[#168] node: Refactor config initialization

Resolve funlen linter for initCfg function

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

cmd/frostfs-node/config.go

@@ -541,7 +541,6 @@ type cfgReputation struct {
 
 var persistateSideChainLastBlockKey = []byte("side_chain_last_processed_block")
 
-// nolint: funlen
 func initCfg(appCfg *config.Config) *cfg {
 	c := &cfg{}
 
@@ -558,86 +557,29 @@ func initCfg(appCfg *config.Config) *cfg {
 	log, err := logger.NewLogger(logPrm)
 	fatalOnErr(err)
 
-	var netAddr network.AddressGroup
+	c.internals = initInternals(appCfg, log)
 
 	relayOnly := nodeconfig.Relay(appCfg)
-	if !relayOnly {
-		netAddr = nodeconfig.BootstrapAddresses(appCfg)
-	}
-
-	maxChunkSize := uint64(maxMsgSize) * 3 / 4          // 25% to meta, 75% to payload
-	maxAddrAmount := uint64(maxChunkSize) / addressSize // each address is about 72 bytes
 
 	netState := newNetworkState()
 
-	persistate, err := state.NewPersistentStorage(nodeconfig.PersistentState(appCfg).Path())
+	c.shared = initShared(appCfg, key, netState, relayOnly)
-	fatalOnErr(err)
 
-	containerWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
-	fatalOnErr(err)
-
-	netmapWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
-	fatalOnErr(err)
-
-	reputationWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
-	fatalOnErr(err)
-
-	c.internals = internals{
-		done:         make(chan struct{}),
-		appCfg:       appCfg,
-		internalErr:  make(chan error),
-		log:          log,
-		wg:           new(sync.WaitGroup),
-		apiVersion:   version.Current(),
-		healthStatus: atomic.NewInt32(int32(control.HealthStatus_HEALTH_STATUS_UNDEFINED)),
-	}
-
-	cacheOpts := cache.ClientCacheOpts{
-		DialTimeout:      apiclientconfig.DialTimeout(appCfg),
-		StreamTimeout:    apiclientconfig.StreamTimeout(appCfg),
-		Key:              &key.PrivateKey,
-		AllowExternal:    apiclientconfig.AllowExternal(appCfg),
-		ReconnectTimeout: apiclientconfig.ReconnectTimeout(appCfg),
-	}
-	c.shared = shared{
-		key:            key,
-		binPublicKey:   key.PublicKey().Bytes(),
-		localAddr:      netAddr,
-		respSvc:        response.NewService(response.WithNetworkState(netState)),
-		clientCache:    cache.NewSDKClientCache(cacheOpts),
-		bgClientCache:  cache.NewSDKClientCache(cacheOpts),
-		putClientCache: cache.NewSDKClientCache(cacheOpts),
-		persistate:     persistate,
-	}
 	c.cfgAccounting = cfgAccounting{
 		scriptHash: contractsconfig.Balance(appCfg),
 	}
-	c.cfgContainer = cfgContainer{
+	c.cfgContainer = initContainer(appCfg)
-		scriptHash: contractsconfig.Container(appCfg),
+
-		workerPool: containerWorkerPool,
+	c.cfgNetmap = initNetmap(appCfg, netState, relayOnly)
-	}
+
-	c.cfgNetmap = cfgNetmap{
+	c.cfgGRPC = initCfgGRPC()
-		scriptHash:          contractsconfig.Netmap(appCfg),
+
-		state:               netState,
-		workerPool:          netmapWorkerPool,
-		needBootstrap:       !relayOnly,
-		reBoostrapTurnedOff: atomic.NewBool(relayOnly),
-	}
-	c.cfgGRPC = cfgGRPC{
-		maxChunkSize:  maxChunkSize,
-		maxAddrAmount: maxAddrAmount,
-	}
 	c.cfgMorph = cfgMorph{
 		proxyScriptHash: contractsconfig.Proxy(appCfg),
 	}
-	c.cfgObject = cfgObject{
+	c.cfgObject = initCfgObject(appCfg)
-		pool:              initObjectPool(appCfg),
+
-		tombstoneLifetime: objectconfig.TombstoneLifetime(appCfg),
+	c.cfgReputation = initReputation(appCfg)
-	}
-	c.cfgReputation = cfgReputation{
-		scriptHash: contractsconfig.Reputation(appCfg),
-		workerPool: reputationWorkerPool,
-	}
 
 	user.IDFromKey(&c.ownerIDFromKey, key.PrivateKey.PublicKey)
 
