enable golint: gosimple,whitespace

.golangci.yml

@@ -33,14 +33,14 @@ linters:
     #- goconst
     #- gocritic
     #- gocyclo
-    #- gosimple
+    - gosimple
     #- staticcheck
     #- stylecheck
     #- unused
     #- varcheck
     #- unparam
     #- unconvert
-    #- whitespace
+    - whitespace
 
 issues:
   include:

adapter/main.go

@@ -40,7 +40,6 @@ var (
 )
 
 func (a *Adapter) makeProviderOrDie() provider.MetricsProvider {
-
 	// Get a config to talk to the apiserver
 	cfg, err := config.GetConfig()
 	if err != nil {

controllers/hpa.go

@@ -99,7 +99,6 @@ func (r *ScaledObjectReconciler) newHPAForScaledObject(logger logr.Logger, scale
 
 // updateHPAIfNeeded checks whether update of HPA is needed
 func (r *ScaledObjectReconciler) updateHPAIfNeeded(logger logr.Logger, scaledObject *kedav1alpha1.ScaledObject, foundHpa *autoscalingv2beta2.HorizontalPodAutoscaler, gvkr *kedav1alpha1.GroupVersionKindResource) error {
-
 	hpa, err := r.newHPAForScaledObject(logger, scaledObject, gvkr)
 	if err != nil {
 		logger.Error(err, "Failed to create new HPA resource", "HPA.Namespace", scaledObject.Namespace, "HPA.Name", getHPAName(scaledObject))

controllers/scaledjob_controller.go

@@ -32,7 +32,6 @@ type ScaledJobReconciler struct {
 
 // SetupWithManager initializes the ScaledJobReconciler instance and starts a new controller managed by the passed Manager instance.
 func (r *ScaledJobReconciler) SetupWithManager(mgr ctrl.Manager) error {
-
 	r.scaleHandler = scaling.NewScaleHandler(mgr.GetClient(), nil, mgr.GetScheme())
 
 	return ctrl.NewControllerManagedBy(mgr).
@@ -88,7 +87,6 @@ func (r *ScaledJobReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error) {
 
 // reconcileJobType implemets reconciler logic for K8s Jobs based ScaleObject
 func (r *ScaledJobReconciler) reconcileScaledJob(logger logr.Logger, scaledJob *kedav1alpha1.ScaledJob) (string, error) {
-
 	msg, err := r.deletePreviousVersionScaleJobs(logger, scaledJob)
 	if err != nil {
 		return msg, err
@@ -130,7 +128,6 @@ func (r *ScaledJobReconciler) deletePreviousVersionScaleJobs(logger logr.Logger,
 
 // requestScaleLoop request ScaleLoop handler for the respective ScaledJob
 func (r *ScaledJobReconciler) requestScaleLoop(logger logr.Logger, scaledJob *kedav1alpha1.ScaledJob) error {
-
 	logger.V(1).Info("Starting a new ScaleLoop")
 
 	return r.scaleHandler.HandleScalableObject(scaledJob)

controllers/scaledobject_controller.go

@@ -52,7 +52,6 @@ type ScaledObjectReconciler struct {
 
 // SetupWithManager initializes the ScaledObjectReconciler instance and starts a new controller managed by the passed Manager instance.
 func (r *ScaledObjectReconciler) SetupWithManager(mgr ctrl.Manager) error {
-
 	// create Discovery clientset
 	clientset, err := discovery.NewDiscoveryClientForConfig(mgr.GetConfig())
 	if err != nil {
@@ -156,7 +155,6 @@ func (r *ScaledObjectReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error
 
 // reconcileScaledObject implements reconciler logic for ScaleObject
 func (r *ScaledObjectReconciler) reconcileScaledObject(logger logr.Logger, scaledObject *kedav1alpha1.ScaledObject) (string, error) {
-
 	// Check scale target Name is specified
 	if scaledObject.Spec.ScaleTargetRef.Name == "" {
 		err := fmt.Errorf("ScaledObject.spec.scaleTargetRef.name is missing")

controllers/scaledobject_finalizer.go

@@ -17,7 +17,6 @@ const (
 
 // finalizeScaledObject runs finalization logic on ScaledObject if there's finalizer
 func (r *ScaledObjectReconciler) finalizeScaledObject(logger logr.Logger, scaledObject *kedav1alpha1.ScaledObject) error {
-
 	if util.Contains(scaledObject.GetFinalizers(), scaledObjectFinalizer) {
 		// Run finalization logic for scaledObjectFinalizer. If the
 		// finalization logic fails, don't remove the finalizer so
@@ -27,7 +26,7 @@ func (r *ScaledObjectReconciler) finalizeScaledObject(logger logr.Logger, scaled
 		}
 
