fix

pkg/apiserver/registry/datapackaging/package_storage_client.go

@@ -7,7 +7,6 @@ import (
 	"context"
 	"encoding/base32"
 	"fmt"
-	"regexp"
 	"strings"
 
 	internalpkgingv1alpha1 "github.com/vmware-tanzu/carvel-kapp-controller/pkg/apis/internalpackaging/v1alpha1"
@@ -153,23 +152,22 @@ func (t PackageTranslator) ToExternalWatcher(intObjWatcher watch.Interface, fiel
 }
 
 func (t PackageTranslator) ToExternalError(err error) error {
-	if errors.IsNotFound(err) {
-		errStr := err.Error()
-		regEx := `^internalpackages\.internal\.packaging\.carvel\.dev "(?P<internalPackageName>[a-z0-9]*)" not found$`
-		re := regexp.MustCompile(regEx)
-		match := re.FindStringSubmatch(errStr)
-		internalPackageName := ""
-		for i, name := range re.SubexpNames() {
-			if i != 0 && name == "internalPackageName" {
-				internalPackageName = match[i]
-			}
-		}
+	statusErr := err.(*errors.StatusError)
 
-		packageName, err := t.ToExternalName(internalPackageName)
+	if statusErr.ErrStatus.Details.Kind == "internalpackages" && statusErr.ErrStatus.Details.Group == internalpkgingv1alpha1.SchemeGroupVersion.Group {
+		packageName, err := t.ToExternalName(statusErr.ErrStatus.Details.Name)
 		if err != nil {
 			return err
 		}
-		return errors.NewNotFound(datapkgingv1alpha1.Resource("package"), packageName)
+
+		switch statusErr.ErrStatus.Reason {
+		case metav1.StatusReasonNotFound:
+			return errors.NewNotFound(datapkgingv1alpha1.Resource("package"), packageName)
+		case metav1.StatusReasonAlreadyExists:
+			return errors.NewAlreadyExists(datapkgingv1alpha1.Resource("package"), packageName)
+		default:
+			return err
+		}
 	}
 
 	return err