1 files changed, 48 insertions, 0 deletions
diff --git a/workhorse/internal/git/diff.go b/workhorse/internal/git/diff.go
new file mode 100644
index 00000000000..b1a1c17a650
--- /dev/null
+++ b/workhorse/internal/git/diff.go
@@ -0,0 +1,48 @@
+package git
+
+import (
+	"fmt"
+	"net/http"
+
+	"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
+
+	"gitlab.com/gitlab-org/gitlab-workhorse/internal/gitaly"
+	"gitlab.com/gitlab-org/gitlab-workhorse/internal/helper"
+	"gitlab.com/gitlab-org/gitlab-workhorse/internal/senddata"
+)
+
+type diff struct{ senddata.Prefix }
+type diffParams struct {
+	GitalyServer   gitaly.Server
+	RawDiffRequest string
+}
+
+var SendDiff = &diff{"git-diff:"}
+
+func (d *diff) Inject(w http.ResponseWriter, r *http.Request, sendData string) {
+	var params diffParams
+	if err := d.Unpack(&params, sendData); err != nil {
+		helper.Fail500(w, r, fmt.Errorf("SendDiff: unpack sendData: %v", err))
+		return
+	}
+
+	request := &gitalypb.RawDiffRequest{}
+	if err := gitaly.UnmarshalJSON(params.RawDiffRequest, request); err != nil {
+		helper.Fail500(w, r, fmt.Errorf("diff.RawDiff: %v", err))
+		return
+	}
+
+	ctx, diffClient, err := gitaly.NewDiffClient(r.Context(), params.GitalyServer)
+	if err != nil {
+		helper.Fail500(w, r, fmt.Errorf("diff.RawDiff: %v", err))
+		return
+	}
+
+	if err := diffClient.SendRawDiff(ctx, w, request); err != nil {
+		helper.LogError(
+			r,
+			&copyError{fmt.Errorf("diff.RawDiff: request=%v, err=%v", request, err)},
+		)
+		return
+	}
+}