 		// if enabled, scale scaleTarget back to the original replica count (to the state it was before scaling with KEDA)
-		if scaledObject.Spec.Advanced != nil && scaledObject.Spec.Advanced.RestoreToOriginalReplicaCount == true {
+		if scaledObject.Spec.Advanced != nil && scaledObject.Spec.Advanced.RestoreToOriginalReplicaCount {
 			scale, err := (*r.scaleClient).Scales(scaledObject.Namespace).Get(context.TODO(), scaledObject.Status.ScaleTargetGVKR.GroupResource(), scaledObject.Spec.ScaleTargetRef.Name, metav1.GetOptions{})
 			if err != nil {
 				if errors.IsNotFound(err) {
@@ -60,7 +59,6 @@ func (r *ScaledObjectReconciler) finalizeScaledObject(logger logr.Logger, scaled
 
 // ensureFinalizer check there is finalizer present on the ScaledObject, if not it adds one
 func (r *ScaledObjectReconciler) ensureFinalizer(logger logr.Logger, scaledObject *kedav1alpha1.ScaledObject) error {
-
 	if !util.Contains(scaledObject.GetFinalizers(), scaledObjectFinalizer) {
 		logger.Info("Adding Finalizer for the ScaledObject")
 		scaledObject.SetFinalizers(append(scaledObject.GetFinalizers(), scaledObjectFinalizer))

pkg/provider/provider.go

@@ -117,12 +117,10 @@ func (p *KedaProvider) GetExternalMetric(namespace string, metricSelector labels
 	return &external_metrics.ExternalMetricValueList{
 		Items: matchingMetrics,
 	}, nil
-
 }
 
 // ListAllExternalMetrics returns the supported external metrics for this provider
 func (p *KedaProvider) ListAllExternalMetrics() []provider.ExternalMetricInfo {
-
 	externalMetricsInfo := []provider.ExternalMetricInfo{}
 
 	//get all ScaledObjects in namespace(s) watched by the operator

pkg/scalers/artemis_scaler.go

@@ -66,7 +66,6 @@ func NewArtemisQueueScaler(resolvedSecrets, metadata, authParams map[string]stri
 }
 
 func parseArtemisMetadata(resolvedEnv, metadata, authParams map[string]string) (*artemisMetadata, error) {
-
 	meta := artemisMetadata{}
 
 	meta.queueLength = defaultArtemisQueueLength
@@ -152,7 +151,6 @@ func (s *artemisScaler) IsActive(ctx context.Context) (bool, error) {
 }
 
 func (s *artemisScaler) getMonitoringEndpoint() string {
-
 	replacer := strings.NewReplacer("<<managementEndpoint>>", s.metadata.managementEndpoint,
 		"<<queueName>>", s.metadata.queueName,
 		"<<brokerName>>", s.metadata.brokerName,

pkg/scalers/azure/azure_aad_podidentity.go

@@ -15,7 +15,6 @@ const (
 
 // GetAzureADPodIdentityToken returns the AADToken for resource
 func GetAzureADPodIdentityToken(audience string) (AADToken, error) {
-
 	var token AADToken
 
 	resp, err := http.Get(fmt.Sprintf(msiURL, url.QueryEscape(audience)))

pkg/scalers/azure/azure_eventhub.go

@@ -58,7 +58,6 @@ func GetEventHubClient(info EventHubInfo) (*eventhub.Hub, error) {
 
