machine:
  timezone:
    Europe/Paris
  environment:
    PATH: "/home/ubuntu/cmake-3.11.0-Linux-x86_64/bin:$PATH"

dependencies:
  cache_directories:
    - ~/cmake-3.11.0-Linux-x86_64
  pre:
    - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
    - sudo apt-get update
    - sudo apt-get install gcc-6 g++-6
    - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-6 20 --slave /usr/bin/g++ g++ /usr/bin/g++-6
  override:
    - >
      if [ ! -d ~/cmake-3.11.0-Linux-x86_64 ]; then
        echo "No cache - building CMake"
        cd ~ && wget --quiet https://cmake.org/files/v3.11/cmake-3.11.0-Linux-x86_64.tar.gz && tar -xvf cmake-3.11.0-Linux-x86_64.tar.gz
      else
        echo "Cached CMake found"
        ls -Ahl ~/cmake-3.11.0-Linux-x86_64
      fi
    - cd build && cmake -DCMAKE_BUILD_TYPE=Debug .. && make -j