Update to the latest golangci-lint

internal/cli/access.go

@@ -61,7 +61,7 @@ func (a *Access) Run(cli *CLI, version string) error {
 	}
 
 	wg := &sync.WaitGroup{}
-	wg.Add(2) //nolint: gomnd
+	wg.Add(2)
 
 	go func() {
 		defer wg.Done()
@@ -129,7 +129,7 @@ func (a *Access) getIP(ntw mtglib.Network, protocol string) net.IP {
 
 	defer func() {
 		io.Copy(io.Discard, resp.Body) //nolint: errcheck
-		resp.Body.Close()
+		resp.Body.Close() //nolint: errcheck
 	}()
 
 	data, err := io.ReadAll(resp.Body)

internal/cli/run_proxy.go

@@ -164,7 +164,7 @@ func makeIPAllowlist(conf config.ListConfig,
 }
 
 func makeEventStream(conf *config.Config, logger mtglib.Logger) (mtglib.EventStream, error) {
-	factories := make([]events.ObserverFactory, 0, 2) //nolint: gomnd
+	factories := make([]events.ObserverFactory, 0, 2)
 
 	if conf.Stats.StatsD.Enabled.Get(false) {
 		statsdFactory, err := stats.NewStatsd(
@@ -271,7 +271,7 @@ func runProxy(conf *config.Config, version string) error { //nolint: funlen
 	go proxy.Serve(listener) //nolint: errcheck
 
 	<-ctx.Done()
-	listener.Close()
+	listener.Close() //nolint: errcheck
 	proxy.Shutdown()
 
 	return nil

internal/cli/simple_run.go

@@ -35,7 +35,7 @@ func (s *SimpleRun) Run(cli *CLI, version string) error { //nolint: cyclop,funle
 		return fmt.Errorf("incorrect secret: %w", err)
 	}
 
-	if err := conf.Concurrency.Set(strconv.FormatUint(s.Concurrency, 10)); err != nil { //nolint: gomnd
+	if err := conf.Concurrency.Set(strconv.FormatUint(s.Concurrency, 10)); err != nil {
 		return fmt.Errorf("incorrect concurrency: %w", err)
 	}
 
@@ -43,7 +43,7 @@ func (s *SimpleRun) Run(cli *CLI, version string) error { //nolint: cyclop,funle
 		return fmt.Errorf("incorrect prefer-ip: %w", err)
 	}
 
-	if err := conf.DomainFrontingPort.Set(strconv.FormatUint(s.DomainFrontingPort, 10)); err != nil { //nolint: gomnd
+	if err := conf.DomainFrontingPort.Set(strconv.FormatUint(s.DomainFrontingPort, 10)); err != nil {
 		return fmt.Errorf("incorrect domain-fronting-port: %w", err)
 	}
 

internal/config/type_concurrency.go

@@ -10,7 +10,7 @@ type TypeConcurrency struct {
 }
 
 func (t *TypeConcurrency) Set(value string) error {
-	concurrencyValue, err := strconv.ParseUint(value, 10, 16) //nolint: gomnd
+	concurrencyValue, err := strconv.ParseUint(value, 10, 16)
 	if err != nil {
 		return fmt.Errorf("value is not uint (%s): %w", value, err)
 	}
@@ -41,5 +41,5 @@ func (t TypeConcurrency) MarshalJSON() ([]byte, error) {
 }
 
 func (t TypeConcurrency) String() string {
-	return strconv.FormatUint(uint64(t.Value), 10) //nolint: gomnd
+	return strconv.FormatUint(uint64(t.Value), 10)
 }

internal/config/type_error_rate.go

@@ -12,7 +12,7 @@ type TypeErrorRate struct {
 }
 
 func (t *TypeErrorRate) Set(value string) error {
-	parsedValue, err := strconv.ParseFloat(value, 64) //nolint: gomnd
+	parsedValue, err := strconv.ParseFloat(value, 64)
 	if err != nil {
 		return fmt.Errorf("value is not a float (%s): %w", value, err)
 	}
@@ -43,5 +43,5 @@ func (t TypeErrorRate) MarshalJSON() ([]byte, error) {
 }
 
 func (t TypeErrorRate) String() string {
-	return strconv.FormatFloat(t.Value, 'f', -1, 64) //nolint: gomnd
+	return strconv.FormatFloat(t.Value, 'f', -1, 64)
 }

internal/config/type_hostport.go

@@ -18,7 +18,7 @@ func (t *TypeHostPort) Set(value string) error {
 		return fmt.Errorf("incorrect host:port value (%v): %w", value, err)
 	}
 
-	portValue, err := strconv.ParseUint(port, 10, 16) //nolint: gomnd
+	portValue, err := strconv.ParseUint(port, 10, 16)
 	if err != nil {
 		return fmt.Errorf("incorrect port number (%v): %w", value, err)
 	}

internal/config/type_port.go

@@ -10,7 +10,7 @@ type TypePort struct {
 }
 
 func (t *TypePort) Set(value string) error {
-	portValue, err := strconv.ParseUint(value, 10, 16) //nolint: gomnd
+	portValue, err := strconv.ParseUint(value, 10, 16)
 	if err != nil {
 		return fmt.Errorf("incorrect port number (%v): %w", value, err)
 	}

internal/testlib/capture_output.go

@@ -35,7 +35,7 @@ func captureOutput(filefp **os.File, callback func()) string {
 
 	callback()
 
-	writer.Close()
+	writer.Close() //nolint: errcheck
 	<-closeChan
 
 	return strings.TrimSpace(buf.String())

internal/utils/net_listener.go

@@ -18,7 +18,7 @@ func (l Listener) Accept() (net.Conn, error) {
 	}
 
 	if err := network.SetClientSocketOptions(conn, 0); err != nil {
-		conn.Close()
+		conn.Close() //nolint: errcheck
 
 		return nil, fmt.Errorf("cannot set TCP options: %w", err)
 	}