chore: enable gocritic

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

.golangci.yml

@@ -20,6 +20,7 @@ linters:
   enable:
     - depguard
     - dupl
+    - gocritic
     - gomodguard
     - govet
     - ineffassign
@@ -58,6 +59,26 @@ linters:
     dupl:
       threshold: 400
       
+    gocritic:
+      disabled-checks:
+        - appendAssign
+        - badCall
+        - commentedOutCode
+        - deferInLoop
+        - exposedSyncMutex
+        - filepathJoin
+        - hugeParam
+        - importShadow
+        - nestingReduce
+        - ptrToRefParam
+        - rangeValCopy
+        - tooManyResultsChecker
+        - typeAssertChain
+        - unnamedResult
+        - unnecessaryDefer
+        - whyNoLint
+      enable-all: true
+
     gomodguard:
       blocked:
         modules:

internal/chart/v3/loader/directory.go

@@ -113,7 +113,8 @@ func LoadDir(dir string) (*chart.Chart, error) {
 		files = append(files, &BufferedFile{Name: n, Data: data})
 		return nil
 	}
-	if err = sympath.Walk(topdir, walk); err != nil {
+	err = sympath.Walk(topdir, walk)
+	if err != nil {
 		return c, err
 	}
 

internal/chart/v3/loader/load_test.go

@@ -363,7 +363,7 @@ func TestLoadInvalidArchive(t *testing.T) {
 
 		h := &tar.Header{
 			Name:    internalPath,
-			Mode:    0755,
+			Mode:    0o755,
 			Size:    int64(len(body)),
 			ModTime: time.Now(),
 		}

internal/chart/v3/util/chartfile.go

@@ -58,7 +58,7 @@ func SaveChartfile(filename string, cf *chart.Metadata) error {
 	if err != nil {
 		return err
 	}
-	return os.WriteFile(filename, out, 0644)
+	return os.WriteFile(filename, out, 0o644)
 }
 
 // IsChartDir validate a chart directory.

internal/chart/v3/util/coalesce.go

@@ -290,17 +290,19 @@ func coalesceTablesFullKey(printf printFn, dst, src map[string]interface{}, pref
 	// values.
 	for key, val := range src {
 		fullkey := concatPrefix(prefix, key)
-		if dv, ok := dst[key]; ok && !merge && dv == nil {
+		dv, ok := dst[key]
+		switch {
+		case ok && !merge && dv == nil:
 			delete(dst, key)
-		} else if !ok {
+		case !ok:
 			dst[key] = val
-		} else if istable(val) {
+		case istable(val):
 			if istable(dv) {
 				coalesceTablesFullKey(printf, dv.(map[string]interface{}), val.(map[string]interface{}), fullkey, merge)
 			} else {
 				printf("warning: cannot overwrite table with non table for %s (%v)", fullkey, val)
 			}
-		} else if istable(dv) && val != nil {
+		case istable(dv) && val != nil:
 			printf("warning: destination for %s is a table. Ignoring non-table value (%v)", fullkey, val)
 		}
 	}

internal/chart/v3/util/create.go

@@ -802,7 +802,7 @@ func Create(name, dir string) (string, error) {
 		}
 	}
 	// Need to add the ChartsDir explicitly as it does not contain any file OOTB
-	if err := os.MkdirAll(filepath.Join(cdir, ChartsDir), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Join(cdir, ChartsDir), 0o755); err != nil {
 		return cdir, err
 	}
 	return cdir, nil
@@ -815,10 +815,10 @@ func transform(src, replacement string) []byte {
 }
 
 func writeFile(name string, content []byte) error {
-	if err := os.MkdirAll(filepath.Dir(name), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Dir(name), 0o755); err != nil {
 		return err
 	}
-	return os.WriteFile(name, content, 0644)
+	return os.WriteFile(name, content, 0o644)
 }
 
 func validateChartName(name string) error {

internal/chart/v3/util/dependencies.go

@@ -39,7 +39,7 @@ func processDependencyConditions(reqs []*chart.Dependency, cvals Values, cpath s
 	}
 	for _, r := range reqs {
 		for c := range strings.SplitSeq(strings.TrimSpace(r.Condition), ",") {
-			if len(c) > 0 {
+			if c != "" {
 				// retrieve value
 				vv, err := cvals.PathValue(cpath + c)
 				if err == nil {

internal/chart/v3/util/expand.go

@@ -71,11 +71,11 @@ func Expand(dir string, r io.Reader) error {
 
 		// Make sure the necessary subdirs get created.
 		basedir := filepath.Dir(outpath)
-		if err := os.MkdirAll(basedir, 0755); err != nil {
+		if err := os.MkdirAll(basedir, 0o755); err != nil {
 			return err
 		}
 
-		if err := os.WriteFile(outpath, file.Data, 0644); err != nil {
+		if err := os.WriteFile(outpath, file.Data, 0o644); err != nil {
 			return err
 		}
 	}

internal/chart/v3/util/save.go

@@ -48,7 +48,7 @@ func SaveDir(c *chart.Chart, dest string) error {
 	if fi, err := os.Stat(outdir); err == nil && !fi.IsDir() {
 		return fmt.Errorf("file %s already exists and is not a directory", outdir)
 	}
-	if err := os.MkdirAll(outdir, 0755); err != nil {
+	if err := os.MkdirAll(outdir, 0o755); err != nil {
 		return err
 	}
 
@@ -114,7 +114,7 @@ func Save(c *chart.Chart, outDir string) (string, error) {
 	dir := filepath.Dir(filename)
 	if stat, err := os.Stat(dir); err != nil {
 		if errors.Is(err, fs.ErrNotExist) {
-			if err2 := os.MkdirAll(dir, 0755); err2 != nil {
+			if err2 := os.MkdirAll(dir, 0o755); err2 != nil {
 				return "", err2
 			}
 		} else {
@@ -229,7 +229,7 @@ func writeToTar(out *tar.Writer, name string, body []byte) error {
 	// TODO: Do we need to create dummy parent directory names if none exist?
 	h := &tar.Header{
 		Name:    filepath.ToSlash(name),
-		Mode:    0644,
+		Mode:    0o644,
 		Size:    int64(len(body)),
 		ModTime: time.Now(),
 	}

internal/chart/v3/util/save_test.go

@@ -251,7 +251,7 @@ func TestSaveDir(t *testing.T) {
 	tmp2 := t.TempDir()
 	c.Metadata.Name = "../ahab"
 	pth := filepath.Join(tmp2, "tmpcharts")
-	if err := os.MkdirAll(filepath.Join(pth), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Join(pth), 0o755); err != nil {
 		t.Fatal(err)
 	}
 

internal/fileutil/fileutil_test.go

@@ -29,7 +29,7 @@ func TestAtomicWriteFile(t *testing.T) {
 	testpath := filepath.Join(dir, "test")
 	stringContent := "Test content"
 	reader := bytes.NewReader([]byte(stringContent))
-	mode := os.FileMode(0644)
+	mode := os.FileMode(0o644)
 
 	err := AtomicWriteFile(testpath, reader, mode)
 	if err != nil {

internal/monocular/search.go

@@ -114,7 +114,7 @@ func (c *Client) Search(term string) ([]SearchResult, error) {
 	p.RawQuery = "q=" + url.QueryEscape(term)
 
