env:
    global:
        - "PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'"
        # pip dependencies to _test_ your project
        - TEST_DEPENDS="numpy==1.11.1"
        # params to bdist_wheel. used to set osx build target.
        - CONFIG_PATH="travis_config.sh"
        - USE_CCACHE=1
        - UNICODE_WIDTH=32
        - SDIST=0

# Save some time, we and setup check them out on demand instead
# https://docs.travis-ci.com/user/customizing-the-build/#Git-Clone-Depth
git:
    submodules: false

# https://docs.travis-ci.com/user/caching
cache:
  directories:
    # `cache: ccache: true` has no effect if `language:` is not `c` or `cpp`
    - $HOME/.ccache

# Add more cache stages (s2 etc) and corresponding OSX jobs like s1
# if brew builds start to take longer than one Travis time limit
stages:
  - s1
  - final

jobs:
  fast_finish: true
  # Travis exclude is buggy, this seems to be the only way to disable default build
  exclude:
    - language: ruby
  include:
    # source distributions
    - os: linux
      stage: s1
      script: skip
      env:
        - SDIST=1
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      python: "3.8"
      language: python
      dist: xenial
    - os: linux
      stage: s1
      script: skip
      env:
        - SDIST=1
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      python: "3.8"
      language: python
      dist: xenial
    - os: linux
      stage: s1
      script: skip
      env:
        - SDIST=1
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      python: "3.8"
      language: python
      dist: xenial
    - os: linux
      stage: s1
      script: skip
      env:
        - SDIST=1
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      python: "3.8"
      language: python
      dist: xenial

    # default builds for MacOS
      #further jobs in the list will use the same stage until the next assignment
    - stage: final
    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.13.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.14.5

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.17.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.9
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.3


    # headless builds for MacOS
    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.13.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.14.5

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.17.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.9
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.3


    # Contrib builds for MacOS
    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.13.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.14.5

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.17.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.9
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.3


    # headless contrib builds for MacOS
    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.13.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.14.5

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.17.3

    - os: osx
      language: generic
      osx_image: xcode9.4
      env:
        - MB_PYTHON_VERSION=3.9
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.3


    # default builds for Linux
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.13.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.13.3
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.14.5
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.14.5
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.17.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.17.3
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.3
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache

    # headless builds for Linux
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.13.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.13.3
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.14.5
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.14.5
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.17.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.17.3
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.3
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache

    # contrib builds for Linux
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - TEST_DEPENDS=numpy==1.13.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.13.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - TEST_DEPENDS=numpy==1.17.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.17.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - TEST_DEPENDS=numpy==1.19.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.19.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache


    # headless contrib builds for Linux
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - TEST_DEPENDS=numpy==1.13.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.13.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - TEST_DEPENDS=numpy==1.17.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.17.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.8
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - TEST_DEPENDS=numpy==1.19.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.19.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      arch: arm64
      language: generic
      dist: xenial
      services: docker
      env:
        - MB_PYTHON_VERSION=3.9
        - PLAT=aarch64
        - DOCKER_TEST_IMAGE=multibuild/xenial_arm64v8
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.19.0
        - USE_CCACHE=0
      cache:
        directories: $HOME/.ccache

# The first line is printed in the folding header in Travis output
before_install: |
    set -e

    if [[ $SDIST == 0 ]]; then
      # Check out and prepare the source
      # Multibuild doesn't have releases, so --depth would break eventually (see
      # https://superuser.com/questions/1240216/server-does-not-allow-request-for-unadvertised)
      git submodule update --init multibuild

      source multibuild/common_utils.sh

      # https://github.com/matthew-brett/multibuild/issues/116
      if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export ARCH_FLAGS=" "; fi

      source multibuild/travis_steps.sh
      # This sets -x

      source travis_multibuild_customize.sh
      echo $ENABLE_CONTRIB > contrib.enabled
      echo $ENABLE_HEADLESS > headless.enabled

      echo "end"
      # Not interested in travis internal scripts' output
    fi

    set +x

install: |
    # Build and package
    set -x

    if [[ $SDIST == 1 ]]; then
      python -m pip install --upgrade pip
      python -m pip install scikit-build
      python setup.py sdist
    else
      build_wheel $REPO_DIR $PLAT
    fi

    set +x

script: |
    # Install and run tests
    set -x
    if [[ $SDIST == 1 ]]; then
      echo "skipping tests because of sdist"
    else
      install_run $PLAT && rc=$? || rc=$?
    fi

    set +x

    #otherwise, Travis logic terminates prematurely
    #https://travis-ci.community/t/shell-session-update-command-not-found-in-build-log-causes-build-to-fail-if-trap-err-is-set/817
    trap ERR
    test "$rc" -eq 0

after_success: |
    # Upload wheels to pypi if tag is set

    set -x

    if [ -n "$TRAVIS_TAG" ]; then

      if [[ $ENABLE_CONTRIB == 0 ]]; then
        if [[ $ENABLE_HEADLESS == 0 ]]; then
          echo "This is default build. Deployment will be done to to PyPI entry opencv-python."
        else
          echo "This is headless contrib build. Deployment will be done to to PyPI entry opencv-python-headless."
        fi
      else
        if [[ $ENABLE_HEADLESS == 0 ]]; then
          echo "This is contrib build. Deployment will be done to to PyPI entry opencv-contrib-python."
        else
          echo "This is headless contrib build. Deployment will be done to to PyPI entry opencv-contrib-python-headless."
        fi
      fi

      if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
        if [[ $SDIST == 1 ]]; then
          pip install twine
          twine upload -u ${PYPI_USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/dist/opencv*
        else
          pip install --user twine
          pip install --user --upgrade six
          twine upload -u ${PYPI_USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/wheelhouse/opencv*
        fi

      fi

      if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
        # macpython 3.5 doesn't support recent TLS protocols which causes twine
        # upload to fail, so we use the system Python to run twine
        /usr/bin/python -m ensurepip --user
        /usr/bin/python -m pip install --user -U pip
        /usr/bin/python -m pip install --user -U -I twine

        if [[ $SDIST == 1 ]]; then
          /usr/bin/python -m twine upload -u ${PYPI_USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/dist/opencv*
        else
          /usr/bin/python -m twine upload -u ${PYPI_USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/wheelhouse/opencv*
        fi

      fi

    fi

    # Save to Azure storage always

    if [[ $TRAVIS_CPU_ARCH != "arm64" ]]; then
      if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
        curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
      else
        brew install azure-cli
      fi

      az storage container create -n ${TRAVIS_COMMIT} --public-access blob

      if [[ $SDIST == 1 ]]; then
        az storage blob upload-batch -d ${TRAVIS_COMMIT} -s ${TRAVIS_BUILD_DIR}/dist --pattern *.gz
      else
        az storage blob upload-batch -d ${TRAVIS_COMMIT} -s ${TRAVIS_BUILD_DIR}/wheelhouse --pattern opencv*.whl
      fi
    fi

    set +x