.travis.yml

language: cpp
os: linux
dist: trusty
sudo: false

env:
  global:
    - DEPS_DIR="${HOME}/deps"
    - LOCAL_USR_DIR="${HOME}/local"
    - CMAKE_VERSION=default
    - BOOST_VERSION=1.67.0

cache:
  ccache: false
  directories:
    - ${DEPS_DIR}

matrix:
  include:
    - name: "Debug"
      env: CMAKE_OPTIONS='-DCMAKE_BUILD_TYPE=Debug' MATRIX_EVAL="export CC='gcc-7' CXX='g++-7'"
      addons: { apt: { packages: [cmake, cmake-data, 'g++-7'], sources: [ubuntu-toolchain-r-test] } }

    - name: "Release"
      env: CMAKE_OPTIONS='-DCMAKE_BUILD_TYPE=Release' MATRIX_EVAL="export CC='gcc-7' CXX='g++-7'"
      addons: { apt: { packages: [cmake, cmake-data, 'g++-7'], sources: [ubuntu-toolchain-r-test] } }

before_install:
  - set -e; # fail on the first error
  - eval "${MATRIX_EVAL}"
  - |
    echo "before_install: CC=${CC} CXX=${CXX}"
    ${CC} -v
    ${CXX} -v
    cmake --version

install:
  ### Folders ###
  - mkdir -p "${DEPS_DIR}"

  ### CMake ###
  - |
    if [[ ${CMAKE_VERSION} != 'default' ]]; then
        CMAKE_URL="https://cmake.org/files/v${CMAKE_VERSION%.*}/cmake-${CMAKE_VERSION}-Linux-x86_64.tar.gz"
        CMAKE_DIR="${DEPS_DIR}/cmake-${CMAKE_VERSION}"

        mkdir -p "${CMAKE_DIR}"
        if [[ -z "$(ls -A ${CMAKE_DIR})" ]]; then
            travis_retry wget --no-check-certificate --quiet -O - "${CMAKE_URL}" | tar --strip-components=1 -xz -C "${CMAKE_DIR}"
        fi

        export PATH="${CMAKE_DIR}/bin:${PATH}"
    fi

    export CMAKE_OPTIONS+=" -DCMAKE_CXX_COMPILER=${CXX} -DCMAKE_C_COMPILER=${CC} -DCMAKE_RULE_MESSAGES:BOOL=OFF -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON"

  ### Boost ###
  - |
    if [[ ${BOOST_VERSION} != 'default' ]]; then
        BOOST_URL="https://dl.bintray.com/boostorg/release/${BOOST_VERSION}/source/boost_${BOOST_VERSION//\./_}.tar.gz"
        BOOST_DIR="${DEPS_DIR}/boost-${BOOST_VERSION}"
        BOOST_TOOLSET=gcc
        BOOST_LIBS='program_options,system,regex,serialization,log,date_time,test,filesystem'

        mkdir -p "${BOOST_DIR}"
        if [[ -z "$(ls -A ${BOOST_DIR})" ]]; then
            BOOST_BUILD_DIR="${HOME}/boost-build"
            mkdir -p "${BOOST_BUILD_DIR}"
            travis_retry wget --no-check-certificate --quiet -O - "${BOOST_URL}" | tar --strip-components=1 -xz -C "${BOOST_BUILD_DIR}"
            cd "${BOOST_BUILD_DIR}"
            ./bootstrap.sh --with-libraries="${BOOST_LIBS}" --with-toolset="${BOOST_TOOLSET}"
            ./b2 -d0 -q toolset="${BOOST_TOOLSET}" variant=release link=shared threading=multi runtime-link=shared install --prefix="${BOOST_DIR}"
        fi

        CMAKE_OPTIONS+=" -DBOOST_ROOT='${BOOST_DIR}'"
    fi

before_script:
  - (ccache -V && ccache --show-stats && ccache --zero-stats)
  - (mkdir -p "${TRAVIS_BUILD_DIR}/Build" && cd "${TRAVIS_BUILD_DIR}/Build" && cmake .. ${CMAKE_OPTIONS})

script:
  - |
    echo "script: CC=${CC} CXX=${CXX}"
    ${CC} -v
    ${CXX} -v
    cmake --version

  - (cmake --build "${TRAVIS_BUILD_DIR}/Build" -- --no-print-directory -j$(nproc))
  - (cmake --build "${TRAVIS_BUILD_DIR}/Build" --target unit-test -- --no-print-directory -j$(nproc))

after_script:
  - set -e
  - ccache --show-stats