# Based on https://github.com/ldionne/hana/blob/master/.travis.yml

language: cpp
dist: trusty
sudo: false

matrix:
  include:
    - env: COMPILER=clang++-3.6 BUILD_TYPE=Debug CLANG=1
      compiler: clang
      addons: &clang36
        apt:
          packages:
            - clang-3.6
            - cmake
            - g++-5
          sources: &sources
            - ubuntu-toolchain-r-test
            - llvm-toolchain-trusty-3.6
            - kalakris-cmake
    - env: COMPILER=clang++-3.6 BUILD_TYPE=Release CLANG=1
      compiler: clang
      addons: *clang36
    - env: COMPILER=g++-5 BUILD_TYPE=Debug
      compiler: gcc
      addons: &gcc5
        apt:
          packages: g++-5
          sources: *sources
    - env: COMPILER=g++-5 BUILD_TYPE=Release
      compiler: gcc
      addons: *gcc5

install:
  - which $COMPILER
  - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
  - mkdir ${DEPS_DIR} && cd ${DEPS_DIR}
  - |
    if [[ "$CLANG" == 1 && "${TRAVIS_OS_NAME}" == "linux" && "${STDLIB}" != "libstdc++" ]]; then
      if [[ "${COMPILER}" == "clang++-3.5" ]]; then LLVM_VERSION="3.5.2"; fi
      if [[ "${COMPILER}" == "clang++-3.6" ]]; then LLVM_VERSION="3.6.2"; fi
      if [[ "${COMPILER}" == "clang++-3.7" ]]; then LLVM_VERSION="3.7.0"; fi
      LLVM_URL="http://llvm.org/releases/${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 --quiet -O - ${LLVM_URL} | tar --strip-components=1 -xJ -C llvm
      travis_retry wget --quiet -O - ${LIBCXX_URL} | tar --strip-components=1 -xJ -C llvm/projects/libcxx
      travis_retry wget --quiet -O - ${LIBCXXABI_URL} | tar --strip-components=1 -xJ -C llvm/projects/libcxxabi
      (cd llvm/build && cmake .. -DCMAKE_INSTALL_PREFIX=${DEPS_DIR}/llvm/install -DCMAKE_CXX_COMPILER=clang++)
      (cd llvm/build/projects/libcxx && make install -j2)
      (cd llvm/build/projects/libcxxabi && make install -j2)
      export CXXFLAGS="-I ${DEPS_DIR}/llvm/install/include/c++/v1"
      export LDFLAGS="-L ${DEPS_DIR}/llvm/install/lib -l c++ -l c++abi"
      export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${DEPS_DIR}/llvm/install/lib"
    fi

before_script:
  - cd ${TRAVIS_BUILD_DIR}
  - cmake -H. -Bb -DCMAKE_CXX_COMPILER=$COMPILER -DCMAKE_INSTALL_PREFIX=$PWD/o -DCMAKE_BUILD_TYPE=$BUILD_TYPE
  - cmake --build b

script:
  - cd b
  - ctest

notifications:
  email: false