added ExactlyOneOf to markers package and included it in init function

Author: priyansh3006

pkg/analysis/arrayofstruct/analyzer.go

@@ -26,6 +26,7 @@ import (
 	"sigs.k8s.io/kube-api-linter/pkg/analysis/helpers/inspector"
 	markershelper "sigs.k8s.io/kube-api-linter/pkg/analysis/helpers/markers"
 	"sigs.k8s.io/kube-api-linter/pkg/analysis/utils"
+	"sigs.k8s.io/kube-api-linter/pkg/markers"
 )
 
 const name = "arrayofstruct"
@@ -39,6 +40,10 @@ var Analyzer = &analysis.Analyzer{
 	Requires: []*analysis.Analyzer{inspector.Analyzer},
 }
 
+func init() {
+	markershelper.DefaultRegistry().Register(markers.KubebuilderValidationExactlyOneOf)
+}
+
 func run(pass *analysis.Pass) (any, error) {
 	inspect, ok := pass.ResultOf[inspector.Analyzer].(inspector.Inspector)
 	if !ok {
@@ -227,5 +232,5 @@ func hasExactlyOneOfMarker(structType *ast.StructType, markersAccess markershelp
 	// Use StructMarkers to get the set of markers on the struct
 	markerSet := markersAccess.StructMarkers(structType)
 
-	return markerSet.Has("kubebuilder:validation:ExactlyOneOf")
+	return markerSet.Has(markers.KubebuilderValidationExactlyOneOf)
 }

pkg/markers/markers.go

@@ -93,6 +93,9 @@ const (
 	// KubebuilderRequiredMarker is the marker that indicates that a field is required in kubebuilder.
 	KubebuilderRequiredMarker = "kubebuilder:validation:Required"
 
+	// KubebuilderValidationExactlyOneOf is the marker that indicates that a field has an exactly one of in kubebuilder.
+	KubebuilderValidationExactlyOneOf = "kubebuilder:validation:ExactlyOneOf"
+
 	// KubebuilderItemsMaxLengthMarker is the marker that indicates that a field has a maximum length in kubebuilder.
 	KubebuilderItemsMaxLengthMarker = "kubebuilder:validation:items:MaxLength"