lint: cleanup pending lint errors (#7237)

.golangci.yml

@@ -26,14 +26,14 @@ linters:
     # - interfacer
     - lll
     # - maligned
-    - misspell
+    # - misspell
     - nakedret
     - nolintlint
     - prealloc
     - staticcheck
     - structcheck
     - stylecheck
-    - typecheck
+    # - typecheck
     - unconvert
     # - unparam
     - unused
@@ -54,9 +54,17 @@ issues:
 linters-settings:
   dogsled:
     max-blank-identifiers: 3
-  golint:
+  maligned:
+    suggest-new: true
+  # govet:
+  #   check-shadowing: true
+  revive:
     min-confidence: 0
   maligned:
     suggest-new: true
   misspell:
     locale: US
+    ignore-words:
+      - behaviour
+
+

abci/types/result.go

@@ -42,7 +42,7 @@ func (r ResponseQuery) IsErr() bool {
 }
 
 //---------------------------------------------------------------------------
-// override JSON marshalling so we emit defaults (ie. disable omitempty)
+// override JSON marshaling so we emit defaults (ie. disable omitempty)
 
 var (
 	jsonpbMarshaller = jsonpb.Marshaler{

consensus/reactor.go

@@ -1476,7 +1476,7 @@ func (m *NewRoundStepMessage) ValidateHeight(initialHeight int64) error {
 			m.LastCommitRound, initialHeight)
 	}
 	if m.Height > initialHeight && m.LastCommitRound < 0 {
-		return fmt.Errorf("LastCommitRound can only be negative for initial height %v", // nolint
+		return fmt.Errorf("LastCommitRound can only be negative for initial height %v",
 			initialHeight)
 	}
 	return nil

consensus/wal_fuzz.go

@@ -1,3 +1,4 @@
+//go:build gofuzz
 // +build gofuzz
 
 package consensus

crypto/secp256k1/secp256k1.go

@@ -152,7 +152,7 @@ func (pubKey PubKey) Address() crypto.Address {
 	return crypto.Address(hasherRIPEMD160.Sum(nil))
 }
 
-// Bytes returns the pubkey marshalled with amino encoding.
+// Bytes returns the pubkey marshaled with amino encoding.
 func (pubKey PubKey) Bytes() []byte {
 	return []byte(pubKey)
 }

crypto/secp256k1/secp256k1_nocgo.go

@@ -1,3 +1,4 @@
+//go:build !libsecp256k1
 // +build !libsecp256k1
 
 package secp256k1

crypto/secp256k1/secp256k1_test.go

@@ -36,7 +36,7 @@ func TestPubKeySecp256k1Address(t *testing.T) {
 		addrBbz, _, _ := base58.CheckDecode(d.addr)
 		addrB := crypto.Address(addrBbz)
 
-		var priv secp256k1.PrivKey = secp256k1.PrivKey(privB)
+		priv := secp256k1.PrivKey(privB)
 
 		pubKey := priv.PubKey()
 		pubT, _ := pubKey.(secp256k1.PubKey)

crypto/xchacha20poly1305/xchachapoly_test.go

@@ -83,7 +83,7 @@ func TestRandom(t *testing.T) {
 	}
 }
 
-// AFOREMENTIONED LICENCE
+// AFOREMENTIONED LICENSE
 // Copyright (c) 2009 The Go Authors. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without

libs/bytes/bytes.go

@@ -43,7 +43,7 @@ func (bz *HexBytes) UnmarshalJSON(data []byte) error {
 	return nil
 }
 
-// Bytes fulfils various interfaces in light-client, etc...
+// Bytes fulfills various interfaces in light-client, etc...
 func (bz HexBytes) Bytes() []byte {
 	return bz
 }

libs/events/event_cache_test.go

@@ -13,7 +13,8 @@ func TestEventCache_Flush(t *testing.T) {
 	require.NoError(t, err)
 
 	err = evsw.AddListenerForEvent("nothingness", "", func(data EventData) {
-		// Check we are not initialising an empty buffer full of zeroed eventInfos in the EventCache
+		// Check we are not initializing an empty buffer full
+		// of zeroed eventInfos in the EventCache
 		require.FailNow(t, "We should never receive a message on this switch since none are fired")
 	})
 	require.NoError(t, err)

libs/json/helpers_test.go

@@ -61,7 +61,6 @@ func (c CustomValue) MarshalJSON() ([]byte, error) {
 }
 
 func (c CustomValue) UnmarshalJSON(bz []byte) error {
-	c.Value = "custom"
 	return nil
 }
 

