Fix linters

.golangci.yaml

@@ -1,23 +1,8 @@
 issues:
   exclude-rules:
     - linters:
-        - errcheck
-        - forbidigo
-        - gci
-        - gocritic
         - gosec
-        - misspell
-        - unparam
-        - unused
-        - nilerr
         - nilnil
-        - staticcheck
-        - dupword
-        - noctx
-        - predeclared
-        - unconvert
-        - usestdlibvars
-        - gosimple
       text: ".*"
 linters:
   # Explicitly define all enabled linters

cmd/cmd.go

@@ -21,11 +21,11 @@ import (
 	"fmt"
 	"io"
 
+	logf "github.com/cert-manager/cert-manager/pkg/logs"
 	"github.com/spf13/cobra"
 	"k8s.io/cli-runtime/pkg/genericclioptions"
 	"k8s.io/component-base/logs"
 
-	logf "github.com/cert-manager/cert-manager/pkg/logs"
 	"github.com/cert-manager/cmctl/v2/pkg/build"
 	"github.com/cert-manager/cmctl/v2/pkg/build/commands"
 )

internal/versionchecker/test/testdata/fetch.go

@@ -44,9 +44,10 @@ const dummyVersion = "v99.99.99"
 
 func main() {
 	ctx := context.Background()
+	stdOut := os.Stdout
 
 	if len(os.Args) != 3 && len(os.Args) != 4 {
-		fmt.Printf("Usage: %s <test_manifests.yaml> <max_version> [<force:bool>]\n", os.Args[0])
+		fmt.Fprintf(stdOut, "Usage: %s <test_manifests.yaml> <max_version> [<force:bool>]\n", os.Args[0])
 		os.Exit(1)
 	}
 
@@ -62,21 +63,21 @@ func main() {
 	// Read the inventory file
 	var inv Inventory
 	if err := inv.read(manifestsPath); err != nil {
-		fmt.Printf("Error reading inventory: %v\n", err)
+		fmt.Fprintf(stdOut, "Error reading inventory: %v\n", err)
 
 		inv.reset()
 	}
 
 	// If the passed version is identical to the latest version, we don't need to do anything
 	if inv.LatestVersion == maxVersion && !force {
-		fmt.Printf("Version %s is already the latest version\n", maxVersion)
+		fmt.Fprintf(stdOut, "Version %s is already the latest version\n", maxVersion)
 		os.Exit(0)
 	}
 
 	// Fetch the list of remote versions
 	remoteVersions, err := listVersions(ctx, maxVersion)
 	if err != nil {
-		fmt.Printf("Error listing versions: %v\n", err)
+		fmt.Fprintf(stdOut, "Error listing versions: %v\n", err)
 		os.Exit(1)
 	}
 
@@ -119,7 +120,7 @@ func main() {
 	}
 
 	if err := group.Wait(); err != nil {
-		fmt.Printf("Error downloading manifests: %v\n", err)
+		fmt.Fprintf(stdOut, "Error downloading manifests: %v\n", err)
 		os.Exit(1)
 	}
 
@@ -128,7 +129,7 @@ func main() {
 	for result := range results {
 		hash, err := manifestHash(result.manifest)
 		if err != nil {
-			fmt.Printf("Error hashing manifest: %v\n", err)
+			fmt.Fprintf(stdOut, "Error hashing manifest: %v\n", err)
 			os.Exit(1)
 		}
 
@@ -141,11 +142,11 @@ func main() {
 
 	// Write the inventory file
 	if err := inv.write(manifestsPath); err != nil {
-		fmt.Printf("Error writing inventory: %v\n", err)
+		fmt.Fprintf(stdOut, "Error writing inventory: %v\n", err)
 		os.Exit(1)
 	}
 
-	fmt.Printf("Updated inventory to version %s\n", maxVersion)
+	fmt.Fprintf(stdOut, "Updated inventory to version %s\n", maxVersion)
 }
 
 type Inventory struct {
@@ -272,7 +273,7 @@ func (inv *Inventory) write(manifestsPath string) error {
 
 		manifests = append(manifests, versionManifest{
 			versions: versions,
-			manifest: []byte(manifest),
+			manifest: manifest,
 		})
 	}
 
@@ -347,7 +348,7 @@ func listVersions(ctx context.Context, maxVersion string) (map[string]struct{},
 func downloadManifests(ctx context.Context, version string) ([]byte, error) {
 	url := fmt.Sprintf(downloadURL, version)
 
-	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -375,44 +376,44 @@ func cleanupManifests(manifests []byte, version string) ([]byte, error) {
 
 	decoder := yaml.NewDecoder(bytes.NewBuffer(manifests))
 	for {
-		var spec map[string]interface{}
+		var manifest map[string]interface{}
 
-		err := decoder.Decode(&spec)
+		err := decoder.Decode(&manifest)
 		if errors.Is(err, io.EOF) {
 			break
 		}
 		if err != nil {
 			return nil, fmt.Errorf("failed to decode manifest: %v", err)
 		}
-		if spec == nil {
+		if manifest == nil {
 			continue
 		}
 