 	// Create request
-	req, err := http.NewRequest(http.MethodGet, p.String(), nil)
+	req, err := http.NewRequest(http.MethodGet, p.String(), http.NoBody)
 	if err != nil {
 		return nil, err
 	}

internal/sympath/walk.go

@@ -70,7 +70,7 @@ func symwalk(path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
 		if err != nil {
 			return fmt.Errorf("error evaluating symlink %s: %w", path, err)
 		}
-		//This log message is to highlight a symlink that is being used within a chart, symlinks can be used for nefarious reasons.
+		// This log message is to highlight a symlink that is being used within a chart, symlinks can be used for nefarious reasons.
 		slog.Info("found symbolic link in path. Contents of linked file included and used", "path", path, "resolved", resolved)
 		if info, err = os.Lstat(resolved); err != nil {
 			return err

internal/sympath/walk_test.go

@@ -92,7 +92,7 @@ func makeTree(t *testing.T) {
 				fd.Close()
 			}
 		} else {
-			if err := os.Mkdir(path, 0770); err != nil {
+			if err := os.Mkdir(path, 0o770); err != nil {
 				t.Fatalf("makeTree: %v", err)
 			}
 		}

internal/test/test.go

@@ -49,7 +49,7 @@ func AssertGoldenString(t TestingT, actual, filename string) {
 }
 
 // AssertGoldenFile asserts that the content of the actual file matches the contents of the expected file
-func AssertGoldenFile(t TestingT, actualFileName string, expectedFilename string) {
+func AssertGoldenFile(t TestingT, actualFileName, expectedFilename string) {
 	t.Helper()
 
 	actual, err := os.ReadFile(actualFileName)
@@ -87,7 +87,7 @@ func update(filename string, in []byte) error {
 	if !*updateGolden {
 		return nil
 	}
-	return os.WriteFile(filename, normalize(in), 0666)
+	return os.WriteFile(filename, normalize(in), 0o666)
 }
 
 func normalize(in []byte) []byte {

internal/third_party/dep/fs/fs.go

@@ -192,7 +192,7 @@ func copyFile(src, dst string) (err error) {
 	}
 
 	// Check for write errors on Close
-	if err = out.Close(); err != nil {
+	if err := out.Close(); err != nil {
 		return err
 	}
 

internal/third_party/dep/fs/fs_test.go

@@ -58,12 +58,12 @@ func TestRenameWithFallback(t *testing.T) {
 	}
 
 	srcpath = filepath.Join(dir, "a")
-	if err := os.MkdirAll(srcpath, 0777); err != nil {
+	if err := os.MkdirAll(srcpath, 0o777); err != nil {
 		t.Fatal(err)
 	}
 
 	dstpath := filepath.Join(dir, "b")
-	if err := os.MkdirAll(dstpath, 0777); err != nil {
+	if err := os.MkdirAll(dstpath, 0o777); err != nil {
 		t.Fatal(err)
 	}
 
@@ -76,7 +76,7 @@ func TestCopyDir(t *testing.T) {
 	dir := t.TempDir()
 
 	srcdir := filepath.Join(dir, "src")
-	if err := os.MkdirAll(srcdir, 0755); err != nil {
+	if err := os.MkdirAll(srcdir, 0o755); err != nil {
 		t.Fatal(err)
 	}
 
@@ -93,7 +93,7 @@ func TestCopyDir(t *testing.T) {
 	for i, file := range files {
 		fn := filepath.Join(srcdir, file.path)
 		dn := filepath.Dir(fn)
-		if err := os.MkdirAll(dn, 0755); err != nil {
+		if err := os.MkdirAll(dn, 0o755); err != nil {
 			t.Fatal(err)
 		}
 
@@ -102,7 +102,7 @@ func TestCopyDir(t *testing.T) {
 			t.Fatal(err)
 		}
 
-		if _, err = fh.Write([]byte(file.contents)); err != nil {
+		if _, err = fh.WriteString(file.contents); err != nil {
 			t.Fatal(err)
 		}
 		fh.Close()
@@ -170,7 +170,7 @@ func TestCopyDirFail_SrcInaccessible(t *testing.T) {
 
 	cleanup := setupInaccessibleDir(t, func(dir string) error {
 		srcdir = filepath.Join(dir, "src")
-		return os.MkdirAll(srcdir, 0755)
+		return os.MkdirAll(srcdir, 0o755)
 	})
 	defer cleanup()
 
@@ -202,7 +202,7 @@ func TestCopyDirFail_DstInaccessible(t *testing.T) {
 	dir := t.TempDir()
 
 	srcdir = filepath.Join(dir, "src")
-	if err := os.MkdirAll(srcdir, 0755); err != nil {
+	if err := os.MkdirAll(srcdir, 0o755); err != nil {
 		t.Fatal(err)
 	}
 
@@ -247,12 +247,12 @@ func TestCopyDirFail_DstExists(t *testing.T) {
 	dir := t.TempDir()
 
 	srcdir = filepath.Join(dir, "src")
-	if err = os.MkdirAll(srcdir, 0755); err != nil {
+	if err = os.MkdirAll(srcdir, 0o755); err != nil {
 		t.Fatal(err)
 	}
 
 	dstdir = filepath.Join(dir, "dst")
-	if err = os.MkdirAll(dstdir, 0755); err != nil {
+	if err = os.MkdirAll(dstdir, 0o755); err != nil {
 		t.Fatal(err)
 	}
 
@@ -288,7 +288,7 @@ func TestCopyDirFailOpen(t *testing.T) {
 	dir := t.TempDir()
 
 	srcdir = filepath.Join(dir, "src")
-	if err := os.MkdirAll(srcdir, 0755); err != nil {
+	if err := os.MkdirAll(srcdir, 0o755); err != nil {
 		t.Fatal(err)
 	}
 
@@ -300,7 +300,7 @@ func TestCopyDirFailOpen(t *testing.T) {
 	srcf.Close()
 
 	// setup source file so that it cannot be read
-	if err = os.Chmod(srcfn, 0222); err != nil {
+	if err = os.Chmod(srcfn, 0o222); err != nil {
 		t.Fatal(err)
 	}
 
@@ -320,7 +320,7 @@ func TestCopyFile(t *testing.T) {
 	}
 
 	want := "hello world"
-	if _, err := srcf.Write([]byte(want)); err != nil {
+	if _, err := srcf.WriteString(want); err != nil {
 		t.Fatal(err)
 	}
 	srcf.Close()
@@ -433,7 +433,7 @@ func TestCopyFileFail(t *testing.T) {
 
 	cleanup := setupInaccessibleDir(t, func(dir string) error {
 		dstdir = filepath.Join(dir, "dir")
-		return os.Mkdir(dstdir, 0777)
+		return os.Mkdir(dstdir, 0o777)
 	})
 	defer cleanup()
 
@@ -463,12 +463,12 @@ func setupInaccessibleDir(t *testing.T, op func(dir string) error) func() {
 	subdir := filepath.Join(dir, "dir")
 
 	cleanup := func() {
-		if err := os.Chmod(subdir, 0777); err != nil {
+		if err := os.Chmod(subdir, 0o777); err != nil {
 			t.Error(err)
 		}
 	}
 
-	if err := os.Mkdir(subdir, 0777); err != nil {
+	if err := os.Mkdir(subdir, 0o777); err != nil {
 		cleanup()
 		t.Fatal(err)
 		return nil
@@ -480,7 +480,7 @@ func setupInaccessibleDir(t *testing.T, op func(dir string) error) func() {
 		return nil
 	}
 
-	if err := os.Chmod(subdir, 0666); err != nil {
+	if err := os.Chmod(subdir, 0o666); err != nil {
 		cleanup()
 		t.Fatal(err)
 		return nil
@@ -507,7 +507,7 @@ func TestIsDir(t *testing.T) {
 
 	cleanup := setupInaccessibleDir(t, func(dir string) error {
 		dn = filepath.Join(dir, "dir")
-		return os.Mkdir(dn, 0777)
+		return os.Mkdir(dn, 0o777)
 	})
 	defer cleanup()
 
@@ -554,7 +554,7 @@ func TestIsSymlink(t *testing.T) {
 	dir := t.TempDir()
 
 	dirPath := filepath.Join(dir, "directory")
-	if err := os.MkdirAll(dirPath, 0777); err != nil {
+	if err := os.MkdirAll(dirPath, 0o777); err != nil {
 		t.Fatal(err)
 	}
 
