[project] Unused yaml files, staticcheck fixes, dead tests that only delay build (#2755)

* [project] Unused yaml files

* [core] Remove dead tx_cacher.go

* [project] Further fixes from staticcheck

.coveralls.yml

@@ -1,2 +0,0 @@
-repo_token: cr4Aim5IFC8A7IvStlMHQbVMRvBhRq0YH
-

api/service/blockproposal/service.go

@@ -47,9 +47,7 @@ func (s *Service) StopService() {
 }
 
 // NotifyService notify service
-func (s *Service) NotifyService(params map[string]interface{}) {
-	return
-}
+func (s *Service) NotifyService(params map[string]interface{}) {}
 
 // SetMessageChan sets up message channel to service.
 func (s *Service) SetMessageChan(messageChan chan *msg_pb.Message) {

api/service/clientsupport/service.go

@@ -52,9 +52,7 @@ func (s *Service) SetMessageChan(messageChan chan *msg_pb.Message) {
 }
 
 // NotifyService notify service
-func (s *Service) NotifyService(params map[string]interface{}) {
-	return
-}
+func (s *Service) NotifyService(params map[string]interface{}) {}
 
 // APIs for the services.
 func (s *Service) APIs() []rpc.API {

api/service/consensus/service.go

@@ -41,9 +41,7 @@ func (s *Service) StopService() {
 }
 
 // NotifyService notify service
-func (s *Service) NotifyService(params map[string]interface{}) {
-	return
-}
+func (s *Service) NotifyService(params map[string]interface{}) {}
 
 // SetMessageChan sets up message channel to service.
 func (s *Service) SetMessageChan(messageChan chan *msg_pb.Message) {

api/service/discovery/discovery_test.go

@@ -12,11 +12,7 @@ import (
 	"github.com/harmony-one/harmony/p2p/p2pimpl"
 )
 
-var (
-	ip       = "127.0.0.1"
-	port     = "7099"
-	dService *Service
-)
+var dService *Service
 
 func TestDiscoveryService(t *testing.T) {
 	nodePriKey, _, err := utils.LoadKeyFromFile("/tmp/127.0.0.1.12345.key")

api/service/explorer/service.go

@@ -160,9 +160,7 @@ func (s *Service) GetTotalSupply(w http.ResponseWriter, r *http.Request) {
 }
 
 // NotifyService notify service.
-func (s *Service) NotifyService(params map[string]interface{}) {
-	return
-}
+func (s *Service) NotifyService(params map[string]interface{}) {}
 
 // SetMessageChan sets up message channel to service.
 func (s *Service) SetMessageChan(messageChan chan *msg_pb.Message) {

api/service/manager_test.go

@@ -1,61 +1,12 @@
 package service
 
 import (
-	"fmt"
 	"testing"
-	"time"
 
-	"github.com/ethereum/go-ethereum/rpc"
 	msg_pb "github.com/harmony-one/harmony/api/proto/message"
 	nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
 )
 
-type SupportSyncingTest struct {
-	msgChan chan *msg_pb.Message
-	status  *int
-}
-
-func (s *SupportSyncingTest) StartService() {
-	fmt.Println("SupportSyncingTest starting")
-	if s.status != nil {
-		*s.status = 1
-	}
-}
-
-func (s *SupportSyncingTest) StopService() {
-	fmt.Println("SupportSyncingTest stopping")
-	if s.status != nil {
-		*s.status = 2
-	}
-}
-
-func (s *SupportSyncingTest) NotifyService(data map[string]interface{}) {
-	t := data["test"].(*testing.T)
-
-	if s.msgChan != data["chan"].(chan *msg_pb.Message) {
-		t.Error("message chan is not equal to the one from the passing params")
-	}
-}
-func (s *SupportSyncingTest) SetMessageChan(msgChan chan *msg_pb.Message) {
-	s.msgChan = msgChan
-}
-
-func (s *SupportSyncingTest) APIs() []rpc.API { return nil }
-
-// Test TakeAction.
-func TestTakeAction(t *testing.T) {
-	m := &Manager{}
-	m.SetupServiceManager()
-
-	for i := 0; i < 2; i++ {
-		select {
-		case <-time.After(100 * time.Millisecond):
-			return
-		}
-	}
-
-}
-
 func TestMessageChan(t *testing.T) {
 	m := &Manager{}
 	m.SetupServiceManager()
@@ -65,9 +16,15 @@ func TestMessageChan(t *testing.T) {
 
