.travis.yml

sudo: true
language: generic

os: linux
dist: trusty

cache:
  directories:
    - ${TRAVIS_BUILD_DIR}/deps/cmake
    - ${TRAVIS_BUILD_DIR}/deps/boost

matrix:
  include:
    ##======================
    ## Linux
    ##======================

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

    - env: BUILD_TYPE=Release COMPILER_NAME=gcc CXX=g++-7 CC=gcc-7
      addons: *gcc7

    - env: BUILD_TYPE=Debug COMPILER_NAME=gcc CXX=g++-6 CC=gcc-6
      addons: &gcc6
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-6
            - g++-6

    - env: BUILD_TYPE=Release COMPILER_NAME=gcc CXX=g++-6 CC=gcc-6
      addons: *gcc6

    - env: BUILD_TYPE=Debug COMPILER_NAME=gcc CXX=g++-5 CC=gcc-5
      addons: &gcc5
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-5
            - g++-5

    - env: BUILD_TYPE=Release COMPILER_NAME=gcc CXX=g++-5 CC=gcc-5
      addons: *gcc5

    ##===============
    ## Clang
    ##===============
    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-5.0 CC=clang-5.0
      addons: &clang50
        apt:
          sources:
            - llvm-toolchain-trusty-5.0
            - ubuntu-toolchain-r-test
          packages:
            - clang-5.0

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-5.0 CC=clang-5.0
      addons: *clang50

    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-4.0 CC=clang-4.0
      addons: &clang40
        apt:
          sources:
            - llvm-toolchain-trusty-4.0
            - ubuntu-toolchain-r-test
          packages:
            - clang-4.0

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-4.0 CC=clang-4.0
      addons: *clang40

    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
      addons: &clang39
        apt:
          sources:
            - llvm-toolchain-trusty-3.9
            - ubuntu-toolchain-r-test
          packages:
            - clang-3.9

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
      addons: *clang39

    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-3.8 CC=clang-3.8
      addons: &clang38
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - clang-3.8

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-3.8 CC=clang-3.8
      addons: *clang38

    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-3.7 CC=clang-3.7
      addons: &clang37
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.7
          packages:
            - clang-3.7

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-3.7 CC=clang-3.7
      addons: *clang37

    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-3.6 CC=clang-3.6
      addons: &clang36
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - clang-3.6

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-3.6 CC=clang-3.6
      addons: *clang36

    - env: BUILD_TYPE=Debug COMPILER_NAME=clang CXX=clang++-3.5 CC=clang-3.5
      addons: &clang35
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - clang-3.5

    - env: BUILD_TYPE=Release COMPILER_NAME=clang CXX=clang++-3.5 CC=clang-3.5
      addons: *clang35

install:
  - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
  - mkdir -pv "${DEPS_DIR}" && cd "${DEPS_DIR}"

  ## Update the ancient version of CMake installed on Travis...
  ## Version 3,5 has been chosen since it is the version that ships with
  ## Ubuntu 16.04 LTS and could, therefore, be considered te minimum supported
  ## version of CMake.
  - |
      if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
        CMAKE_URL="https://cmake.org/files/v3.5/cmake-3.5.2-Linux-x86_64.tar.gz"
        mkdir -p cmake
        travis_retry wget --no-check-certificate --quiet -O - "${CMAKE_URL}" | tar -xz --strip-components=1 -C cmake
        export PATH="${DEPS_DIR}/cmake/bin:${PATH}"
      fi
  - cmake --version

  ## Travis also has an older version of Boost (1.55.0) that does not contain
  ## boost::optional::value. This came about in 1.56.0... We grab a copy of
  ## version 1.58.0 which is what ships with Ubuntu 16.04 LTS and could, therefore
  ## be considered the minimum supported version of Boost.
  - |
      if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
        BOOST_URL="http://sourceforge.net/projects/boost/files/boost/1.58.0/boost_1_58_0.tar.gz"
        mkdir -p boost/boost_1_58_0
        travis_retry wget -O - "${BOOST_URL}" | tar -xz --strip-components=1 -C boost/boost_1_58_0
        export BOOST_ROOT="${DEPS_DIR}/boost/boost_1_58_0"
      fi
  - cd "${TRAVIS_BUILD_DIR}"
  - echo "${BOOST_ROOT}"

before_script:
  - mkdir -p build
  - cd build
  - cmake -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DDLIBXX_ENABLE_TESTS=ON -DBOOST_ROOT="${BOOST_ROOT}" ..

script:
  - cmake --build .
  - ctest --output-on-failure