Fix lint issues that cause GitHub actions to fail

.golangci.yml

@@ -9,8 +9,14 @@ linters-settings:
   gocyclo:
     min-complexity: 15
 
+  misspell:
+    locale: US
+
   revive:
-    min-confidence: 0.21 # disables package comment warning
+    rules:
+      - name: unexported-return
+        disabled: true
+      - name: unused-parameter
 
 issues:
   exclude-use-default: false

.vscode/dict.txt

@@ -2,6 +2,8 @@ anypb
 Bano
 Baudet
 BFT's
+Bitfield
+cerr
 chainedhotstuff
 checkf
 Chursin
@@ -12,10 +14,12 @@ CODECOV
 covermode
 coverpkg
 coverprofile
+cpuprofile
 Debugf
 durationpb
 emptypb
 Erevik
+eventloop
 Fangyu
 fasthotstuff
 felixge
@@ -28,32 +32,40 @@ golangci
 golint
 gomock
 gorums
+gpool
 grpc
 Gueta
 Hein
 hostnames
 HOTSTUFF
 hotstuffgorums
 hotstuffpb
+iagotest
 ICDCS
 iface
 Infof
 Jalalzai
 Jehl
 Jianyu
+keygen
 kilic
 latencygen
+leaderrotation
 Malkhi
 Mathieu
 Meling
+memprofile
 mitchellh
+mockgen
 nolint
 orchestrationpb
 partitioner
 Paulo
 perr
 pflag
 pflags
+pkgs
+PRECOMMIT
 Println
 propsed
 proto
@@ -71,11 +83,14 @@ simplehotstuff
 Sonnino
 SSWU
 structs
+subconfiguration
+testutil
 throughputvslatency
 timestamppb
 TMPDIR
 tmpl
 Tormod
+unexported
 unittests
 unmarshals
 unregisters

backend/config.go

@@ -301,7 +301,7 @@ func (cfg *subConfig) Timeout(msg hotstuff.TimeoutMsg) {
 		return
 	}
 
-	// will wait until the second timeout before cancelling
+	// will wait until the second timeout before canceling
 	ctx, cancel := synchronizer.TimeoutContext(cfg.eventLoop.Context(), cfg.eventLoop)
 	defer cancel()
 

blockchain/blockchain.go

@@ -24,7 +24,7 @@ type blockChain struct {
 	pruneHeight   hotstuff.View
 	blocks        map[hotstuff.Hash]*hotstuff.Block
 	blockAtHeight map[hotstuff.View]*hotstuff.Block
-	pendingFetch  map[hotstuff.Hash]context.CancelFunc // allows a pending fetch operation to be cancelled
+	pendingFetch  map[hotstuff.Hash]context.CancelFunc // allows a pending fetch operation to be canceled
 }
 
 func (chain *blockChain) InitModule(mods *modules.Core) {

consensus/consensus_test.go

@@ -34,7 +34,7 @@ func TestVote(t *testing.T) {
 
 	ok := false
 	ctx, cancel := context.WithCancel(context.Background())
-	eventLoop.RegisterObserver(hotstuff.NewViewMsg{}, func(event any) {
+	eventLoop.RegisterObserver(hotstuff.NewViewMsg{}, func(_ any) {
 		ok = true
 		cancel()
 	})

crypto/bitfield.go

@@ -47,7 +47,7 @@ func BitfieldFromBytes(b []byte) Bitfield {
 		len:  0,
 	}
 	l := 0
-	bf.ForEach(func(i hotstuff.ID) {
+	bf.ForEach(func(_ hotstuff.ID) {
 		l++
 	})
 	bf.len = l

crypto/bitfield_test.go

@@ -63,7 +63,7 @@ func TestBitfieldForEach(t *testing.T) {
 
 	// first check that the bitfield is empty
 	count := 0
-	bm.ForEach(func(i hotstuff.ID) {
+	bm.ForEach(func(_ hotstuff.ID) {
 		count++
 	})
 

