FROM alpine:latest as tarball

COPY install-build-pkgs /tmp/
RUN /tmp/install-build-pkgs

ARG BUILD_TIMESTAMP=0
ARG BRANCH=master
ARG GIT_REPO

RUN git clone --single-branch "${GIT_REPO}" /tmp/mergerfs --branch="${BRANCH}"
RUN cd /tmp/mergerfs && make version tarball

RUN mkdir /build
RUN cp -v /tmp/mergerfs/*.tar.gz /build/

FROM scratch
COPY --from=tarball /build/ /