#
# Travis CI config file
#
# Copyright Tristan Brindle 2018
#
# Use, modification and distribution is subject to the
# Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
#
# Heavily based on travis.yml from Boost.Hana
#
# Copyright Louis Dionne 2013-18
#

language: cpp

os: linux
dist: xenial

# Do not build branches of the form "pr/*". By prefixing pull requests coming
# from branches inside the repository with pr/, this avoids building both the
# branch push _and_ the pull request.
# Based on https://github.com/boostorg/hana/blob/master/.travis.yml
branches:
  except: /pr\/.*/

matrix:
  include:
    #
    # Mac OS builds
    #
    - os: osx
      osx_image: xcode11.3
      env: COMPILER=clang++

    - os: osx
      osx_image: xcode11
      env: COMPILER=clang++

    - os: osx
      osx_image: xcode10.2
      env: COMPILER=clang++

    - os: osx
      osx_image: xcode10.1
      env: COMPILER=clang++

    #
    # Linux builds
    #
    # GCC 9
    - language: python
      python: "3.7"
      install:
        - pip install conan-package-tools
      env:
        - COMPILER=g++-9 
        - BUILD_SINGLE_HEADER=true
        - CONAN_GCC_VERSIONS=9
        - CONAN_DOCKER_IMAGE=conanio/gcc9
      addons:
        apt:
          packages:
            - g++-9
          sources:
            - ubuntu-toolchain-r-test

    # GCC 8
    - env: COMPILER=g++-8
      addons:
        apt:
          packages:
            - g++-8
          sources:
            - ubuntu-toolchain-r-test

    # GCC 7
    - env: COMPILER=g++-7
      addons:
        apt:
          packages:
            - g++-7
          sources:
            - ubuntu-toolchain-r-test

    # Clang 9
    - env: COMPILER=clang++-9
      addons:
        apt:
          packages:
            - clang-9
            - libc++-9-dev
            - libc++abi-9-dev
          sources:
            - ubuntu-toolchain-r-test
            - sourceline: 'deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main'
              key_url: https://apt.llvm.org/llvm-snapshot.gpg.key

    # Clang 8
    - env: COMPILER=clang++-8
      addons:
        apt:
          packages:
            - clang-8
            - libc++-8-dev
            - libc++abi-8-dev
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-xenial-8

    # Clang 7
    - env: COMPILER=clang++-7
      addons:
        apt:
          packages:
            - clang-7
            - libc++-7-dev
            - libc++abi-7-dev
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-xenial-7

    # Clang 6
    - env: COMPILER=clang++-6.0
      addons:
        apt:
          packages:
            - clang-6.0
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-xenial-6.0

    # Clang 5
    - env: COMPILER=clang++-5.0
      addons:
        apt:
          packages:
            - clang-5.0
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-xenial-5.0

install:
  - DEPS_DIR="${HOME}/deps"
  - mkdir -p ${DEPS_DIR} && cd ${DEPS_DIR}

  - if [[ "${COMPILER}" != "" ]]; then export CXX=${COMPILER}; fi
  - ${CXX} --version

  ############################################################################
  # Install libc++ and libc++abi if needed
  # Taken from https://github.com/boostorg/hana/blob/master/.travis.yml
  ############################################################################
  - |
    if [[ "$TRAVIS_OS_NAME" == "linux" && "${CXX%%+*}" == "clang" ]]; then
      if [[ "${CXX}" == "clang++-5.0" || "${CXX}" == "clang++-6.0" ]]; then
        if [[ "${CXX}" == "clang++-5.0" ]]; then LLVM_VERSION="5.0.2";
        elif [[ "${CXX}" == "clang++-6.0" ]]; then LLVM_VERSION="6.0.0";
        elif [[ "${CXX}" == "clang++-7" ]]; then LLVM_VERSION="7.0.0";
        elif [[ "${CXX}" == "clang++-8" ]]; then LLVM_VERSION="8.0.0";
        elif [[ "${CXX}" == "clang++-9" ]]; then LLVM_VERSION="9.0.0";
        fi
        LLVM_URL="http://llvm.org/releases/${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.xz"
        LIBCXX_URL="http://llvm.org/releases/${LLVM_VERSION}/libcxx-${LLVM_VERSION}.src.tar.xz"
        LIBCXXABI_URL="http://llvm.org/releases/${LLVM_VERSION}/libcxxabi-${LLVM_VERSION}.src.tar.xz"
        mkdir -p llvm llvm/build llvm/projects/libcxx llvm/projects/libcxxabi
        travis_retry wget -O - ${LLVM_URL} | tar --strip-components=1 -xJ -C llvm || exit 1
        travis_retry wget -O - ${LIBCXX_URL} | tar --strip-components=1 -xJ -C llvm/projects/libcxx || exit 1
        travis_retry wget -O - ${LIBCXXABI_URL} | tar --strip-components=1 -xJ -C llvm/projects/libcxxabi || exit 1
        (cd llvm/build && cmake .. -DCMAKE_INSTALL_PREFIX=${DEPS_DIR}/llvm/install) || exit 1
        (cd llvm/build/projects/libcxx && make install -j2) || exit 1
        (cd llvm/build/projects/libcxxabi && make install -j2) || exit 1
        export CXXFLAGS="-isystem ${DEPS_DIR}/llvm/install/include/c++/v1"
        export LDFLAGS="-L ${DEPS_DIR}/llvm/install/lib -l c++ -l c++abi"
        export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${DEPS_DIR}/llvm/install/lib"
      else
        export CXXFLAGS="-stdlib=libc++"
      fi
    fi

before_script:
  - cd $TRAVIS_BUILD_DIR
  - mkdir -p -v build

script:
  - cd build
  - cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_COMPILER=$COMPILER
  - cmake --build . --target test_nanorange -- -j2
  - ctest -j2

after_success:
  - |
    if [[ "${BUILD_SINGLE_HEADER}" == "true" ]]; then
      if [[ "${TRAVIS_PULL_REQUEST}" == "false" && "${TRAVIS_BRANCH}" == "master" ]]; then
        cmake --build . --target make_single_header
        cd ..
        ./build/tools/make_single_header include/nanorange.hpp single_include/nanorange.hpp
        # Suppress output to avoid leaking the token when the command fails
        git clone https://tcbrindle:${GITHUB_TOKEN}@github.com/tcbrindle/nanorange --depth 1 checkout &>/dev/null
        rm -rf checkout/single_include/nanorange.hpp
        cp -R single_include/nanorange.hpp checkout/single_include/nanorange.hpp
        pushd checkout
            git config --global user.name "Travis Bot"
            git config --global user.email "travis@travis-ci.org"
            git add --all .
            git commit --allow-empty -m "[skip ci] Update single header"
            # Suppress output to avoid leaking the token
            travis_retry git push origin master &>/dev/null
            popd
        python .conan/build.py
      fi
    fi


notifications:
  email: off