.travis.yml

sudo: false
dist: trusty
python: "3.5"

cache:
  apt: true
  directories:
    - $HOME/.cache/spack
    - $HOME/.cache/cmake-3.11.0
    - $HOME/.cache/kcov-35
    - $HOME/Library/Caches/Homebrew
  pip: true

env:
  global:
    - BUILD: ~/buildTmp
    - SPACK_ROOT: $HOME/.cache/spack
    - PATH: $PATH:$HOME/.cache/spack/bin
    - BUILD_TYPE: "Debug"
    - PYBIND11_VERSION=@2.3.0
    - USE_SHARED: ON

addons:
  apt:
    &apt_common_sources
    sources:
      - ubuntu-toolchain-r-test

jobs:
  fast_finish: true
  include:
    ###########################################################################
    # Stage: Style                                                            #
    ###########################################################################
    - &style_python
      stage: 'Style'
      name: PY@3.5 +PEP8
      language: python
      python: "3.5"
      install: pip install -U flake8
      script:
        # Test Python Files for PEP8 conformance
        - flake8 --exclude=thirdParty .
    - <<: *style_python
      name: PY@3.6 +PEP8
      python: "3.6"
    - <<: *style_python
      name: PY@3.7 +PEP8
      python: "3.7"
      dist: xenial
      sudo: true
    # - &style_cpp
    #   stage: 'Style'
    #   name: clang-format@5.0.0
    #   language: python
    #   python: "3.6"
    #   addons:
    #     apt:
    #       sources:
    #         - llvm-toolchain-trusty-5.0
    #       packages:
    #         - clang-format-5.0
    #   install:
    #     - curl -sOL https://raw.githubusercontent.com/Sarcasm/run-clang-format/master/run-clang-format.py
    #   script:
    #     - python run-clang-format.py --clang-format-executable=$(which clang-format-5.0) --extensions cpp,hpp -j 2 -e *share/openPMD* -r $TRAVIS_BUILD_DIR || exit 1
    ###########################################################################
    # Stage: Static Code Analysis                                             #
    ###########################################################################
    - &static_code_cpp
      stage: 'Static Code Analysis'
    #   name: clang@5.0.0 +IncludeWhatYouUse
    #   sudo: true
      language: python
      python: "3.6"
      dist: xenial
      compiler: clang
    #   env:
    #     - CXXSPEC="%clang@5.0.0" USE_MPI=ON USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON
    #   addons:
    #     apt:
    #       packages:
    #         - llvm-5.0-dev
    #         - libclang-5.0-dev
    #         - clang-5.0
    #         - libopenmpi-dev
    #         - openmpi-bin
    #         - environment-modules
    #   before_install:
    #     - export CC=clang
    #     - export CXX=clang++
    #     - ROOT_PATH=`llvm-config-5.0 --prefix`
    #     - BIN_PATH=`llvm-config-5.0 --bindir`
    #     - if [ ! -f $BIN_PATH/iwyu_tool.py ]; then
    #         git clone https://github.com/include-what-you-use/include-what-you-use.git &&
    #         cd include-what-you-use &&
    #         git checkout clang_5.0 &&
    #         mkdir build &&
    #         cd build &&
    #         cmake -DIWYU_LLVM_ROOT_PATH=$ROOT_PATH -DCMAKE_C_COMPILER=$BIN_PATH/clang -DCMAKE_CXX_COMPILER=$BIN_PATH/clang++ -DCMAKE_INSTALL_PREFIX=$ROOT_PATH .. &&
    #         make -j2 &&
    #         sudo make install &&
    #         cd ../.. &&
    #         rm -rf include-what-you-use;
    #       fi
    #     - export PATH=$ROOT_PATH/bin:$PATH
    #   before_script:
    #     - mkdir -p $HOME/build
    #     - cd $HOME/build
    #     - cmake
    #         -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
    #         -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
    #         -DopenPMD_USE_MPI=$USE_MPI
    #         -DopenPMD_USE_HDF5=$USE_HDF5
    #         -DopenPMD_USE_ADIOS1=$USE_ADIOS1
    #         -DopenPMD_USE_ADIOS2=$USE_ADIOS2
    #         -DopenPMD_USE_PYTHON=OFF
