## lint image
## current as of 2022-01-25
FROM golangci/golangci-lint@sha256:d16ef91da7e10f3df45c36876543326abbc4c16aaab6548549560b9f52e9e831 AS linter

RUN mkdir -p /build
WORKDIR /build
COPY ./ ./
RUN golangci-lint run

## build image:
# this is golang:1.17.6-buster as of 2022-01-27
FROM golang@sha256:52a48e0239f4d645b20ac268a60361703afe7feb2df5697fa89f72052cb87a3e AS builder
#FROM golang:1.16-buster AS builder

ENV DEBIAN_FRONTEND noninteractive
RUN apt update && apt install -y make bzip2 protobuf-compiler

RUN mkdir -p /build
WORKDIR /build

COPY go.mod .
COPY go.sum .

COPY ./ ./
# don't lint again during build because there's no golangci-lint in this
# image and we already did it in a previous stage
#RUN make lint
RUN make mfer
RUN go mod vendor
RUN tar -c . | bzip2 > /src.tbz2


FROM scratch
COPY --from=builder /src.tbz2 /src.tbz2
COPY --from=builder /build/mfer /mfer
ENTRYPOINT ["/mfer"]