##### this stage will download latest deb package

FROM alpine:latest as prep

ARG HUGO_ARCH=amd64

RUN \
    apk -U add lastversion && \
    URL=$(lastversion --filter "hugo_extended_.*\-${HUGO_ARCH}\.tar\.gz$" --pre gohugoio/hugo  --format assets) && \
    echo "Downloading: ${URL}" && \
    wget "${URL}" -O - | tar xzv -C /tmp


##### final image

FROM alpine:latest

COPY --from=prep /tmp/hugo /usr/local/bin/hugo

RUN \
    apk --no-cache upgrade && \
    apk --no-cache add gcompat libstdc++

ENTRYPOINT [ "/usr/local/bin/hugo" ]