Update golangci-lint

.golangci.yml

@@ -12,6 +12,9 @@ linters:
     - gocognit
     - gomnd
     - interfacer
+    - godot
+    - goerr113
+    - nestif
   # Run with --fast=false for more extensive checks
   fast: true
 issues:

cmd/clusterctl/client/cluster/client.go

@@ -215,7 +215,7 @@ type Proxy interface {
 }
 
 // retryWithExponentialBackoff repeats an operation until it passes or the exponential backoff times out.
-func retryWithExponentialBackoff(opts wait.Backoff, operation func() error) error { //nolint:unparam
+func retryWithExponentialBackoff(opts wait.Backoff, operation func() error) error {
 	log := logf.Log
 
 	i := 0

cmd/clusterctl/client/cluster/objectgraph_test.go

@@ -858,7 +858,7 @@ func getDetachedObjectGraphWihObjs(objs []runtime.Object) (*objectGraph, error)
 	graph := newObjectGraph(nil) // detached from any cluster
 	for _, o := range objs {
 		u := &unstructured.Unstructured{}
-		if err := test.FakeScheme.Convert(o, u, nil); err != nil { //nolint
+		if err := test.FakeScheme.Convert(o, u, nil); err != nil {
 			return nil, errors.Wrap(err, "failed to convert object in unstructured")
 		}
 		graph.addObj(u)

cmd/clusterctl/client/cluster/proxy_test.go

@@ -67,7 +67,7 @@ func TestProxyGetConfig(t *testing.T) {
 				g.Expect(err).NotTo(HaveOccurred())
 				defer os.RemoveAll(dir)
 				configFile := filepath.Join(dir, ".test-kubeconfig.yaml")
-				g.Expect(ioutil.WriteFile(configFile, []byte(tt.kubeconfigContents), 0640)).To(Succeed())
+				g.Expect(ioutil.WriteFile(configFile, []byte(tt.kubeconfigContents), 0600)).To(Succeed())
 
 				proxy := newProxy(Kubeconfig{Path: configFile, Context: tt.context})
 				conf, err := proxy.GetConfig()
@@ -94,7 +94,7 @@ func TestProxyGetConfig(t *testing.T) {
 		g.Expect(err).NotTo(HaveOccurred())
 		defer os.RemoveAll(dir)
 		configFile := filepath.Join(dir, ".test-kubeconfig.yaml")
-		g.Expect(ioutil.WriteFile(configFile, []byte(kubeconfig("management", "default")), 0640)).To(Succeed())
+		g.Expect(ioutil.WriteFile(configFile, []byte(kubeconfig("management", "default")), 0600)).To(Succeed())
 
 		proxy := newProxy(Kubeconfig{Path: configFile, Context: "management"}, InjectProxyTimeout(23*time.Second))
 		conf, err := proxy.GetConfig()
@@ -121,7 +121,7 @@ func TestKUBECONFIGEnvVar(t *testing.T) {
 		g.Expect(err).NotTo(HaveOccurred())
 		defer os.RemoveAll(dir)
 		configFile := filepath.Join(dir, ".test-kubeconfig.yaml")
-		g.Expect(ioutil.WriteFile(configFile, []byte(kubeconfigContents), 0640)).To(Succeed())
+		g.Expect(ioutil.WriteFile(configFile, []byte(kubeconfigContents), 0600)).To(Succeed())
 
 		proxy := newProxy(
 			// dont't give an explicit path but rather define the file in the
@@ -149,7 +149,7 @@ func TestKUBECONFIGEnvVar(t *testing.T) {
 		g.Expect(err).NotTo(HaveOccurred())
 		defer os.RemoveAll(dir)
 		configFile := filepath.Join(dir, ".test-kubeconfig.yaml")
-		g.Expect(ioutil.WriteFile(configFile, []byte(kubeconfigContents), 0640)).To(Succeed())
+		g.Expect(ioutil.WriteFile(configFile, []byte(kubeconfigContents), 0600)).To(Succeed())
 
 		proxy := newProxy(
 			// dont't give an explicit path but rather define the file in the
@@ -226,7 +226,7 @@ func TestProxyCurrentNamespace(t *testing.T) {
 				g.Expect(err).NotTo(HaveOccurred())
 				defer os.RemoveAll(dir)
 				configFile = filepath.Join(dir, ".test-kubeconfig.yaml")
-				g.Expect(ioutil.WriteFile(configFile, []byte(tt.kubeconfigContents), 0640)).To(Succeed())
+				g.Expect(ioutil.WriteFile(configFile, []byte(tt.kubeconfigContents), 0600)).To(Succeed())
 			}
 
 			proxy := newProxy(Kubeconfig{Path: configFile, Context: tt.kubeconfigContext})

cmd/clusterctl/client/cluster/template_test.go

@@ -230,7 +230,7 @@ func Test_templateClient_getLocalFileContent(t *testing.T) {
 	defer os.RemoveAll(tmpDir)
 