    #         -DopenPMD_USE_INVASIVE_TESTS=ON
    #         -DBUILD_SHARED_LIBS=${USE_SHARED}
    #         $TRAVIS_BUILD_DIR
    #   script:
    #     - cd $HOME/build
    #     - python $BIN_PATH/iwyu_tool.py -v -j 2 -p . > iwyu.log
    #     - cat iwyu.log
    #     - if [[ $(wc -m <iwyu.log) -gt 1 ]]; then
    #         exit 1;
    #       fi
    # - <<: *static_code_cpp
      name: clang-tidy@5.0.0 +MPI -PY +H5 +ADIOS1 +ADIOS2
      sudo: false
      env:
        - CXXSPEC="%clang@5.0.0" USE_MPI=ON USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON
      addons:
        apt:
          packages:
            - clang-5.0
            - clang-tidy-5.0
            - libopenmpi-dev
            - openmpi-bin
            - environment-modules
      before_install:
        - CC=clang CXX=clang++
      before_script:
        - CXXFLAGS="${CXXFLAGS} -Werror"
        - mkdir -p $HOME/build
        - cd $HOME/build
        - $TRAVIS_BUILD_DIR/.travis/download_samples.sh
        - cmake
            -DCMAKE_CXX_CLANG_TIDY="$(which clang-tidy-5.0);-system-headers=0"
            -DCMAKE_BUILD_TYPE=Release
            -DopenPMD_USE_MPI=$USE_MPI
            -DopenPMD_USE_HDF5=$USE_HDF5
            -DopenPMD_USE_ADIOS1=$USE_ADIOS1
            -DopenPMD_USE_ADIOS2=$USE_ADIOS2
            -DopenPMD_USE_PYTHON=$USE_PYTHON
            -DopenPMD_USE_INVASIVE_TESTS=ON
            -DBUILD_SHARED_LIBS=${USE_SHARED}
            $TRAVIS_BUILD_DIR
      script:
        - cd $HOME/build
        - make -j 2 2> clang-tidy.log
        - cat clang-tidy.log
        - if [[ $(wc -m <clang-tidy.log) -gt 1 ]]; then
            exit 1;
          fi
    - &static_code_python
      stage: 'Static Code Analysis'
      name: pyflakes 3.5
      language: python
      python: "3.5"
      install: pip install -U pyflakes
      script:
        # Warnings, unused code, etc.
        - pyflakes docs/ examples/ test/
    - <<: *static_code_python
      name: pyflakes 3.6
      python: "3.6"
    - <<: *static_code_python
      name: pyflakes 3.7
      python: "3.7"
      dist: xenial
      sudo: true
    ###########################################################################
    # Stage: C++ Unit Tests                                                   #
    ###########################################################################
    # Clang 5.0.0
    - &test-cpp-unit
      stage: 'C++ Unit Tests'
      name: clang@5.0.0 -MPI -PY +H5 -ADIOS1 -ADIOS2
      language: cpp
      dist: xenial
      env:
        - CXXSPEC="%clang@5.0.0" USE_MPI=OFF USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=OFF USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: clang
      addons:
        apt:
          <<: *apt_common_sources
          packages: &clang_deps
            - environment-modules
            - clang-5.0
            - clang-tidy-5.0
            - gfortran-4.9
            - g++-4.9  # CMake build
      before_install:            
        - CXX=clang++-5.0 && CC=clang-5.0
      script: &script-cpp-unit
        - mkdir -p $HOME/build
        - cd $HOME/build
        - if [ ! -d samples/git-sample/ ]; then
            if [ "$USE_SAMPLES" == "ON" ]; then
              $TRAVIS_BUILD_DIR/.travis/download_samples.sh;
              chmod u-w samples/git-sample/*.h5;
            fi
          fi
        - if [ "$USE_PYTHON" == "ON" ]; then
            export EXTRA_CMAKE_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=$(which python3)";
            if [ "$USE_INTERNAL_PYBIND11" == "OFF" ]; then
              export EXTRA_CMAKE_FLAGS="$EXTRA_CMAKE_FLAGS -DopenPMD_USE_INTERNAL_PYBIND11=OFF";
            fi;
          fi
        # build
        - CXXFLAGS="${CXXFLAGS} -Werror" CXX=${CXX} CC=${CC}
          cmake
            -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
            -DopenPMD_USE_MPI=$USE_MPI
            -DopenPMD_USE_HDF5=$USE_HDF5