 func TestInit(t *testing.T) {
 	if GroupIDShards[nodeconfig.ShardID(0)] != nodeconfig.NewGroupIDByShardID(0) {
-		t.Errorf("GroupIDShards[0]: %v != GroupIDBeacon: %v", GroupIDShards[nodeconfig.ShardID(0)], nodeconfig.NewGroupIDByShardID(0))
+		t.Errorf("GroupIDShards[0]: %v != GroupIDBeacon: %v",
+			GroupIDShards[nodeconfig.ShardID(0)],
+			nodeconfig.NewGroupIDByShardID(0),
+		)
 	}
 	if len(GroupIDShards) != nodeconfig.MaxShards {
-		t.Errorf("len(GroupIDShards): %v != TotalShards: %v", len(GroupIDShards), nodeconfig.MaxShards)
+		t.Errorf("len(GroupIDShards): %v != TotalShards: %v",
+			len(GroupIDShards),
+			nodeconfig.MaxShards,
+		)
 	}
 }

api/service/networkinfo/service.go

@@ -201,10 +201,14 @@ func (s *Service) DoService() {
 			libp2pdis.Advertise(ctx, s.discovery, string(s.Rendezvous))
 			// 0 is beacon chain FIXME: use a constant
 			libp2pdis.Advertise(ctx, s.discovery, string(nodeconfig.NewClientGroupIDByShardID(0)))
-			utils.Logger().Info().Str("Rendezvous", string(s.Rendezvous)).Msg("Successfully announced!")
+			utils.Logger().Info().
+				Str("Rendezvous", string(s.Rendezvous)).
+				Msg("Successfully announced!")
 		default:
 			var err error
-			s.peerInfo, err = s.discovery.FindPeers(ctx, string(s.Rendezvous), coredis.Limit(discoveryLimit))
+			s.peerInfo, err = s.discovery.FindPeers(
+				ctx, string(s.Rendezvous), coredis.Limit(discoveryLimit),
+			)
 			if err != nil {
 				utils.Logger().Error().Err(err).Msg("FindPeers")
 				return
@@ -224,11 +228,6 @@ func (s *Service) findPeers(ctx context.Context) {
 	}
 	for peer := range s.peerInfo {
 		if peer.ID != s.Host.GetP2PHost().ID() && len(peer.ID) > 0 {
-			// utils.Logger().Info().
-			// 	Interface("peer", peer.ID).
-			// 	Interface("addr", peer.Addrs).
-			// 	Interface("my ID", s.Host.GetP2PHost().ID()).
-			// 	Msg("Found Peer")
 			if err := s.Host.GetP2PHost().Connect(ctx, peer); err != nil {
 				utils.Logger().Warn().Err(err).Interface("peer", peer).Msg("can't connect to peer node")
 				// break if the node can't connect to peers, waiting for another peer
@@ -260,7 +259,6 @@ func (s *Service) findPeers(ctx context.Context) {
 	}
 
 	utils.Logger().Info().Msg("PeerInfo Channel Closed")
-	return
 }
 
 // StopService stops network info service.
@@ -279,9 +277,7 @@ func (s *Service) StopService() {
 }
 
 // NotifyService notify service
-func (s *Service) NotifyService(params map[string]interface{}) {
-	return
-}
+func (s *Service) NotifyService(params map[string]interface{}) {}
 
 // SetMessageChan sets up message channel to service.
 func (s *Service) SetMessageChan(messageChan chan *msg_pb.Message) {

