🐛 : (go/v4) fixes based on golangci-lint run -v

docs/book/src/cronjob-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook.go

@@ -162,7 +162,7 @@ This marker is responsible for generating a validation webhook manifest.
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type CronJobCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &CronJobCustomValidator{}

docs/book/src/cronjob-tutorial/testdata/project/test/e2e/e2e_test.go

@@ -93,27 +93,27 @@ var _ = Describe("Manager", Ordered, func() {
 			cmd := exec.Command("kubectl", "logs", controllerPodName, "-n", namespace)
 			controllerLogs, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Controller logs:\n %s", controllerLogs))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Controller logs:\n %s", controllerLogs)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Controller logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Controller logs: %s", err)
 			}
 
 			By("Fetching Kubernetes events")
 			cmd = exec.Command("kubectl", "get", "events", "-n", namespace, "--sort-by=.lastTimestamp")
 			eventsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Kubernetes events:\n%s", eventsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Kubernetes events:\n%s", eventsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Kubernetes events: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Kubernetes events: %s", err)
 			}
 
 			By("Fetching curl-metrics logs")
 			cmd = exec.Command("kubectl", "logs", "curl-metrics", "-n", namespace)
 			metricsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Metrics logs:\n %s", metricsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Metrics logs:\n %s", metricsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get curl-metrics logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get curl-metrics logs: %s", err)
 			}
 
 			By("Fetching controller manager pod description")
@@ -316,7 +316,7 @@ func serviceAccountToken() (string, error) {
 
 		// Parse the JSON output to extract the token
 		var token tokenRequest
-		err = json.Unmarshal([]byte(output), &token)
+		err = json.Unmarshal(output, &token)
 		g.Expect(err).NotTo(HaveOccurred())
 
 		out = token.Status.Token

docs/book/src/cronjob-tutorial/testdata/project/test/utils/utils.go

@@ -92,7 +92,7 @@ func IsPrometheusCRDsInstalled() bool {
 	if err != nil {
 		return false
 	}
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range prometheusCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {
@@ -153,7 +153,7 @@ func IsCertManagerCRDsInstalled() bool {
 	}
 
 	// Check if any of the Cert Manager CRDs are present
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range certManagerCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {

docs/book/src/getting-started/testdata/project/test/e2e/e2e_test.go

@@ -93,27 +93,27 @@ var _ = Describe("Manager", Ordered, func() {
 			cmd := exec.Command("kubectl", "logs", controllerPodName, "-n", namespace)
 			controllerLogs, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Controller logs:\n %s", controllerLogs))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Controller logs:\n %s", controllerLogs)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Controller logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Controller logs: %s", err)
 			}
 
 			By("Fetching Kubernetes events")
 			cmd = exec.Command("kubectl", "get", "events", "-n", namespace, "--sort-by=.lastTimestamp")
 			eventsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Kubernetes events:\n%s", eventsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Kubernetes events:\n%s", eventsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Kubernetes events: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Kubernetes events: %s", err)
 			}
 
 			By("Fetching curl-metrics logs")
 			cmd = exec.Command("kubectl", "logs", "curl-metrics", "-n", namespace)
 			metricsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Metrics logs:\n %s", metricsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Metrics logs:\n %s", metricsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get curl-metrics logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get curl-metrics logs: %s", err)
 			}
 
 			By("Fetching controller manager pod description")
@@ -278,7 +278,7 @@ func serviceAccountToken() (string, error) {
 
 		// Parse the JSON output to extract the token
 		var token tokenRequest
-		err = json.Unmarshal([]byte(output), &token)
+		err = json.Unmarshal(output, &token)
 		g.Expect(err).NotTo(HaveOccurred())
 
 		out = token.Status.Token

docs/book/src/getting-started/testdata/project/test/utils/utils.go

@@ -92,7 +92,7 @@ func IsPrometheusCRDsInstalled() bool {
 	if err != nil {
 		return false
 	}
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range prometheusCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {
@@ -153,7 +153,7 @@ func IsCertManagerCRDsInstalled() bool {
 	}
 
