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.
        - BDIST_PARAMS=""
        - USE_CCACHE=1
        - PLAT=x86_64
        - UNICODE_WIDTH=32


# Host Python is never used
language: generic
# Required to invoke docker ourselves as per https://docs.travis-ci.com/user/docker/
sudo: required
services: docker
# https://docs.travis-ci.com/user/reference/trusty/
dist: trusty

# 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:
    # https://stackoverflow.com/questions/39930171/cache-brew-builds-with-travis-ci
    - $HOME/Library/Caches/Homebrew
    - /usr/local/Homebrew/
    # used in OSX custom build script dealing with local bottle caching
    - $HOME/local_bottle_metadata
    # `cache: ccache: true` has no effect if `language:` is not `c` or `cpp`
    - $HOME/.ccache
    
matrix:
  fast_finish: true
  include:

    # default builds for MacOS
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
        - TEST_DEPENDS=numpy==1.14.5

    # headless builds for MacOS
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
        - TEST_DEPENDS=numpy==1.14.5

    # Contrib builds for MacOS
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
        - TEST_DEPENDS=numpy==1.14.5

    # headless contrib builds for MacOS
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
    - os: osx
      osx_image: xcode8
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
        - BDIST_PARAMS="-- -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7"
        - TEST_DEPENDS=numpy==1.14.5

    # default builds for Linux
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.11.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.11.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.14.5
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=0
        - TEST_DEPENDS=numpy==1.14.5
      cache:
        directories: $HOME/.ccache

    # headless builds for Linux
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.11.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.11.3
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.14.5
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - ENABLE_CONTRIB=0
        - ENABLE_HEADLESS=1
        - TEST_DEPENDS=numpy==1.14.5
      cache:
        directories: $HOME/.ccache

    # contrib builds for Linux
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - PLAT=i686
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - PLAT=i686
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - TEST_DEPENDS=numpy==1.11.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.11.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=0
      cache:
        directories: $HOME/.ccache


    # headless contrib builds for Linux
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=2.7
        - PLAT=i686
        - UNICODE_WIDTH=16
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.4
        - PLAT=i686
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.5
        - PLAT=i686
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - TEST_DEPENDS=numpy==1.11.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.6
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.11.3
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache
    - os: linux
      env:
        - MB_PYTHON_VERSION=3.7
        - PLAT=i686
        - TEST_DEPENDS=numpy==1.14.5
        - ENABLE_CONTRIB=1
        - ENABLE_HEADLESS=1
      cache:
        directories: $HOME/.ccache

# The first line is printed in the folding header in Travis output
before_install: |
    # Check out and prepare the source
    set -e
    # 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 multibuild_customize.sh
    echo $ENABLE_CONTRIB > contrib.enabled
    echo $ENABLE_HEADLESS > headless.enabled
    
    if [ -n "$IS_OSX" ]; then
        TAPS="$(brew --repository)/Library/Taps"
        if [ -e "$TAPS/caskroom/homebrew-cask" -a -e "$TAPS/homebrew/homebrew-cask" ]; then
            rm -rf "$TAPS/caskroom/homebrew-cask"
        fi
        find "$TAPS" -type d -name .git -exec \
                bash -xec '
                    cd $(dirname '\''{}'\'')
                    git clean -fxd
                    git status' \;
                    
        brew_cache_cleanup
    fi
    
    before_install
    # Not interested in travis internal scripts' output
    set +x

install: |
    # Build and package
    set -x
    build_wheel $REPO_DIR $PLAT
    if [ -n "$USE_CCACHE" ]; then ccache --show-stats; fi
    set +x

script: |
    # Install and run tests
    set -x
    install_run $PLAT && rc=$? || rc=$?
    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

before_cache: |
    # Cleanup dirs to be cached
    set -x
    if [ -n "$IS_OSX" ]; then

        # When Taps is cached, this dir causes "Error: file exists" on `brew update`
        if [ -e "$(brew --repository)/Library/Taps/homebrew/homebrew-cask/homebrew-cask" ]; then
            rm -rf "$(brew --repository)/Library/Taps/homebrew/homebrew-cask/homebrew-cask"
        fi

        brew_cache_cleanup
        
    fi
    set +x
    
after_success: |
    # Upload wheels to pypi if requested
    if [ -n "$TRAVIS_TAG" ]; then
        set -x
        pip install twine

        if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
          pip install --upgrade pyOpenSSL
        fi

        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

        twine upload -u ${USER} -p ${PASS} --skip-existing ${TRAVIS_BUILD_DIR}/wheelhouse/opencv*
        set +x
    else
        echo "Tag not set, deployment skipped."
    fi