feat: basic implementation of branch statistics

routes/compat/shields/v1/badge.go

@@ -105,6 +105,7 @@ func (h *BadgeHandler) Get(w http.ResponseWriter, r *http.Request) {
 	case "label":
 		permitEntity = user.ShareLabels
 		filters = models.NewFiltersWith(models.SummaryLabel, filterKey)
+	// branches are intentionally omitted here, as only relevant in combination with a project filter
 	default:
 		permitEntity = true
 		filters = &models.Filters{}

routes/routes.go

@@ -77,6 +77,9 @@ func typeName(t uint8) string {
 	if t == models.SummaryLabel {
 		return "label"
 	}
+	if t == models.SummaryBranch {
+		return "branch"
+	}
 	return "unknown"
 }
 

routes/utils/summary_utils.go

@@ -51,5 +51,8 @@ func ParseFilters(r *http.Request) *models.Filters {
 	if q := r.URL.Query().Get("label"); q != "" {
 		filters.With(models.SummaryLabel, q)
 	}
+	if q := r.URL.Query().Get("branch"); q != "" {
+		filters.With(models.SummaryBranch, q)
+	}
 	return filters
 }