FROM amd64/golang:1.24.2@sha256:81b44f328549e8356fda6707346ff8a6589fe250eeb4ea5f21669c7d24b36dae as build
WORKDIR /build
ENV CGO_ENABLED=0
ADD . /build
RUN if [ $(go mod tidy -v 2>&1 | grep -c unused) != 0 ]; then echo "Unused modules, please run 'go mod tidy'"; exit 1; fi
RUN go fmt ./...
RUN go vet ./...
RUN CGO_ENABLED=1 go test -mod=readonly -race -coverprofile=coverage.txt.tmp -covermode=atomic -coverpkg=$(go list ./... | tr '\n' , | sed 's/,$//') ./...
RUN ["/bin/bash", "-c", "cat coverage.txt.tmp | grep -v -f <(find . -type f | xargs grep -l 'Code generated') > coverage.txt"]
RUN go tool cover -html=coverage.txt -o coverage.html
RUN go tool cover -func=coverage.txt
RUN rm coverage.txt.tmp
RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -mod=readonly -o release/cron-checker -ldflags '-w -s'

FROM scratch as export
COPY --from=build /build/coverage.txt /

FROM scratch
COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=build /build/release/cron-checker /
CMD ["/cron-checker"]