            -DopenPMD_USE_ADIOS1=$USE_ADIOS1
            -DopenPMD_USE_ADIOS2=$USE_ADIOS2
            -DopenPMD_USE_PYTHON=$USE_PYTHON
            -DopenPMD_USE_INVASIVE_TESTS=ON
            -DBUILD_SHARED_LIBS=${USE_SHARED}
            $EXTRA_CMAKE_FLAGS
            -DCMAKE_INSTALL_PREFIX=$HOME/openPMD-test-install
            $TRAVIS_BUILD_DIR
        - make -j 2
        # run tests
        #   pybind11: work-around for missing symbols with sanitizers
        #   /usr/local/clang-7.0.0/lib/clang/7.0.0/lib/linux/libclang_rt.asan-x86_64.so
        #   /usr/local/clang-7.0.0/lib/clang/7.0.0/lib/linux/libclang_rt.ubsan_minimal-x86_64.so
        - if [ "$USE_PYTHON" == "ON" ] && [ ! -z ${ASAN_OPTIONS+x} ]; then
            export LD_PRELOAD=/usr/local/clang-7.0.0/lib/clang/7.0.0/lib/linux/libclang_rt.asan-x86_64.so;
          fi
        - CTEST_OUTPUT_ON_FAILURE=1 travis_wait make test
        - if [ ! -z ${LD_PRELOAD+x} ]; then
            unset LD_PRELOAD;
          fi
        # install
        - make install
        # - make package
        # - dpkg -i openPMD*.deb
        - ls -R $HOME/openPMD-test-install | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/   /' -e 's/-/|/'
    - <<: *test-cpp-unit
      name: clang@5.0.0 +MPI -PY +H5 +ADIOS1 +ADIOS2
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%clang@5.0.0" USE_MPI=ON USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON USE_SAMPLES=ON
      compiler: clang
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - *clang_deps
            - libopenmpi-dev
            - openmpi-bin
      script: *script-cpp-unit
      before_install:
        - CXX=clang++-5.0 && CC=clang-5.0
    # Clang 6.0.0 + Python 3.6.3 @ Xenial
    - <<: *test-cpp-unit
      name: clang@6.0.0 -MPI +PY@3.6 +H5 +ADIOS1 +ADIOS2 libc++
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%clang@6.0.0" USE_MPI=OFF USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON USE_SAMPLES=ON
      compiler: clang
      addons:
        apt:
          <<: *apt_common_sources
          packages: &clang60_deps
            - environment-modules
            - clang-6.0
            - libc++-dev
            - libc++abi-dev
      script: *script-cpp-unit
      before_install: &clang_init
        # FIXME: extra include needed https://bugs.launchpad.net/ubuntu/+source/libc++/+bug/1812133
        - CXX=clang++-6.0 && CC=clang-6.0 && CXXFLAGS="${CXXFLAGS} -stdlib=libc++ -I/usr/include/libcxxabi/"
    # Clang 7.0.0 + Python 3.8.0 @ Xenial
    - <<: *test-cpp-unit
      name: clang@7.0.0 +MPI +PY@3.8 +H5 +ADIOS1 +ADIOS2 +Release
      dist: xenial
      language: python
      python: "3.8"
      env:
        - CXXSPEC="%clang@7.0.0" USE_MPI=ON USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON USE_SAMPLES=ON BUILD_TYPE="Release"
      compiler: clang
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - *clang_deps
            - libopenmpi-dev
            - openmpi-bin
      script: *script-cpp-unit
      before_install: &clang_init
        - CXX=clang++ && CC=clang
    # Clang 7.0.0 + Python 3.7.1 + Address Sanitizer + Undefined Behavior Sanitizer @ Xenial
    - <<: *test-cpp-unit
      name: clang@7.0.0 +MPI +PY@3.7 +H5 -ADIOS1 +ADIOS2 +ASan +UBSan +STATIC
      dist: xenial
      language: python
      python: "3.7"
      env:
        - CXXSPEC="%clang@7.0.0" USE_MPI=ON USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=OFF USE_ADIOS2=ON USE_SHARED=OFF USE_SAMPLES=ON
        # sanitizer options: test as much as possible and suppress OpenMPI memory leaks
        - ASAN_OPTIONS=detect_stack_use_after_return=1:detect_leaks=1:check_initialization_order=true:strict_init_order=true:detect_stack_use_after_scope=1:fast_unwind_on_malloc=0
        - LSAN_OPTIONS=suppressions=${TRAVIS_BUILD_DIR}/.travis/sanitizer/clang/Leak.supp
      compiler: clang