 	path := filepath.Join(tmpDir, "cluster-template.yaml")
-	g.Expect(ioutil.WriteFile(path, []byte(template), 0644)).To(Succeed())
+	g.Expect(ioutil.WriteFile(path, []byte(template), 0600)).To(Succeed())
 
 	type args struct {
 		rURL *url.URL
@@ -302,7 +302,7 @@ func Test_templateClient_GetFromURL(t *testing.T) {
 	})
 
 	path := filepath.Join(tmpDir, "cluster-template.yaml")
-	g.Expect(ioutil.WriteFile(path, []byte(template), 0644)).To(Succeed())
+	g.Expect(ioutil.WriteFile(path, []byte(template), 0600)).To(Succeed())
 
 	type args struct {
 		templateURL       string

cmd/clusterctl/client/config/reader_viper_test.go

@@ -41,10 +41,10 @@ func Test_viperReader_Init(t *testing.T) {
 	defer os.RemoveAll(dir)
 
 	configFile := filepath.Join(dir, "clusterctl.yaml")
-	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0640)).To(Succeed())
+	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0600)).To(Succeed())
 
 	configFileBadContents := filepath.Join(dir, "clusterctl-bad.yaml")
-	g.Expect(ioutil.WriteFile(configFileBadContents, []byte("bad-contents"), 0640)).To(Succeed())
+	g.Expect(ioutil.WriteFile(configFileBadContents, []byte("bad-contents"), 0600)).To(Succeed())
 
 	tests := []struct {
 		name       string
@@ -102,7 +102,7 @@ func Test_viperReader_Get(t *testing.T) {
 	os.Setenv("FOO", "foo")
 
 	configFile := filepath.Join(dir, "clusterctl.yaml")
-	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0640)).To(Succeed())
+	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0600)).To(Succeed())
 
 	type args struct {
 		key string
@@ -185,7 +185,7 @@ func Test_viperReader_Set(t *testing.T) {
 
 	configFile := filepath.Join(dir, "clusterctl.yaml")
 
-	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0640)).To(Succeed())
+	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0600)).To(Succeed())
 
 	type args struct {
 		key   string
@@ -230,7 +230,7 @@ func Test_viperReader_checkDefaultConfig(t *testing.T) {
 	dir = strings.TrimSuffix(dir, "/")
 
 	configFile := filepath.Join(dir, "clusterctl.yaml")
-	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0640)).To(Succeed())
+	g.Expect(ioutil.WriteFile(configFile, []byte("bar: bar"), 0600)).To(Succeed())
 
 	type fields struct {
 		configPaths []string

cmd/clusterctl/client/config_test.go

@@ -420,7 +420,7 @@ func Test_clusterctlClient_GetClusterTemplate(t *testing.T) {
 	defer os.RemoveAll(tmpDir)
 
 	path := filepath.Join(tmpDir, "cluster-template.yaml")
-	g.Expect(ioutil.WriteFile(path, rawTemplate, 0644)).To(Succeed())
+	g.Expect(ioutil.WriteFile(path, rawTemplate, 0600)).To(Succeed())
 
 	// Template on a repository & in a ConfigMap
 	configMap := &corev1.ConfigMap{

cmd/clusterctl/client/repository/repository_github.go

@@ -304,7 +304,7 @@ func (g *gitHubRepository) downloadFilesFromRelease(release *github.RepositoryRe
 		return nil, g.handleGithubErr(err, "failed to download file %q from %q release", *release.TagName, fileName)
 	}
 	if redirect != "" {
-		response, err := http.Get(redirect) //nolint:bodyclose (NB: The reader is actually closed in a defer)
+		response, err := http.Get(redirect) //nolint:bodyclose // (NB: The reader is actually closed in a defer)
 		if err != nil {
 			return nil, errors.Wrapf(err, "failed to download file %q from %q release via redirect location %q", *release.TagName, fileName, redirect)
 		}

cmd/clusterctl/client/repository/repository_local_test.go

@@ -139,7 +139,7 @@ func createLocalTestProviderFile(t *testing.T, tmpDir, path, msg string) string
 	dst := filepath.Join(tmpDir, path)
 	// Create all directories in the standard layout
 	g.Expect(os.MkdirAll(filepath.Dir(dst), 0755)).To(Succeed())
-	g.Expect(ioutil.WriteFile(dst, []byte(msg), 0644)).To(Succeed())
+	g.Expect(ioutil.WriteFile(dst, []byte(msg), 0600)).To(Succeed())
 
 	return dst
 }

cmd/clusterctl/cmd/config_repositories_test.go

@@ -35,7 +35,7 @@ func Test_runGetRepositories(t *testing.T) {
 		defer os.RemoveAll(tmpDir)
 
 		path := filepath.Join(tmpDir, "clusterctl.yaml")
-		g.Expect(ioutil.WriteFile(path, []byte(template), 0644)).To(Succeed())
+		g.Expect(ioutil.WriteFile(path, []byte(template), 0600)).To(Succeed())
 
 		buf := bytes.NewBufferString("")
 
