fix lint

Makefile

@@ -4,3 +4,16 @@ SHELL := /bin/bash
 
 build:
 	go build -o ./build/gnfd-cmd cmd/*.go
+
+golangci_lint_cmd=golangci-lint
+golangci_version=v1.51.2
+
+lint:
+	@echo "--> Running linter"
+	@go install github.com/golangci/golangci-lint/cmd/golangci-lint@$(golangci_version)
+	@$(golangci_lint_cmd) run --timeout=10m
+
+lint-fix:
+	@echo "--> Running linter"
+	@go install github.com/golangci/golangci-lint/cmd/golangci-lint@$(golangci_version)
+	@$(golangci_lint_cmd) run --fix --out-format=tab --issues-exit-code=0

cmd/cmd_tag.go

@@ -61,7 +61,10 @@ func setTag(ctx *cli.Context) error {
 
 	tagsParam := ctx.String(tagFlag)
 	if tagsParam == "" {
-		toCmdErr(errors.New("invalid tags parameter"))
+		err = errors.New("invalid tags parameter")
+	}
+	if err != nil {
+		return toCmdErr(err)
 	}
 	tags := &storageTypes.ResourceTags{}
 	err = json.Unmarshal([]byte(tagsParam), &tags.Tags)