Enable more linters, and remove mal-functioned milestoned issue action.

Signed-off-by: Xun Jiang <blackpiglet@gmail.com>

changelogs/unreleased/6194-blackpiglet

@@ -0,0 +1 @@
+Enable more linters, and remove mal-functioned milestoned issue action.

golangci.yaml

@@ -250,8 +250,6 @@ linters-settings:
   rowserrcheck:
     packages:
       - github.com/jmoiron/sqlx
-  staticcheck:
-
   testpackage:
     # regexp pattern to skip files
     skip-regexp: (export|internal)_test\.go
@@ -293,17 +291,30 @@ linters-settings:
 linters:
   disable-all: true
   enable:
+    - asasalint
+    - asciicheck
+    - bidichk
     - bodyclose
+    - dogsled
+    - durationcheck
+    - exportloopref
     - goconst
     - gofmt
     - goheader
     - goimports
+    - goprintffuncname
     - gosec
+    - gosimple
     - govet
+    - importas
+    - ineffassign
     - misspell
+    - nakedret
+    - nosprintfhostport
     - staticcheck
     - stylecheck
     - typecheck
+    - unconvert
     - unparam
     - unused
     - usestdlibvars

pkg/backup/item_backupper.go

@@ -89,7 +89,7 @@ type FileForArchive struct {
 func (ib *itemBackupper) backupItem(logger logrus.FieldLogger, obj runtime.Unstructured, groupResource schema.GroupResource, preferredGVR schema.GroupVersionResource, mustInclude, finalize bool) (bool, []FileForArchive, error) {
 	selectedForBackup, files, err := ib.backupItemInternal(logger, obj, groupResource, preferredGVR, mustInclude, finalize)
 	// return if not selected, an error occurred, there are no files to add, or for finalize
-	if selectedForBackup == false || err != nil || len(files) == 0 || finalize {
+	if !selectedForBackup || err != nil || len(files) == 0 || finalize {
 		return selectedForBackup, files, err
 	}
 	for _, file := range files {
@@ -340,9 +340,7 @@ func (ib *itemBackupper) executeActions(
 		mustInclude := u.GetAnnotations()[mustIncludeAdditionalItemAnnotation] == "true" || finalize
 		// remove the annotation as it's for communication between BIA and velero server,
 		// we don't want the resource be restored with this annotation.
-		if _, ok := u.GetAnnotations()[mustIncludeAdditionalItemAnnotation]; ok {
-			delete(u.GetAnnotations(), mustIncludeAdditionalItemAnnotation)
-		}
+		delete(u.GetAnnotations(), mustIncludeAdditionalItemAnnotation)
 		obj = u
 
 		// If async plugin started async operation, add it to the ItemOperations list

pkg/builder/backup_builder.go

@@ -83,7 +83,7 @@ func (b *BackupBuilder) ObjectMeta(opts ...ObjectMetaOpt) *BackupBuilder {
 
 // FromSchedule sets the Backup's spec and labels from the Schedule template
 func (b *BackupBuilder) FromSchedule(schedule *velerov1api.Schedule) *BackupBuilder {
-	var labels = make(map[string]string)
+	var labels map[string]string
 
 	// Check if there's explicit Labels defined in the Schedule object template
 	// and if present then copy it to the backup object.

pkg/cmd/server/server.go

@@ -617,7 +617,7 @@ func (s *server) getCSIVolumeSnapshotListers() (vsLister snapshotv1listers.Volum
 		s.logger.Errorf("fail to find snapshot v1 schema: %s", err)
 	}
 
-	return
+	return vsLister, err
 }
 
 func (s *server) runControllers(defaultVolumeSnapshotLocations map[string]string) error {

pkg/cmd/util/output/output.go

@@ -149,71 +149,71 @@ func printTable(cmd *cobra.Command, obj runtime.Object) (bool, error) {
 	// 1. generate table
 	var table *metav1.Table
 
