FROM rustembedded/cross:arm-unknown-linux-musleabihf AS builder

ARG UID=991
ARG GID=991

ARG TOOLCHAIN=stable
ARG TARGET=arm-unknown-linux-musleabihf
ARG TOOL=arm-linux-musleabihf

ARG REPOSITORY=https://git.asonix.dog/asonix/pict-rs
ARG TAG=master
ARG BINARY=pict-rs

RUN \
 apt-get update && \
 apt-get upgrade -y

RUN \
 addgroup --gid "${GID}" build && \
 adduser \
    --disabled-password \
    --gecos "" \
    --ingroup build \
    --uid "${UID}" \
    --home /opt/build \
    build

ADD https://sh.rustup.rs /opt/build/rustup.sh

RUN \
 chown -R build:build /opt/build

USER build
WORKDIR /opt/build

ENV PATH=/opt/build/.cargo/bin:/usr/local/musl/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

RUN \
 chmod +x rustup.sh && \
 ./rustup.sh --default-toolchain $TOOLCHAIN --profile minimal -y && \
 rustup target add $TARGET

RUN \
 git clone -b $TAG $REPOSITORY repo

WORKDIR /opt/build/repo

RUN \
 cargo build --release --target $TARGET && \
 $TOOL-strip target/$TARGET/release/$BINARY

FROM arm32v7/alpine:3.11

ARG UID=991
ARG GID=991
ARG BINARY=pict-rs

COPY --from=builder /opt/build/repo/target/arm-unknown-linux-musleabihf/release/$BINARY /usr/bin/$BINARY

RUN \
 apk add tini && \
 addgroup -g $GID pictrs && \
 adduser -D -G pictrs -g "" -h /opt/pictrs pictrs

WORKDIR /opt/pictrs
USER pictrs
ENTRYPOINT ["/sbin/tini", "--"]
CMD ["/usr/bin/pict-rs"]