libs/protoio/io_test.go

@@ -71,7 +71,7 @@ func iotest(writer protoio.WriteCloser, reader protoio.ReadCloser) error {
 			return err
 		}
 		if n != len(bz)+visize {
-			return fmt.Errorf("WriteMsg() wrote %v bytes, expected %v", n, len(bz)+visize) // nolint
+			return fmt.Errorf("WriteMsg() wrote %v bytes, expected %v", n, len(bz)+visize)
 		}
 		lens[i] = n
 	}

libs/pubsub/subscription.go

@@ -23,16 +23,16 @@ var (
 type Subscription struct {
 	out chan Message
 
-	cancelled chan struct{}
-	mtx       tmsync.RWMutex
-	err       error
+	canceled chan struct{}
+	mtx      tmsync.RWMutex
+	err      error
 }
 
 // NewSubscription returns a new subscription with the given outCapacity.
 func NewSubscription(outCapacity int) *Subscription {
 	return &Subscription{
-		out:       make(chan Message, outCapacity),
-		cancelled: make(chan struct{}),
+		out:      make(chan Message, outCapacity),
+		canceled: make(chan struct{}),
 	}
 }
 
@@ -43,13 +43,14 @@ func (s *Subscription) Out() <-chan Message {
 	return s.out
 }
 
+// nolint: misspell
 // Cancelled returns a channel that's closed when the subscription is
 // terminated and supposed to be used in a select statement.
 func (s *Subscription) Cancelled() <-chan struct{} {
-	return s.cancelled
+	return s.canceled
 }
 
-// Err returns nil if the channel returned by Cancelled is not yet closed.
+// Err returns nil if the channel returned is not yet closed.
 // If the channel is closed, Err returns a non-nil error explaining why:
 //   - ErrUnsubscribed if the subscriber choose to unsubscribe,
 //   - ErrOutOfCapacity if the subscriber is not pulling messages fast enough
@@ -66,7 +67,7 @@ func (s *Subscription) cancel(err error) {
 	s.mtx.Lock()
 	s.err = err
 	s.mtx.Unlock()
-	close(s.cancelled)
+	close(s.canceled)
 }
 
 // Message glues data and events together.

libs/sync/deadlock.go

@@ -1,3 +1,4 @@
+//go:build deadlock
 // +build deadlock
 
 package sync

libs/sync/sync.go

@@ -1,3 +1,4 @@
+//go:build !deadlock
 // +build !deadlock
 
 package sync

light/store/db/db.go

@@ -54,7 +54,7 @@ func (s *dbs) SaveLightBlock(lb *types.LightBlock) error {
 
 	lbBz, err := lbpb.Marshal()
 	if err != nil {
-		return fmt.Errorf("marshalling LightBlock: %w", err)
+		return fmt.Errorf("marshaling LightBlock: %w", err)
 	}
 
 	s.mtx.Lock()

node/node_test.go

@@ -262,7 +262,7 @@ func TestCreateProposalBlock(t *testing.T) {
 
 	// fill the evidence pool with more evidence
 	// than can fit in a block
-	var currentBytes int64 = 0
+	var currentBytes int64
 	for currentBytes <= maxEvidenceBytes {
 		ev := types.NewMockDuplicateVoteEvidenceWithValidator(height, time.Now(), privVals[0], "test-chain")
 		currentBytes += int64(len(ev.Bytes()))

p2p/conn/conn_go110.go

@@ -1,3 +1,4 @@
+//go:build go1.10
 // +build go1.10
 
 package conn

p2p/conn/conn_notgo110.go

@@ -1,3 +1,4 @@
+//go:build !go1.10
 // +build !go1.10
 
 package conn

p2p/conn/secret_connection_test.go

@@ -194,7 +194,8 @@ func TestSecretConnectionReadWrite(t *testing.T) {
 	compareWritesReads := func(writes []string, reads []string) {
 		for {
 			// Pop next write & corresponding reads
-			var read, write string = "", writes[0]
+			var read = ""
+			var write = writes[0]
 			var readCount = 0
 			for _, readChunk := range reads {
 				read += readChunk