 	// Check if any of the Cert Manager CRDs are present
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range certManagerCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {

docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v1/cronjob_webhook.go

@@ -166,7 +166,7 @@ This marker is responsible for generating a validation webhook manifest.
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type CronJobCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &CronJobCustomValidator{}

docs/book/src/multiversion-tutorial/testdata/project/internal/webhook/v2/cronjob_webhook.go

@@ -98,7 +98,7 @@ func (d *CronJobCustomDefaulter) Default(ctx context.Context, obj runtime.Object
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type CronJobCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &CronJobCustomValidator{}

docs/book/src/multiversion-tutorial/testdata/project/test/e2e/e2e_test.go

@@ -93,27 +93,27 @@ var _ = Describe("Manager", Ordered, func() {
 			cmd := exec.Command("kubectl", "logs", controllerPodName, "-n", namespace)
 			controllerLogs, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Controller logs:\n %s", controllerLogs))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Controller logs:\n %s", controllerLogs)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Controller logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Controller logs: %s", err)
 			}
 
 			By("Fetching Kubernetes events")
 			cmd = exec.Command("kubectl", "get", "events", "-n", namespace, "--sort-by=.lastTimestamp")
 			eventsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Kubernetes events:\n%s", eventsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Kubernetes events:\n%s", eventsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Kubernetes events: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Kubernetes events: %s", err)
 			}
 
 			By("Fetching curl-metrics logs")
 			cmd = exec.Command("kubectl", "logs", "curl-metrics", "-n", namespace)
 			metricsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Metrics logs:\n %s", metricsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Metrics logs:\n %s", metricsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get curl-metrics logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get curl-metrics logs: %s", err)
 			}
 
 			By("Fetching controller manager pod description")
@@ -316,7 +316,7 @@ func serviceAccountToken() (string, error) {
 
 		// Parse the JSON output to extract the token
 		var token tokenRequest
-		err = json.Unmarshal([]byte(output), &token)
+		err = json.Unmarshal(output, &token)
 		g.Expect(err).NotTo(HaveOccurred())
 
 		out = token.Status.Token

docs/book/src/multiversion-tutorial/testdata/project/test/utils/utils.go

@@ -92,7 +92,7 @@ func IsPrometheusCRDsInstalled() bool {
 	if err != nil {
 		return false
 	}
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range prometheusCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {
@@ -153,7 +153,7 @@ func IsCertManagerCRDsInstalled() bool {
 	}
 
 	// Check if any of the Cert Manager CRDs are present
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range certManagerCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {

pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/internal/templates/controllers/controller.go

@@ -153,7 +153,7 @@ func (r *{{ .Resource.Kind }}Reconciler) Reconcile(ctx context.Context, req ctrl
 	}
 
 	// Let's just set the status as Unknown when no status is available
-	if {{ lower .Resource.Kind }}.Status.Conditions == nil || len({{ lower .Resource.Kind }}.Status.Conditions) == 0 {
+	if len({{ lower .Resource.Kind }}.Status.Conditions) == 0 {
 		meta.SetStatusCondition(&{{ lower .Resource.Kind }}.Status.Conditions, metav1.Condition{Type: typeAvailable{{ .Resource.Kind }}, Status: metav1.ConditionUnknown, Reason: "Reconciling", Message: "Starting reconciliation"})
 		if err = r.Status().Update(ctx, {{ lower .Resource.Kind }}); err != nil {
 			log.Error(err, "Failed to update {{ .Resource.Kind }} status")

pkg/plugins/golang/v4/scaffolds/internal/templates/test/e2e/test.go

@@ -177,8 +177,8 @@ const metricsRoleBindingName = "{{ .ProjectName }}-metrics-binding"
 
 var _ = Describe("Manager", Ordered, func() {
 	var controllerPodName string
-	
-	// Before running the tests, set up the environment by creating the namespace, 
+
+	// Before running the tests, set up the environment by creating the namespace,
 	// installing CRDs, and deploying the controller.
 	BeforeAll(func() {
 		By("creating manager namespace")
@@ -197,7 +197,7 @@ var _ = Describe("Manager", Ordered, func() {
 		Expect(err).NotTo(HaveOccurred(), "Failed to deploy the controller-manager")
 	})
 
