX=5.0

    - os: linux
      compiler: clang
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-4.0' ]
          packages: [ 'clang-4.0' ]
      env: BUILD_TYPE=MinSizeRel CLANGXX=4.0

    - os: linux
      compiler: clang
      addons:
        apt:
          sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.6' ]
          packages: [ 'clang-3.6' ]
      env: BUILD_TYPE=Debug CLANGXX=3.6 CXX_STD=14

# container-based builds
sudo: false

before_install:
  - env
  - export SRC_DIR="`pwd`"
  - if [ "$CXX" = "g++" ]; then export CXX="g++-$GXX" CC="gcc-$GXX"; fi
  - if [ "$CXX" = "clang++" ]; then export CXX="clang++-$CLANGXX" CC="clang-$CLANGXX"; fi

script:
  - $CXX --version
  - cmake --version
  - mkdir "$TRAVIS_BUILD_DIR/build"
  - cd "$TRAVIS_BUILD_DIR/build"
  - pwd
  - CXX_STD_ARG=""; if [ ! -z "${CXX_STD}" ]; then CXX_STD_ARG="-DCMAKE_CXX_STANDARD=${CXX_STD}"; fi
  - cmake -DCMAKE_BUILD_TYPE=${BUILD_TYPE} ${CXX_STD_ARG} "$SRC_DIR"
  - make -j2 # cores according to https://docs.travis-ci.com/user/reference/overview/
  - CTEST_OUTPUT_ON_FAILURE=1 make test
  - test/benchmark_cppcodec