@@ -582,9 +582,11 @@ func TestIsSymlink(t *testing.T) {
 
 	cleanup := setupInaccessibleDir(t, func(dir string) error {
 		inaccessibleFile = filepath.Join(dir, "file")
-		if fh, err := os.Create(inaccessibleFile); err != nil {
+		fh, err := os.Create(inaccessibleFile)
+		if err != nil {
 			return err
-		} else if err = fh.Close(); err != nil {
+		}
+		if err := fh.Close(); err != nil {
 			return err
 		}
 

pkg/action/action.go

@@ -291,9 +291,9 @@ func (cfg *Configuration) renderResources(ch *chart.Chart, values chartutil.Valu
 	if includeCrds {
 		for _, crd := range ch.CRDObjects() {
 			if outputDir == "" {
-				fmt.Fprintf(b, "---\n# Source: %s\n%s\n", crd.Filename, string(crd.File.Data[:]))
+				fmt.Fprintf(b, "---\n# Source: %s\n%s\n", crd.Filename, string(crd.File.Data))
 			} else {
-				err = writeToFile(outputDir, crd.Filename, string(crd.File.Data[:]), fileWritten[crd.Filename])
+				err = writeToFile(outputDir, crd.Filename, string(crd.File.Data), fileWritten[crd.Filename])
 				if err != nil {
 					return hs, b, "", err
 				}

pkg/action/dependency_test.go

@@ -70,7 +70,7 @@ func TestDependencyStatus_Dashes(t *testing.T) {
 	dir := t.TempDir()
 
 	chartpath := filepath.Join(dir, "charts")
-	if err := os.MkdirAll(chartpath, 0700); err != nil {
+	if err := os.MkdirAll(chartpath, 0o700); err != nil {
 		t.Fatal(err)
 	}
 
@@ -104,7 +104,7 @@ func TestStatArchiveForStatus(t *testing.T) {
 	dir := t.TempDir()
 
 	chartpath := filepath.Join(dir, "charts")
-	if err := os.MkdirAll(chartpath, 0700); err != nil {
+	if err := os.MkdirAll(chartpath, 0o700); err != nil {
 		t.Fatal(err)
 	}
 

pkg/action/install.go

@@ -63,7 +63,7 @@ import (
 // since there can be filepath in front of it.
 const notesFileSuffix = "NOTES.txt"
 
-const defaultDirectoryPermission = 0755
+const defaultDirectoryPermission = 0o755
 
 // Install performs an installation operation.
 type Install struct {
@@ -427,7 +427,7 @@ func (i *Install) RunWithContext(ctx context.Context, chrt *chart.Chart, vals ma
 	return rel, err
 }
 
-func (i *Install) performInstallCtx(ctx context.Context, rel *release.Release, toBeAdopted kube.ResourceList, resources kube.ResourceList) (*release.Release, error) {
+func (i *Install) performInstallCtx(ctx context.Context, rel *release.Release, toBeAdopted, resources kube.ResourceList) (*release.Release, error) {
 	type Msg struct {
 		r *release.Release
 		e error
@@ -455,7 +455,7 @@ func (i *Install) isDryRun() bool {
 	return false
 }
 
-func (i *Install) performInstall(rel *release.Release, toBeAdopted kube.ResourceList, resources kube.ResourceList) (*release.Release, error) {
+func (i *Install) performInstall(rel *release.Release, toBeAdopted, resources kube.ResourceList) (*release.Release, error) {
 	var err error
 	// pre-install hooks
 	if !i.DisableHooks {
@@ -500,7 +500,7 @@ func (i *Install) performInstall(rel *release.Release, toBeAdopted kube.Resource
 		}
 	}
 
-	if len(i.Description) > 0 {
+	if i.Description != "" {
 		rel.SetStatus(release.StatusDeployed, i.Description)
 	} else {
 		rel.SetStatus(release.StatusDeployed, "Install complete")
@@ -621,8 +621,8 @@ func (i *Install) replaceRelease(rel *release.Release) error {
 }
 
 // write the <data> to <output-dir>/<name>. <appendData> controls if the file is created or content will be appended
-func writeToFile(outputDir string, name string, data string, appendData bool) error {
-	outfileName := strings.Join([]string{outputDir, name}, string(filepath.Separator))
+func writeToFile(outputDir, name, data string, appendData bool) error {
+	outfileName := outputDir + string(filepath.Separator) + name
 
 	err := ensureDirectoryForFile(outfileName)
 	if err != nil {
@@ -648,7 +648,7 @@ func writeToFile(outputDir string, name string, data string, appendData bool) er
 
 func createOrOpenFile(filename string, appendData bool) (*os.File, error) {
 	if appendData {
-		return os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, 0600)
+		return os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, 0o600)
 	}
 	return os.Create(filename)
 }
@@ -864,7 +864,7 @@ func (c *ChartPathOptions) LocateChart(name string, settings *cli.EnvSettings) (
 		dl.Options = append(dl.Options, getter.WithBasicAuth(c.Username, c.Password))
 	}
 
-	if err := os.MkdirAll(settings.RepositoryCache, 0755); err != nil {
+	if err := os.MkdirAll(settings.RepositoryCache, 0o755); err != nil {
 		return "", err
 	}
 

pkg/action/list.go

@@ -173,7 +173,7 @@ func (l *List) Run() ([]*release.Release, error) {
 	}
 
 	if results == nil {
-		return results, nil
+		return nil, nil
 	}
 
 	// by definition, superseded releases are never shown if

pkg/action/package.go

@@ -148,7 +148,7 @@ func (p *Package) Clearsign(filename string) error {
 		return err
 	}
 
-	return os.WriteFile(filename+".prov", []byte(sig), 0644)
+	return os.WriteFile(filename+".prov", []byte(sig), 0o644)
 }
 
 // promptUser implements provenance.PassphraseFetcher

pkg/action/package_test.go

@@ -90,7 +90,7 @@ func TestPassphraseFileFetcher_WithStdinAndMultipleFetches(t *testing.T) {
 	passphrase := "secret-from-stdin"
 
 	go func() {
-		w.Write([]byte(passphrase + "\n"))
+		w.WriteString(passphrase + "\n")
 	}()
 
 	for i := 0; i < 4; i++ {

pkg/action/pull.go

@@ -160,7 +160,7 @@ func (p *Pull) Run(chartRef string) (string, error) {
 		}
 
 		if _, err := os.Stat(udCheck); err != nil {
-			if err := os.MkdirAll(udCheck, 0755); err != nil {
+			if err := os.MkdirAll(udCheck, 0o755); err != nil {
 				return out.String(), fmt.Errorf("failed to untar (mkdir): %w", err)
 			}
 		} else {

pkg/action/push.go

@@ -90,7 +90,7 @@ func NewPushWithOpts(opts ...PushOpt) *Push {
 }
 
 // Run executes 'helm push' against the given chart archive.
-func (p *Push) Run(chartRef string, remote string) (string, error) {
+func (p *Push) Run(chartRef, remote string) (string, error) {
 	var out strings.Builder
 
 	c := uploader.ChartUploader{

pkg/action/registry_login.go

@@ -82,7 +82,7 @@ func NewRegistryLogin(cfg *Configuration) *RegistryLogin {
 }
 
 // Run executes the registry login operation
-func (a *RegistryLogin) Run(_ io.Writer, hostname string, username string, password string, opts ...RegistryLoginOpt) error {
+func (a *RegistryLogin) Run(_ io.Writer, hostname, username, password string, opts ...RegistryLoginOpt) error {
 	for _, opt := range opts {
 		if err := opt(a); err != nil {
 			return err

pkg/action/show_test.go

@@ -76,7 +76,7 @@ func TestShowNoValues(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if len(output) != 0 {
+	if output != "" {
 		t.Errorf("expected empty values buffer, got %s", output)
 	}
 }

pkg/action/uninstall.go

@@ -146,7 +146,7 @@ func (u *Uninstall) Run(name string) (*release.UninstallReleaseResponse, error)
 	}
 
 	rel.Info.Status = release.StatusUninstalled
-	if len(u.Description) > 0 {
+	if u.Description != "" {
 		rel.Info.Description = u.Description
 	} else {
 		rel.Info.Description = "Uninstallation complete"

pkg/action/upgrade.go

@@ -300,7 +300,7 @@ func (u *Upgrade) prepareUpgrade(name string, chart *chart.Chart, vals map[strin
 		Labels:   mergeCustomLabels(lastRelease.Labels, u.Labels),
 	}
 
