lint

.github/workflows/lint.yml

@@ -39,7 +39,7 @@ jobs:
     - name: golangci-lint
       uses: golangci/golangci-lint-action@v4
       with:
-        version: v1.55
+        version: v1.56
         args: --issues-exit-code=1 --timeout 10m
         only-new-issues: false
         # the cache is already managed above, enabling it here

cmd/root.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"bytes"
 	"context"
+	"errors"
 	"flag"
 	"fmt"
 	"os"
@@ -33,9 +34,9 @@ func HandleSignals(ctx context.Context) error {
 	case s := <-signalChan:
 		switch s {
 		case syscall.SIGTERM:
-			return fmt.Errorf("received SIGTERM")
+			return errors.New("received SIGTERM")
 		case os.Interrupt: // cross-platform SIGINT
-			return fmt.Errorf("received interrupt")
+			return errors.New("received interrupt")
 		}
 	case <-ctx.Done():
 		return ctx.Err()
@@ -60,7 +61,7 @@ func Execute() error {
 	}
 
 	if configPath == nil || *configPath == "" {
-		return fmt.Errorf("configuration file is required")
+		return errors.New("configuration file is required")
 	}
 
 	configBytes, err := cfg.MergedConfig(*configPath)
@@ -101,7 +102,7 @@ func Execute() error {
 			ScenariosNotContaining: strings.Join(config.CrowdsecConfig.ExcludeScenariosContaining, ","),
 			Origins:                strings.Join(config.CrowdsecConfig.OnlyIncludeDecisionsFrom, ","),
 		},
-		UserAgent:          fmt.Sprintf("crowdsec-blocklist-mirror/%s", version.String()),
+		UserAgent:          "crowdsec-blocklist-mirror/" + version.String(),
 		CertPath:           config.CrowdsecConfig.CertPath,
 		KeyPath:            config.CrowdsecConfig.KeyPath,
 		CAPath:             config.CrowdsecConfig.CAPath,
@@ -121,7 +122,7 @@ func Execute() error {
 
 	g.Go(func() error {
 		decisionStreamer.Run(ctx)
-		return fmt.Errorf("bouncer stream halted")
+		return errors.New("bouncer stream halted")
 	})
 
 	g.Go(func() error {
@@ -148,10 +149,12 @@ func Execute() error {
 				if decisions == nil {
 					continue
 				}
+
 				if len(decisions.New) > 0 {
 					log.Infof("received %d new decisions", len(decisions.New))
 					registry.GlobalDecisionRegistry.AddDecisions(decisions.New)
 				}
+
 				if len(decisions.Deleted) > 0 {
 					log.Infof("received %d expired decisions", len(decisions.Deleted))
 					registry.GlobalDecisionRegistry.DeleteDecisions(decisions.Deleted)

pkg/cfg/config.go

@@ -1,6 +1,7 @@
 package cfg
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -66,11 +67,11 @@ type Config struct {
 
 func (cfg *Config) ValidateAndSetDefaults() error {
 	if cfg.CrowdsecConfig.LapiKey == "" && cfg.CrowdsecConfig.CertPath == "" {
-		return fmt.Errorf("one of lapi_key or cert_path is required")
+		return errors.New("one of lapi_key or cert_path is required")
 	}
 
 	if cfg.CrowdsecConfig.LapiURL == "" {
-		return fmt.Errorf("lapi_url is required")
+		return errors.New("lapi_url is required")
 	}
 
 	if !strings.HasSuffix(cfg.CrowdsecConfig.LapiURL, "/") {

pkg/cfg/logging.go

@@ -1,7 +1,7 @@
 package cfg
 
 import (
-	"fmt"
+	"errors"
 	"io"
 	"os"
 	"path/filepath"
@@ -75,7 +75,7 @@ func (c *LoggingConfig) setDefaults() {
 
 func (c *LoggingConfig) validate() error {
 	if c.LogMedia != "stdout" && c.LogMedia != "file" {
-		return fmt.Errorf("log_media should be either 'stdout' or 'file'")
+		return errors.New("log_media should be either 'stdout' or 'file'")
 	}
 
 	return nil

pkg/server/logging.go

@@ -138,12 +138,14 @@ func appendQuoted(buf []byte, s string) []byte {
 		if r == rune('"') || r == '\\' { // always backslashed
 			buf = append(buf, '\\')
 			buf = append(buf, byte(r))
+
 			continue
 		}
 
 		if strconv.IsPrint(r) {
 			n := utf8.EncodeRune(runeTmp[:], r)
 			buf = append(buf, runeTmp[:n]...)
+
 			continue
 		}
 

pkg/server/server.go

@@ -109,7 +109,7 @@ func satisfiesBasicAuth(r *http.Request, user, password string) bool {
 		return false
 	}
 
-	expectedVal := fmt.Sprintf("Basic %s", basicAuth(user, password))
+	expectedVal := "Basic " + basicAuth(user, password)
 	foundVal := r.Header[http.CanonicalHeaderKey("Authorization")][0]
 	log.WithFields(log.Fields{
 		"expected": expectedVal,