crypto/keygen/keygen.go

@@ -90,24 +90,24 @@ func GenerateTLSCert(id hotstuff.ID, hosts []string, parent *x509.Certificate, s
 // PrivateKeyToPEM encodes the private key in PEM format.
 func PrivateKeyToPEM(key hotstuff.PrivateKey) ([]byte, error) {
 	var (
-		marshalled []byte
-		keyType    string
-		err        error
+		marshaled []byte
+		keyType   string
+		err       error
 	)
 	switch k := key.(type) {
 	case *ecdsa.PrivateKey:
-		marshalled, err = x509.MarshalECPrivateKey(k)
+		marshaled, err = x509.MarshalECPrivateKey(k)
 		if err != nil {
 			return nil, err
 		}
 		keyType = ecdsacrypto.PrivateKeyFileType
 	case *bls12.PrivateKey:
-		marshalled = k.ToBytes()
+		marshaled = k.ToBytes()
 		keyType = bls12.PrivateKeyFileType
 	}
 	b := &pem.Block{
 		Type:  keyType,
-		Bytes: marshalled,
+		Bytes: marshaled,
 	}
 	return pem.EncodeToMemory(b), nil
 }
@@ -136,25 +136,25 @@ func WritePrivateKeyFile(key hotstuff.PrivateKey, filePath string) (err error) {
 // PublicKeyToPEM encodes the public key in PEM format.
 func PublicKeyToPEM(key hotstuff.PublicKey) ([]byte, error) {
 	var (
-		marshalled []byte
-		keyType    string
-		err        error
+		marshaled []byte
+		keyType   string
+		err       error
 	)
 	switch k := key.(type) {
 	case *ecdsa.PublicKey:
-		marshalled, err = x509.MarshalPKIXPublicKey(k)
+		marshaled, err = x509.MarshalPKIXPublicKey(k)
 		if err != nil {
 			return nil, err
 		}
 		keyType = ecdsacrypto.PublicKeyFileType
 	case *bls12.PublicKey:
-		marshalled = k.ToBytes()
+		marshaled = k.ToBytes()
 		keyType = bls12.PublicKeyFileType
 	}
 
 	b := &pem.Block{
 		Type:  keyType,
-		Bytes: marshalled,
+		Bytes: marshaled,
 	}
 
 	return pem.EncodeToMemory(b), nil

eventloop/eventloop.go

@@ -187,7 +187,7 @@ loop:
 		el.processEvent(event, false)
 	}
 
-	// HACK: when we get cancelled, we will handle the events that were in the queue at that time before quitting.
+	// HACK: when we get canceled, we will handle the events that were in the queue at that time before quitting.
 	l := el.eventQ.len()
 	for i := 0; i < l; i++ {
 		event, _ := el.eventQ.pop()

eventloop/eventloop_test.go

@@ -107,7 +107,7 @@ func TestTicker(t *testing.T) {
 	go el.Run(ctx)
 
 	rate := 100 * time.Millisecond
-	id := el.AddTicker(rate, func(tick time.Time) (event any) { return testEvent(1) })
+	id := el.AddTicker(rate, func(_ time.Time) (_ any) { return testEvent(1) })
 
 	// sleep a little less than 1 second to ensure we get the expected amount of ticks
 	time.Sleep(time.Second - rate/4)

internal/cli/root.go

@@ -30,7 +30,7 @@ run the experiment, and fetch the experiment results.
 To run an experiment, use the 'hotstuff run' command.
 By default, this command will run a small configuration of replicas locally.
 use 'hotstuff help run' to view all possible parameters for this command.`,
-		RunE: func(cmd *cobra.Command, args []string) error {
+		RunE: func(cmd *cobra.Command, _ []string) error {
 			if !listModules {
 				return cmd.Usage()
 			}

internal/cli/run.go

@@ -38,7 +38,7 @@ It is also required that the host keys for all remote machines are present in a
 Then, you must use the '--ssh-config' parameter to specify the location of your 'ssh_config' file
 (or omit it to use ~/.ssh/config). Then, you must specify the list of remote machines to connect to
 using the '--host' parameter. This should be a comma separated list of hostnames or ip addresses.`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(_ *cobra.Command, _ []string) {
 		runController()
 	},
 }

internal/cli/worker.go

@@ -31,7 +31,7 @@ var workerCmd = &cobra.Command{
 	Short:  "Run a worker.",
 	Long: `Starts a worker that reads commands from stdin and writes responses to stdout.
 This is only intended to be used by a controller (hotstuff run).`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(_ *cobra.Command, _ []string) {
 		runWorker()
 	},
 }

internal/orchestration/deploy.go

@@ -57,18 +57,16 @@
 	}
 
 	g.Run("Create temporary directory",
-		func(ctx context.Context, host iago.Host) (err error) {
+		func(_ context.Context, host iago.Host) error {
 			tmpDir := "hotstuff." + randString(8)
 			testDir := strings.TrimPrefix(tempDirPath(host, tmpDir), "/")
 			dataDir := testDir + "/data"
 			host.SetVar("test-dir", testDir)
 			host.SetVar("data-dir", dataDir)
-			err = fs.MkdirAll(host.GetFS(), dataDir, 0o755)
-			return err
+			return fs.MkdirAll(host.GetFS(), dataDir, 0o755)
 		})
 