 // GetCheckpointFromBlobStorage accesses Blob storage and gets checkpoint information of a partition
 func GetCheckpointFromBlobStorage(ctx context.Context, info EventHubInfo, partitionID string) (Checkpoint, error) {
-
 	blobCreds, storageEndpoint, err := ParseAzureStorageBlobConnection("none", info.StorageConnection, "")
 	if err != nil {
 		return Checkpoint{}, err

pkg/scalers/azure/azure_queue.go

@@ -8,7 +8,6 @@ import (
 
 // GetAzureQueueLength returns the length of a queue in int
 func GetAzureQueueLength(ctx context.Context, podIdentity string, connectionString, queueName string, accountName string) (int32, error) {
-
 	credential, endpoint, err := ParseAzureStorageQueueConnection(podIdentity, connectionString, accountName)
 	if err != nil {
 		return -1, err

pkg/scalers/azure/azure_storage_test.go

@@ -58,6 +58,5 @@ func TestParseStorageConnectionString(t *testing.T) {
 					"but got", endpoint)
 			}
 		}
-
 	}
 }

pkg/scalers/azure_blob_scaler_test.go

@@ -54,7 +54,6 @@ func TestAzBlobParseMetadata(t *testing.T) {
 		}
 		if testData.podIdentity != "" && testData.podIdentity != podIdentity && err == nil {
 			t.Error("Expected success but got error: podIdentity value is not returned as expected")
-
 		}
 	}
 }

pkg/scalers/azure_eventhub_scaler.go

@@ -110,7 +110,6 @@ func parseAzureEventHubMetadata(metadata, resolvedEnv, authParams map[string]str
 
 //GetUnprocessedEventCountInPartition gets number of unprocessed events in a given partition
 func (scaler *azureEventHubScaler) GetUnprocessedEventCountInPartition(ctx context.Context, partitionInfo *eventhub.HubPartitionRuntimeInformation) (newEventCount int64, checkpoint azure.Checkpoint, err error) {
-
 	//if partitionInfo.LastEnqueuedOffset = -1, that means event hub partition is empty
 	if partitionInfo != nil && partitionInfo.LastEnqueuedOffset == "-1" {
 		return 0, azure.Checkpoint{}, nil
@@ -161,7 +160,6 @@ func (scaler *azureEventHubScaler) GetUnprocessedEventCountInPartition(ctx conte
 
 // GetUnprocessedEventCountWithoutCheckpoint returns the number of messages on the without a checkoutpoint info
 func GetUnprocessedEventCountWithoutCheckpoint(partitionInfo *eventhub.HubPartitionRuntimeInformation) int64 {
-
 	// if both values are 0 then there is exactly one message inside the hub. First message after init
 	if (partitionInfo.BeginningSequenceNumber == 0 && partitionInfo.LastSequenceNumber == 0) || (partitionInfo.BeginningSequenceNumber != partitionInfo.LastSequenceNumber) {
 		return (partitionInfo.LastSequenceNumber - partitionInfo.BeginningSequenceNumber) + 1

pkg/scalers/azure_eventhub_scaler_test.go

@@ -239,7 +239,6 @@ func TestGetUnprocessedEventCountIfNoCheckpointExists(t *testing.T) {
 }
 
 func TestGetUnprocessedEventCountWithoutCheckpointReturning1Message(t *testing.T) {
-
 	//After the first message the lastsequencenumber init to 0
 	partitionInfo := eventhub.HubPartitionRuntimeInformation{
 		PartitionID:             "0",
@@ -255,7 +254,6 @@ func TestGetUnprocessedEventCountWithoutCheckpointReturning1Message(t *testing.T
 }
 
 func TestGetUnprocessedEventCountWithoutCheckpointReturning0Message(t *testing.T) {
-
 	//An empty partition starts with an equal value on last-/beginning-sequencenumber other than 0
 	partitionInfo := eventhub.HubPartitionRuntimeInformation{
 		PartitionID:             "0",
@@ -271,7 +269,6 @@ func TestGetUnprocessedEventCountWithoutCheckpointReturning0Message(t *testing.T
 }
 
 func TestGetUnprocessedEventCountWithoutCheckpointReturning2Messages(t *testing.T) {
-
 	partitionInfo := eventhub.HubPartitionRuntimeInformation{
 		PartitionID:             "0",
 		LastSequenceNumber:      1,

pkg/scalers/azure_log_analytics_scaler.go

@@ -85,7 +85,6 @@ func NewAzureLogAnalyticsScaler(resolvedSecrets, metadata, authParams map[string
 }
 
 func parseAzureLogAnalyticsMetadata(resolvedEnv, metadata, authParams map[string]string, podIdentity string) (*azureLogAnalyticsMetadata, error) {
-
 	meta := azureLogAnalyticsMetadata{}
 
 	if podIdentity == "" || podIdentity == "none" {
@@ -281,7 +280,7 @@ func (s *azureLogAnalyticsScaler) executeQuery(query string, tokenInfo tokenData
 	body, statusCode, err := s.executeLogAnalyticsREST(query, tokenInfo)
 
