Added source and user marks to opportunities type. Any ignored errors are deferred to //nolint with a comment instead of being silently dropped

internal/mock/findATender/catalog.go

@@ -185,7 +185,7 @@ func clone[T any](v T) T {
 	var out T
 	b, err := json.Marshal(v)
 	if err == nil {
-		_ = json.Unmarshal(b, &out)
+		json.Unmarshal(b, &out) //nolint:errcheck,gosec // b was just marshalled from a T
 	}
 	return out
 }

internal/mock/findATender/generator.go

@@ -287,6 +287,6 @@ func ensurePartyID(p *ocds.Organization) {
 		return
 	}
 	h := fnv.New32a()
-	_, _ = h.Write([]byte(p.Name)) // never fails
+	h.Write([]byte(p.Name)) //nolint:gosec // never fails
 	p.ID = fmt.Sprintf("GB-FTS-%d", h.Sum32()%1000000)
 }

internal/mock/findATender/handler.go

@@ -65,7 +65,8 @@ func decodeCursor(c string) (int, error) {
 func badRequest(w http.ResponseWriter, msg string) {
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusBadRequest)
-	_ = json.NewEncoder(w).Encode(map[string]string{"error": msg}) // the client has gone
+	body := map[string]string{"error": msg}
+	json.NewEncoder(w).Encode(body) //nolint:errcheck,gosec // the client may have gone; nothing to do
 }
 
 // parseTime reads a query timestamp. Values without an offset (the documented

internal/mock/findATender/ratelimit.go

@@ -114,7 +114,7 @@ func (rl *RateLimiter) Middleware(next http.HandlerFunc) http.HandlerFunc {
 			w.Header().Set("Retry-After", strconv.Itoa(retry))
 			w.Header().Set("Content-Type", "text/plain; charset=utf-8")
 			w.WriteHeader(http.StatusTooManyRequests)
-			_, _ = fmt.Fprintf(
+			fmt.Fprintf( //nolint:errcheck // the client may have gone; nothing to do
 				w, "Rate limit of %d exceeded. Please retry after %d seconds.",
 				rl.limit, retry,
 			)