-	g.Run(
-		"Upload hotstuff binary",
+	g.Run("Upload hotstuff binary",
 		func(ctx context.Context, host iago.Host) (err error) {
 			dest, err := iago.NewPath("/", iago.GetStringVar(host, "test-dir")+"/hotstuff")
 			if err != nil {
@@ -122,9 +120,8 @@
 	}
 
 	g.Run("Remove test directory",
-		func(ctx context.Context, host iago.Host) (err error) {
-			err = fs.RemoveAll(host.GetFS(), iago.GetStringVar(host, "test-dir"))
-			return err
+		func(_ context.Context, host iago.Host) error {
+			return fs.RemoveAll(host.GetFS(), iago.GetStringVar(host, "test-dir"))
 		})
 
 	return nil

internal/orchestration/orchestration_test.go

@@ -23,7 +23,8 @@ import (
 )
 
 func TestOrchestration(t *testing.T) {
-	run := func(consensusImpl string, crypto string, mods []string, byzantine string) {
+	run := func(t *testing.T, consensusImpl string, crypto string, mods []string, byzantine string) {
+		t.Helper()
 		controllerStream, workerStream := net.Pipe()
 
 		workerProxy := orchestration.NewRemoteWorker(protostream.NewWriter(controllerStream), protostream.NewReader(controllerStream))
@@ -72,25 +73,25 @@ func TestOrchestration(t *testing.T) {
 		}
 	}
 
-	t.Run("ChainedHotStuff+ECDSA", func(t *testing.T) { run("chainedhotstuff", "ecdsa", nil, "") })
-	t.Run("ChainedHotStuff+BLS12", func(t *testing.T) { run("chainedhotstuff", "bls12", nil, "") })
-	t.Run("Fast-HotStuff+ECDSA", func(t *testing.T) { run("fasthotstuff", "ecdsa", nil, "") })
-	t.Run("Fast-HotStuff+BLS12", func(t *testing.T) { run("fasthotstuff", "bls12", nil, "") })
-	t.Run("Simple-HotStuff+ECDSA", func(t *testing.T) { run("simplehotstuff", "ecdsa", nil, "") })
-	t.Run("Simple-HotStuff+BLS12", func(t *testing.T) { run("simplehotstuff", "bls12", nil, "") })
+	t.Run("ChainedHotStuff+ECDSA", func(t *testing.T) { run(t, "chainedhotstuff", "ecdsa", nil, "") })
+	t.Run("ChainedHotStuff+BLS12", func(t *testing.T) { run(t, "chainedhotstuff", "bls12", nil, "") })
+	t.Run("Fast-HotStuff+ECDSA", func(t *testing.T) { run(t, "fasthotstuff", "ecdsa", nil, "") })
+	t.Run("Fast-HotStuff+BLS12", func(t *testing.T) { run(t, "fasthotstuff", "bls12", nil, "") })
+	t.Run("Simple-HotStuff+ECDSA", func(t *testing.T) { run(t, "simplehotstuff", "ecdsa", nil, "") })
+	t.Run("Simple-HotStuff+BLS12", func(t *testing.T) { run(t, "simplehotstuff", "bls12", nil, "") })
 
