chore(deps): update dependency golangci/golangci-lint to v2.3.1

.gitea/workflows/golang-linters.yaml

@@ -26,4 +26,4 @@ jobs:
         go-version: ${{ matrix.go }}
     - uses: golangci/golangci-lint-action@v8.0.0
       with:
-        version: v2.3.0 # renovate: datasource=github-releases depName=golangci/golangci-lint
+        version: v2.3.1 # renovate: datasource=github-releases depName=golangci/golangci-lint

cmd/autharr/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"log"
 	"os"
 	"path/filepath"
 	"time"
@@ -26,7 +27,9 @@ autharr /etc/lidarr/config.xml`,
 	}
 	rootCmd.Flags().Bool("watch", false, "Listens for changes to the configuration and writes the token continuously to the output")
 
-	rootCmd.Execute()
+	if err := rootCmd.Execute(); err != nil {
+		log.Fatalln(err)
+	}
 }
 
 func runE(cmd *cobra.Command, args []string) error {
@@ -84,10 +87,16 @@ func runWatch(cmd *cobra.Command, args []string) error {
 		select {
 		case <-cmd.Context().Done():
 			return nil
-		case err := <-errorChannel:
-			logrus.WithError(err).Errorln("Received from config watcher")
+		case err, open := <-errorChannel:
+			if !open {
+				return fmt.Errorf("error channel has been closed")
+			}
+			logrus.WithError(err).Errorln("received from config watcher")
 		case <-timer.C:
-			writeConfig(cachedConfig, dest)
+			err = writeConfig(cachedConfig, dest)
+			if err != nil {
+				logrus.WithError(err).Errorln("failed to write config")
+			}
 		case config := <-configChannel:
 			cachedConfig = config
 			timer.Reset(waitFor)
@@ -105,18 +114,23 @@ func writeConfig(config *domain.Config, dest string) error {
 	case len(dest) > 0:
 		dirname := filepath.Dir(dest)
 
+		// #nosec G301
 		err := os.MkdirAll(dirname, 0755)
 		if err != nil {
 			return err
 		}
 
+		// #nosec G304
 		f, err := os.Create(dest)
 		if err != nil {
 			return err
 		}
 		defer func() { _ = f.Close() }()
 
-		f.WriteString(config.API.Token)
+		_, err = f.WriteString(config.API.Token)
+		if err != nil {
+			return err
+		}
 	}
 
 	return nil

cmd/healarr/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"context"
 	"fmt"
+	"log"
 	"time"
 
 	"git.cryptic.systems/volker.raschek/tarr/pkg/config"
@@ -95,7 +96,10 @@ healarr sonarr https://sonarr.example.com:8443 --api-token my-token`,
 	rootCmd.PersistentFlags().Bool("insecure", false, "Trust insecure TLS certificates")
 	rootCmd.PersistentFlags().Duration("timeout", time.Minute, "Timeout")
 
-	rootCmd.Execute()
+	err := rootCmd.Execute()
+	if err != nil {
+		log.Fatalln(err)
+	}
 }
 
 func runBazarrE(cmd *cobra.Command, args []string) error {
@@ -152,7 +156,7 @@ func runE(cmd *cobra.Command, args []string, queryKey string) error {
 
 	switch {
 	case len(apiToken) <= 0 && len(configPath) <= 0:
-		return fmt.Errorf("At least --api-token oder --config must be defined")
+		return fmt.Errorf("at least --api-token oder --config must be defined")
 	case len(apiToken) > 0 && len(configPath) <= 0:
 		err = health.NewReadinessProbe(args[0]).
 			QueryAdd(queryKey, apiToken).
@@ -175,7 +179,7 @@ func runE(cmd *cobra.Command, args []string, queryKey string) error {
 			return err
 		}
 	default:
-		return fmt.Errorf("Neither --api-token nor --config can be used at the same time.")
+		return fmt.Errorf("neither --api-token nor --config can be used at the same time")
 	}
 
 	return nil

pkg/config/config.go

@@ -46,11 +46,12 @@ type YAMLConfig struct {
 // Read reads the config struct from a file. The decoding format will be determined by the file extension like
 // `xml` or `yaml`.
 func ReadConfig(name string) (*domain.Config, error) {
+	// #nosec G304
 	f, err := os.Open(name)
 	if err != nil {
 		return nil, err
 	}
-	defer f.Close()
+	defer func() { _ = f.Close() }()
 
 	switch {
 	case strings.HasSuffix(name, "xml"):
@@ -58,7 +59,7 @@ func ReadConfig(name string) (*domain.Config, error) {
 	case strings.HasSuffix(name, "yml") || strings.HasSuffix(name, "yaml"):
 		return readYAMLConfig(f)
 	default:
-		return nil, fmt.Errorf("Unsupported file extension")
+		return nil, fmt.Errorf("unsupported file extension")
 	}
 }
 
