[#1341] .golangci.yml: Replace exportloopref with copyloopvar

exportloopref is deprecated.
gopatch:
```
@@
var index, value identifier
var slice expression
@@
for index, value := range slice {
...
-value := value
...
}

@@
var index, value identifier
var slice expression
@@
for index, value := range slice {
...
-index := index
...
}

@@
var value identifier
var channel expression
@@
for value := range channel {
...
-value := value
...
}
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

.golangci.yml

@@ -67,7 +67,7 @@ linters:
     - bidichk
     - durationcheck
     - exhaustive
-    - exportloopref
+    - copyloopvar
     - gofmt
     - goimports
     - misspell

cmd/frostfs-adm/internal/modules/morph/generate/generate.go

@@ -73,7 +73,6 @@ func initializeWallets(v *viper.Viper, walletDir string, size int) ([]string, er
 			return nil, fmt.Errorf("can't fetch password: %w", err)
 		}
 
-		i := i
 		errG.Go(func() error {
 			p := filepath.Join(walletDir, innerring.GlagoliticLetter(i).String()+".json")
 			f, err := os.OpenFile(p, os.O_CREATE, 0o644)
@@ -107,7 +106,6 @@ func initializeWallets(v *viper.Viper, walletDir string, size int) ([]string, er
 	// Create consensus account with 2*N/3+1 multi-signature.
 	bftCount := smartcontract.GetDefaultHonestNodeCount(size)
 	for i := range wallets {
-		i := i
 		ps := pubs.Copy()
 		errG.Go(func() error {
 			if err := addMultisigAccount(wallets[i], majCount, constants.CommitteeAccountName, passwords[i], ps); err != nil {

cmd/frostfs-cli/modules/container/list.go

@@ -70,7 +70,6 @@ var listContainersCmd = &cobra.Command{
 				continue
 			}
 
-			cnrID := cnrID
 			prmGet.ClientParams.ContainerID = &cnrID
 			res, err := internalclient.GetContainer(cmd.Context(), prmGet)
 			if err != nil {

cmd/frostfs-cli/modules/object/nodes.go

@@ -393,8 +393,6 @@ func getActualPlacement(cmd *cobra.Command, netmap *netmapSDK.NetMap, pk *ecdsa.
 
 	eg, egCtx := errgroup.WithContext(cmd.Context())
 	for _, cand := range candidates {
-		cand := cand
-
 		eg.Go(func() error {
 			cli, err := createClient(egCtx, cmd, cand, pk)
 			if err != nil {
@@ -405,7 +403,6 @@ func getActualPlacement(cmd *cobra.Command, netmap *netmapSDK.NetMap, pk *ecdsa.
 			}
 
 			for _, object := range objects {
-				object := object
 				eg.Go(func() error {
 					stored, err := isObjectStoredOnNode(egCtx, cmd, object.containerID, object.objectID, cli, pk)
 					resultMtx.Lock()

pkg/local_object_storage/blobstor/blobovniczatree/rebuild.go

@@ -160,9 +160,6 @@ func (b *Blobovniczas) moveObjects(ctx context.Context, blz *blobovnicza.Blobovn
 		eg, egCtx := errgroup.WithContext(ctx)
 
 		for addr, data := range batch {
-			addr := addr
-			data := data
-
 			if err := limiter.AcquireWorkSlot(egCtx); err != nil {
 				_ = eg.Wait()
 				return result.Load(), err

pkg/local_object_storage/blobstor/info.go

@@ -43,7 +43,6 @@ func (b *BlobStor) ObjectsCount(ctx context.Context) (uint64, error) {
 
 	eg, egCtx := errgroup.WithContext(ctx)
 	for i := range b.storage {
-		i := i
 		eg.Go(func() error {
 			v, e := b.storage[i].Storage.ObjectsCount(egCtx)
 			if e != nil {

pkg/local_object_storage/engine/control.go

@@ -82,8 +82,6 @@ func (e *StorageEngine) Init(ctx context.Context) error {
 	}
 
 	for id, sh := range e.shards {
-		id := id
-		sh := sh
 		eg.Go(func() error {
 			if err := sh.Init(ctx); err != nil {
 				errCh <- shardInitError{

pkg/local_object_storage/engine/shards.go

@@ -367,7 +367,6 @@ func (e *StorageEngine) closeShards(deletedShards []hashedShard) error {
 	var multiErrGuard sync.Mutex
 	var eg errgroup.Group