 	// handel
 	mods := []string{"handel"}
-	t.Run("ChainedHotStuff+ECDSA+Handel", func(t *testing.T) { run("chainedhotstuff", "ecdsa", mods, "") })
-	t.Run("ChainedHotStuff+BLS12+Handel", func(t *testing.T) { run("chainedhotstuff", "bls12", mods, "") })
-	t.Run("Fast-HotStuff+ECDSA+Handel", func(t *testing.T) { run("fasthotstuff", "ecdsa", mods, "") })
-	t.Run("Fast-HotStuff+BLS12+Handel", func(t *testing.T) { run("fasthotstuff", "bls12", mods, "") })
-	t.Run("Simple-HotStuff+ECDSA+Handel", func(t *testing.T) { run("simplehotstuff", "ecdsa", mods, "") })
-	t.Run("Simple-HotStuff+BLS12+Handel", func(t *testing.T) { run("simplehotstuff", "bls12", mods, "") })
+	t.Run("ChainedHotStuff+ECDSA+Handel", func(t *testing.T) { run(t, "chainedhotstuff", "ecdsa", mods, "") })
+	t.Run("ChainedHotStuff+BLS12+Handel", func(t *testing.T) { run(t, "chainedhotstuff", "bls12", mods, "") })
+	t.Run("Fast-HotStuff+ECDSA+Handel", func(t *testing.T) { run(t, "fasthotstuff", "ecdsa", mods, "") })
+	t.Run("Fast-HotStuff+BLS12+Handel", func(t *testing.T) { run(t, "fasthotstuff", "bls12", mods, "") })
+	t.Run("Simple-HotStuff+ECDSA+Handel", func(t *testing.T) { run(t, "simplehotstuff", "ecdsa", mods, "") })
+	t.Run("Simple-HotStuff+BLS12+Handel", func(t *testing.T) { run(t, "simplehotstuff", "bls12", mods, "") })
 
 	// byzantine
-	t.Run("ChainedHotStuff+Fork", func(t *testing.T) { run("chainedhotstuff", "ecdsa", nil, "fork:1") })
-	t.Run("ChainedHotStuff+Silence", func(t *testing.T) { run("chainedhotstuff", "ecdsa", nil, "silence:1") })
+	t.Run("ChainedHotStuff+Fork", func(t *testing.T) { run(t, "chainedhotstuff", "ecdsa", nil, "fork:1") })
+	t.Run("ChainedHotStuff+Silence", func(t *testing.T) { run(t, "chainedhotstuff", "ecdsa", nil, "silence:1") })
 }
 
 func TestDeployment(t *testing.T) {
@@ -144,8 +145,7 @@ func TestDeployment(t *testing.T) {
 			wg.Done()
 		}(session)
 	}
-	err = experiment.Run()
-	if err != nil {
+	if err = experiment.Run(); err != nil {
 		t.Fatal(err)
 	}
 	wg.Wait()

modules/modules.go

@@ -13,7 +13,7 @@ import (
 // CommandQueue is a queue of commands to be proposed.
 type CommandQueue interface {
 	// Get returns the next command to be proposed.
-	// It may run until the context is cancelled.
+	// It may run until the context is canceled.
 	// If no command is available, the 'ok' return value should be false.
 	Get(ctx context.Context) (cmd hotstuff.Command, ok bool)
 }

replica/replica.go

@@ -151,7 +151,7 @@ func (srv *Replica) Stop() {
 	srv.Close()
 }
 
-// Run runs the replica until the context is cancelled.
+// Run runs the replica until the context is canceled.
 func (srv *Replica) Run(ctx context.Context) {
 	var (
 		synchronizer modules.Synchronizer

synchronizer/context.go

@@ -9,8 +9,8 @@ import (
 
 // This file provides several functions for creating contexts with lifespans that are tied to synchronizer events.
 
-// ViewContext returns a context that is cancelled at the end of view.
-// If view is nil or less than or equal to the current view, the context will be cancelled at the next view change.
+// ViewContext returns a context that is canceled at the end of view.
+// If view is nil or less than or equal to the current view, the context will be canceled at the next view change.
 func ViewContext(parent context.Context, eventLoop *eventloop.EventLoop, view *hotstuff.View) (context.Context, context.CancelFunc) {
 	ctx, cancel := context.WithCancel(parent)
 
@@ -26,12 +26,12 @@ func ViewContext(parent context.Context, eventLoop *eventloop.EventLoop, view *h
 	}
 }
 
-// TimeoutContext returns a context that is cancelled either when a timeout occurs, or when the view changes.
+// TimeoutContext returns a context that is canceled either when a timeout occurs, or when the view changes.
 func TimeoutContext(parent context.Context, eventLoop *eventloop.EventLoop) (context.Context, context.CancelFunc) {
 	// ViewContext handles view-change case.
 	ctx, cancel := ViewContext(parent, eventLoop, nil)
 
-	id := eventLoop.RegisterHandler(TimeoutEvent{}, func(event any) {
+	id := eventLoop.RegisterHandler(TimeoutEvent{}, func(_ any) {
 		cancel()
 	}, eventloop.Prioritize(), eventloop.UnsafeRunInAddEvent())