 	//Handle expired token
-	if statusCode == 403 || (body != nil && len(body) > 0 && strings.Contains(string(body), "TokenExpired")) {
+	if statusCode == 403 || (len(body) > 0 && strings.Contains(string(body), "TokenExpired")) {
 		logAnalyticsLog.Info("Token expired, refreshing token...")
 
 		tokenInfo, err := s.refreshAccessToken()
@@ -301,7 +300,7 @@ func (s *azureLogAnalyticsScaler) executeQuery(query string, tokenInfo tokenData
 		return metricsData{}, err
 	}
 
-	if body == nil || len(body) == 0 {
+	if len(body) == 0 {
 		return metricsData{}, fmt.Errorf("Error executing Log Analytics REST API request: empty body")
 	}
 
@@ -311,7 +310,6 @@ func (s *azureLogAnalyticsScaler) executeQuery(query string, tokenInfo tokenData
 	}
 
 	if statusCode == 200 {
-
 		metricsInfo := metricsData{}
 		metricsInfo.threshold = s.metadata.threshold
 		metricsInfo.value = 0
@@ -378,7 +376,6 @@ func (s *azureLogAnalyticsScaler) executeQuery(query string, tokenInfo tokenData
 }
 
 func (s *azureLogAnalyticsScaler) refreshAccessToken() (tokenData, error) {
-
 	tokenInfo, err := s.getAuthorizationToken()
 
 	if err != nil {
@@ -401,9 +398,7 @@ func (s *azureLogAnalyticsScaler) refreshAccessToken() (tokenData, error) {
 }
 
 func (s *azureLogAnalyticsScaler) getAuthorizationToken() (tokenData, error) {
-
 	body, statusCode, err, tokenInfo := []byte{}, 0, *new(error), tokenData{}
-
 	if s.metadata.podIdentity == "" {
 		body, statusCode, err = s.executeAADApicall()
 	} else {
@@ -412,7 +407,7 @@ func (s *azureLogAnalyticsScaler) getAuthorizationToken() (tokenData, error) {
 
 	if err != nil {
 		return tokenData{}, err
-	} else if body == nil || len(body) == 0 {
+	} else if len(body) == 0 {
 		return tokenData{}, fmt.Errorf("Error getting access token: empty body")
 	}
 

pkg/scalers/azure_servicebus_scaler_test.go

@@ -86,7 +86,6 @@ var getServiceBusLengthTestScalers = []azureServiceBusScaler{
 
 func TestParseServiceBusMetadata(t *testing.T) {
 	for _, testData := range parseServiceBusMetadataDataset {
-
 		meta, err := parseAzureServiceBusMetadata(sampleResolvedEnv, testData.metadata, testData.authParams, testData.podIdentity)
 
 		if err != nil && !testData.isError {
@@ -102,7 +101,6 @@ func TestParseServiceBusMetadata(t *testing.T) {
 }
 
 func TestGetServiceBusLength(t *testing.T) {
-
 	t.Log("This test will use the environment variable SERVICEBUS_CONNECTION_STRING if it is set")
 	t.Log("If set, it will connect to the servicebus namespace specified by the connection string & check:")
 	t.Logf("\tQueue '%s' has 1 message\n", queueName)
@@ -123,7 +121,6 @@ func TestGetServiceBusLength(t *testing.T) {
 			if length != 1 {
 				t.Errorf("Expected 1 message, got %d", length)
 			}
-
 		} else {
 			// Just test error message
 			length, err := scaler.GetAzureServiceBusLength(context.TODO())

pkg/scalers/cron_scaler.go

@@ -60,7 +60,6 @@ func getCronTime(location *time.Location, spec string) (int64, error) {
 	c.Stop()
 
 	return cronTime, nil
-
 }
 
 func parseCronMetadata(metadata, resolvedEnv map[string]string) (*cronMetadata, error) {
@@ -157,7 +156,6 @@ func (s *cronScaler) GetMetricSpecForScaling() []v2beta2.MetricSpec {
 