-	// After all tests have been executed, clean up by undeploying the controller, uninstalling CRDs, 
+	// After all tests have been executed, clean up by undeploying the controller, uninstalling CRDs,
 	// and deleting the namespace.
 	AfterAll(func() {
 		By("cleaning up the curl pod for metrics")
@@ -226,27 +226,27 @@ var _ = Describe("Manager", Ordered, func() {
 			cmd := exec.Command("kubectl", "logs", controllerPodName, "-n", namespace)
 			controllerLogs, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Controller logs:\n %s", controllerLogs))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Controller logs:\n %s", controllerLogs)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Controller logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Controller logs: %s", err)
 			}
 
 			By("Fetching Kubernetes events")
 			cmd = exec.Command("kubectl", "get", "events", "-n", namespace, "--sort-by=.lastTimestamp")
 			eventsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Kubernetes events:\n%s", eventsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Kubernetes events:\n%s", eventsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get Kubernetes events: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get Kubernetes events: %s", err)
 			}
 
 			By("Fetching curl-metrics logs")
 			cmd = exec.Command("kubectl", "logs", "curl-metrics", "-n", namespace)
 			metricsOutput, err := utils.Run(cmd)
 			if err == nil {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Metrics logs:\n %s", metricsOutput))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Metrics logs:\n %s", metricsOutput)
 			} else {
-				_, _ = fmt.Fprintf(GinkgoWriter, fmt.Sprintf("Failed to get curl-metrics logs: %s", err))
+				_, _ = fmt.Fprintf(GinkgoWriter, "Failed to get curl-metrics logs: %s", err)
 			}
 
 			By("Fetching controller manager pod description")
@@ -271,7 +271,7 @@ var _ = Describe("Manager", Ordered, func() {
 				cmd := exec.Command("kubectl", "get",
 					"pods", "-l", "control-plane=controller-manager",
 					"-o", "go-template={{"{{"}} range .items {{"}}"}}" +
-					"{{"{{"}} if not .metadata.deletionTimestamp {{"}}"}}" + 
+					"{{"{{"}} if not .metadata.deletionTimestamp {{"}}"}}" +
 					"{{"{{"}} .metadata.name {{"}}"}}"+
 					"{{"{{"}} \"\\n\" {{"}}"}}{{"{{"}} end {{"}}"}}{{"{{"}} end {{"}}"}}",
 					"-n", namespace,
@@ -369,10 +369,10 @@ var _ = Describe("Manager", Ordered, func() {
 
 		// +kubebuilder:scaffold:e2e-webhooks-checks
 
-		// TODO: Customize the e2e test suite with scenarios specific to your project. 
-		// Consider applying sample/CR(s) and check their status and/or verifying 
+		// TODO: Customize the e2e test suite with scenarios specific to your project.
+		// Consider applying sample/CR(s) and check their status and/or verifying
 		// the reconciliation by using the metrics, i.e.:
-		// metricsOutput := getMetricsOutput()		
+		// metricsOutput := getMetricsOutput()
 		// Expect(metricsOutput).To(ContainSubstring(
 		//    fmt.Sprintf(` + "`controller_runtime_reconcile_total{controller=\"%s\",result=\"success\"} 1`" + `,
 		//    strings.ToLower(<Kind>),
@@ -381,7 +381,7 @@ var _ = Describe("Manager", Ordered, func() {
 })
 
 // serviceAccountToken returns a token for the specified service account in the given namespace.
-// It uses the Kubernetes TokenRequest API to generate a token by directly sending a request 
+// It uses the Kubernetes TokenRequest API to generate a token by directly sending a request
 // and parsing the resulting token from the API response.
 func serviceAccountToken() (string, error) {
 	const tokenRequestRawString = ` + "`" + `{
@@ -411,7 +411,7 @@ func serviceAccountToken() (string, error) {
 
