.travis.yml

# Copyright Glen Knowles 2016 - 2017.
# Distributed under the Boost Software License, Version 1.0.
language: cpp
sudo: false
dist: trusty

addons:
  apt:
    packages: &packages
      - g++-6
      - g++-7
      - clang-3.6
      - clang-3.9
      - clang-4.0
    sources: &sources
      - ubuntu-toolchain-r-test
      - llvm-toolchain-precise-3.6
      - llvm-toolchain-precise-3.9
      - llvm-toolchain-trusty-4.0

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

# Why must we work so hard to get a recent cmake?
install:
  - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
  - mkdir -p ${DEPS_DIR} && cd ${DEPS_DIR}
  - |
    if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
      if [[ -z "$(ls -A ${DEPS_DIR}/cmake/bin)" ]]; then
        CMAKE_URL="http://www.cmake.org/files/v3.6/cmake-3.6.3-Linux-x86_64.tar.gz"
        mkdir -p cmake && travis_retry wget --no-check-certificate --quiet -O - \
            ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
      fi
      export PATH=${DEPS_DIR}/cmake/bin:${PATH}
    else
      if ! brew ls --version cmake &>/dev/null; then brew install cmake; fi
    fi
  - cd ${TRAVIS_BUILD_DIR}

matrix:
  include:
    - env: CXX_NAME=g++-6 CC_NAME=gcc-6
      addons:
        apt:
          packages: ['g++-6']
          sources: *sources
    - env: CXX_NAME=g++-7 CC_NAME=gcc-7
      addons:
        apt:
          packages: ['g++-7']
          sources: *sources
    # uses experimental/filesystem from g++-6 package... :/
    - env: CXX_NAME=clang++-3.6 CC_NAME=clang-3.6
      addons:
        apt:
          packages: ['clang-3.6', 'g++-6'] 
          sources: *sources
    - env: CXX_NAME=clang++-3.9 CC_NAME=clang-3.9
      addons:
        apt:
          packages: ['clang-3.9', 'g++-6']
          sources: *sources
    - env: CXX_NAME=clang++-4.0 CC_NAME=clang-4.0
      addons:
        apt:
          packages: ['clang-4.0', 'g++-6']
          sources: *sources

script:
  - export CXX=${CXX_NAME} CC=${CC_NAME}
  - mkdir -p build && cd build
  - cmake ..
  - cmake --build .
  - ../bin/cli

notifications:
  email:
    on_success: change
    on_failure: change