 // GetMetrics finds the current value of the metric
 func (s *cronScaler) GetMetrics(ctx context.Context, metricName string, metricSelector labels.Selector) ([]external_metrics.ExternalMetricValue, error) {
-
 	var currentReplicas = int64(defaultDesiredReplicas)
 	isActive, err := s.IsActive(ctx)
 	if err != nil {

pkg/scalers/external_scaler_test.go

@@ -81,18 +81,16 @@ func TestExternalPushScaler_Run(t *testing.T) {
 	retries := 0
 	defer cancel()
 	for {
-		select {
-		case <-time.After(time.Second * 1):
-			if resultCount == serverCount*iterationCount {
-				t.Logf("resultCount == %d", resultCount)
-				return
-			}
+		<-time.After(time.Second * 1)
+		if resultCount == serverCount*iterationCount {
+			t.Logf("resultCount == %d", resultCount)
+			return
+		}
 
-			retries++
-			if retries > 10 {
-				t.Fatalf("Expected resultCount to be %d after %d retries, but got %d", serverCount*iterationCount, retries, resultCount)
-				return
-			}
+		retries++
+		if retries > 10 {
+			t.Fatalf("Expected resultCount to be %d after %d retries, but got %d", serverCount*iterationCount, retries, resultCount)
+			return
 		}
 	}
 }

pkg/scalers/gcp_pub_sub_scaler.go

@@ -81,7 +81,6 @@ func parsePubSubMetadata(metadata, resolvedEnv map[string]string) (*pubsubMetada
 
 // IsActive checks if there are any messages in the subscription
 func (s *pubsubScaler) IsActive(ctx context.Context) (bool, error) {
-
 	size, err := s.GetSubscriptionSize(ctx)
 
 	if err != nil {
@@ -93,7 +92,6 @@ func (s *pubsubScaler) IsActive(ctx context.Context) (bool, error) {
 }
 
 func (s *pubsubScaler) Close() error {
-
 	if s.client != nil {
 		err := s.client.metricsClient.Close()
 		if err != nil {
@@ -106,7 +104,6 @@ func (s *pubsubScaler) Close() error {
 
 // GetMetricSpecForScaling returns the metric spec for the HPA
 func (s *pubsubScaler) GetMetricSpecForScaling() []v2beta2.MetricSpec {
-
 	// Construct the target subscription size as a quantity
 	targetSubscriptionSizeQty := resource.NewQuantity(int64(s.metadata.targetSubscriptionSize), resource.DecimalSI)
 

pkg/scalers/huawei_cloudeye_scaler.go

@@ -343,5 +343,4 @@ func (h *huaweiCloudeyeScaler) GetCloudeyeMetrics() (float64, error) {
 	}
 
 	return metricValue, nil
-
 }

pkg/scalers/kafka_scaler.go

@@ -337,10 +337,8 @@ func (s *kafkaScaler) getLagForPartition(partition int32, offsets *sarama.Offset
 			return invalidOffset, fmt.Errorf("invalid offset found for topic %s in group %s and partition %d, probably no offset is committed yet", s.metadata.topic, s.metadata.group, partition)
 		}
 		return latestOffset, nil
-
 	}
 	return (latestOffset - consumerOffset), nil
-
 }
 
 // Close closes the kafka admin and client

pkg/scalers/liiklus_scaler.go

@@ -40,7 +40,6 @@ const (
 
 // NewLiiklusScaler creates a new liiklusScaler scaler
 func NewLiiklusScaler(resolvedEnv map[string]string, metadata map[string]string) (Scaler, error) {
-
 	lm, err := parseLiiklusMetadata(metadata)
 	if err != nil {
 		return nil, err
@@ -143,11 +142,9 @@ func (s *liiklusScaler) getLag(ctx context.Context) (uint64, map[uint32]uint64,
 		totalLag += diff
 	}
 	return totalLag, lags, nil
-
 }
 
 func parseLiiklusMetadata(metadata map[string]string) (*liiklusMetadata, error) {
-
 	lagThreshold := defaultLiiklusLagThreshold
 
 	if val, ok := metadata[liiklusLagThresholdMetricName]; ok {