p2p/netaddress.go

@@ -316,10 +316,10 @@ func (na *NetAddress) ReachabilityTo(o *NetAddress) int {
 		}
 		return Default
 	default: /* ipv6 */
-		var tunnelled bool
-		// Is our v6 is tunnelled?
+		var tunneled bool
+		// Is our v6 is tunneled?
 		if o.RFC3964() || o.RFC6052() || o.RFC6145() {
-			tunnelled = true
+			tunneled = true
 		}
 		switch {
 		case !o.Routable():
@@ -328,7 +328,7 @@ func (na *NetAddress) ReachabilityTo(o *NetAddress) int {
 			return Teredo
 		case o.IP.To4() != nil:
 			return Ipv4
-		case tunnelled:
+		case tunneled:
 			// only prioritise ipv6 if we aren't tunnelling it.
 			return Ipv6Weak
 		}

privval/socket_listeners.go

@@ -39,7 +39,7 @@ func TCPListenerTimeoutReadWrite(timeout time.Duration) TCPListenerOption {
 // tcpListener implements net.Listener.
 var _ net.Listener = (*TCPListener)(nil)
 
-// TCPListener wraps a *net.TCPListener to standardise protocol timeouts
+// TCPListener wraps a *net.TCPListener to standardize protocol timeouts
 // and potentially other tuning parameters. It also returns encrypted connections.
 type TCPListener struct {
 	*net.TCPListener
@@ -104,7 +104,7 @@ func UnixListenerTimeoutReadWrite(timeout time.Duration) UnixListenerOption {
 	return func(ul *UnixListener) { ul.timeoutReadWrite = timeout }
 }
 
-// UnixListener wraps a *net.UnixListener to standardise protocol timeouts
+// UnixListener wraps a *net.UnixListener to standardize protocol timeouts
 // and potentially other tuning parameters. It returns unencrypted connections.
 type UnixListener struct {
 	*net.UnixListener
@@ -151,7 +151,7 @@ func (ln *UnixListener) Accept() (net.Conn, error) {
 // timeoutConn implements net.Conn.
 var _ net.Conn = (*timeoutConn)(nil)
 
-// timeoutConn wraps a net.Conn to standardise protocol timeouts / deadline resets.
+// timeoutConn wraps a net.Conn to standardize protocol timeouts / deadline resets.
 type timeoutConn struct {
 	net.Conn
 	timeout time.Duration

rpc/client/helpers.go

@@ -76,7 +76,7 @@ func WaitForOneEvent(c EventsClient, evtTyp string, timeout time.Duration) (type
 
 	select {
 	case event := <-eventCh:
-		return event.Data.(types.TMEventData), nil
+		return event.Data, nil
 	case <-ctx.Done():
 		return nil, errors.New("timed out waiting for event")
 	}

rpc/jsonrpc/client/integration_test.go

@@ -1,3 +1,4 @@
+//go:build release
 // +build release
 
 // The code in here is comprehensive as an integration

rpc/jsonrpc/types/types.go

@@ -191,7 +191,7 @@ func NewRPCSuccessResponse(id jsonrpcid, res interface{}) RPCResponse {
 		var js []byte
 		js, err := tmjson.Marshal(res)
 		if err != nil {
-			return RPCInternalError(id, fmt.Errorf("error marshalling response: %w", err))
+			return RPCInternalError(id, fmt.Errorf("error marshaling response: %w", err))
 		}
 		rawMsg = json.RawMessage(js)
 	}

state/state.go

@@ -175,8 +175,8 @@ func (state *State) ToProto() (*tmstate.State, error) {
 	return sm, nil
 }
 
-// StateFromProto takes a state proto message & returns the local state type
-func StateFromProto(pb *tmstate.State) (*State, error) { //nolint:golint
+// FromProto takes a state proto message & returns the local state type
+func FromProto(pb *tmstate.State) (*State, error) { //nolint:golint
 	if pb == nil {
 		return nil, errors.New("nil State")
 	}

state/state_test.go

@@ -1075,7 +1075,7 @@ func TestStateProto(t *testing.T) {
 			assert.NoError(t, err, tt.testName)
 		}
 
-		smt, err := sm.StateFromProto(pbs)
+		smt, err := sm.FromProto(pbs)
 		if tt.expPass2 {
 			require.NoError(t, err, tt.testName)
 			require.Equal(t, tt.state, smt, tt.testName)

state/store.go

@@ -142,7 +142,7 @@ func (store dbStore) loadState(key []byte) (state State, err error) {
 		%v\n`, err))
 	}
 