-	switch obj.(type) {
+	switch objType := obj.(type) {
 	case *velerov1api.Backup:
 		table = &metav1.Table{
 			ColumnDefinitions: backupColumns,
-			Rows:              printBackup(obj.(*velerov1api.Backup)),
+			Rows:              printBackup(objType),
 		}
 	case *velerov1api.BackupList:
 		table = &metav1.Table{
 			ColumnDefinitions: backupColumns,
-			Rows:              printBackupList(obj.(*velerov1api.BackupList)),
+			Rows:              printBackupList(objType),
 		}
 	case *velerov1api.Restore:
 		table = &metav1.Table{
 			ColumnDefinitions: restoreColumns,
-			Rows:              printRestore(obj.(*velerov1api.Restore)),
+			Rows:              printRestore(objType),
 		}
 	case *velerov1api.RestoreList:
 		table = &metav1.Table{
 			ColumnDefinitions: restoreColumns,
-			Rows:              printRestoreList(obj.(*velerov1api.RestoreList)),
+			Rows:              printRestoreList(objType),
 		}
 	case *velerov1api.Schedule:
 		table = &metav1.Table{
 			ColumnDefinitions: scheduleColumns,
-			Rows:              printSchedule(obj.(*velerov1api.Schedule)),
+			Rows:              printSchedule(objType),
 		}
 	case *velerov1api.ScheduleList:
 		table = &metav1.Table{
 			ColumnDefinitions: scheduleColumns,
-			Rows:              printScheduleList(obj.(*velerov1api.ScheduleList)),
+			Rows:              printScheduleList(objType),
 		}
 	case *velerov1api.BackupRepository:
 		table = &metav1.Table{
 			ColumnDefinitions: backupRepoColumns,
-			Rows:              printBackupRepo(obj.(*velerov1api.BackupRepository)),
+			Rows:              printBackupRepo(objType),
 		}
 	case *velerov1api.BackupRepositoryList:
 		table = &metav1.Table{
 			ColumnDefinitions: backupRepoColumns,
-			Rows:              printBackupRepoList(obj.(*velerov1api.BackupRepositoryList)),
+			Rows:              printBackupRepoList(objType),
 		}
 	case *velerov1api.BackupStorageLocation:
 		table = &metav1.Table{
 			ColumnDefinitions: backupStorageLocationColumns,
-			Rows:              printBackupStorageLocation(obj.(*velerov1api.BackupStorageLocation)),
+			Rows:              printBackupStorageLocation(objType),
 		}
 	case *velerov1api.BackupStorageLocationList:
 		table = &metav1.Table{
 			ColumnDefinitions: backupStorageLocationColumns,
-			Rows:              printBackupStorageLocationList(obj.(*velerov1api.BackupStorageLocationList)),
+			Rows:              printBackupStorageLocationList(objType),
 		}
 	case *velerov1api.VolumeSnapshotLocation:
 		table = &metav1.Table{
 			ColumnDefinitions: volumeSnapshotLocationColumns,
-			Rows:              printVolumeSnapshotLocation(obj.(*velerov1api.VolumeSnapshotLocation)),
+			Rows:              printVolumeSnapshotLocation(objType),
 		}
 	case *velerov1api.VolumeSnapshotLocationList:
 		table = &metav1.Table{
 			ColumnDefinitions: volumeSnapshotLocationColumns,
-			Rows:              printVolumeSnapshotLocationList(obj.(*velerov1api.VolumeSnapshotLocationList)),
+			Rows:              printVolumeSnapshotLocationList(objType),
 		}
 	case *velerov1api.ServerStatusRequest:
 		table = &metav1.Table{
 			ColumnDefinitions: pluginColumns,
-			Rows:              printPluginList(obj.(*velerov1api.ServerStatusRequest)),
+			Rows:              printPluginList(objType),
 		}
 	default:
 		return false, errors.Errorf("type %T is not supported", obj)

pkg/controller/backup_controller.go

@@ -463,7 +463,7 @@ func (b *backupReconciler) prepareBackupRequest(backup *velerov1api.Backup, logg
 