api/service/syncing/syncing.go

@@ -166,7 +166,7 @@ func (sc *SyncConfig) FindPeerByHash(peerHash []byte) *SyncPeerConfig {
 	sc.mtx.RLock()
 	defer sc.mtx.RUnlock()
 	for _, pc := range sc.peers {
-		if bytes.Compare(pc.peerHash, peerHash) == 0 {
+		if bytes.Equal(pc.peerHash, peerHash) {
 			return pc
 		}
 	}
@@ -493,7 +493,7 @@ func (ss *StateSync) getMaxConsensusBlockFromParentHash(parentHash common.Hash)
 	ss.syncConfig.ForEachPeer(func(peerConfig *SyncPeerConfig) (brk bool) {
 		for _, block := range peerConfig.newBlocks {
 			ph := block.ParentHash()
-			if bytes.Compare(ph[:], parentHash[:]) == 0 {
+			if bytes.Equal(ph[:], parentHash[:]) {
 				candidateBlocks = append(candidateBlocks, block)
 				break
 			}
@@ -521,7 +521,7 @@ func (ss *StateSync) getMaxConsensusBlockFromParentHash(parentHash common.Hash)
 func (ss *StateSync) getBlockFromOldBlocksByParentHash(parentHash common.Hash) *types.Block {
 	for _, block := range ss.commonBlocks {
 		ph := block.ParentHash()
-		if bytes.Compare(ph[:], parentHash[:]) == 0 {
+		if bytes.Equal(ph[:], parentHash[:]) {
 			return block
 		}
 	}
@@ -531,7 +531,7 @@ func (ss *StateSync) getBlockFromOldBlocksByParentHash(parentHash common.Hash) *
 func (ss *StateSync) getBlockFromLastMileBlocksByParentHash(parentHash common.Hash) *types.Block {
 	for _, block := range ss.lastMileBlocks {
 		ph := block.ParentHash()
-		if bytes.Compare(ph[:], parentHash[:]) == 0 {
+		if bytes.Equal(ph[:], parentHash[:]) {
 			return block
 		}
 	}
@@ -773,40 +773,33 @@ func (ss *StateSync) SyncLoop(bc *core.BlockChain, worker *worker.Worker, isBeac
 	// remove SyncLoopFrequency
 	ticker := time.NewTicker(SyncLoopFrequency * time.Second)
 	defer ticker.Stop()
-Loop:
-	for {
-		select {
-		case <-ticker.C:
-			otherHeight := ss.getMaxPeerHeight(isBeacon)
-			currentHeight := bc.CurrentBlock().NumberU64()
-
-			if currentHeight >= otherHeight {
-				utils.Logger().Info().
-					Msgf("[SYNC] Node is now IN SYNC! (isBeacon: %t, ShardID: %d, otherHeight: %d, currentHeight: %d)",
-						isBeacon, bc.ShardID(), otherHeight, currentHeight)
-				break Loop
-			} else {
-				utils.Logger().Debug().
-					Msgf("[SYNC] Node is Not in Sync (isBeacon: %t, ShardID: %d, otherHeight: %d, currentHeight: %d)",
-						isBeacon, bc.ShardID(), otherHeight, currentHeight)
-			}
-			startHash := bc.CurrentBlock().Hash()
-			size := uint32(otherHeight - currentHeight)
-			if size > SyncLoopBatchSize {
-				size = SyncLoopBatchSize
-			}
-			err := ss.ProcessStateSync(startHash[:], size, bc, worker)
-			if err != nil {
-				utils.Logger().Error().Err(err).
-					Msgf("[SYNC] ProcessStateSync failed (isBeacon: %t, ShardID: %d, otherHeight: %d, currentHeight: %d)",
-						isBeacon, bc.ShardID(), otherHeight, currentHeight)
-				// should we still call UpdateConsensusInformation() upon state sync failure?
-				// how to handle error here?
-			}
-			ss.purgeOldBlocksFromCache()
-			if consensus != nil {
-				consensus.SetMode(consensus.UpdateConsensusInformation())
-			}
+	for range ticker.C {
+		otherHeight := ss.getMaxPeerHeight(isBeacon)
+		currentHeight := bc.CurrentBlock().NumberU64()
+		if currentHeight >= otherHeight {
+			utils.Logger().Info().
+				Msgf("[SYNC] Node is now IN SYNC! (isBeacon: %t, ShardID: %d, otherHeight: %d, currentHeight: %d)",
+					isBeacon, bc.ShardID(), otherHeight, currentHeight)
+			return
+		}
+		utils.Logger().Debug().
+			Msgf("[SYNC] Node is Not in Sync (isBeacon: %t, ShardID: %d, otherHeight: %d, currentHeight: %d)",
+				isBeacon, bc.ShardID(), otherHeight, currentHeight)
+
+		startHash := bc.CurrentBlock().Hash()
+		size := uint32(otherHeight - currentHeight)
+		if size > SyncLoopBatchSize {
+			size = SyncLoopBatchSize
+		}
+		err := ss.ProcessStateSync(startHash[:], size, bc, worker)
+		if err != nil {
+			utils.Logger().Error().Err(err).
+				Msgf("[SYNC] ProcessStateSync failed (isBeacon: %t, ShardID: %d, otherHeight: %d, currentHeight: %d)",
+					isBeacon, bc.ShardID(), otherHeight, currentHeight)
+		}
+		ss.purgeOldBlocksFromCache()
+		if consensus != nil {
+			consensus.SetMode(consensus.UpdateConsensusInformation())
 		}
 	}
 	ss.purgeAllBlocksFromCache()

