HUGO_VERSION=0.66.0
case $(uname -m) in
i[23456]86)
    HUGO_ARCH=32bit
    ;;
x86_64)
    HUGO_ARCH=64bit
    ;;
aarch64)
    HUGO_ARCH=ARM64
    ;;
armv7*)
    HUGO_ARCH=ARM
    ;;
esac

HUGO_TAR=hugo_${HUGO_VERSION}_Linux-${HUGO_ARCH}.tar.gz
HUGO_BASE_URL=https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}
HUGO_TAR_URL=${HUGO_BASE_URL}/${HUGO_TAR}
HUGO_CHECKSUM_URL=${HUGO_BASE_URL}/hugo_${HUGO_VERSION}_checksums.txt

if [ ! -f hugo-${HUGO_VERSION} ]; then
    rm -f ${HUGO_TAR} hugo_${HUGO_VERSION}_checksums.txt
    curl -fJL -O "${HUGO_CHECKSUM_URL}" -O "${HUGO_TAR_URL}"
    grep ${HUGO_TAR} hugo_${HUGO_VERSION}_checksums.txt | sha256sum -c
    tar -xzOf ${HUGO_TAR} hugo > hugo-${HUGO_VERSION}
    chmod +x hugo-${HUGO_VERSION}
fi

ln -sf hugo-${HUGO_VERSION} hugo