 	// validate that only one exists orLabelSelector or just labelSelector (singular)
 	if request.Spec.OrLabelSelectors != nil && request.Spec.LabelSelector != nil {
-		request.Status.ValidationErrors = append(request.Status.ValidationErrors, fmt.Sprintf("encountered labelSelector as well as orLabelSelectors in backup spec, only one can be specified"))
+		request.Status.ValidationErrors = append(request.Status.ValidationErrors, "encountered labelSelector as well as orLabelSelectors in backup spec, only one can be specified")
 	}
 
 	if request.Spec.ResourcePolicy != nil && request.Spec.ResourcePolicy.Kind == resourcepolicies.ConfigmapRefType {

pkg/controller/restore_controller.go

@@ -270,7 +270,7 @@ func (r *restoreReconciler) validateAndComplete(restore *api.Restore) backupInfo
 
 	// validate that only one exists orLabelSelector or just labelSelector (singular)
 	if restore.Spec.OrLabelSelectors != nil && restore.Spec.LabelSelector != nil {
-		restore.Status.ValidationErrors = append(restore.Status.ValidationErrors, fmt.Sprintf("encountered labelSelector as well as orLabelSelectors in restore spec, only one can be specified"))
+		restore.Status.ValidationErrors = append(restore.Status.ValidationErrors, "encountered labelSelector as well as orLabelSelectors in restore spec, only one can be specified")
 	}
 
 	// validate that exactly one of BackupName and ScheduleName have been specified

pkg/itemoperationmap/backup_operation_map.go

@@ -72,10 +72,7 @@ func (m *BackupItemOperationsMap) DeleteOperationsForBackup(backupName string) {
 	// lock operations map
 	m.opsLock.Lock()
 	defer m.opsLock.Unlock()
-	if _, ok := m.opsMap[backupName]; ok {
-		delete(m.opsMap, backupName)
-	}
-	return
+	delete(m.opsMap, backupName)
 }
 
 // UploadProgressAndPutOperationsForBackup will upload the item operations for this backup to

pkg/itemoperationmap/restore_operation_map.go

@@ -72,10 +72,7 @@ func (m *RestoreItemOperationsMap) DeleteOperationsForRestore(restoreName string
 	// lock operations map
 	m.opsLock.Lock()
 	defer m.opsLock.Unlock()
-	if _, ok := m.opsMap[restoreName]; ok {
-		delete(m.opsMap, restoreName)
-	}
-	return
+	delete(m.opsMap, restoreName)
 }
 
 // UploadProgressAndPutOperationsForRestore will upload the item operations for this restore to

pkg/plugin/clientmgmt/process/logrus_adapter.go

@@ -161,7 +161,6 @@ func (l *logrusAdapter) StandardLogger(opts *hclog.StandardLoggerOptions) *log.L
 // Updates the level. This should affect all sub-loggers as well. If an
 // implementation cannot update the level on the fly, it should no-op.
 func (l *logrusAdapter) SetLevel(_ hclog.Level) {
-	return
 }
 
 // ImpliedArgs returns With key/value pairs

pkg/plugin/framework/common/server_errors.go

@@ -17,7 +17,6 @@ limitations under the License.
 package common
 
 import (
-	//lint:ignore SA1019 grpc-go still depends on github.com/golang/protobuf/proto
 	goproto "github.com/golang/protobuf/proto"
 	"github.com/pkg/errors"
 	"google.golang.org/grpc/codes"

pkg/restic/exec_commands.go

@@ -156,7 +156,7 @@ func decodeBackupStatusLine(lastLine []byte) (backupStatusLine, error) {
 // have a newline at the end of it, so this returns the substring between the
 // last two newlines.
 func getLastLine(b []byte) []byte {
-	if b == nil || len(b) == 0 {
+	if len(b) == 0 {
 		return []byte("")
 	}
 	// subslice the byte array to ignore the newline at the end of the string