@@ -652,6 +594,98 @@ func initCfg(appCfg *config.Config) *cfg {
 	return c
 }
 
+func initInternals(appCfg *config.Config, log *logger.Logger) internals {
+	return internals{
+		done:         make(chan struct{}),
+		appCfg:       appCfg,
+		internalErr:  make(chan error),
+		log:          log,
+		wg:           new(sync.WaitGroup),
+		apiVersion:   version.Current(),
+		healthStatus: atomic.NewInt32(int32(control.HealthStatus_HEALTH_STATUS_UNDEFINED)),
+	}
+}
+
+func initShared(appCfg *config.Config, key *keys.PrivateKey, netState *networkState, relayOnly bool) shared {
+	var netAddr network.AddressGroup
+
+	if !relayOnly {
+		netAddr = nodeconfig.BootstrapAddresses(appCfg)
+	}
+
+	persistate, err := state.NewPersistentStorage(nodeconfig.PersistentState(appCfg).Path())
+	fatalOnErr(err)
+
+	cacheOpts := cache.ClientCacheOpts{
+		DialTimeout:      apiclientconfig.DialTimeout(appCfg),
+		StreamTimeout:    apiclientconfig.StreamTimeout(appCfg),
+		Key:              &key.PrivateKey,
+		AllowExternal:    apiclientconfig.AllowExternal(appCfg),
+		ReconnectTimeout: apiclientconfig.ReconnectTimeout(appCfg),
+	}
+
+	return shared{
+		key:            key,
+		binPublicKey:   key.PublicKey().Bytes(),
+		localAddr:      netAddr,
+		respSvc:        response.NewService(response.WithNetworkState(netState)),
+		clientCache:    cache.NewSDKClientCache(cacheOpts),
+		bgClientCache:  cache.NewSDKClientCache(cacheOpts),
+		putClientCache: cache.NewSDKClientCache(cacheOpts),
+		persistate:     persistate,
+	}
+}
+
+func initNetmap(appCfg *config.Config, netState *networkState, relayOnly bool) cfgNetmap {
+	netmapWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
+	fatalOnErr(err)
+
+	return cfgNetmap{
+		scriptHash:          contractsconfig.Netmap(appCfg),
+		state:               netState,
+		workerPool:          netmapWorkerPool,
+		needBootstrap:       !relayOnly,
+		reBoostrapTurnedOff: atomic.NewBool(relayOnly),
+	}
+}
+
+func initContainer(appCfg *config.Config) cfgContainer {
+	containerWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
+	fatalOnErr(err)
+
+	return cfgContainer{
+		scriptHash: contractsconfig.Container(appCfg),
+		workerPool: containerWorkerPool,
+	}
+}
+
+func initReputation(appCfg *config.Config) cfgReputation {
+	reputationWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
+	fatalOnErr(err)
+
+	return cfgReputation{
+		scriptHash: contractsconfig.Reputation(appCfg),
+		workerPool: reputationWorkerPool,
+	}
+}
+
+func initCfgGRPC() cfgGRPC {
+	maxChunkSize := uint64(maxMsgSize) * 3 / 4          // 25% to meta, 75% to payload
+	maxAddrAmount := uint64(maxChunkSize) / addressSize // each address is about 72 bytes
+
+	return cfgGRPC{
+		maxChunkSize:  maxChunkSize,
+		maxAddrAmount: maxAddrAmount,
+	}
+}
+
+func initCfgObject(appCfg *config.Config) cfgObject {
+	return cfgObject{
+		pool:              initObjectPool(appCfg),
+		tombstoneLifetime: objectconfig.TombstoneLifetime(appCfg),
+	}
+}
+
 func (c *cfg) engineOpts() []engine.Option {
 	opts := make([]engine.Option, 0, 4)