@@ -97,8 +98,8 @@ func readYAMLConfig(r io.Reader) (*domain.Config, error) {
 }
 
 func WatchConfig(ctx context.Context, name string) (<-chan *domain.Config, <-chan error) {
-	configChannel := make(chan *domain.Config, 0)
-	errorChannel := make(chan error, 0)
+	configChannel := make(chan *domain.Config)
+	errorChannel := make(chan error)
 
 	go func() {
 		wait := time.Second * 3
@@ -110,14 +111,18 @@ func WatchConfig(ctx context.Context, name string) (<-chan *domain.Config, <-cha
 			errorChannel <- err
 			return
 		}
-		watcher.Add(name)
+		err = watcher.Add(name)
+		if err != nil {
+			errorChannel <- err
+			return
+		}
 
 		for {
 			select {
 			case <-ctx.Done():
 				close(configChannel)
 				close(errorChannel)
-				break
+				return
 			case event, open := <-watcher.Events:
 				if !open {
 					errorChannel <- fmt.Errorf("FSWatcher closed channel: %w", err)
@@ -145,11 +150,12 @@ func WatchConfig(ctx context.Context, name string) (<-chan *domain.Config, <-cha
 // WriteConfig writes the config struct into the file. The encoding format will be determined by the file extension like
 // `xml` or `yaml`.
 func WriteConfig(name string, config *domain.Config) error {
+	// #nosec G304
 	f, err := os.Create(name)
 	if err != nil {
 		return err
 	}
-	defer f.Close()
+	defer func() { _ = f.Close() }()
 
 	switch {
 	case strings.HasSuffix(name, "xml"):
@@ -157,13 +163,13 @@ func WriteConfig(name string, config *domain.Config) error {
 	case strings.HasSuffix(name, "yml") || strings.HasSuffix(name, "yaml"):
 		return writeYAMLConfig(f, config)
 	default:
-		return fmt.Errorf("Unsupported file extension")
+		return fmt.Errorf("unsupported file extension")
 	}
 }
 
 func writeXMLConfig(w io.Writer, config *domain.Config) error {
 	xmlEncoder := xml.NewEncoder(w)
-	defer xmlEncoder.Close()
+	defer func() { _ = xmlEncoder.Close() }()
 
 	xmlConfig := &XMLConfig{
 		APIToken: config.API.Token,
@@ -180,7 +186,7 @@ func writeXMLConfig(w io.Writer, config *domain.Config) error {
 
 func writeYAMLConfig(w io.Writer, config *domain.Config) error {
 	yamlEncoder := yaml.NewEncoder(w)
-	defer yamlEncoder.Close()
+	defer func() { _ = yamlEncoder.Close() }()
 
 	yamlConfig := &YAMLConfig{
 		Auth: YAMLConfigAuth{

pkg/config/config_test.go

@@ -24,6 +24,7 @@ func TestReadWriteConfig_XML(t *testing.T) {
 	t.Cleanup(func() { _ = os.RemoveAll(tmpDir) })
 
 	expectedXMLConfigName := filepath.Join(tmpDir, "expected_config.xml")
+	// #nosec G304
 	f, err := os.Create(expectedXMLConfigName)
 	require.NoError(err)
 
@@ -38,6 +39,7 @@ func TestReadWriteConfig_XML(t *testing.T) {
 	err = config.WriteConfig(actualXMLConfigName, actualConfig)
 	require.NoError(err)
 
+	// #nosec G304
 	b, err := os.ReadFile(actualXMLConfigName)
 	require.NoError(err)
 	require.Equal(expectedXMLConfig, string(b))
@@ -51,6 +53,7 @@ func TestReadWriteConfig_YAML(t *testing.T) {
 	t.Cleanup(func() { _ = os.RemoveAll(tmpDir) })
 
 	expectedYAMLConfigName := filepath.Join(tmpDir, "expected_config.yaml")
+	// #nosec G304
 	f, err := os.Create(expectedYAMLConfigName)
 	require.NoError(err)
 
@@ -65,6 +68,7 @@ func TestReadWriteConfig_YAML(t *testing.T) {
 	err = config.WriteConfig(actualYAMLConfigName, actualConfig)
 	require.NoError(err)
 
+	// #nosec G304
 	b, err := os.ReadFile(actualYAMLConfigName)
 	require.NoError(err)
 	require.Equal(expectedYAMLConfig, string(b))

pkg/health/health.go

@@ -9,8 +9,8 @@ import (
 	"net/url"
 )
 
-var ErrNoAPIToken error = errors.New("No API token defined")
-var ErrNoURL error = errors.New("No API token defined")
+var ErrNoAPIToken error = errors.New("no API token defined")
+var ErrNoURL error = errors.New("no API token defined")
 
 type ReadinessProbe struct {
 	additionalQueryValues url.Values
@@ -40,6 +40,7 @@ func (rp *ReadinessProbe) Run(ctx context.Context) error {
 	httpClient := &http.Client{
 		Transport: &http.Transport{
 			TLSClientConfig: &tls.Config{
+				// #nosec G402
 				InsecureSkipVerify: rp.insecure,
 			},
 		},
@@ -64,7 +65,7 @@ func (rp *ReadinessProbe) Run(ctx context.Context) error {
 	}
 
 	if resp.StatusCode != http.StatusOK {
-		return fmt.Errorf("Received unexpected HTTP status code %v", resp.StatusCode)
+		return fmt.Errorf("received unexpected HTTP status code %v", resp.StatusCode)
 	}
 
 	return nil