pkg/restore/service_action.go

@@ -111,13 +111,13 @@ func deleteNodePorts(service *corev1api.Service) error {
 				}
 				if nodePortBool {
 					nodePortInt := 0
-					switch nodePort.(type) {
+					switch nodePort := nodePort.(type) {
 					case int32:
-						nodePortInt = int(nodePort.(int32))
+						nodePortInt = int(nodePort)
 					case float64:
-						nodePortInt = int(nodePort.(float64))
+						nodePortInt = int(nodePort)
 					case string:
-						nodePortInt, err = strconv.Atoi(nodePort.(string))
+						nodePortInt, err = strconv.Atoi(nodePort)
 						if err != nil {
 							return errors.WithStack(err)
 						}

pkg/test/tar_writer.go

@@ -72,11 +72,11 @@ func (tw *TarWriter) Add(name string, obj interface{}) *TarWriter {
 	var data []byte
 	var err error
 
-	switch obj.(type) {
+	switch objType := obj.(type) {
 	case runtime.Object:
-		data, err = encode.Encode(obj.(runtime.Object), "json")
+		data, err = encode.Encode(objType, "json")
 	case []byte:
-		data = obj.([]byte)
+		data = objType
 	default:
 		data, err = json.Marshal(obj)
 	}

pkg/uploader/kopia/snapshot.go

@@ -232,7 +232,7 @@ func reportSnapshotStatus(manifest *snapshot.Manifest, policyTree *policy.Tree)
 	if ds := manifest.RootEntry.DirSummary; ds != nil {
 		for _, ent := range ds.FailedEntries {
 			policy := policyTree.DefinedPolicy()
-			if !(policy != nil && *policy.ErrorHandlingPolicy.IgnoreUnknownTypes == true && strings.Contains(ent.Error, fs.ErrUnknown.Error())) {
+			if !(policy != nil && bool(*policy.ErrorHandlingPolicy.IgnoreUnknownTypes) && strings.Contains(ent.Error, fs.ErrUnknown.Error())) {
 				errs = append(errs, fmt.Sprintf("Error when processing %v: %v", ent.EntryPath, ent.Error))
 			}
 		}

pkg/util/boolptr/boolptr.go

@@ -18,12 +18,12 @@ package boolptr
 
 // IsSetToTrue returns true if and only if the bool pointer is non-nil and set to true.
 func IsSetToTrue(b *bool) bool {
-	return b != nil && *b == true
+	return b != nil && *b
 }
 
 // IsSetToFalse returns true if and only if the bool pointer is non-nil and set to false.
 func IsSetToFalse(b *bool) bool {
-	return b != nil && *b == false
+	return b != nil && !*b
 }
 
 // True returns a *bool whose underlying value is true.

pkg/util/collections/includes_excludes.go

@@ -138,7 +138,7 @@ func (ie *GlobalIncludesExcludes) ShouldInclude(typeName string) bool {
 		return false
 	}
 
-	if resource.Namespaced == false && boolptr.IsSetToFalse(ie.includeClusterResources) {
+	if !resource.Namespaced && boolptr.IsSetToFalse(ie.includeClusterResources) {
 		ie.logger.Info("Skipping resource %s, because it's cluster-scoped, and IncludeClusterResources is set to false.", typeName)
 		return false
 	}
@@ -150,7 +150,7 @@ func (ie *GlobalIncludesExcludes) ShouldInclude(typeName string) bool {
 	// may still be backed up if triggered by a custom action (e.g. PVC->PV).
 	// If we're processing namespaces themselves, we will not skip here, they may be
 	// filtered out later.
-	if typeName != kuberesource.Namespaces.String() && resource.Namespaced == false &&
+	if typeName != kuberesource.Namespaces.String() && !resource.Namespaced &&
 		ie.includeClusterResources == nil && !ie.namespaceFilter.IncludeEverything() {
 		ie.logger.Infof("Skipping resource %s, because it's cluster-scoped and only specific namespaces or namespace scope types are included in the backup.", typeName)
 		return false