validate openapi exclusivity

cmd/print.go

@@ -19,6 +19,7 @@ package cmd
 import (
 	"fmt"
 	"os"
+	"slices"
 	"strings"
 
 	"github.com/kubernetes-sigs/ingress2gateway/pkg/i2gw"
@@ -237,6 +238,13 @@ func newPrintCommand() *cobra.Command {
 		Use:   "print",
 		Short: "Prints Gateway API objects generated from ingress and provider-specific resources.",
 		RunE:  pr.PrintGatewayAPIObjects,
+		PreRunE: func(cmd *cobra.Command, args []string) error {
+			openAPIExist := slices.Contains(pr.providers, "openapi3")
+			if openAPIExist && len(pr.providers) != 1 {
+				return fmt.Errorf("openapi3 must be the only provider when specified")
+			}
+			return nil
+		},
 	}
 
 	cmd.Flags().StringVarP(&pr.outputFormat, "output", "o", "yaml",

pkg/i2gw/providers/kong/resource_reader.go

@@ -31,8 +31,6 @@ import (
 	"github.com/kubernetes-sigs/ingress2gateway/pkg/i2gw/providers/common"
 )
 
-var count int
-
 // converter implements the i2gw.CustomResourceReader interface.
 type resourceReader struct {
 	conf *i2gw.ProviderConf
@@ -90,8 +88,6 @@ func (r *resourceReader) readResourcesFromFile(filename string) (*storage, error
 // -----------------------------------------------------------------------------
 
 func (r *resourceReader) readTCPIngressesFromCluster(ctx context.Context) ([]kongv1beta1.TCPIngress, error) {
-	count++
-	fmt.Println(count)
 	tcpIngressList := &unstructured.UnstructuredList{}
 	tcpIngressList.SetGroupVersionKind(tcpIngressGVK)