-	if len(notesTxt) > 0 {
+	if notesTxt != "" {
 		upgradedRelease.Info.Notes = notesTxt
 	}
 	err = validateManifest(u.cfg.KubeClient, manifestDoc.Bytes(), !u.DisableOpenAPIValidation)
@@ -364,7 +364,7 @@ func (u *Upgrade) performUpgrade(ctx context.Context, originalRelease, upgradedR
 	// Run if it is a dry run
 	if u.isDryRun() {
 		slog.Debug("dry run for release", "name", upgradedRelease.Name)
-		if len(u.Description) > 0 {
+		if u.Description != "" {
 			upgradedRelease.Info.Description = u.Description
 		} else {
 			upgradedRelease.Info.Description = "Dry run complete"
@@ -414,7 +414,7 @@ func (u *Upgrade) handleContext(ctx context.Context, done chan interface{}, c ch
 		return
 	}
 }
-func (u *Upgrade) releasingUpgrade(c chan<- resultMessage, upgradedRelease *release.Release, current kube.ResourceList, target kube.ResourceList, originalRelease *release.Release) {
+func (u *Upgrade) releasingUpgrade(c chan<- resultMessage, upgradedRelease *release.Release, current, target kube.ResourceList, originalRelease *release.Release) {
 	// pre-upgrade hooks
 
 	if !u.DisableHooks {
@@ -465,7 +465,7 @@ func (u *Upgrade) releasingUpgrade(c chan<- resultMessage, upgradedRelease *rele
 	u.cfg.recordRelease(originalRelease)
 
 	upgradedRelease.Info.Status = release.StatusDeployed
-	if len(u.Description) > 0 {
+	if u.Description != "" {
 		upgradedRelease.Info.Description = u.Description
 	} else {
 		upgradedRelease.Info.Description = "Upgrade complete"

pkg/action/validate_test.go

@@ -73,7 +73,7 @@ func newMissingDeployment(name, namespace string) *resource.Info {
 	return info
 }
 
-func newDeploymentWithOwner(name, namespace string, labels map[string]string, annotations map[string]string) *resource.Info {
+func newDeploymentWithOwner(name, namespace string, labels, annotations map[string]string) *resource.Info {
 	obj := &appsv1.Deployment{
 		ObjectMeta: v1.ObjectMeta{
 			Name:        name,

pkg/chart/v2/loader/directory.go

@@ -113,7 +113,7 @@ func LoadDir(dir string) (*chart.Chart, error) {
 		files = append(files, &BufferedFile{Name: n, Data: data})
 		return nil
 	}
-	if err = sympath.Walk(topdir, walk); err != nil {
+	if err := sympath.Walk(topdir, walk); err != nil {
 		return c, err
 	}
 

pkg/chart/v2/loader/load_test.go

@@ -415,7 +415,7 @@ func TestLoadInvalidArchive(t *testing.T) {
 
 		h := &tar.Header{
 			Name:    internalPath,
-			Mode:    0755,
+			Mode:    0o755,
 			Size:    int64(len(body)),
 			ModTime: time.Now(),
 		}

pkg/chart/v2/util/chartfile.go

@@ -67,7 +67,7 @@ func SaveChartfile(filename string, cf *chart.Metadata) error {
 	if err != nil {
 		return err
 	}
-	return os.WriteFile(filename, out, 0644)
+	return os.WriteFile(filename, out, 0o644)
 }
 
 // IsChartDir validate a chart directory.

pkg/chart/v2/util/coalesce.go

@@ -290,17 +290,19 @@ func coalesceTablesFullKey(printf printFn, dst, src map[string]interface{}, pref
 	// values.
 	for key, val := range src {
 		fullkey := concatPrefix(prefix, key)
-		if dv, ok := dst[key]; ok && !merge && dv == nil {
+		dv, ok := dst[key]
+		switch {
+		case ok && !merge && dv == nil:
 			delete(dst, key)
-		} else if !ok {
+		case !ok:
 			dst[key] = val
-		} else if istable(val) {
+		case istable(val):
 			if istable(dv) {
 				coalesceTablesFullKey(printf, dv.(map[string]interface{}), val.(map[string]interface{}), fullkey, merge)
 			} else {
 				printf("warning: cannot overwrite table with non table for %s (%v)", fullkey, val)
 			}
-		} else if istable(dv) && val != nil {
+		case istable(dv) && val != nil:
 			printf("warning: destination for %s is a table. Ignoring non-table value (%v)", fullkey, val)
 		}
 	}

pkg/chart/v2/util/create.go

@@ -802,7 +802,7 @@ func Create(name, dir string) (string, error) {
 		}
 	}
 	// Need to add the ChartsDir explicitly as it does not contain any file OOTB
-	if err := os.MkdirAll(filepath.Join(cdir, ChartsDir), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Join(cdir, ChartsDir), 0o755); err != nil {
 		return cdir, err
 	}
 	return cdir, nil
@@ -815,10 +815,10 @@ func transform(src, replacement string) []byte {
 }
 
 func writeFile(name string, content []byte) error {
-	if err := os.MkdirAll(filepath.Dir(name), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Dir(name), 0o755); err != nil {
 		return err
 	}
-	return os.WriteFile(name, content, 0644)
+	return os.WriteFile(name, content, 0o644)
 }
 
 func validateChartName(name string) error {

pkg/chart/v2/util/dependencies.go

@@ -39,7 +39,7 @@ func processDependencyConditions(reqs []*chart.Dependency, cvals Values, cpath s
 	}
 	for _, r := range reqs {
 		for c := range strings.SplitSeq(strings.TrimSpace(r.Condition), ",") {
-			if len(c) > 0 {
+			if c != "" {
 				// retrieve value
 				vv, err := cvals.PathValue(cpath + c)
 				if err == nil {

pkg/chart/v2/util/expand.go

@@ -71,11 +71,11 @@ func Expand(dir string, r io.Reader) error {
 
 		// Make sure the necessary subdirs get created.
 		basedir := filepath.Dir(outpath)
-		if err := os.MkdirAll(basedir, 0755); err != nil {
+		if err := os.MkdirAll(basedir, 0o755); err != nil {
 			return err
 		}
 
-		if err := os.WriteFile(outpath, file.Data, 0644); err != nil {
+		if err := os.WriteFile(outpath, file.Data, 0o644); err != nil {
 			return err
 		}
 	}

pkg/chart/v2/util/save.go

@@ -48,7 +48,7 @@ func SaveDir(c *chart.Chart, dest string) error {
 	if fi, err := os.Stat(outdir); err == nil && !fi.IsDir() {
 		return fmt.Errorf("file %s already exists and is not a directory", outdir)
 	}
-	if err := os.MkdirAll(outdir, 0755); err != nil {
+	if err := os.MkdirAll(outdir, 0o755); err != nil {
 		return err
 	}
 
