.golangci.yml

@@ -3,3 +3,20 @@ run:
   deadline: 5m
   issues-exit-code: 1
   tests: true
+
+linters:
+  enable:
+    - staticcheck
+    - unused
+    - gosimple
+    - govet
+    - goimports
+    - prealloc
+    - unconvert
+    - nakedret
+
+linters-settings:
+  govet:
+    check-all: true
+    enable:
+      - fieldalignment

event.go

@@ -8,11 +8,14 @@ import (
 )
 
 type event struct {
-	ctx   context.Context
-	topic string
-	err   error
-	sync.RWMutex
 	msg *broker.Message
+	err error
+
+	topic string
+
+	ctx   context.Context
+
+	sync.RWMutex
 	ack bool
 }
 

kgo.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"math/rand"
+	"math/rand/v2"
 	"net/http"
 	"strings"
 	"sync"
@@ -29,7 +29,6 @@ var ErrLostMessage = errors.New("message not marked for offsets commit and will
 
 var DefaultRetryBackoffFn = func() func(int) time.Duration {
 	var rngMu sync.Mutex
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
 	return func(fails int) time.Duration {
 		const (
 			min = 100 * time.Millisecond
@@ -45,7 +44,7 @@ var DefaultRetryBackoffFn = func() func(int) time.Duration {
 		backoff := min * time.Duration(1<<(fails-1))
 
 		rngMu.Lock()
-		jitter := 0.8 + 0.4*rng.Float64()
+		jitter := 0.8 + 0.4*rand.Float64()
 		rngMu.Unlock()
 
 		backoff = time.Duration(float64(backoff) * jitter)
@@ -58,13 +57,16 @@ var DefaultRetryBackoffFn = func() func(int) time.Duration {
 }()
 
 type Broker struct {
-	init      bool
+	c *kgo.Client
-	c         *kgo.Client
-	kopts     []kgo.Opt
 	connected *atomic.Uint32
-	sync.RWMutex
+
+	kopts []kgo.Opt
+	subs  []*subscriber
+
 	opts broker.Options
-	subs []*Subscriber
+
+	sync.RWMutex
+	init      bool
 }
 
 func (r *Broker) Live() bool {
@@ -302,11 +304,11 @@ func (k *Broker) publish(ctx context.Context, msgs []*broker.Message, opts ...br
 				k.opts.Meter.Counter(semconv.PublishMessageInflight, "endpoint", rec.Topic, "topic", rec.Topic).Dec()
 				k.opts.Meter.Summary(semconv.PublishMessageLatencyMicroseconds, "endpoint", rec.Topic, "topic", rec.Topic).Update(te.Seconds())
 				k.opts.Meter.Histogram(semconv.PublishMessageDurationSeconds, "endpoint", rec.Topic, "topic", rec.Topic).Update(te.Seconds())
-				if err != nil {
+				// if err != nil {
 					k.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", rec.Topic, "topic", rec.Topic, "status", "failure").Inc()
-				} else {
+				// } else {
-					k.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", rec.Topic, "topic", rec.Topic, "status", "success").Inc()
+				k.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", rec.Topic, "topic", rec.Topic, "status", "success").Inc()
-				}
+				// }
 				promise(r, err)
 			})
 		}
@@ -322,9 +324,9 @@ func (k *Broker) publish(ctx context.Context, msgs []*broker.Message, opts ...br
 		if result.Err != nil {
 			k.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", result.Record.Topic, "topic", result.Record.Topic, "status", "failure").Inc()
 			errs = append(errs, result.Err.Error())
-		} else {
+		} //  else {
 			k.opts.Meter.Counter(semconv.PublishMessageTotal, "endpoint", result.Record.Topic, "topic", result.Record.Topic, "status", "success").Inc()
-		}
+		// }
 	}
 
 	if len(errs) > 0 {
@@ -350,7 +352,7 @@ func (k *Broker) TopicExists(ctx context.Context, topic string) error {
 	return nil
 }
 
-func (k *Broker) BatchSubscribe(ctx context.Context, topic string, handler broker.BatchHandler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
+func (k *Broker) BatchSubscribe(_ context.Context, _ string, _ broker.BatchHandler, _ ...broker.SubscribeOption) (broker.Subscriber, error) {
 	return nil, nil
 }
 

meter.go

@@ -61,7 +61,7 @@ const (
 	labelTopic   = "topic"
 )
 