@@ -71,7 +71,7 @@ func Test_runGetRepositories(t *testing.T) {
 		defer os.RemoveAll(tmpDir)
 
 		path := filepath.Join(tmpDir, "clusterctl.yaml")
-		g.Expect(ioutil.WriteFile(path, []byte("providers: foobar"), 0644)).To(Succeed())
+		g.Expect(ioutil.WriteFile(path, []byte("providers: foobar"), 0600)).To(Succeed())
 
 		buf := bytes.NewBufferString("")
 		g.Expect(runGetRepositories(path, buf)).ToNot(Succeed())

cmd/clusterctl/cmd/upgrade_plan.go

@@ -105,7 +105,7 @@ func runUpgradePlan() error {
 		if upgradeAvailable {
 			fmt.Println("You can now apply the upgrade by executing the following command:")
 			fmt.Println("")
-			fmt.Println(fmt.Sprintf("   upgrade apply --management-group %s --contract %s", plan.CoreProvider.InstanceName(), plan.Contract))
+			fmt.Printf("   upgrade apply --management-group %s --contract %s\n", plan.CoreProvider.InstanceName(), plan.Contract)
 		} else {
 			fmt.Println("You are already up to date!")
 		}

cmd/clusterctl/internal/util/yaml.go

@@ -55,7 +55,7 @@ func JoinYaml(yamls ...[]byte) []byte {
 
 // ToUnstructured takes a YAML and converts it to a list of Unstructured objects
 func ToUnstructured(rawyaml []byte) ([]unstructured.Unstructured, error) {
-	var ret []unstructured.Unstructured //nolint
+	var ret []unstructured.Unstructured
 
 	reader := utilyaml.NewYAMLReader(bufio.NewReader(bytes.NewReader(rawyaml)))
 	count := 1

controllers/mdutil/util.go

@@ -193,7 +193,7 @@ func getIntFromAnnotation(ms *clusterv1.MachineSet, annotationKey string, logger
 	if !ok {
 		return int32(0), false
 	}
-	intValue, err := strconv.Atoi(annotationValue)
+	intValue, err := strconv.ParseInt(annotationValue, 10, 32)
 	if err != nil {
 		logger.V(2).Info("Cannot convert the value to integer", "annotationValue", annotationValue)
 		return int32(0), false
@@ -563,7 +563,7 @@ func IsSaturated(deployment *clusterv1.MachineDeployment, ms *clusterv1.MachineS
 		return false
 	}
 	desiredString := ms.Annotations[clusterv1.DesiredReplicasAnnotation]
-	desired, err := strconv.Atoi(desiredString)
+	desired, err := strconv.ParseInt(desiredString, 10, 32)
 	if err != nil {
 		return false
 	}

controlplane/kubeadm/controllers/controller_test.go

@@ -554,7 +554,7 @@ func TestKubeadmControlPlaneReconciler_adoption(t *testing.T) {
 				"test0": &clusterv1.Machine{
 					ObjectMeta: metav1.ObjectMeta{
 						Namespace: cluster.Namespace,
-						Name:      fmt.Sprintf("test0"),
+						Name:      "test0",
 						Labels:    internal.ControlPlaneLabelsForCluster(cluster.Name),
 					},
 					Spec: clusterv1.MachineSpec{

controlplane/kubeadm/internal/machine_collection.go

@@ -47,11 +47,12 @@ func NewFilterableMachineCollection(machines ...*clusterv1.Machine) FilterableMa
 
 // NewFilterableMachineCollectionFromMachineList creates a FilterableMachineCollection from the given MachineList
 func NewFilterableMachineCollectionFromMachineList(machineList *clusterv1.MachineList) FilterableMachineCollection {
+	if machineList == nil {
+		return nil
+	}
 	ss := make(FilterableMachineCollection, len(machineList.Items))
-	if machineList != nil {
-		for i := range machineList.Items {
-			ss.Insert(&machineList.Items[i])
-		}
+	for i := range machineList.Items {
+		ss.Insert(&machineList.Items[i])
 	}
 	return ss
 }

hack/tools/go.mod

@@ -5,11 +5,12 @@ go 1.13
 require (
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/go-bindata/go-bindata v3.1.2+incompatible
-	github.com/golangci/golangci-lint v1.23.8
+	github.com/golangci/golangci-lint v1.27.0
 	github.com/joelanford/go-apidiff v0.0.0-20191206194835-106bcff5f060
-	github.com/onsi/ginkgo v1.11.0
+	github.com/onsi/ginkgo v1.12.0
 	github.com/raviqqe/liche v0.0.0-20200229003944-f57a5d1c5be4
-	golang.org/x/tools v0.0.0-20200204192400-7124308813f3
+	golang.org/x/tools v0.0.0-20200502202811-ed308ab3e770
+	honnef.co/go/tools v0.0.1-2020.1.4 // indirect
 	k8s.io/code-generator v0.18.0
 	sigs.k8s.io/controller-tools v0.2.9
 	sigs.k8s.io/kubebuilder/docs/book/utils v0.0.0-20200226075303-ed8438ec10a4