 		// Parse the JSON output to extract the token
 		var token tokenRequest
-		err = json.Unmarshal([]byte(output), &token)
+		err = json.Unmarshal(output, &token)
 		g.Expect(err).NotTo(HaveOccurred())
 
 		out = token.Status.Token

pkg/plugins/golang/v4/scaffolds/internal/templates/test/utils/utils.go

@@ -117,7 +117,7 @@ func IsPrometheusCRDsInstalled() bool {
 	if err != nil {
 		return false
 	}
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range prometheusCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {
@@ -178,7 +178,7 @@ func IsCertManagerCRDsInstalled() bool {
 	}
 
 	// Check if any of the Cert Manager CRDs are present
-	crdList := GetNonEmptyLines(string(output))
+	crdList := GetNonEmptyLines(output)
 	for _, crd := range certManagerCRDs {
 		for _, line := range crdList {
 			if strings.Contains(line, crd) {

pkg/plugins/golang/v4/scaffolds/internal/templates/webhooks/webhook.go

@@ -209,7 +209,7 @@ func (d *{{ .Resource.Kind }}CustomDefaulter) Default(ctx context.Context, obj r
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type {{ .Resource.Kind }}CustomValidator struct{
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &{{ .Resource.Kind }}CustomValidator{}

testdata/project-v4-multigroup/internal/controller/example.com/busybox_controller.go

@@ -99,7 +99,7 @@ func (r *BusyboxReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
 	}
 
 	// Let's just set the status as Unknown when no status is available
-	if busybox.Status.Conditions == nil || len(busybox.Status.Conditions) == 0 {
+	if len(busybox.Status.Conditions) == 0 {
 		meta.SetStatusCondition(&busybox.Status.Conditions, metav1.Condition{Type: typeAvailableBusybox, Status: metav1.ConditionUnknown, Reason: "Reconciling", Message: "Starting reconciliation"})
 		if err = r.Status().Update(ctx, busybox); err != nil {
 			log.Error(err, "Failed to update Busybox status")

testdata/project-v4-multigroup/internal/controller/example.com/memcached_controller.go

@@ -99,7 +99,7 @@ func (r *MemcachedReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 	}
 
 	// Let's just set the status as Unknown when no status is available
-	if memcached.Status.Conditions == nil || len(memcached.Status.Conditions) == 0 {
+	if len(memcached.Status.Conditions) == 0 {
 		meta.SetStatusCondition(&memcached.Status.Conditions, metav1.Condition{Type: typeAvailableMemcached, Status: metav1.ConditionUnknown, Reason: "Reconciling", Message: "Starting reconciliation"})
 		if err = r.Status().Update(ctx, memcached); err != nil {
 			log.Error(err, "Failed to update Memcached status")

testdata/project-v4-multigroup/internal/webhook/apps/v1/deployment_webhook.go

@@ -80,7 +80,7 @@ func (d *DeploymentCustomDefaulter) Default(ctx context.Context, obj runtime.Obj
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type DeploymentCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &DeploymentCustomValidator{}

testdata/project-v4-multigroup/internal/webhook/core/v1/pod_webhook.go

@@ -52,7 +52,7 @@ func SetupPodWebhookWithManager(mgr ctrl.Manager) error {
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type PodCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &PodCustomValidator{}

testdata/project-v4-multigroup/internal/webhook/crew/v1/captain_webhook.go

@@ -81,7 +81,7 @@ func (d *CaptainCustomDefaulter) Default(ctx context.Context, obj runtime.Object
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type CaptainCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &CaptainCustomValidator{}

testdata/project-v4-multigroup/internal/webhook/example.com/v1alpha1/memcached_webhook.go

@@ -53,7 +53,7 @@ func SetupMemcachedWebhookWithManager(mgr ctrl.Manager) error {
 // NOTE: The +kubebuilder:object:generate=false marker prevents controller-gen from generating DeepCopy methods,
 // as this struct is used only for temporary operations and does not need to be deeply copied.
 type MemcachedCustomValidator struct {
-	//TODO(user): Add more fields as needed for validation
+	// TODO(user): Add more fields as needed for validation
 }
 
 var _ webhook.CustomValidator = &MemcachedCustomValidator{}