.travis.yml

# Copyright Louis Dionne 2015
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)

language: c++
compiler: clang
os: linux
sudo: false

env:
  # Workaround for https://github.com/travis-ci/travis-ci/issues/4681
  matrix:
    - TRAVIS_EMPTY_JOB_WORKAROUND=true


matrix:
  exclude:
    - env: TRAVIS_EMPTY_JOB_WORKAROUND=true

  include:
    # Clang 3.5
    - env: COMPILER=clang++-3.5
      addons:
        apt:
          packages: ["clang-3.5"]
          sources: &sources
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.5
            - llvm-toolchain-precise-3.6
            - llvm-toolchain-precise-3.7
            - llvm-toolchain-precise

    # Clang 3.6
    - env: COMPILER=clang++-3.6
      addons:
        apt:
          packages: ["clang-3.6"]
          sources: *sources

    # Clang 3.7
    - env: COMPILER=clang++-3.7
      addons:
        apt:
          packages: ["clang-3.7"]
          sources: *sources

    # Xcode 6.3
    - os: osx
      env: COMPILER=clang++
      osx_image: beta-xcode6.3

    # Xcode 6.4
    - os: osx
      env: COMPILER=clang++
      osx_image: xcode6.4

    # Xcode 7
    - os: osx
      env: COMPILER=clang++
      osx_image: xcode7

    # Xcode 7.1
    - os: osx
      env: COMPILER=clang++
      osx_image: xcode7.1


before_install:
  - set -e # Fail the whole script whenever any command fails


install:
  ############################################################################
  # All the dependencies are installed in ${TRAVIS_BUILD_DIR}/deps/
  ############################################################################
  - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
  - mkdir ${DEPS_DIR} && cd ${DEPS_DIR}

  ############################################################################
  # Install Boost headers
  ############################################################################
  - BOOST_URL="http://sourceforge.net/projects/boost/files/boost/1.59.0/boost_1_59_0.tar.gz"
  - mkdir boost && travis_retry wget --quiet -O - ${BOOST_URL} | tar --strip-components=1 -xz -C boost
  - if [[ -d ${DEPS_DIR}/boost ]]; then CMAKE_OPTIONS+=" -DBOOST_ROOT=${DEPS_DIR}/boost"; fi

  ############################################################################
  # Install a recent CMake
  ############################################################################
  - |
    if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
      CMAKE_URL="http://www.cmake.org/files/v3.3/cmake-3.3.2-Linux-x86_64.tar.gz"
      mkdir cmake && travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
      export PATH=${DEPS_DIR}/cmake/bin:${PATH}
    else
      brew install cmake
    fi

  ############################################################################
  # Install libc++ and libc++abi (on Linux only; Xcode uses libc++ by default)
  ############################################################################
  - |
    if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
      if   [[ "${COMPILER}" == "clang++-3.5" ]]; then LLVM_VERSION="3.5.2"
      elif [[ "${COMPILER}" == "clang++-3.6" ]]; then LLVM_VERSION="3.6.2";
      elif [[ "${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"
      TAR_FLAGS="-xJ"

      mkdir -p llvm llvm/build llvm/projects/libcxx llvm/projects/libcxxabi
      travis_retry wget --quiet -O - ${LLVM_URL} | tar --strip-components=1 ${TAR_FLAGS} -C llvm
      travis_retry wget --quiet -O - ${LIBCXX_URL} | tar --strip-components=1 ${TAR_FLAGS} -C llvm/projects/libcxx
      travis_retry wget --quiet -O - ${LIBCXXABI_URL} | tar --strip-components=1 ${TAR_FLAGS} -C llvm/projects/libcxxabi
      (cd llvm/build && cmake .. -DCMAKE_INSTALL_PREFIX=${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="-isystem ${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:
  ############################################################################
  # Go back to the root of the project and setup the build directory
  ############################################################################
  - cd ${TRAVIS_BUILD_DIR}
  - (mkdir build && cd build && cmake .. -DCMAKE_CXX_COMPILER=${COMPILER} ${CMAKE_OPTIONS})


script:
  ############################################################################
  # Build the unit tests.
  ############################################################################
  - (cd build && make -k)