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - *clang_deps
            - libopenmpi-dev
            - openmpi-bin
      script: *script-cpp-unit
      before_install:
        - CXX=clang++ && CC=clang && CXXFLAGS="${CXXFLAGS} -fsanitize=address,undefined -shared-libsan" && LDFLAGS="-fsanitize=address,undefined -shared-libsan"
        # - find / -name libclang_rt*
    # Clang 9.1.0-apple + Python 3.7.2 @ OSX "highsierra"
    - <<: *test-cpp-unit
      name: AppleClang@9.1.0 -MPI +PY@3.7 +H5 +ADIOS1 -ADIOS2
      os: osx
      osx_image: xcode9.4
      sudo: required
      language: generic
      env:
        - CXXSPEC="%clang@9.1.0" USE_MPI=OFF USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: clang
      script: *script-cpp-unit
      before_install:
        - CXX=clang++ && CC=clang
        - perl --version
    # Clang 10.0.0-apple + Python 3.7.2 @ OSX "mojave" with libc++
    - <<: *test-cpp-unit
      name: AppleClang@10.0.0 -MPI +PY@3.7 +H5 -ADIOS1 +ADIOS2 libc++
      os: osx
      osx_image: xcode10.1
      sudo: required
      language: generic
      env:
        - CXXFLAGS="${CXXFLAGS} -stdlib=libc++" CXXSPEC="%clang@10.0.0" USE_MPI=OFF USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=OFF USE_ADIOS2=ON USE_SAMPLES=ON
      compiler: clang
      script: *script-cpp-unit
      before_install:
        - CXX=clang++ && CC=clang
        - perl --version
    # GCC 4.9.4
    - <<: *test-cpp-unit
      name: gcc@4.9.4 -MPI -PY +H5 +ADIOS1 +ADIOS2
      dist: trusty
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%gcc@4.9.4" USE_MPI=OFF USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON USE_SAMPLES=OFF
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages: &gcc49_deps
            - environment-modules
            - gfortran-4.9
            - gcc-4.9
            - g++-4.9
      before_install: &gcc49_init
        - CXX=g++-4.9 && CC=gcc-4.9
      script: *script-cpp-unit
    - <<: *test-cpp-unit
      name: gcc@4.9.4 +MPI -PY +H5 +ADIOS1 -ADIOS2
      dist: trusty
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%gcc@4.9.4" USE_MPI=ON USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - *gcc49_deps
            - libopenmpi-dev
            - openmpi-bin
      before_install: *gcc49_init
      script: *script-cpp-unit
    # GCC 7.4.0
    - <<: *test-cpp-unit
      name: gcc@7.4.0 -MPI -PY +H5 +ADIOS1 +ADIOS2@2.4.0
      dist: trusty
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%gcc@7.4.0" USE_MPI=OFF USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=ON ADIOS2_VERSION=@2.4.0 USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages: &gcc73_deps
            - environment-modules
            - gfortran-7
            - gcc-7
            - g++-7
      before_install: &gcc73_init
        - CXX=g++-7 && CC=gcc-7
      script: *script-cpp-unit
    - <<: *test-cpp-unit
      name: gcc@7.4.0 +MPI -PY +H5 +ADIOS1 -ADIOS2
      dist: trusty
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%gcc@7.4.0" USE_MPI=ON USE_PYTHON=OFF USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - *gcc73_deps
            - libopenmpi-dev
            - openmpi-bin
      before_install: *gcc73_init
      script: *script-cpp-unit
    # GCC 6.5.0 + Python 3.5
    - <<: *test-cpp-unit
      name: gcc@6.5.0 -MPI +PY@3.5 +H5 +ADIOS1@1.13.1 -ADIOS2
      dist: trusty
      language: python
      python: "3.5"
      env:
        - CXXSPEC="%gcc@6.5.0" USE_MPI=OFF USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=ON ADIOS1_VERSION=@1.13.1 USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages: &gcc64_deps
            - environment-modules
            - gfortran-6
            - gcc-6
            - g++-6
      before_install: &gcc64_init
        - CXX=g++-6 && CC=gcc-6
      script: *script-cpp-unit
    # GCC 8.1.0 + Python 3.7
    - <<: *test-cpp-unit