api/service/syncing/syncing_test.go

@@ -35,8 +35,11 @@ func TestCompareSyncPeerConfigByblockHashes(t *testing.T) {
 	assert.Equal(t, CompareSyncPeerConfigByblockHashes(syncPeerConfig1, syncPeerConfig2), 0, "syncPeerConfig1 is equal to syncPeerConfig2")
 
 	// syncPeerConfig1 is less than syncPeerConfig2
-	blockHashes1 = blockHashes1[:1]
-	assert.Equal(t, CompareSyncPeerConfigByblockHashes(syncPeerConfig1, syncPeerConfig2), 0, "syncPeerConfig1 is less than syncPeerConfig2")
+	assert.Equal(t,
+		CompareSyncPeerConfigByblockHashes(
+			syncPeerConfig1, syncPeerConfig2,
+		),
+		0, "syncPeerConfig1 is less than syncPeerConfig2")
 }
 
 func TestCreateStateSync(t *testing.T) {

appspec.yml

@@ -1,22 +0,0 @@
-version: 0.0
-os: linux
-files:
-  - source: /
-    destination: /home/ec2-user/projects/src/harmony
-hooks:
-  BeforeInstall:
-    - location: aws-scripts/say_hello.sh
-      timeout: 10
-      runas: root
-  AfterInstall:
-    - location: aws-scripts/setup.sh
-      timeout: 300
-      runas: root
-  ApplicationStart:
-    - location: aws-scripts/run_instance.sh
-      timeout: 300
-      runas: root
-  ApplicationStop:
-    - location: aws-scripts/say_bye.sh
-      timeout: 10
-      runas: root

core/tx_cacher.go

@@ -1,63 +0,0 @@
-// Copyright 2018 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package core
-
-import (
-	"github.com/ethereum/go-ethereum/core/types"
-)
-
-// txSenderCacherRequest is a request for recovering transaction senders with a
-// specific signature scheme and caching it into the transactions themselves.
-//
-// The inc field defines the number of transactions to skip after each recovery,
-// which is used to feed the same underlying input array to different threads but
-// ensure they process the early transactions fast.
-type txSenderCacherRequest struct {
-	signer types.Signer
-	txs    []*types.Transaction
-	inc    int
-}
-
-// txSenderCacher is a helper structure to concurrently ecrecover transaction
-// senders from digital signatures on background threads.
-type txSenderCacher struct {
-	threads int
-	tasks   chan *txSenderCacherRequest
-}
-
-// newTxSenderCacher creates a new transaction sender background cacher and starts
-// as many processing goroutines as allowed by the GOMAXPROCS on construction.
-func newTxSenderCacher(threads int) *txSenderCacher {
-	cacher := &txSenderCacher{
-		tasks:   make(chan *txSenderCacherRequest, threads),
-		threads: threads,
-	}
-	for i := 0; i < threads; i++ {
-		go cacher.cache()
-	}
-	return cacher
-}
-
-// cache is an infinite loop, caching transaction senders from various forms of
-// data structures.
-func (cacher *txSenderCacher) cache() {
-	for task := range cacher.tasks {
-		for i := 0; i < len(task.txs); i += task.inc {
-			types.Sender(task.signer, task.txs[i])
-		}
-	}
-}

node/service_setup.go

@@ -18,7 +18,7 @@ import (
 func (node *Node) setupForValidator() {
 	nodeConfig, chanPeer := node.initNodeConfiguration()
 
-	// Register peer discovery service. No need to do staking for beacon chain node.
+	// Register peer discovery service
 	node.serviceManager.RegisterService(
 		service.PeerDiscovery,
 		discovery.New(node.host, nodeConfig, chanPeer, node.AddBeaconPeer),