FROM thegeeklab/alpine:latest

LABEL maintainer="Robert Kaussow <mail@thegeeklab.de>"
LABEL org.opencontainers.image.authors="Robert Kaussow <mail@thegeeklab.de>"
LABEL org.opencontainers.image.title="Hugo static site generator"
LABEL org.opencontainers.image.url="https://gitea.rknet.org/docker/hugo"
LABEL org.opencontainers.image.source="https://gitea.rknet.org/docker/hugo"
LABEL org.opencontainers.image.documentation="https://gitea.rknet.org/docker/hugo"

ARG BUILD_VERSION

# renovate: datasource=github-releases depName=gohugoio/hugo
ENV HUGO_VERSION="${BUILD_VERSION:-v0.83.1}"

COPY overlay/ /

RUN apk add --update --no-cache --virtual .build-deps tar curl && \
    apk add --update --no-cache libc6-compat libstdc++ busybox-suid bash bash-completion git tzdata make && \
    echo "Installing hugo version '${HUGO_VERSION##v}' ..." && \
    curl -SsL "https://github.com/gohugoio/hugo/releases/download/${HUGO_VERSION}/hugo_extended_${HUGO_VERSION##v}_Linux-64bit.tar.gz" | \
      tar xz -C /usr/local/bin hugo && \
    chmod 755 /usr/local/bin/hugo && \
    ln -s /usr/local/bin/hugo /usr/local/bin/hugo-official && \
    apk del .build-deps && \
    rm -rf /var/cache/apk/* && \
    rm -rf /tmp/* && \
    rm -rf /root/.cache/

USER root
CMD ["help"]
ENTRYPOINT ["/usr/local/bin/hugo"]