.travis.yml

# Based on https://github.com/Microsoft/GSL/blob/master/.travis.yml

language: cpp
sudo: false
notifications:
  email: true

# Use Linux unless specified otherwise
os: linux
dist: trusty

cache:
  directories:
    - ${TRAVIS_BUILD_DIR}/DEPS_DIR

matrix:
  include:
    # Clang 5.0
    - env: COMPILER=clang++-5.0 BUILD_TYPE=Debug
      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-4.0 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'

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

    # 32bit
    - env: COMPILER=g++-7 BUILD_TYPE=Release
      addons: *gcc7

    # Coveralls (http://gronlier.fr/blog/2015/01/adding-code-coverage-to-your-c-project/)
    - env: COMPILER=g++-7 BUILD_TYPE=Release CMAKE_OPTIONS=-DCPPYSTRUCT_Coverage=ON
      addons: &gcc7_coveralls
        apt:
          packages:
            - g++-7
            - lcov
          sources:
            - ubuntu-toolchain-r-test
      before_script:
        - pip install --user cpp-coveralls
      after_success:
        - coveralls --verbose -E /usr/include.* -e build/catch -e build/external -e build/internal -e tests --gcov-options '\-lp'

################
# build script #
################

install:
  - sudo ln -s /usr/include/asm-generic /usr/include/asm
  - uname -a

  # Set the ${CXX} variable properly
  - export CXX=${COMPILER}
  - ${CXX} --version

  # Dependencies required by the CI are installed in ${TRAVIS_BUILD_DIR}/deps/
  - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
  - mkdir -p "${DEPS_DIR}"
  - cd "${DEPS_DIR}"

  # Travis machines have 2 cores
  - JOBS=2

  - |
    LLVM_INSTALL=${DEPS_DIR}/llvm/install
    # if in linux and compiler clang and llvm not installed
    if [[ "${TRAVIS_OS_NAME}" == "linux" && "${CXX%%+*}" == "clang" && -n "$(ls -A ${LLVM_INSTALL})" ]]; then
      if   [[ "${CXX}" == "clang++-3.6" ]]; then LLVM_VERSION="3.6.2";
      elif [[ "${CXX}" == "clang++-3.7" ]]; then LLVM_VERSION="3.7.1";
      elif [[ "${CXX}" == "clang++-3.8" ]]; then LLVM_VERSION="3.8.1";
      elif [[ "${CXX}" == "clang++-3.9" ]]; then LLVM_VERSION="3.9.1";
      fi
      LLVM_URL="http://llvm.org/releases/${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.xz"
      LIBCXX_URL="http://llvm.org/releases/${LLVM_VERSION}/libcxx-${LLVM_VERSION}.src.tar.xz"
      LIBCXXABI_URL="http://llvm.org/releases/${LLVM_VERSION}/libcxxabi-${LLVM_VERSION}.src.tar.xz"
      mkdir -p llvm llvm/build llvm/projects/libcxx llvm/projects/libcxxabi
      travis_retry wget -O - ${LLVM_URL} | tar --strip-components=1 -xJ -C llvm
      travis_retry wget -O - ${LIBCXX_URL} | tar --strip-components=1 -xJ -C llvm/projects/libcxx
      travis_retry wget -O - ${LIBCXXABI_URL} | tar --strip-components=1 -xJ -C llvm/projects/libcxxabi
      (cd llvm/build && cmake .. -DCMAKE_INSTALL_PREFIX=${LLVM_INSTALL})
      (cd llvm/build/projects/libcxx && make install -j2)
      (cd llvm/build/projects/libcxxabi && make install -j2)
      export CXXFLAGS="-isystem ${LLVM_INSTALL}/include/c++/v1"
      export LDFLAGS="-L ${LLVM_INSTALL}/lib -l c++ -l c++abi"
      export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${LLVM_INSTALL}/lib"
    fi

script:
  - cmake --version
  - cd "${TRAVIS_BUILD_DIR}"
  - mkdir -p build && cd build
  - cmake .. -DCMAKE_BUILD_TYPE=$BUILD_TYPE ${CMAKE_OPTIONS}

  - cmake --build . -- -j${JOBS}
  - ctest --output-on-failure -j${JOBS}
  - cd ..