refactor: clean up comment, fixing lint and format

cmd/config.go

@@ -68,14 +68,14 @@ func loadConfig() error {
 	defaults.SetDefaults(&config)
 	err = viper.Unmarshal(&config)
 	if err != nil {
-		return fmt.Errorf("unable to unmarshal config to struct: %v\n", err)
+		return fmt.Errorf("unable to unmarshal config to struct: %w", err)
 	}
 
 	return nil
 }
 
 func bindEnvVars() {
-	err, configKeys := getFlattenedStructKeys(Config{})
+	configKeys, err := getFlattenedStructKeys(Config{})
 	if err != nil {
 		panic(err)
 	}
@@ -89,22 +89,22 @@ func bindEnvVars() {
 	}
 }
 
-func getFlattenedStructKeys(config Config) (error, []string) {
+func getFlattenedStructKeys(config Config) ([]string, error) {
 	var structMap map[string]interface{}
 	err := mapstructure.Decode(config, &structMap)
 	if err != nil {
-		return err, nil
+		return nil, err
 	}
 
 	flat, err := flatten.Flatten(structMap, "", flatten.DotStyle)
 	if err != nil {
-		return err, nil
+		return nil, err
 	}
 
 	keys := make([]string, 0, len(flat))
 	for k := range flat {
 		keys = append(keys, k)
 	}
 
-	return nil, keys
+	return keys, nil
 }

cmd/serve.go

@@ -88,9 +88,7 @@ func initRouter(
 	if err != nil {
 		log.Fatal(err)
 	}
-	tagTemplateService := tag.NewTemplateService(
-		templateRepository,
-	)
+	tagTemplateService := tag.NewTemplateService(templateRepository)
 	tagService := tag.NewService(
 		tagRepository,
 		tagTemplateService,

store/postgres/postgres_test.go

@@ -54,7 +54,6 @@ func newTestClient(logger *logrus.Logger) (*postgres.Client, *dockertest.Pool, *
 		return nil, nil, nil, errors.Wrap(err, "Could not start resource")
 	}
 
-	// pgConfig.Host = "localhost"
 	pgConfig.Port, err = strconv.Atoi(resource.GetPort("5432/tcp"))
 	if err != nil {
 		return nil, nil, nil, errors.Wrap(err, "cannot parse external port of container to int")