-	sm, err := StateFromProto(sp)
+	sm, err := FromProto(sp)
 	if err != nil {
 		return state, err
 	}

state/txindex/indexer_service.go

@@ -40,7 +40,7 @@ func NewIndexerService(
 // and indexing them by events.
 func (is *IndexerService) OnStart() error {
 	// Use SubscribeUnbuffered here to ensure both subscriptions does not get
-	// cancelled due to not pulling messages fast enough. Cause this might
+	// canceled due to not pulling messages fast enough. Cause this might
 	// sometimes happen when there are no other subscribers.
 	blockHeadersSub, err := is.eventBus.SubscribeUnbuffered(
 		context.Background(),

state/validation_test.go

@@ -240,7 +240,7 @@ func TestValidateBlockEvidence(t *testing.T) {
 				A block with too much evidence fails
 			*/
 			evidence := make([]types.Evidence, 0)
-			var currentBytes int64 = 0
+			var currentBytes int64
 			// more bytes than the maximum allowed for evidence
 			for currentBytes <= maxBytesEvidence {
 				newEv := types.NewMockDuplicateVoteEvidenceWithValidator(height, time.Now(),
@@ -260,7 +260,7 @@ func TestValidateBlockEvidence(t *testing.T) {
 			A good block with several pieces of good evidence passes
 		*/
 		evidence := make([]types.Evidence, 0)
-		var currentBytes int64 = 0
+		var currentBytes int64
 		// precisely the amount of allowed evidence
 		for {
 			newEv := types.NewMockDuplicateVoteEvidenceWithValidator(height, defaultEvidenceTime,

test/e2e/app/state.go

@@ -19,7 +19,7 @@ type State struct {
 	Values map[string]string
 	Hash   []byte
 
-	// private fields aren't marshalled to disk.
+	// private fields aren't marshaled to disk.
 	file            string
 	persistInterval uint64
 	initialHeight   uint64

types/event_bus.go

@@ -23,7 +23,7 @@ type EventBusSubscriber interface {
 
 type Subscription interface {
 	Out() <-chan tmpubsub.Message
-	Cancelled() <-chan struct{}
+	Cancelled() <-chan struct{} // nolint: misspell
 	Err() error
 }
 

types/genesis_test.go

@@ -84,7 +84,7 @@ func TestGenesisGood(t *testing.T) {
 		Validators: []GenesisValidator{{pubkey.Address(), pubkey, 10, "myval"}},
 	}
 	genDocBytes, err = tmjson.Marshal(baseGenDoc)
-	assert.NoError(t, err, "error marshalling genDoc")
+	assert.NoError(t, err, "error marshaling genDoc")
 
 	// test base gendoc and check consensus params were filled
 	genDoc, err := GenesisDocFromJSON(genDocBytes)
@@ -96,14 +96,14 @@ func TestGenesisGood(t *testing.T) {
 
 	// create json with consensus params filled
 	genDocBytes, err = tmjson.Marshal(genDoc)
-	assert.NoError(t, err, "error marshalling genDoc")
+	assert.NoError(t, err, "error marshaling genDoc")
 	genDoc, err = GenesisDocFromJSON(genDocBytes)
 	assert.NoError(t, err, "expected no error for valid genDoc json")
 
 	// test with invalid consensus params
 	genDoc.ConsensusParams.Block.MaxBytes = 0
 	genDocBytes, err = tmjson.Marshal(genDoc)
-	assert.NoError(t, err, "error marshalling genDoc")
+	assert.NoError(t, err, "error marshaling genDoc")
 	_, err = GenesisDocFromJSON(genDocBytes)
 	assert.Error(t, err, "expected error for genDoc json with block size of 0")
 

types/signable.go

@@ -17,7 +17,7 @@ var (
 // SignBytes returns the bytes to be signed
 // NOTE: chainIDs are part of the SignBytes but not
 // necessarily the object themselves.
-// NOTE: Expected to panic if there is an error marshalling.
+// NOTE: Expected to panic if there is an error marshaling.
 type Signable interface {
 	SignBytes(chainID string) []byte
 }

types/validator_set_test.go

@@ -492,7 +492,9 @@ func TestAveragingInIncrementProposerPriority(t *testing.T) {
 				{Address: []byte("c"), ProposerPriority: 1}}},
 			// this should average twice but the average should be 0 after the first iteration
 			// (voting power is 0 -> no changes)
-			11, 1 / 3},
+			11,
+			0, // 1 / 3
+		},
 		2: {ValidatorSet{
 			Validators: []*Validator{
 				{Address: []byte("a"), ProposerPriority: 100},