@@ -114,7 +114,7 @@ func Save(c *chart.Chart, outDir string) (string, error) {
 	dir := filepath.Dir(filename)
 	if stat, err := os.Stat(dir); err != nil {
 		if errors.Is(err, fs.ErrNotExist) {
-			if err2 := os.MkdirAll(dir, 0755); err2 != nil {
+			if err2 := os.MkdirAll(dir, 0o755); err2 != nil {
 				return "", err2
 			}
 		} else {
@@ -241,7 +241,7 @@ func writeToTar(out *tar.Writer, name string, body []byte) error {
 	// TODO: Do we need to create dummy parent directory names if none exist?
 	h := &tar.Header{
 		Name:    filepath.ToSlash(name),
-		Mode:    0644,
+		Mode:    0o644,
 		Size:    int64(len(body)),
 		ModTime: time.Now(),
 	}

pkg/chart/v2/util/save_test.go

@@ -254,7 +254,7 @@ func TestSaveDir(t *testing.T) {
 	tmp2 := t.TempDir()
 	c.Metadata.Name = "../ahab"
 	pth := filepath.Join(tmp2, "tmpcharts")
-	if err := os.MkdirAll(filepath.Join(pth), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Join(pth), 0o755); err != nil {
 		t.Fatal(err)
 	}
 

pkg/cli/values/options.go

@@ -62,7 +62,7 @@ func (opts *Options) MergeValues(p getter.Providers) (map[string]interface{}, er
 	// User specified a value via --set-json
 	for _, value := range opts.JSONValues {
 		trimmedValue := strings.TrimSpace(value)
-		if len(trimmedValue) > 0 && trimmedValue[0] == '{' {
+		if trimmedValue != "" && trimmedValue[0] == '{' {
 			// If value is JSON object format, parse it as map
 			var jsonMap map[string]interface{}
 			if err := json.Unmarshal([]byte(trimmedValue), &jsonMap); err != nil {

pkg/cli/values/options_test.go

@@ -91,7 +91,7 @@ func TestReadFile(t *testing.T) {
 				tmpDir := t.TempDir()
 				filePath := filepath.Join(tmpDir, "test.txt")
 				content := []byte("local file content")
-				err := os.WriteFile(filePath, content, 0644)
+				err := os.WriteFile(filePath, content, 0o644)
 				if err != nil {
 					t.Fatal(err)
 				}
@@ -155,7 +155,7 @@ func TestReadFile(t *testing.T) {
 				fileName := "ftp_file.txt" // Valid filename for filesystem
 				filePath := filepath.Join(tmpDir, fileName)
 				content := []byte("local fallback content")
-				err := os.WriteFile(filePath, content, 0644)
+				err := os.WriteFile(filePath, content, 0o644)
 				if err != nil {
 					t.Fatal(err)
 				}

pkg/cmd/docs.go

@@ -86,7 +86,7 @@ func (o *docsOptions) run(_ io.Writer) error {
 				base := filepath.Base(filename)
 				name := strings.TrimSuffix(base, path.Ext(base))
 				title := cases.Title(language.Und, cases.NoLower).String(strings.ReplaceAll(name, "_", " "))
-				return fmt.Sprintf("---\ntitle: \"%s\"\n---\n\n", title)
+				return fmt.Sprintf("---\ntitle: %q\n---\n\n", title)
 			}
 
 			return doc.GenMarkdownTreeCustom(o.topCmd, o.dest, hdrFunc, standardLinks)

pkg/cmd/flags.go

@@ -246,7 +246,7 @@ func (p *postRendererArgsSlice) GetSlice() []string {
 	return p.options.args
 }
 
-func compVersionFlag(chartRef string, _ string) ([]string, cobra.ShellCompDirective) {
+func compVersionFlag(chartRef, _ string) ([]string, cobra.ShellCompDirective) {
 	chartInfo := strings.Split(chartRef, "/")
 	if len(chartInfo) != 2 {
 		return nil, cobra.ShellCompDirectiveNoFileComp

pkg/cmd/get_notes.go

@@ -50,7 +50,7 @@ func newGetNotesCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 			if err != nil {
 				return err
 			}
-			if len(res.Info.Notes) > 0 {
+			if res.Info.Notes != "" {
 				fmt.Fprintf(out, "NOTES:\n%s\n", res.Info.Notes)
 			}
 			return nil

pkg/cmd/list.go

@@ -150,7 +150,7 @@ type releaseListWriter struct {
 	noColor   bool
 }
 
-func newReleaseListWriter(releases []*release.Release, timeFormat string, noHeaders bool, noColor bool) *releaseListWriter {
+func newReleaseListWriter(releases []*release.Release, timeFormat string, noHeaders, noColor bool) *releaseListWriter {
 	// Initialize the array so no results returns an empty array instead of null
 	elements := make([]releaseElement, 0, len(releases))
 	for _, r := range releases {

pkg/cmd/load_plugins.go

@@ -121,7 +121,7 @@ func processParent(cmd *cobra.Command, args []string) ([]string, error) {
 
 // This function is used to setup the environment for the plugin and then
 // call the executable specified by the parameter 'main'
-func callPluginExecutable(pluginName string, main string, argv []string, out io.Writer) error {
+func callPluginExecutable(pluginName, main string, argv []string, out io.Writer) error {
 	env := os.Environ()
 	for k, v := range settings.EnvVars() {
 		env = append(env, fmt.Sprintf("%s=%s", k, v))
@@ -203,8 +203,7 @@ type pluginCommand struct {
 // and add the dynamic completion hook to call the optional plugin.complete
 func loadCompletionForPlugin(pluginCmd *cobra.Command, plugin *plugin.Plugin) {
 	// Parse the yaml file providing the plugin's sub-commands and flags
-	cmds, err := loadFile(strings.Join(
-		[]string{plugin.Dir, pluginStaticCompletionFile}, string(filepath.Separator)))
+	cmds, err := loadFile(plugin.Dir + string(filepath.Separator) + pluginStaticCompletionFile)
 
 	if err != nil {
 		// The file could be missing or invalid.  No static completion for this plugin.
@@ -228,7 +227,7 @@ func addPluginCommands(plugin *plugin.Plugin, baseCmd *cobra.Command, cmds *plug
 		return
 	}
 
-	if len(cmds.Name) == 0 {
+	if cmds.Name == "" {
 		// Missing name for a command
 		if settings.Debug {
 			log.Output(2, fmt.Sprintf("[info] sub-command name field missing for %s", baseCmd.CommandPath()))
@@ -329,7 +328,7 @@ func pluginDynamicComp(plug *plugin.Plugin, cmd *cobra.Command, args []string, t
 	}
 
 	// We will call the dynamic completion script of the plugin
-	main := strings.Join([]string{plug.Dir, pluginDynamicCompletionExecutable}, string(filepath.Separator))
+	main := plug.Dir + string(filepath.Separator) + pluginDynamicCompletionExecutable
 
 	// We must include all sub-commands passed on the command-line.
 	// To do that, we pass-in the entire CommandPath, except the first two elements
@@ -352,7 +351,7 @@ func pluginDynamicComp(plug *plugin.Plugin, cmd *cobra.Command, args []string, t
 	var completions []string
 	for comp := range strings.SplitSeq(buf.String(), "\n") {
 		// Remove any empty lines
-		if len(comp) > 0 {
+		if comp != "" {
 			completions = append(completions, comp)
 		}
 	}

pkg/cmd/package_test.go

@@ -119,7 +119,7 @@ func TestPackage(t *testing.T) {
 			}
 
 			// This is an unfortunate byproduct of the tmpdir
-			if v, ok := tt.flags["keyring"]; ok && len(v) > 0 {
+			if v, ok := tt.flags["keyring"]; ok && v != "" {
 				tt.flags["keyring"] = filepath.Join(origDir, v)
 			}
 
@@ -147,7 +147,7 @@ func TestPackage(t *testing.T) {
 				t.Fatalf("%q: expected error %q, got %q", tt.name, tt.expect, err)
 			}
 
