[#645] config: Resolve funlen linter

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

cmd/frostfs-node/config.go

@@ -191,6 +191,7 @@ type subStorageCfg struct {
 	openedCacheSize    int
 	initWorkerCount    int
 	initInAdvance      bool
+	rebuildDropTimeout time.Duration
 
 	//  badgerstore-specific
 	indexCacheSize   int64
@@ -199,7 +200,6 @@ type subStorageCfg struct {
 	gcInterval       time.Duration
 	gcDiscardRatio   float64
 	valueLogFileSize int64
-	rebuildDropTimeout time.Duration
 }
 
 // readConfig fills applicationConfiguration with raw configuration values
@@ -909,50 +909,15 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
 	for _, sRead := range shCfg.subStorages {
 		switch sRead.typ {
 		case blobovniczatree.Type:
-			blobTreeOpts := []blobovniczatree.Option{
+			blobovniczaTreeOpts := c.getBlobovniczaTreeOpts(sRead)
-				blobovniczatree.WithRootPath(sRead.path),
-				blobovniczatree.WithPermissions(sRead.perm),
-				blobovniczatree.WithBlobovniczaSize(sRead.size),
-				blobovniczatree.WithBlobovniczaShallowDepth(sRead.depth),
-				blobovniczatree.WithBlobovniczaShallowWidth(sRead.width),
-				blobovniczatree.WithBlobovniczaLeafWidth(sRead.leafWidth),
-				blobovniczatree.WithOpenedCacheSize(sRead.openedCacheSize),
-				blobovniczatree.WithInitWorkerCount(sRead.initWorkerCount),
-				blobovniczatree.WithInitInAdvance(sRead.initInAdvance),
-				blobovniczatree.WithWaitBeforeDropDB(sRead.rebuildDropTimeout),
-				blobovniczatree.WithLogger(c.log),
-				blobovniczatree.WithObjectSizeLimit(shCfg.smallSizeObjectLimit),
-			}
-
-			if c.metricsCollector != nil {
-				blobTreeOpts = append(blobTreeOpts,
-					blobovniczatree.WithMetrics(
-						lsmetrics.NewBlobovniczaTreeMetrics(sRead.path, c.metricsCollector.BlobobvnizcaTreeMetrics()),
-					),
-				)
-			}
 			ss = append(ss, blobstor.SubStorage{
-				Storage: blobovniczatree.NewBlobovniczaTree(blobTreeOpts...),
+				Storage: blobovniczatree.NewBlobovniczaTree(blobovniczaTreeOpts...),
 				Policy: func(_ *objectSDK.Object, data []byte) bool {
 					return uint64(len(data)) < shCfg.smallSizeObjectLimit
 				},
 			})
 		case fstree.Type:
-			fstreeOpts := []fstree.Option{
+			fstreeOpts := c.getFSTreeOpts(sRead)
-				fstree.WithPath(sRead.path),
-				fstree.WithPerm(sRead.perm),
-				fstree.WithDepth(sRead.depth),
-				fstree.WithNoSync(sRead.noSync),
-				fstree.WithLogger(c.log),
-			}
-			if c.metricsCollector != nil {
-				fstreeOpts = append(fstreeOpts,
-					fstree.WithMetrics(
-						lsmetrics.NewFSTreeMetricsWithoutShardID(sRead.path, c.metricsCollector.FSTree()),
-					),
-				)
-			}
-
 			ss = append(ss, blobstor.SubStorage{
 				Storage: fstree.New(fstreeOpts...),
 				Policy: func(_ *objectSDK.Object, _ []byte) bool {
@@ -960,6 +925,22 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
 				},
 			})
 		case badgerstore.Type:
+			badgerStoreOpts := c.getBadgerStoreOpts(sRead)
+			ss = append(ss, blobstor.SubStorage{
+				Storage: badgerstore.New(badgerStoreOpts...),
+				Policy: func(_ *objectSDK.Object, data []byte) bool {
+					return uint64(len(data)) < shCfg.smallSizeObjectLimit
+				},
+			})
+		default:
+			// should never happen, that has already
+			// been handled: when the config was read
+		}
+	}
+	return ss
+}
+
+func (c *cfg) getBadgerStoreOpts(sRead subStorageCfg) []badgerstore.Option {
 	badgerStoreOpts := []badgerstore.Option{
 		badgerstore.WithPath(sRead.path),
 		badgerstore.WithPermissions(sRead.perm),
@@ -975,18 +956,50 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
 			badgerstore.WithMetrics(
 				lsmetrics.NewBadgerStoreMetrics(sRead.path, c.metricsCollector.BadgerStoreMetrics())))
 	}
-			ss = append(ss, blobstor.SubStorage{
+	return badgerStoreOpts
-				Storage: badgerstore.New(badgerStoreOpts...),
-				Policy: func(_ *objectSDK.Object, data []byte) bool {
-					return uint64(len(data)) < shCfg.smallSizeObjectLimit
-				},
-			})
-		default:
-			// should never happen, that has already
-			// been handled: when the config was read
 }
+
+func (c *cfg) getFSTreeOpts(sRead subStorageCfg) []fstree.Option {
+	fstreeOpts := []fstree.Option{
+		fstree.WithPath(sRead.path),
+		fstree.WithPerm(sRead.perm),
+		fstree.WithDepth(sRead.depth),
+		fstree.WithNoSync(sRead.noSync),
+		fstree.WithLogger(c.log),
 	}
-	return ss
+	if c.metricsCollector != nil {
+		fstreeOpts = append(fstreeOpts,
+			fstree.WithMetrics(
+				lsmetrics.NewFSTreeMetricsWithoutShardID(sRead.path, c.metricsCollector.FSTree()),
+			),
+		)
+	}
+	return fstreeOpts
+}
+
+func (c *cfg) getBlobovniczaTreeOpts(sRead subStorageCfg) []blobovniczatree.Option {
+	blobTreeOpts := []blobovniczatree.Option{
+		blobovniczatree.WithRootPath(sRead.path),
+		blobovniczatree.WithPermissions(sRead.perm),
+		blobovniczatree.WithBlobovniczaSize(sRead.size),
+		blobovniczatree.WithBlobovniczaShallowDepth(sRead.depth),
+		blobovniczatree.WithBlobovniczaShallowWidth(sRead.width),
+		blobovniczatree.WithBlobovniczaLeafWidth(sRead.leafWidth),
+		blobovniczatree.WithOpenedCacheSize(sRead.openedCacheSize),
+		blobovniczatree.WithInitWorkerCount(sRead.initWorkerCount),
+		blobovniczatree.WithInitInAdvance(sRead.initInAdvance),
+		blobovniczatree.WithLogger(c.log),
+		blobovniczatree.WithWaitBeforeDropDB(sRead.rebuildDropTimeout),
+	}
+
+	if c.metricsCollector != nil {
+		blobTreeOpts = append(blobTreeOpts,
+			blobovniczatree.WithMetrics(
+				lsmetrics.NewBlobovniczaTreeMetrics(sRead.path, c.metricsCollector.BlobobvnizcaTreeMetrics()),
+			),
+		)
+	}
+	return blobTreeOpts
 }
 
 func (c *cfg) getShardOpts(shCfg shardCfg) shardOptsWithID {