-		kind, ok := spec["kind"].(string)
+		kind, ok := manifest["kind"].(string)
 		if !ok {
 			return nil, fmt.Errorf("kind is missing from manifest")
 		}
 
 		switch kind {
 		case "CustomResourceDefinition":
 			// remove all CRD schemas from yaml file
-			switch spec["spec"].(type) {
+			switch spec := manifest["spec"].(type) {
 			case map[string]interface{}:
-				spec["spec"].(map[string]interface{})["versions"] = []interface{}{}
+				spec["versions"] = []interface{}{}
 			case map[interface{}]interface{}:
-				spec["spec"].(map[interface{}]interface{})["versions"] = []interface{}{}
+				spec["versions"] = []interface{}{}
 			}
 
 			// remove status from CRD
-			delete(spec, "status")
+			delete(manifest, "status")
 
 		case "Service", "Deployment":
 			// keep only the CRD, Service and Deployment resources from yaml file
 		default:
 			continue
 		}
 
-		yamlData, err := yaml.Marshal(spec)
+		yamlData, err := yaml.Marshal(manifest)
 		if err != nil {
 			return nil, fmt.Errorf("failed to marshal manifest: %v", err)
 		}

internal/versionchecker/test/versionchecker_test.go

@@ -19,7 +19,6 @@ package versionchecker
 import (
 	"bytes"
 	"context"
-	_ "embed"
 	"errors"
 	"fmt"
 	"io"
@@ -38,6 +37,8 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 
 	"github.com/cert-manager/cmctl/v2/internal/versionchecker"
+
+	_ "embed"
 )
 
 const dummyVersion = "v99.99.99"

internal/versionchecker/versionchecker.go

@@ -46,10 +46,6 @@ type Version struct {
 	Sources map[string]string `json:"sources"`
 }
 
-func shouldReturn(err error) bool {
-	return (err == nil) || (!errors.Is(err, ErrVersionNotDetected))
-}
-
 // Interface is used to check what cert-manager version is installed
 type Interface interface {
 	Version(context.Context) (*Version, error)
@@ -127,7 +123,7 @@ func (o *VersionChecker) Version(ctx context.Context) (*Version, error) {
 		// Display both.
 		err = fmt.Errorf("%v: %v", detectionError, err)
 	} else if detectionError != nil {
-		// An error occured while trying to reduce the found versions to 1 version
+		// An error occurred while trying to reduce the found versions to 1 version
 		err = detectionError
 	}
 

main.go

@@ -23,10 +23,10 @@ import (
 	"runtime"
 	"strings"
 
+	logf "github.com/cert-manager/cert-manager/pkg/logs"
 	cmdutil "k8s.io/kubectl/pkg/cmd/util"
 	ctrl "sigs.k8s.io/controller-runtime"
 
-	logf "github.com/cert-manager/cert-manager/pkg/logs"
 	ctlcmd "github.com/cert-manager/cmctl/v2/cmd"
 	"github.com/cert-manager/cmctl/v2/internal/util"
 )

pkg/approve/approve.go

@@ -21,15 +21,15 @@ import (
 	"errors"
 	"fmt"
 
+	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
+	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
+	cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
 	"github.com/spf13/cobra"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/cli-runtime/pkg/genericclioptions"
 	"k8s.io/kubectl/pkg/util/i18n"
 	"k8s.io/kubectl/pkg/util/templates"
 
-	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
-	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
-	cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
 	"github.com/cert-manager/cmctl/v2/pkg/build"
 	"github.com/cert-manager/cmctl/v2/pkg/factory"
 )

pkg/check/api/api.go

@@ -22,15 +22,15 @@ import (
 	"fmt"
 	"time"
 
+	logf "github.com/cert-manager/cert-manager/pkg/logs"
+	"github.com/cert-manager/cert-manager/pkg/util/cmapichecker"
 	"github.com/spf13/cobra"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/cli-runtime/pkg/genericclioptions"
 	"k8s.io/kubectl/pkg/util/i18n"
 	"k8s.io/kubectl/pkg/util/templates"
 
-	logf "github.com/cert-manager/cert-manager/pkg/logs"
-	"github.com/cert-manager/cert-manager/pkg/util/cmapichecker"
 	cmcmdutil "github.com/cert-manager/cmctl/v2/internal/util"
 	"github.com/cert-manager/cmctl/v2/pkg/factory"
 )

pkg/convert/convert.go

@@ -20,9 +20,8 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/cert-manager/cert-manager/pkg/ctl"
 	logf "github.com/cert-manager/cert-manager/pkg/logs"
-	"github.com/cert-manager/cmctl/v2/pkg/build"
-
 	"github.com/spf13/cobra"
 	metainternalversion "k8s.io/apimachinery/pkg/apis/meta/internalversion"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -36,7 +35,7 @@ import (
 	"k8s.io/kubectl/pkg/util/i18n"
 	"k8s.io/kubectl/pkg/util/templates"
 
