sudo: false

language: cpp

os:
  - linux

compiler:
  - gcc
  - clang

cache:
  - ccache

stages:
  - canary
  - test

jobs:
    include:
        - stage: canary
          env: CMAKE_BUILD_TYPE=Release BACKEND="OPENMP"
          os: linux

branches:
  only:
  - master
  - develop
  - /^release/

env:
  -
#  - BACKEND="OPENMP"
  - BACKEND="PTHREAD"
  - CMAKE_BUILD_TYPE=Debug COVERAGE=yes GTEST_FILTER="-*DeathTest*"
  - CMAKE_BUILD_TYPE=Debug BACKEND="OPENMP" COVERAGE=yes GTEST_FILTER="-*DeathTest*"
#  - CMAKE_BUILD_TYPE=Debug BACKEND="PTHREAD" COVERAGE=yes
  - CMAKE_BUILD_TYPE=Release
  - CMAKE_BUILD_TYPE=Release BACKEND="OPENMP"
#  - CMAKE_BUILD_TYPE=Release BACKEND="PTHREAD"

matrix:
  exclude:
    - os: linux
      compiler: gcc
      env: CMAKE_BUILD_TYPE=Release BACKEND="OPENMP"

# Install newer CMake. The distribution comes with CMake 3.12.4 but we require at least 3.16
install:
  - CMAKE_VERSION=3.17.1
  - CMAKE_DIR=/opt/cmake
  - CMAKE_KEY=2D2CEF1034921684 &&
    CMAKE_URL=https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION} &&
    CMAKE_SCRIPT=cmake-${CMAKE_VERSION}-Linux-x86_64.sh &&
    CMAKE_SHA256=cmake-${CMAKE_VERSION}-SHA-256.txt &&
    wget --quiet ${CMAKE_URL}/${CMAKE_SHA256} &&
    wget --quiet ${CMAKE_URL}/${CMAKE_SHA256}.asc &&
    wget --quiet ${CMAKE_URL}/${CMAKE_SCRIPT} &&
    #gpg --keyserver pool.sks-keyservers.net --recv-keys ${CMAKE_KEY} &&
    #gpg --verify ${CMAKE_SHA256}.asc ${CMAKE_SHA256} &&
    #grep ${CMAKE_SCRIPT} ${CMAKE_SHA256} | sha256sum --check &&
    mkdir -p ${CMAKE_DIR} &&
    sh ${CMAKE_SCRIPT} --skip-license --prefix=${CMAKE_DIR} &&
    rm cmake*
  - PATH=${CMAKE_DIR}/bin:$PATH
  - cd ${TRAVIS_BUILD_DIR}

before_script:
  - ccache -z
  - if [[ ${COVERAGE} ]]; then export CXX="${CXX} --coverage"; fi
  - if [[ ! ${CMAKE_BUILD_TYPE} ]]; then export CXXFLAGS="${CXXFLAGS} -O2"; fi

script:
  - export OMP_NUM_THREADS=2
  - export OMP_PLACES=threads
  - export OMP_PROC_BIND=spread
  # LD_LIBRARY_PATH workaround to find clang's libomp: https://github.com/travis-ci/travis-ci/issues/8613
  - if [[ ${CC} = clang ]]; then export LD_LIBRARY_PATH=/usr/local/clang/lib${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH; fi
  # enable ccache for clang on linux and add CCACHE_CPP2 to avoid 'Argument unused during compilation -I...' warning
  - if [[ ${TRAVIS_OS_NAME} = linux && ${CC} = clang ]]; then
      ln -s /usr/bin/ccache $HOME/bin/clang++;
      export CCACHE_CPP2=yes;
    fi
  - mkdir build &&
    pushd build &&
    cmake ..
          ${BACKEND:+-DKokkos_ENABLE_${BACKEND}=On}
          -DCMAKE_CXX_FLAGS="${CXXFLAGS} -Werror"
          -DCMAKE_CXX_STANDARD=14
          -DKokkos_ENABLE_COMPILER_WARNINGS=ON
          -DKokkos_ENABLE_TESTS=On
          ${CMAKE_BUILD_TYPE:+-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}} &&
    make VERBOSE=1 -j2 &&
    travis_wait 60 make test CTEST_OUTPUT_ON_FAILURE=1 &&
    make install DESTDIR=${PWD}/install && rm -rf ${PWD}/install/usr/local && rmdir ${PWD}/install/usr &&
    popd

after_success:
  - ccache -s
  - if [[ ${COVERAGE} ]]; then
      mkdir -p $HOME/.local/bin && wget -O $HOME/.local/bin/codecov https://codecov.io/bash && chmod +x $HOME/.local/bin/codecov;
      pushd build &&
      if [[ ${CC} = clang* ]]; then
        codecov -x "llvm-cov gcov" -F "${CC}";
      else
        codecov -x gcov -F "${CC}";
      fi;
    fi