🌱 Enable if-return linter check and fix issues for Kubebuilder CLI (#4461)

Enable if-return linter check and fix issues for Kubebuilder CLI

Author: camilamacedo86

.golangci.yml

@@ -35,7 +35,6 @@ linters-settings:
       - name: exported
         disabled: true  # TODO: Investigate if it should be enabled. Disabled for now due to many findings.
       - name: if-return
-        disabled: true  # TODO: Investigate if it should be enabled. Disabled for now due to many findings.
       - name: increment-decrement
       - name: var-naming
       - name: var-declaration

pkg/cli/alpha/internal/generate.go

@@ -81,12 +81,7 @@ func (opts *Generate) Generate() error {
 			return err
 		}
 	}
-
-	if err := migrateDeployImagePlugin(config); err != nil {
-		return err
-	}
-
-	return nil
+	return migrateDeployImagePlugin(config)
 }
 
 // Validate ensures the options are valid and kubebuilder is installed.

pkg/plugins/common/kustomize/v2/init.go

@@ -80,11 +80,7 @@ func (p *initSubcommand) InjectConfig(c config.Config) error {
 	if err := validation.IsDNS1123Label(p.name); err != nil {
 		return fmt.Errorf("project name (%s) is invalid: %v", p.name, err)
 	}
-	if err := p.config.SetProjectName(p.name); err != nil {
-		return err
-	}
-
-	return nil
+	return p.config.SetProjectName(p.name)
 }
 
 func (p *initSubcommand) Scaffold(fs machinery.Filesystem) error {

pkg/plugins/golang/deploy-image/v1alpha1/api.go

@@ -212,11 +212,7 @@ func (p *createAPISubcommand) Scaffold(fs machinery.Filesystem) error {
 		Kind:    p.resource.GVK.Kind,
 		Options: configDataOptions,
 	})
-	if err := p.config.EncodePluginConfig(pluginKey, cfg); err != nil {
-		return err
-	}
-
-	return nil
+	return p.config.EncodePluginConfig(pluginKey, cfg)
 }
 
 func (p *createAPISubcommand) PostScaffold() error {

pkg/plugins/golang/deploy-image/v1alpha1/scaffolds/api.go

@@ -130,11 +130,7 @@ func (s *apiScaffolder) Scaffold() error {
 		return fmt.Errorf("error creating controller/**_controller_test.go: %v", err)
 	}
 
-	if err := s.addEnvVarIntoManager(); err != nil {
-		return err
-	}
-
-	return nil
+	return s.addEnvVarIntoManager()
 }
 
 // addEnvVarIntoManager will update the config/manager/manager.yaml by adding

pkg/plugins/optional/helm/v1alpha/edit.go

@@ -82,9 +82,5 @@ func (p *editSubcommand) Scaffold(fs machinery.Filesystem) error {
 	}
 
 	// Track the resources following a declarative approach
-	if err := insertPluginMetaToConfig(p.config, pluginConfig{}); err != nil {
-		return err
-	}
-
-	return nil
+	return insertPluginMetaToConfig(p.config, pluginConfig{})
 }

pkg/plugins/optional/helm/v1alpha/init.go

@@ -55,9 +55,5 @@ func (p *initSubcommand) Scaffold(fs machinery.Filesystem) error {
 	}
 
 	// Track the resources following a declarative approach
-	if err := insertPluginMetaToConfig(p.config, pluginConfig{}); err != nil {
-		return err
-	}
-
-	return nil
+	return insertPluginMetaToConfig(p.config, pluginConfig{})
 }

test/e2e/utils/kubectl.go

@@ -135,10 +135,7 @@ func (v *KubernetesVersion) prepare() error {
 	if err := v.ClientVersion.parseVersionInts(); err != nil {
 		return err
 	}
-	if err := v.ServerVersion.parseVersionInts(); err != nil {
-		return err
-	}
-	return nil
+	return v.ServerVersion.parseVersionInts()
 }
 
 // Version is a func to run kubectl version command
@@ -158,8 +155,5 @@ func (v *KubernetesVersion) decode(out string) (err error) {
 	if err := dec.Decode(&v); err != nil {
 		return err
 	}
-	if err := v.prepare(); err != nil {
-		return err
-	}
-	return nil
+	return v.prepare()
 }