FROM golang:1.22.7-alpine3.20 AS builder

RUN apk add --no-cache make bash

COPY ./go.mod /app/go.mod
COPY ./go.sum /app/go.sum

WORKDIR /app

RUN echo "go mod cache: $(go env GOMODCACHE)"
RUN echo "go build cache: $(go env GOCACHE)"

RUN --mount=type=cache,target=/go/pkg/mod --mount=type=cache,target=/root/.cache/go-build go mod download

COPY . /app

# We avoid copying the full .git dir into the build for just some metadata.
# Instead, specify:
# --build-arg GIT_COMMIT=$(git rev-parse HEAD)
# --build-arg GIT_DATE=$(git show -s --format='%ct')
ARG GIT_COMMIT
ARG GIT_DATE

ARG TARGETOS TARGETARCH

FROM --platform=$BUILDPLATFORM us-docker.pkg.dev/oplabs-tools-artifacts/images/cannon:v1.1.0-alpha.4 AS cannon-v2

FROM --platform=$BUILDPLATFORM builder AS cannon-verify
COPY --from=cannon-v2 /usr/local/bin/cannon /usr/local/bin/cannon-v2
# verify the latest singlethreaded VM behavior against cannon-v2
RUN cd cannon && make diff-singlethreaded-2-cannon -e OTHER_CANNON=/usr/local/bin/cannon-v2
RUN --mount=type=cache,target=/root/.cache/go-build cd cannon && \
  make diff-singlethreaded-2-cannon -e OTHER_CANNON=/usr/local/bin/cannon-v2 \
  GOOS=$TARGETOS GOARCH=$TARGETARCH GITCOMMIT=$GIT_COMMIT GITDATE=$GIT_DATE
