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OpenCV-Erlang/Elixir binding.

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evision scripts download_opencv.sh
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scripts/download_opencv.sh 

#!/bin/sh



OPENCV_VER="$1"

OPENCV_CACHE_DIR="$2"

OPENCV_ROOT_DIR="$3"



OPENCV_ZIP_URL="https://github.com/opencv/opencv/archive/${OPENCV_VER}.zip"

OPENCV_SOURCE_ZIP="${OPENCV_CACHE_DIR}/opencv-${OPENCV_VER}.zip"



function download_opencv() {

    if [ ! -f "${OPENCV_SOURCE_ZIP}" ]; then

        echo "Downloading OpenCV ${OPENCV_VER}..."

        mkdir -p "${OPENCV_CACHE_DIR}"

        if [ -e "$(which wget)" ]; then

            wget "${OPENCV_ZIP_URL}" -O "${OPENCV_SOURCE_ZIP}"

        elif [ -e "$(which curl)" ]; then

            curl -fSsL "${OPENCV_ZIP_URL}" -o "${OPENCV_SOURCE_ZIP}"

        else

            echo "No wget or curl found, please install one of them"

            exit 1

        fi

    fi

}



function unzip_opencv() {

    if [ ! -d "${OPENCV_ROOT_DIR}/opencv-${OPENCV_VER}" ]; then

        echo "Unzipping OpenCV ${OPENCV_VER}..."

        mkdir -p "${OPENCV_ROOT_DIR}"

        if [ -e "$(which unzip)" ]; then

            unzip "${OPENCV_SOURCE_ZIP}" -d "${OPENCV_ROOT_DIR}" ;

        elif [ -e "$(which 7z)" ]; then

            7z x "${OPENCV_SOURCE_ZIP}" -o"${OPENCV_ROOT_DIR}" ;

        else

            echo "No unzip or 7z found, please install one of them"

            exit 1

        fi

    fi

}



download_opencv && unzip_opencv