-	"github.com/cert-manager/cert-manager/pkg/ctl"
+	"github.com/cert-manager/cmctl/v2/pkg/build"
 )
 
 var (

pkg/create/certificaterequest/certificaterequest.go

@@ -24,6 +24,11 @@ import (
 	"os"
 	"time"
 
+	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
+	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
+	cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
+	"github.com/cert-manager/cert-manager/pkg/ctl"
+	"github.com/cert-manager/cert-manager/pkg/util/pki"
 	"github.com/spf13/cobra"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -34,11 +39,6 @@ import (
 	"k8s.io/kubectl/pkg/util/i18n"
 	"k8s.io/kubectl/pkg/util/templates"
 
-	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
-	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
-	cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
-	"github.com/cert-manager/cert-manager/pkg/ctl"
-	"github.com/cert-manager/cert-manager/pkg/util/pki"
 	"github.com/cert-manager/cmctl/v2/pkg/build"
 	"github.com/cert-manager/cmctl/v2/pkg/factory"
 )
@@ -249,7 +249,7 @@ func (o *Options) Run(ctx context.Context, args []string) error {
 		err = wait.PollUntilContextTimeout(ctx, time.Second, o.Timeout, false, func(ctx context.Context) (done bool, err error) {
 			req, err = o.CMClient.CertmanagerV1().CertificateRequests(req.Namespace).Get(ctx, req.Name, metav1.GetOptions{})
 			if err != nil {
-				return false, nil
+				return false, nil // nolint: nilerr // Retry and keep polling until context is cancelled
 			}
 			return apiutil.CertificateRequestHasCondition(req, cmapi.CertificateRequestCondition{
 				Type:   cmapi.CertificateRequestConditionReady,

pkg/create/certificatesigningrequest/certificatesigningrequest.go

@@ -25,7 +25,12 @@ import (
 	"strconv"
 	"time"
 
+	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
+	"github.com/cert-manager/cert-manager/pkg/apis/certmanager"
+	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
 	experimentalapi "github.com/cert-manager/cert-manager/pkg/apis/experimental/v1alpha1"
+	"github.com/cert-manager/cert-manager/pkg/ctl"
+	"github.com/cert-manager/cert-manager/pkg/util/pki"
 	"github.com/spf13/cobra"
 	certificatesv1 "k8s.io/api/certificates/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -38,11 +43,6 @@ import (
 	"k8s.io/kubectl/pkg/util/i18n"
 	"k8s.io/kubectl/pkg/util/templates"
 
-	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
-	"github.com/cert-manager/cert-manager/pkg/apis/certmanager"
-	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
-	"github.com/cert-manager/cert-manager/pkg/ctl"
-	"github.com/cert-manager/cert-manager/pkg/util/pki"
 	"github.com/cert-manager/cmctl/v2/pkg/build"
 	"github.com/cert-manager/cmctl/v2/pkg/factory"
 )

pkg/deny/deny.go

@@ -21,15 +21,15 @@ import (
 	"errors"
 	"fmt"
 
+	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
+	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
+	cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
 	"github.com/spf13/cobra"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/cli-runtime/pkg/genericclioptions"
 	"k8s.io/kubectl/pkg/util/i18n"
 	"k8s.io/kubectl/pkg/util/templates"
 
-	apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
-	cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
-	cmmeta "github.com/cert-manager/cert-manager/pkg/apis/meta/v1"
 	"github.com/cert-manager/cmctl/v2/pkg/build"
 	"github.com/cert-manager/cmctl/v2/pkg/factory"
 )

pkg/factory/factory.go

@@ -17,6 +17,7 @@ limitations under the License.
 package factory
 
 import (
+	cmclient "github.com/cert-manager/cert-manager/pkg/client/clientset/versioned"
 	"github.com/spf13/cobra"
 	"k8s.io/cli-runtime/pkg/genericclioptions"
 	"k8s.io/client-go/kubernetes"
@@ -25,8 +26,6 @@ import (
 
 	// Load all auth plugins
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
-
-	cmclient "github.com/cert-manager/cert-manager/pkg/client/clientset/versioned"
 )
 
 // Factory provides a set of clients and configurations to authenticate and
@@ -71,7 +70,9 @@ func New(cmd *cobra.Command) *Factory {
 	f.factory = util.NewFactory(kubeConfigFlags)
 
 	kubeConfigFlags.AddFlags(cmd.Flags())
-	cmd.RegisterFlagCompletionFunc("namespace", validArgsListNamespaces(f))
+	if err := cmd.RegisterFlagCompletionFunc("namespace", validArgsListNamespaces(f)); err != nil {
+		panic(err)
+	}
 
 	// Setup a PreRunE to populate the Factory. Catch the existing PreRunE command
 	// if one was defined, and execute it second.