chore: remove duplicate function (#15123)

Signed-off-by: yyzxw <1020938856@qq.com>

server/application/application.go

@@ -47,6 +47,7 @@ import (
 	"github.com/argoproj/argo-cd/v2/server/rbacpolicy"
 	"github.com/argoproj/argo-cd/v2/util/argo"
 	argoutil "github.com/argoproj/argo-cd/v2/util/argo"
+	"github.com/argoproj/argo-cd/v2/util/collections"
 	"github.com/argoproj/argo-cd/v2/util/db"
 	"github.com/argoproj/argo-cd/v2/util/env"
 	"github.com/argoproj/argo-cd/v2/util/git"
@@ -814,19 +815,6 @@ func (s *Server) validateAndUpdateApp(ctx context.Context, newApp *appv1.Applica
 	return a, nil
 }
 
-func mergeStringMaps(items ...map[string]string) map[string]string {
-	res := make(map[string]string)
-	for _, m := range items {
-		if m == nil {
-			continue
-		}
-		for k, v := range m {
-			res[k] = v
-		}
-	}
-	return res
-}
-
 var informerSyncTimeout = 2 * time.Second
 
 // waitSync is a helper to wait until the application informer cache is synced after create/update.
@@ -864,8 +852,8 @@ func (s *Server) updateApp(app *appv1.Application, newApp *appv1.Application, ct
 	for i := 0; i < 10; i++ {
 		app.Spec = newApp.Spec
 		if merge {
-			app.Labels = mergeStringMaps(app.Labels, newApp.Labels)
-			app.Annotations = mergeStringMaps(app.Annotations, newApp.Annotations)
+			app.Labels = collections.MergeStringMaps(app.Labels, newApp.Labels)
+			app.Annotations = collections.MergeStringMaps(app.Annotations, newApp.Annotations)
 		} else {
 			app.Labels = newApp.Labels
 			app.Annotations = newApp.Annotations
@@ -1700,8 +1688,8 @@ func isTheSelectedOne(currentNode *appv1.ResourceNode, q *application.Applicatio
 	}
 
 	for _, parentResource := range currentNode.ParentRefs {
-		//look up parentResource from resourceNodes
-		//then check if the parent isTheSelectedOne
+		// look up parentResource from resourceNodes
+		// then check if the parent isTheSelectedOne
 		for _, resourceNode := range resourceNodes {
 			if resourceNode.Namespace == parentResource.Namespace &&
 				resourceNode.Name == parentResource.Name &&

server/applicationset/applicationset.go

@@ -28,6 +28,7 @@ import (
 	servercache "github.com/argoproj/argo-cd/v2/server/cache"
 	"github.com/argoproj/argo-cd/v2/server/rbacpolicy"
 	"github.com/argoproj/argo-cd/v2/util/argo"
+	"github.com/argoproj/argo-cd/v2/util/collections"
 	"github.com/argoproj/argo-cd/v2/util/db"
 	"github.com/argoproj/argo-cd/v2/util/rbac"
 	"github.com/argoproj/argo-cd/v2/util/security"
@@ -214,19 +215,6 @@ func (s *Server) Create(ctx context.Context, q *applicationset.ApplicationSetCre
 	return updated, nil
 }
 
-func mergeStringMaps(items ...map[string]string) map[string]string {
-	res := make(map[string]string)
-	for _, m := range items {
-		if m == nil {
-			continue
-		}
-		for k, v := range m {
-			res[k] = v
-		}
-	}
-	return res
-}
-
 func (s *Server) updateAppSet(appset *v1alpha1.ApplicationSet, newAppset *v1alpha1.ApplicationSet, ctx context.Context, merge bool) (*v1alpha1.ApplicationSet, error) {
 
 	if appset != nil && appset.Spec.Template.Spec.Project != newAppset.Spec.Template.Spec.Project {
@@ -244,8 +232,8 @@ func (s *Server) updateAppSet(appset *v1alpha1.ApplicationSet, newAppset *v1alph
 	for i := 0; i < 10; i++ {
 		appset.Spec = newAppset.Spec
 		if merge {
-			appset.Labels = mergeStringMaps(appset.Labels, newAppset.Labels)
-			appset.Annotations = mergeStringMaps(appset.Annotations, newAppset.Annotations)
+			appset.Labels = collections.MergeStringMaps(appset.Labels, newAppset.Labels)
+			appset.Annotations = collections.MergeStringMaps(appset.Annotations, newAppset.Annotations)
 		} else {
 			appset.Labels = newAppset.Labels
 			appset.Annotations = newAppset.Annotations

util/collections/maps.go

@@ -21,3 +21,16 @@ func StringMapsEqual(first map[string]string, second map[string]string) bool {
 	}
 	return reflect.DeepEqual(first, second)
 }
+
+func MergeStringMaps(items ...map[string]string) map[string]string {
+	res := make(map[string]string)
+	for _, m := range items {
+		if m == nil {
+			continue
+		}
+		for k, v := range m {
+			res[k] = v
+		}
+	}
+	return res
+}

util/collections/maps_test.go

@@ -19,3 +19,61 @@ func TestStringMapsEqual(t *testing.T) {
 	assert.False(t, StringMapsEqual(map[string]string{"foo": "bar"}, nil))
 	assert.False(t, StringMapsEqual(map[string]string{"foo": "bar"}, map[string]string{"foo": "bar1"}))
 }
+
+func TestMergeStringMaps(t *testing.T) {
+	tests := []struct {
+		name string
+		args []map[string]string
+		want map[string]string
+	}{
+		{
+			name: "test single map",
+			args: []map[string]string{
+				{"foo": "bar"},
+				{"foo1": "bar1"},
+			},
+			want: map[string]string{
+				"foo":  "bar",
+				"foo1": "bar1",
+			},
+		},
+		{
+			name: "test contains nil map",
+			args: []map[string]string{
+				{"foo": "bar"},
+				nil,
+				{"foo1": "bar1"},
+			},
+			want: map[string]string{
+				"foo":  "bar",
+				"foo1": "bar1",
+			},
+		},
+		{
+			name: "test contains multiple maps",
+			args: []map[string]string{
+				{"foo": "bar"},
+				{
+					"foo1": "bar1",
+					"foo2": "bar2",
+				},
+				{
+					"foo":  "bar1",
+					"foo2": "bar2",
+					"foo3": "bar3",
+				},
+			},
+			want: map[string]string{
+				"foo":  "bar1",
+				"foo1": "bar1",
+				"foo2": "bar2",
+				"foo3": "bar3",
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equalf(t, tt.want, MergeStringMaps(tt.args...), "MergeStringMaps(%v)", tt.args)
+		})
+	}
+}