FROM docker.io/immawanderer/fedora-hugo:linux-amd64 AS hugobuild

WORKDIR /homepage

COPY . .

RUN git submodule init \
	&& git submodule update --recursive \
	&& hugo version \
	&& hugo --minify --gc=true --cleanDestinationDir

FROM docker.io/library/golang:1.18.5-alpine3.16 AS gobuild
COPY --from=hugobuild /homepage/ /homepage/

WORKDIR /homepage

ARG VCS_REF=development

RUN CGO_ENABLED=0 GOFLAGS='-trimpath -mod=readonly -modcacherw' \
	go build -o homepage-app -v -ldflags "-s -w -X main.version=$VCS_REF" .

FROM scratch
COPY --from=gobuild /homepage/homepage-app /homepage

ENTRYPOINT ["/homepage"]