-			if len(tt.hasfile) > 0 {
+			if tt.hasfile != "" {
 				if fi, err := os.Stat(tt.hasfile); err != nil {
 					t.Errorf("%q: expected file %q, got err %q", tt.name, tt.hasfile, err)
 				} else if fi.Size() == 0 {

pkg/cmd/plugin.go

@@ -52,9 +52,9 @@ func runHook(p *plugin.Plugin, event string) error {
 
 	cmds := p.Metadata.PlatformHooks[event]
 	expandArgs := true
-	if len(cmds) == 0 && len(p.Metadata.Hooks) > 0 {
-		cmd := p.Metadata.Hooks[event]
-		if len(cmd) > 0 {
+	if len(cmds) == 0 && len(p.Metadata.Hooks) > 0 { //nolint:staticcheck
+		cmd := p.Metadata.Hooks[event] //nolint:staticcheck
+		if cmd != "" {
 			cmds = []plugin.PlatformCommand{{Command: "sh", Args: []string{"-c", cmd}}}
 			expandArgs = false
 		}

pkg/cmd/plugin_test.go

@@ -305,7 +305,7 @@ func checkCommand(t *testing.T, plugins []*cobra.Command, tests []staticCompleti
 		var pflags []string
 		pp.LocalFlags().VisitAll(func(flag *pflag.Flag) {
 			pflags = append(pflags, flag.Name)
-			if len(flag.Shorthand) > 0 && flag.Shorthand != flag.Name {
+			if flag.Shorthand != "" && flag.Shorthand != flag.Name {
 				pflags = append(pflags, flag.Shorthand)
 			}
 		})

pkg/cmd/pull_test.go

@@ -220,7 +220,7 @@ func TestPullCmd(t *testing.T) {
 			}
 			if tt.existDir != "" {
 				file := filepath.Join(outdir, tt.existDir)
-				err := os.Mkdir(file, 0755)
+				err := os.Mkdir(file, 0o755)
 				if err != nil {
 					t.Fatal(err)
 				}
@@ -331,7 +331,7 @@ func TestPullWithCredentialsCmd(t *testing.T) {
 			}
 			if tt.existDir != "" {
 				file := filepath.Join(outdir, tt.existDir)
-				err := os.Mkdir(file, 0755)
+				err := os.Mkdir(file, 0o755)
 				if err != nil {
 					t.Fatal(err)
 				}

pkg/cmd/registry_login.go

@@ -91,19 +91,20 @@ func newRegistryLoginCmd(cfg *action.Configuration, out io.Writer) *cobra.Comman
 }
 
 // Adapted from https://github.com/oras-project/oras
-func getUsernamePassword(usernameOpt string, passwordOpt string, passwordFromStdinOpt bool) (string, string, error) {
+func getUsernamePassword(usernameOpt, passwordOpt string, passwordFromStdinOpt bool) (string, string, error) {
 	var err error
 	username := usernameOpt
 	password := passwordOpt
 
-	if passwordFromStdinOpt {
+	switch {
+	case passwordFromStdinOpt:
 		passwordFromStdin, err := io.ReadAll(os.Stdin)
 		if err != nil {
 			return "", "", err
 		}
 		password = strings.TrimSuffix(string(passwordFromStdin), "\n")
 		password = strings.TrimSuffix(password, "\r")
-	} else if password == "" {
+	case password == "":
 		if username == "" {
 			username, err = readLine("Username: ", false)
 			if err != nil {
@@ -126,7 +127,7 @@ func getUsernamePassword(usernameOpt string, passwordOpt string, passwordFromStd
 				return "", "", errors.New("password required")
 			}
 		}
-	} else {
+	default:
 		slog.Warn("using --password via the CLI is insecure. Use --password-stdin")
 	}
 

pkg/cmd/repo_add.go

@@ -121,7 +121,7 @@ func (o *repoAddOptions) run(out io.Writer) error {
 	// Acquire a file lock for process synchronization
 	repoFileExt := filepath.Ext(o.repoFile)
 	var lockPath string
-	if len(repoFileExt) > 0 && len(repoFileExt) < len(o.repoFile) {
+	if repoFileExt != "" && len(repoFileExt) < len(o.repoFile) {
 		lockPath = strings.TrimSuffix(o.repoFile, repoFileExt) + ".lock"
 	} else {
 		lockPath = o.repoFile + ".lock"

pkg/cmd/repo_add_test.go

@@ -270,7 +270,7 @@ func TestRepoAddWithPasswordFromStdin(t *testing.T) {
 		t.Errorf("unexpected error, got '%v'", err)
 	}
 
-	if !strings.Contains(result, fmt.Sprintf("\"%s\" has been added to your repositories", testName)) {
+	if !strings.Contains(result, fmt.Sprintf("%q has been added to your repositories", testName)) {
 		t.Errorf("Repo was not successfully added. Output: %s", result)
 	}
 }

pkg/cmd/repo_remove.go

@@ -68,7 +68,7 @@ func (o *repoRemoveOptions) run(out io.Writer) error {
 		if !r.Remove(name) {
 			return fmt.Errorf("no repo named %q found", name)
 		}
-		if err := r.WriteFile(o.repoFile, 0600); err != nil {
+		if err := r.WriteFile(o.repoFile, 0o600); err != nil {
 			return err
 		}
 

pkg/cmd/repo_remove_test.go

@@ -140,7 +140,7 @@ func TestRepoRemove(t *testing.T) {
 	}
 }
 
-func createCacheFiles(rootDir string, repoName string) (cacheIndexFile string, cacheChartsFile string) {
+func createCacheFiles(rootDir, repoName string) (cacheIndexFile, cacheChartsFile string) {
 	cacheIndexFile = filepath.Join(rootDir, helmpath.CacheIndexFile(repoName))
 	mf, _ := os.Create(cacheIndexFile)
 	mf.Close()
@@ -152,7 +152,7 @@ func createCacheFiles(rootDir string, repoName string) (cacheIndexFile string, c
 	return cacheIndexFile, cacheChartsFile
 }
 
-func testCacheFiles(t *testing.T, cacheIndexFile string, cacheChartsFile string, repoName string) {
+func testCacheFiles(t *testing.T, cacheIndexFile, cacheChartsFile, repoName string) {
 	t.Helper()
 	if _, err := os.Stat(cacheIndexFile); err == nil {
 		t.Errorf("Error cache index file was not removed for repository %s", repoName)

pkg/cmd/root.go

@@ -227,7 +227,7 @@ func newRootCmdWithConfig(actionConfig *action.Configuration, out io.Writer, arg
 		cobra.CompDebugln("About to get the different kube-contexts", settings.Debug)
 
 		loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
-		if len(settings.KubeConfig) > 0 {
+		if settings.KubeConfig != "" {
 			loadingRules = &clientcmd.ClientConfigLoadingRules{ExplicitPath: settings.KubeConfig}
 		}
 		if config, err := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(

pkg/cmd/search_repo.go

@@ -194,7 +194,7 @@ func (o *searchRepoOptions) buildIndex() (*search.Index, error) {
 			continue
 		}
 
-		i.AddRepo(n, ind, o.versions || len(o.version) > 0)
+		i.AddRepo(n, ind, o.versions || o.version != "")
 	}
 	return i, nil
 }
@@ -268,7 +268,7 @@ func (r *repoSearchWriter) encodeByFormat(out io.Writer, format output.Format) e
 }
 
 // Provides the list of charts that are part of the specified repo, and that starts with 'prefix'.
-func compListChartsOfRepo(repoName string, prefix string) []string {
+func compListChartsOfRepo(repoName, prefix string) []string {
 	var charts []string
 
 	path := filepath.Join(settings.RepositoryCache, helmpath.CacheChartsFile(repoName))
@@ -361,7 +361,7 @@ func compListCharts(toComplete string, includeFiles bool) ([]string, cobra.Shell
 	// 2- If there is some input from the user (or else we will end up
 	//    listing the entire content of the current directory which will
 	//    be too many choices for the user to find the real repos)
-	if includeFiles && len(completions) > 0 && len(toComplete) > 0 {
+	if includeFiles && len(completions) > 0 && toComplete != "" {
 		if files, err := os.ReadDir("."); err == nil {
 			for _, file := range files {
 				if strings.HasPrefix(file.Name(), toComplete) {
@@ -375,22 +375,22 @@ func compListCharts(toComplete string, includeFiles bool) ([]string, cobra.Shell
 