      name: gcc@8.1.0 -MPI +PY@3.7 +H5 +ADIOS1 -ADIOS2 +STATIC
      language: python
      python: "3.7"
      sudo: required
      dist: xenial
      env:
        - CXXSPEC="%gcc@8.1.0" USE_MPI=OFF USE_PYTHON=ON USE_INTERNAL_PYBIND11=OFF PYBIND11_VERSION=@2.3.0 USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=OFF USE_SHARED=OFF USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages: &gcc81_deps
            - environment-modules
            - gfortran-8
            - gcc-8
            - g++-8
      before_install: &gcc81_init
        - CXX=g++-8 && CC=gcc-8
      script: *script-cpp-unit
    # GCC 6.5.0 + Python 3.6
    - <<: *test-cpp-unit
      name: gcc@6.5.0 -MPI +PY@3.6 +H5@1.8.13 -ADIOS1 -ADIOS2
      dist: trusty
      language: python
      python: "3.6"
      env:
        - CXXSPEC="%gcc@6.5.0" USE_MPI=OFF USE_PYTHON=ON USE_INTERNAL_PYBIND11=OFF USE_HDF5=ON HDF5_VERSION=@1.8.13 USE_ADIOS1=OFF USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - *gcc64_deps
      before_install: *gcc64_init
      script: *script-cpp-unit
    # GCC 4.8.5 + Python 3.5.5
    - <<: *test-cpp-unit
      name: gcc@4.8.5 -MPI +PY@3.5 +H5 -ADIOS1 -ADIOS2
      dist: trusty
      language: python
      python: "3.5"
      env:
        - CXXSPEC="%gcc@4.8.5" USE_MPI=OFF USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=OFF USE_ADIOS2=OFF USE_SAMPLES=ON
      compiler: gcc
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - environment-modules
            - gfortran
            - g++
            - libopenmpi-dev
            - openmpi-bin
      before_install: &gcc48_init
        - CXX=g++-4.8 && CC=gcc-4.8
      script: *script-cpp-unit
    ###########################################################################
    # Stage: Code Coverage                                                    #
    ###########################################################################
    - &code_coverage
      stage: 'Code Coverage'
      name: gcc@7.4.0 +MPI +PY +H5 +ADIOS1 -ADIOS2 +coveralls
      sudo: required
      language: python
      python: "3.6"
      compiler: gcc
      env:
        - CXXSPEC="%gcc@7.4.0" USE_MPI=ON USE_PYTHON=ON USE_HDF5=ON USE_ADIOS1=ON USE_ADIOS2=OFF
      addons:
        apt:
          <<: *apt_common_sources
          packages:
            - binutils-dev
            - libcurl4-openssl-dev
            - zlib1g-dev
            - libdw-dev
            - libiberty-dev
            - environment-modules
            - gfortran-7
            - gcc-7
            - g++-7
            - libopenmpi-dev
            - openmpi-bin
      before_install:
        - CXX=g++-7 && CC=gcc-7
        - if [ ! -f $HOME/.cache/kcov-35/bin/kcov ]; then
            wget -O kcov-35.tar.gz https://github.com/SimonKagstrom/kcov/archive/v35.tar.gz &&
            tar -xf kcov-35.tar.gz &&
            cd kcov-35 &&
            mkdir build &&
            cd build &&
            cmake -DCMAKE_INSTALL_PREFIX=$HOME/.cache/kcov-35 .. &&
            make -j2 &&
            make install &&
            cd ../.. &&
            rm -rf kcov-35 kcov-35.tar.gz;
          fi;
        - export PATH=$HOME/.cache/kcov-35/bin:$PATH
      before_script:
        - mkdir -p $HOME/build
        - cd $HOME/build
        - if [ ! -d samples/git-sample/ ]; then
            $TRAVIS_BUILD_DIR/.travis/download_samples.sh;
            chmod u-w samples/git-sample/*.h5;
          fi
        - CXXFLAGS="-g -O0 -fprofile-arcs -ftest-coverage" CXX=$CXX CC=$CC
          cmake
            -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
            -DopenPMD_USE_MPI=$USE_MPI
            -DopenPMD_USE_HDF5=$USE_HDF5
            -DopenPMD_USE_ADIOS1=$USE_ADIOS1
            -DopenPMD_USE_ADIOS2=$USE_ADIOS2
            -DopenPMD_USE_PYTHON=OFF
            -DopenPMD_USE_INVASIVE_TESTS=ON
            -DBUILD_SHARED_LIBS=${USE_SHARED}