-func (m *hookMeter) OnGroupManageError(err error) {
+func (m *hookMeter) OnGroupManageError(_ error) {
 	m.meter.Counter(metricBrokerGroupErrors).Inc()
 }
 

subscriber.go

@@ -22,29 +22,35 @@ type tp struct {
 }
 
 type consumer struct {
-	c         *kgo.Client
+	topic string
-	topic     string
+
-	partition int32
+	c *kgo.Client
 	htracer   *hookTracer
-	opts      broker.SubscribeOptions
+
-	kopts     broker.Options
+	handler broker.Handler
-	handler   broker.Handler
+	quit    chan struct{}
-	quit      chan struct{}
+	done    chan struct{}
-	done      chan struct{}
+	recs    chan kgo.FetchTopicPartition
-	recs      chan kgo.FetchTopicPartition
+
+	kopts broker.Options
+	opts  broker.SubscribeOptions
+
+	partition int32
 }
 
 type Subscriber struct {
-	c         *kgo.Client
-	topic     string
-	htracer   *hookTracer
-	opts      broker.SubscribeOptions
-	kopts     broker.Options
-	handler   broker.Handler
-	closed    bool
-	done      chan struct{}
 	consumers map[tp]*consumer
+	c         *kgo.Client
+	htracer   *hookTracer
+	topic     string
+
+	handler broker.Handler
+	done    chan struct{}
+	kopts   broker.Options
+	opts    broker.SubscribeOptions
+
 	sync.RWMutex
+	closed bool
 }
 
 func (s *Subscriber) Client() *kgo.Client {
@@ -63,21 +69,21 @@ func (s *Subscriber) Unsubscribe(ctx context.Context) error {
 	if s.closed {
 		return nil
 	}
-	select {
+	// select {
 	// case <-ctx.Done():
 	//	return ctx.Err()
-	default:
+	// default:
-		s.c.PauseFetchTopics(s.topic)
+	s.c.PauseFetchTopics(s.topic)
-		s.c.CloseAllowingRebalance()
+	s.c.CloseAllowingRebalance()
-		kc := make(map[string][]int32)
+	kc := make(map[string][]int32)
-		for ctp := range s.consumers {
+	for ctp := range s.consumers {
-			kc[ctp.t] = append(kc[ctp.t], ctp.p)
+		kc[ctp.t] = append(kc[ctp.t], ctp.p)
-		}
-		s.killConsumers(ctx, kc)
-		close(s.done)
-		s.closed = true
-		s.c.ResumeFetchTopics(s.topic)
 	}
+	s.killConsumers(ctx, kc)
+	close(s.done)
+	s.closed = true
+	s.c.ResumeFetchTopics(s.topic)
+	// }
 	return nil
 }
 
@@ -141,8 +147,8 @@ func (s *Subscriber) poll(ctx context.Context) {
 			})
 
 			fetches.EachPartition(func(p kgo.FetchTopicPartition) {
-				tp := tp{p.Topic, p.Partition}
+				nTp := tp{p.Topic, p.Partition}
-				s.consumers[tp].recs <- p
+				s.consumers[nTp].recs <- p
 			})
 			s.c.AllowRebalance()
 		}
@@ -155,9 +161,9 @@ func (s *Subscriber) killConsumers(ctx context.Context, lost map[string][]int32)
 
 	for topic, partitions := range lost {
 		for _, partition := range partitions {
-			tp := tp{topic, partition}
+			nTp := tp{topic, partition}
-			pc := s.consumers[tp]
+			pc := s.consumers[nTp]
-			delete(s.consumers, tp)
+			delete(s.consumers, nTp)
 			close(pc.quit)
 			if s.kopts.Logger.V(logger.DebugLevel) {
 				s.kopts.Logger.Debug(ctx, fmt.Sprintf("[kgo] waiting for work to finish topic %s partition %d", topic, partition))

tracer.go

@@ -11,9 +11,9 @@ import (
 )
 
 type hookTracer struct {
+	tracer   tracer.Tracer
 	clientID string
 	group    string
-	tracer   tracer.Tracer
 }
 
 var messagingSystem = semconv.MessagingSystemKey.String("kafka")