 	// If the user didn't provide any input to completion,
 	// we provide a hint that a path can also be used
-	if includeFiles && len(toComplete) == 0 {
+	if includeFiles && toComplete == "" {
 		completions = append(completions, "./\tRelative path prefix to local chart", "/\tAbsolute path prefix to local chart")
 	}
 	cobra.CompDebugln(fmt.Sprintf("Completions after checking empty input: %v", completions), settings.Debug)
 
 	directive := cobra.ShellCompDirectiveDefault
 	if noFile {
-		directive = directive | cobra.ShellCompDirectiveNoFileComp
+		directive |= cobra.ShellCompDirectiveNoFileComp
 	}
 	if noSpace {
-		directive = directive | cobra.ShellCompDirectiveNoSpace
+		directive |= cobra.ShellCompDirectiveNoSpace
 	}
 	if !includeFiles {
 		// If we should not include files in the completions,
 		// we should disable file completion
-		directive = directive | cobra.ShellCompDirectiveNoFileComp
+		directive |= cobra.ShellCompDirectiveNoFileComp
 	}
 	return completions, directive
 }

pkg/cmd/show_test.go

@@ -73,7 +73,6 @@ func TestShowPreReleaseChart(t *testing.T) {
 				filepath.Join(outdir, "repositories.yaml"),
 				outdir,
 			)
-			//_, out, err := executeActionCommand(cmd)
 			_, _, err := executeActionCommand(cmd)
 			if err != nil {
 				if tt.fail {

pkg/cmd/status.go

@@ -220,7 +220,7 @@ func (s statusPrinter) WriteTable(out io.Writer) error {
 	}
 
 	// Hide notes from output - option in install and upgrades
-	if !s.hideNotes && len(s.release.Info.Notes) > 0 {
+	if !s.hideNotes && s.release.Info.Notes != "" {
 		_, _ = fmt.Fprintf(out, "NOTES:\n%s\n", strings.TrimSpace(s.release.Info.Notes))
 	}
 	return nil

pkg/cmd/template.go

@@ -217,8 +217,8 @@ func isTestHook(h *release.Hook) bool {
 // bug introduced by #8156. As part of the todo to refactor renderResources
 // this duplicate code should be removed. It is added here so that the API
 // surface area is as minimally impacted as possible in fixing the issue.
-func writeToFile(outputDir string, name string, data string, appendData bool) error {
-	outfileName := strings.Join([]string{outputDir, name}, string(filepath.Separator))
+func writeToFile(outputDir, name, data string, appendData bool) error {
+	outfileName := outputDir + string(filepath.Separator) + name
 
 	err := ensureDirectoryForFile(outfileName)
 	if err != nil {
@@ -244,7 +244,7 @@ func writeToFile(outputDir string, name string, data string, appendData bool) er
 
 func createOrOpenFile(filename string, appendData bool) (*os.File, error) {
 	if appendData {
-		return os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, 0600)
+		return os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, 0o600)
 	}
 	return os.Create(filename)
 }
@@ -256,5 +256,5 @@ func ensureDirectoryForFile(file string) error {
 		return err
 	}
 
-	return os.MkdirAll(baseDir, 0755)
+	return os.MkdirAll(baseDir, 0o755)
 }

pkg/downloader/chart_downloader.go

@@ -110,7 +110,7 @@ func (c *ChartDownloader) DownloadTo(ref, version, dest string) (string, *proven
 	}
 
 	destfile := filepath.Join(dest, name)
-	if err := fileutil.AtomicWriteFile(destfile, data, 0644); err != nil {
+	if err := fileutil.AtomicWriteFile(destfile, data, 0o644); err != nil {
 		return destfile, nil, err
 	}
 
@@ -126,7 +126,7 @@ func (c *ChartDownloader) DownloadTo(ref, version, dest string) (string, *proven
 			return destfile, ver, nil
 		}
 		provfile := destfile + ".prov"
-		if err := fileutil.AtomicWriteFile(provfile, body, 0644); err != nil {
+		if err := fileutil.AtomicWriteFile(provfile, body, 0o644); err != nil {
 			return destfile, nil, err
 		}
 
@@ -176,7 +176,7 @@ func (c *ChartDownloader) ResolveChartVersion(ref, version string) (*url.URL, er
 		return u, err
 	}
 
-	if u.IsAbs() && len(u.Host) > 0 && len(u.Path) > 0 {
+	if u.IsAbs() && u.Host != "" && u.Path != "" {
 		// In this case, we have to find the parent repo that contains this chart
 		// URL. And this is an unfortunate problem, as it requires actually going
 		// through each repo cache file and finding a matching URL. But basically

pkg/downloader/chart_downloader_test.go

@@ -161,7 +161,7 @@ func TestVerifyChart(t *testing.T) {
 	}
 	// The verification is tested at length in the provenance package. Here,
 	// we just want a quick sanity check that the v is not empty.
-	if len(v.FileHash) == 0 {
+	if v.FileHash == "" {
 		t.Error("Digest missing")
 	}
 }

pkg/downloader/manager.go

@@ -254,7 +254,7 @@ func (m *Manager) downloadAll(deps []*chart.Dependency) error {
 			return fmt.Errorf("%q is not a directory", destPath)
 		}
 	} else if errors.Is(err, stdfs.ErrNotExist) {
-		if err := os.MkdirAll(destPath, 0755); err != nil {
+		if err := os.MkdirAll(destPath, 0o755); err != nil {
 			return err
 		}
 	} else {
@@ -262,7 +262,7 @@ func (m *Manager) downloadAll(deps []*chart.Dependency) error {
 	}
 
 	// Prepare tmpPath
-	if err := os.MkdirAll(tmpPath, 0755); err != nil {
+	if err := os.MkdirAll(tmpPath, 0o755); err != nil {
 		return err
 	}
 	defer os.RemoveAll(tmpPath)
@@ -374,7 +374,7 @@ func (m *Manager) downloadAll(deps []*chart.Dependency) error {
 }
 
 func parseOCIRef(chartRef string) (string, string, error) {
-	refTagRegexp := regexp.MustCompile(`^(oci://[^:]+(:[0-9]{1,5})?[^:]+):(.*)$`)
+	refTagRegexp := regexp.MustCompile(`^(oci://[^:]+(:\d{1,5})?[^:]+):(.*)$`)
 	caps := refTagRegexp.FindStringSubmatch(chartRef)
 	if len(caps) != 4 {
 		return "", "", fmt.Errorf("improperly formatted oci chart reference: %s", chartRef)
@@ -761,7 +761,7 @@ func (m *Manager) findChartURL(name, version, repoURL string, repos map[string]*
 	}
 	url, err = repo.FindChartInRepoURL(repoURL, name, m.Getters, repo.WithChartVersion(version), repo.WithClientTLS(certFile, keyFile, caFile))
 	if err == nil {
-		return url, username, password, false, false, "", "", "", err
+		return url, username, password, false, false, "", "", "", nil
 	}
 	err = fmt.Errorf("chart %s not found in %s: %w", name, repoURL, err)
 	return url, username, password, false, false, "", "", "", err
@@ -865,7 +865,7 @@ func writeLock(chartpath string, lock *chart.Lock, legacyLockfile bool) error {
 		}
 	}
 
-	return os.WriteFile(dest, data, 0644)
+	return os.WriteFile(dest, data, 0o644)
 }
 