 	for _, sh := range deletedShards {
-		sh := sh
 		eg.Go(func() error {
 			err := sh.SetMode(mode.Disabled)
 			if err != nil {

pkg/local_object_storage/engine/writecache.go

@@ -102,7 +102,6 @@ func (e *StorageEngine) SealWriteCache(ctx context.Context, prm SealWriteCachePr
 
 	eg, egCtx := errgroup.WithContext(ctx)
 	for _, shardID := range prm.ShardIDs {
-		shardID := shardID
 		eg.Go(func() error {
 			e.mtx.RLock()
 			sh, ok := e.shards[shardID.String()]

pkg/local_object_storage/pilorama/forest_test.go

@@ -1459,7 +1459,6 @@ func testTreeLastSyncHeight(t *testing.T, f ForestStorage) {
 
 func TestForest_ListTrees(t *testing.T) {
 	for i := range providers {
-		i := i
 		t.Run(providers[i].name, func(t *testing.T) {
 			testTreeListTrees(t, providers[i].construct)
 		})

pkg/local_object_storage/writecache/flush_test.go

@@ -170,7 +170,6 @@ func runFlushTest[Option any](
 
 	t.Run("ignore errors", func(t *testing.T) {
 		for _, f := range failures {
-			f := f
 			t.Run(f.Desc, func(t *testing.T) {
 				errCountOpt, errCount := errCountOption()
 				wc, bs, mb := newCache(t, createCacheFn, smallSize, errCountOpt)

pkg/services/object/get/assemblerec.go

@@ -170,7 +170,6 @@ func (a *assemblerec) processECNodesRequests(ctx context.Context, nodes []placem
 	eg.SetLimit(dataCount)
 
 	for _, ch := range a.ecInfo.localChunks {
-		ch := ch
 		eg.Go(func() error {
 			select {
 			case <-ctx.Done():

pkg/services/object/put/common.go

@@ -71,7 +71,6 @@ func (n *nodeIterator) forEachAddress(ctx context.Context, traverser *placement.
 	var wg sync.WaitGroup
 
 	for _, addr := range addrs {
-		addr := addr
 		if ok := n.mExclude[string(addr.PublicKey())]; ok != nil {
 			if *ok {
 				traverser.SubmitSuccess()

pkg/services/object/put/ec.go

@@ -216,7 +216,6 @@ func (e *ecWriter) writeRawObject(ctx context.Context, obj *objectSDK.Object) er
 		}
 
 		for idx := range parts {
-			idx := idx
 			eg.Go(func() error {
 				return e.writePart(egCtx, parts[idx], idx, nodes, visited)
 			})

pkg/services/policer/ec.go

@@ -357,8 +357,6 @@ func (p *Policer) collectExistedChunks(ctx context.Context, objInfo objectcore.I
 	parts := make([]*objectSDK.Object, objInfo.ECInfo.Total)
 	errGroup, egCtx := errgroup.WithContext(ctx)
 	for idx, nodes := range existedChunks {
-		idx := idx
-		nodes := nodes
 		errGroup.Go(func() error {
 			var objID oid.Address
 			objID.SetContainer(parentAddress.Container())

pkg/services/tree/sync.go

@@ -190,8 +190,6 @@ func (s *Service) applyOperationStream(ctx context.Context, cid cid.ID, treeID s
 
 	var prev *pilorama.Move
 	for m := range operationStream {
-		m := m
-
 		// skip already applied op
 		if prev != nil && prev.Time == m.Time {
 			continue
@@ -287,8 +285,6 @@ func (s *Service) synchronizeTree(ctx context.Context, cid cid.ID, from uint64,
 	allNodesSynced.Store(true)
 
 	for i, n := range nodes {
-		i := i
-		n := n
 		errGroup.Go(func() error {
 			var nodeSynced bool
 			n.IterateNetworkEndpoints(func(addr string) bool {
@@ -421,7 +417,7 @@ func (s *Service) syncContainers(ctx context.Context, cnrs []cid.ID) {
 	var wg sync.WaitGroup
 	for _, cnr := range cnrs {
 		wg.Add(1)
-		cnr := cnr
+
 		err := s.syncPool.Submit(func() {
 			defer wg.Done()
 			s.log.Debug(logs.TreeSyncingContainerTrees, zap.Stringer("cid", cnr))

pkg/services/tree/sync_test.go

@@ -51,8 +51,6 @@ func Test_mergeOperationStreams(t *testing.T) {
 
 			// generate and put values to all chans
 			for i, ch := range nodeOpChans {
-				i := i
-				ch := ch
 				go func() {
 					for _, tm := range tt.opTimes[i] {
 						op := &pilorama.Move{}