language: cpp
sudo: false
matrix:
  include:
  - os: linux
    env: PYTHON=2.7 CPP=11 GCC=4.8
    addons:
      apt:
        sources: [ubuntu-toolchain-r-test, kubuntu-backports]
        packages: [g++-4.8, cmake]
  - os: linux
    env: PYTHON=3.5 CPP=11 GCC=4.8
    addons:
      apt:
        sources: [ubuntu-toolchain-r-test, kubuntu-backports, deadsnakes]
        packages: [g++-4.8, cmake, python3.5-dev]
  - sudo: true
    services: docker
    env: PYTHON=2.7 CPP=14 GCC=6
  - sudo: true
    services: docker
    env: PYTHON=3.5 CPP=14 GCC=6
  - os: osx
    osx_image: xcode7.3
    env: PYTHON=2.7 CPP=14 CLANG
  - os: osx
    osx_image: xcode7.3
    env: PYTHON=3.5 CPP=14 CLANG
  # A barebones build makes sure everything still works without optional deps (numpy/scipy/eigen)
  # and also tests the automatic discovery functions in CMake (Python version, C++ standard).
  - os: linux
    env: BAREBONES
    addons:
      apt:
        sources: [ubuntu-toolchain-r-test, kubuntu-backports]
        packages: [g++-4.8, cmake]
    install: pip install pytest
  # Documentation build:
  - os: linux
    language: docs
    env: DOCS STYLE
    install: pip install sphinx sphinx_rtd_theme
    script:
    - make -C docs html SPHINX_OPTIONS=-W
    - tools/check-style.sh
cache:
  directories:
  - $HOME/.cache/pip
  - $HOME/Library/Caches/pip
before_install:
- |
  # Configure build variables
  if [ "$TRAVIS_OS_NAME" = "linux" ]; then
    if [ -z "$GCC" ]; then export GCC=4.8; fi
    export CXX=g++-$GCC CC=gcc-$GCC;
    if [ "$GCC" = "6" ]; then export DOCKER=debian:testing CXX=g++ CC=gcc; fi
  elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
    export CXX=clang++ CC=clang;
  fi
  if [ -n "$CPP" ]; then export CPP=-std=c++$CPP; fi
  if [ "${PYTHON:0:1}" = "3" ]; then export PY=3; fi
- |
  # Initialize enviornment
  if [ -n "$DOCKER" ]; then
    docker pull $DOCKER
    export containerid=$(docker run --detach --tty \
      --volume="$PWD":/pybind11 --workdir=/pybind11 \
      --env="CC=$CC" --env="CXX=$CXX" --env="DEBIAN_FRONTEND=$DEBIAN_FRONTEND" \
      --env=GCC_COLORS=\  \
      $DOCKER)
    docker exec --tty "$containerid" apt-get update
    docker exec --tty "$containerid" apt-get -y upgrade
    export SCRIPT_RUN_PREFIX="docker exec --tty $containerid"
  else
    if [ "$TRAVIS_OS_NAME" = "linux" ]; then
      pip install --user --upgrade pip virtualenv
      virtualenv -p python$PYTHON venv
    elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
      if [ "$PY" = "3" ]; then
        brew update; brew install python$PY;
      else
        curl -fsSL -O https://bootstrap.pypa.io/get-pip.py
        sudo -H python get-pip.py
      fi
      pip$PY install --user --upgrade pip virtualenv
      python$PY -m virtualenv venv
    fi
    source venv/bin/activate
  fi
install:
- |
  # Install dependencies
  if [ -n "$DOCKER" ]; then
    docker exec --tty "$containerid" apt-get -y --no-install-recommends install \
      python$PYTHON-dev python$PY-pytest python$PY-scipy \
      libeigen3-dev cmake make g++
  else
    pip install numpy scipy pytest

    wget -q -O eigen.tar.gz https://bitbucket.org/eigen/eigen/get/3.2.9.tar.gz
    tar xzf eigen.tar.gz
    export CMAKE_EXTRA_ARGS="${CMAKE_EXTRA_ARGS} -DCMAKE_INCLUDE_PATH=$PWD/eigen-eigen-dc6cfdf9bcec"
  fi
script:
- $SCRIPT_RUN_PREFIX cmake ${CMAKE_EXTRA_ARGS}
    -DPYBIND11_PYTHON_VERSION=$PYTHON
    -DPYBIND11_CPP_STANDARD=$CPP
    -DPYBIND11_WERROR=ON
- $SCRIPT_RUN_PREFIX make pytest -j 2
after_script:
- if [ -n "$DOCKER" ]; then docker stop "$containerid"; docker rm "$containerid"; fi