            $TRAVIS_BUILD_DIR
        - make -j 2
      script:
        - mkdir -p coverage
        - cd bin
        # TODO code coverage with mpirun
        - for OPENPMD_BP_PROVIDER in "ADIOS1"; do
            export OPENPMD_BP_PROVIDER;
            for binary in *; do
              if [ -f $binary ]; then
                kcov --exclude-pattern=/usr/,share/openPMD/thirdParty,/test/ ../coverage/$binary $binary;
              fi;
            done
          done
      after_script:
        - kcov --merge --coveralls-id=$TRAVIS_JOB_ID ../coverage/merged ../coverage/*
    - stage: 'Code Coverage'
      name: Coverity
      if: branch = coverity_scan
      sudo: required
      dist: xenial
      language: python
      python: "3.6"
      compiler: gcc
      before_install:
        - echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-certificates.crt
      install:
        - export CXXFLAGS="-Wall -Wextra"
        # adios.pc file has typo: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900811
        # ... but xenial only ships 1.9.0
        # - sed -i 's/find_package(ADIOS 1\.13\.1/find_package(ADIOS/g' CMakeLists.txt
      script:
        # nothing to do but required by Travis
        - echo "Coverity scan! (script)"
      addons:
        apt:
          packages:
            - libopenmpi-dev
            - openmpi-bin
            - libhdf5-openmpi-dev
            - libadios-dev
            - libadios-bin
        coverity_scan:
          project:
            name: "openPMD/openPMD-api"
            description: "C++ & Python API for Scientific I/O with openPMD"
          notification_email: axel.huebl@plasma.ninja
          build_command_prepend: "mkdir coverity_build; cd coverity_build; . ../.travis/download_samples.sh; cmake .. -DPYTHON_EXECUTABLE:FILEPATH=$(which python3); cd .."
          build_command: "make -C coverity_build -j 2"
          branch_pattern: coverity_scan

install:
  # spack install
  - SPACK_FOUND=$(which spack >/dev/null && { echo 0; } || { echo 1; })
  - if [ $SPACK_FOUND -ne 0 ]; then
      mkdir -p $SPACK_ROOT &&
      git clone --depth 50 https://github.com/spack/spack.git $SPACK_ROOT;
    fi
  # spack setup
  - source /etc/profile
  - cp $TRAVIS_BUILD_DIR/.travis/spack/*.yaml
       $SPACK_ROOT/etc/spack/
  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then
      export HOMEBREW_NO_AUTO_UPDATE=1 &&
      travis_wait 20 brew update;
      travis_wait 20 brew install python3;
      travis_wait 20 brew install numpy;
      travis_wait 20 brew upgrade numpy;
      travis_wait 20 brew install modules &&
      brew info modules &&
      source /usr/local/opt/modules/init/bash &&
      export PATH=/usr/local/opt/python/libexec/bin:$PATH;
      export TRAVIS_PYTHON_VERSION=3.7.2;
    fi
  - source $SPACK_ROOT/share/spack/setup-env.sh
  # fresh (cache-cleaned) travis runs seem to not properly init environment-modules
  - echo $MODULEPATH
  - if [[ ! $MODULEPATH = *"spack"* ]]; then
      export MODULEPATH=$SPACK_ROOT/share/spack/modules/$(spack arch):$MODULEPATH;
    fi
  # required dependencies - CMake 3.11.0
  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then
      if [ ! -f $HOME/.cache/cmake-3.11.0/bin/cmake ]; then
        wget -O cmake.sh https://cmake.org/files/v3.11/cmake-3.11.0-Linux-x86_64.sh &&
        sh cmake.sh --skip-license --exclude-subdir --prefix=$HOME/.cache/cmake-3.11.0 &&
        rm cmake.sh;
        spack install cmake@3.11.0 $CXXSPEC;
      fi;
    else
      if [ ! -d /Applications/CMake.app/Contents/ ]; then
        curl -L -s -o cmake.dmg https://cmake.org/files/v3.11/cmake-3.11.0-Darwin-x86_64.dmg &&
        yes | hdiutil mount cmake.dmg &&
        sudo cp -R "/Volumes/cmake-3.11.0-Darwin-x86_64/CMake.app" /Applications &&
        hdiutil detach /dev/disk1s1 &&
        rm cmake.dmg;
        spack install cmake@3.11.0 $CXXSPEC;
      fi;
