feat: show version in stats

Dockerfile

@@ -1,10 +1,36 @@
+# syntax=docker/dockerfile:1
+
 FROM --platform=$BUILDPLATFORM golang as builder
 WORKDIR /app
-COPY . .
+
+COPY go.mod .
 RUN go mod download
+
+COPY . .
+RUN <<EOF
+  set -ex
+  tag=$(git describe --tags --always --abbrev=8 --dirty)
+  if echo "$tag" | grep -q dirty; then exit 1; fi
+  file_prefix=$(go env GOMODCACHE)/cache/download/github.com/zhsj/wghttp/@v/$tag
+  mkdir -p $(dirname "$file_prefix")
+  echo "{\"Version\": \"$tag\"}" > "$file_prefix".info
+  cp go.mod "$file_prefix".mod
+  git archive --prefix=github.com/zhsj/wghttp@"$tag"/ -o "$file_prefix".zip HEAD
+EOF
+
 ARG TARGETARCH
-RUN CGO_ENABLED=0 GOARCH=$TARGETARCH go build -v -trimpath -ldflags="-w -s" .
+RUN <<EOF
+  set -ex
+  export CGO_ENABLED=0
+  export GOARCH=$TARGETARCH
+  export GOPROXY=file://$(go env GOMODCACHE)/cache/download
+  export GOSUMDB=off
+  tag=$(git describe --tags --abbrev=8 --always)
+  go install -trimpath -ldflags="-w -s" github.com/zhsj/wghttp@"$tag"
+  cross_bin=/go/bin/$(go env GOOS)_$(go env GOARCH)/wghttp
+  if [ -e "$cross_bin" ]; then mv "$cross_bin" /go/bin/wghttp; fi
+EOF
 
 FROM scratch
-COPY --from=builder /app/wghttp /
+COPY --from=builder /go/bin/wghttp /
 ENTRYPOINT ["/wghttp"]