    fi
  - spack load cmake@3.11.0 $CXXSPEC
  # diagnostics: modules created and visible?
  - module av
  - module li
  # optional dependencies - MPI, HDF5, ADIOS1, ADIOS2
  - SPACK_VAR_MPI="~mpi";
  - if [ $USE_MPI == "ON" ]; then
      travis_wait spack install
        openmpi
        $CXXSPEC &&
      spack load openmpi $CXXSPEC;
      SPACK_VAR_MPI="+mpi";
    fi
  - if [ $USE_PYTHON == "ON" ]; then
      travis_wait spack install
        python@$TRAVIS_PYTHON_VERSION
        $CXXSPEC &&
      spack load python@$TRAVIS_PYTHON_VERSION $CXXSPEC;
      if [ "$USE_INTERNAL_PYBIND11" == "OFF" ]; then
        travis_wait spack install
          py-pybind11$PYBIND11_VERSION ^python@$TRAVIS_PYTHON_VERSION
          $CXXSPEC &&
        spack load py-pybind11$PYBIND11_VERSION ^python@$TRAVIS_PYTHON_VERSION $CXXSPEC;
      fi;
      travis_wait spack install
        py-numpy ~blas ~lapack ^python@$TRAVIS_PYTHON_VERSION
        $CXXSPEC &&
      spack load py-numpy ~blas ~lapack ^python@$TRAVIS_PYTHON_VERSION $CXXSPEC;
      if [ $USE_MPI == "ON" ]; then
        travis_wait spack install
          py-mpi4py ^python@$TRAVIS_PYTHON_VERSION
          $CXXSPEC &&
        spack load py-mpi4py ^python@$TRAVIS_PYTHON_VERSION $CXXSPEC;
      fi;
    fi
  - if [ $USE_HDF5 == "ON" ]; then
      travis_wait spack install
        hdf5$HDF5_VERSION
        $SPACK_VAR_MPI
        $CXXSPEC &&
      spack load hdf5$HDF5_VERSION $SPACK_VAR_MPI $CXXSPEC;
    fi
  - if [ $USE_ADIOS1 == "ON" ]; then
      travis_wait 30 spack install
        adios$ADIOS1_VERSION
        $SPACK_VAR_MPI ^python@$TRAVIS_PYTHON_VERSION
        $CXXSPEC &&
      spack load adios$ADIOS1_VERSION $SPACK_VAR_MPI ^python@$TRAVIS_PYTHON_VERSION $CXXSPEC;
    fi
  - if [ $USE_ADIOS2 == "ON" ]; then
      echo "adios2$ADIOS2_VERSION $SPACK_VAR_MPI $CXXSPEC";
      spack spec adios2$ADIOS2_VERSION $SPACK_VAR_MPI $CXXSPEC;
      travis_wait 30 spack install
        adios2$ADIOS2_VERSION
        $SPACK_VAR_MPI
        $CXXSPEC &&
      spack load adios2$ADIOS2_VERSION $SPACK_VAR_MPI $CXXSPEC;
    fi
  - spack clean -a

before_cache:
  # https://stackoverflow.com/questions/39930171/cache-brew-builds-with-travis-ci
  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then brew cleanup; fi