 // archive a dep chart from local directory and save it into destPath

pkg/downloader/manager_test.go

@@ -264,7 +264,7 @@ func TestDownloadAll(t *testing.T) {
 	}
 
 	// create a 'tmpcharts' directory to test #5567
-	if err := os.MkdirAll(filepath.Join(chartPath, "tmpcharts"), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Join(chartPath, "tmpcharts"), 0o755); err != nil {
 		t.Fatal(err)
 	}
 	if err := m.downloadAll([]*chart.Dependency{signDep, localDep}); err != nil {
@@ -282,10 +282,10 @@ func TestDownloadAll(t *testing.T) {
 description: A Helm chart for Kubernetes
 name: ../bad-local-subchart
 version: 0.1.0`
-	if err := os.MkdirAll(filepath.Join(chartPath, "testdata", "bad-local-subchart"), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Join(chartPath, "testdata", "bad-local-subchart"), 0o755); err != nil {
 		t.Fatal(err)
 	}
-	err = os.WriteFile(filepath.Join(chartPath, "testdata", "bad-local-subchart", "Chart.yaml"), []byte(badchartyaml), 0644)
+	err = os.WriteFile(filepath.Join(chartPath, "testdata", "bad-local-subchart", "Chart.yaml"), []byte(badchartyaml), 0o644)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -733,7 +733,7 @@ func TestWriteLock(t *testing.T) {
 	t.Run("overwrite existing lock file", func(t *testing.T) {
 		dir := t.TempDir()
 		lockfilePath := filepath.Join(dir, "Chart.lock")
-		assert.NoError(t, os.WriteFile(lockfilePath, []byte("old content"), 0644))
+		assert.NoError(t, os.WriteFile(lockfilePath, []byte("old content"), 0o644))
 
 		err = writeLock(dir, lock, false)
 		assert.NoError(t, err)
@@ -746,7 +746,7 @@ func TestWriteLock(t *testing.T) {
 	t.Run("lock file is a symlink", func(t *testing.T) {
 		dir := t.TempDir()
 		dummyFile := filepath.Join(dir, "dummy.txt")
-		assert.NoError(t, os.WriteFile(dummyFile, []byte("dummy"), 0644))
+		assert.NoError(t, os.WriteFile(dummyFile, []byte("dummy"), 0o644))
 
 		lockfilePath := filepath.Join(dir, "Chart.lock")
 		assert.NoError(t, os.Symlink(dummyFile, lockfilePath))
@@ -759,7 +759,7 @@ func TestWriteLock(t *testing.T) {
 	t.Run("chart path is not a directory", func(t *testing.T) {
 		dir := t.TempDir()
 		filePath := filepath.Join(dir, "not-a-dir")
-		assert.NoError(t, os.WriteFile(filePath, []byte("file"), 0644))
+		assert.NoError(t, os.WriteFile(filePath, []byte("file"), 0o644))
 
 		err = writeLock(filePath, lock, false)
 		assert.Error(t, err)

pkg/engine/engine.go

@@ -447,7 +447,7 @@ func (p byPathLen) Less(i, j int) bool {
 	a, b := p[i], p[j]
 	ca, cb := strings.Count(a, "/"), strings.Count(b, "/")
 	if ca == cb {
-		return strings.Compare(a, b) == -1
+		return a < b
 	}
 	return ca < cb
 }

pkg/engine/funcs_test.go

@@ -25,7 +25,7 @@ import (
 )
 
 func TestFuncs(t *testing.T) {
-	//TODO write tests for failure cases
+	// TODO write tests for failure cases
 	tests := []struct {
 		tpl, expect string
 		vars        interface{}

pkg/engine/lookup_func.go

@@ -94,7 +94,7 @@ func newLookupFunction(clientProvider ClientProvider) lookupFunc {
 }
 
 // getDynamicClientOnKind returns a dynamic client on an Unstructured type. This client can be further namespaced.
-func getDynamicClientOnKind(apiversion string, kind string, config *rest.Config) (dynamic.NamespaceableResourceInterface, bool, error) {
+func getDynamicClientOnKind(apiversion, kind string, config *rest.Config) (dynamic.NamespaceableResourceInterface, bool, error) {
 	gvk := schema.FromAPIVersionAndKind(apiversion, kind)
 	apiRes, err := getAPIResourceForGVK(gvk, config)
 	if err != nil {

pkg/getter/httpgetter.go

@@ -46,7 +46,7 @@ func (g *HTTPGetter) Get(href string, options ...Option) (*bytes.Buffer, error)
 func (g *HTTPGetter) get(href string) (*bytes.Buffer, error) {
 	// Set a helm specific user agent so that a repo server and metrics can
 	// separate helm calls from other tools interacting with repos.
-	req, err := http.NewRequest(http.MethodGet, href, nil)
+	req, err := http.NewRequest(http.MethodGet, href, http.NoBody)
 	if err != nil {
 		return nil, err
 	}

pkg/getter/httpgetter_test.go

@@ -225,7 +225,7 @@ func TestDownload(t *testing.T) {
 	// A different host is provided for the WithURL from the one used for Get
 	u2, _ := url.ParseRequestURI(crossAuthSrv.URL)
 	host := strings.Split(u2.Host, ":")
-	host[0] = host[0] + "a"
+	host[0] += "a"
 	u2.Host = strings.Join(host, ":")
 	httpgetter, err = NewHTTPGetter(
 		WithURL(u2.String()),
@@ -260,7 +260,7 @@ func TestDownload(t *testing.T) {
 	// A different host is provided for the WithURL from the one used for Get
 	u2, _ = url.ParseRequestURI(crossAuthSrv.URL)
 	host = strings.Split(u2.Host, ":")
-	host[0] = host[0] + "a"
+	host[0] += "a"
 	u2.Host = strings.Join(host, ":")
 	httpgetter, err = NewHTTPGetter(
 		WithURL(u2.String()),
@@ -520,11 +520,11 @@ func TestHTTPGetterTarDownload(t *testing.T) {
 
 		b := make([]byte, 512)
 		f.Read(b)
-		//Get the file size
+		// Get the file size
 		FileStat, _ := f.Stat()
 		FileSize := strconv.FormatInt(FileStat.Size(), 10)
 
-		//Simulating improper header values from bitbucket
+		// Simulating improper header values from bitbucket
 		w.Header().Set("Content-Type", "application/x-tar")
 		w.Header().Set("Content-Encoding", "gzip")
 		w.Header().Set("Content-Length", FileSize)
@@ -570,7 +570,7 @@ func TestHttpClientInsecureSkipVerify(t *testing.T) {
 	g.opts.keyFile = "testdata/client.key"
 	g.opts.insecureSkipVerifyTLS = true
 	transport := verifyInsecureSkipVerify(t, &g, "HTTPGetter with 2 way ssl", true)
-	if len(transport.TLSClientConfig.Certificates) <= 0 {
+	if len(transport.TLSClientConfig.Certificates) == 0 {
 		t.Fatal("transport.TLSClientConfig.Certificates is not present")
 	}
 }

pkg/getter/plugingetter.go

@@ -62,9 +62,11 @@ type pluginGetter struct {
 }
 
 func (p *pluginGetter) setupOptionsEnv(env []string) []string {
-	env = append(env, fmt.Sprintf("HELM_PLUGIN_USERNAME=%s", p.opts.username))
-	env = append(env, fmt.Sprintf("HELM_PLUGIN_PASSWORD=%s", p.opts.password))
-	env = append(env, fmt.Sprintf("HELM_PLUGIN_PASS_CREDENTIALS_ALL=%t", p.opts.passCredentialsAll))
+	env = append(env,
+		fmt.Sprintf("HELM_PLUGIN_USERNAME=%s", p.opts.username),
+		fmt.Sprintf("HELM_PLUGIN_PASSWORD=%s", p.opts.password),
+		fmt.Sprintf("HELM_PLUGIN_PASS_CREDENTIALS_ALL=%t", p.opts.passCredentialsAll),
+	)
 	return env
 }
 

pkg/kube/client.go

@@ -558,7 +558,7 @@ func getManagedFieldsManager() string {
 	}
 
 	// When no manager is set and no calling application can be found it is unknown
-	if len(os.Args[0]) == 0 {
+	if os.Args[0] == "" {
 		return "unknown"
 	}
 

pkg/kube/client_test.go

@@ -1176,10 +1176,8 @@ func TestIsReachable(t *testing.T) {
 					t.Errorf("expected error message to contain '%s', got: %v", tt.errorContains, err)
 				}
 
-			} else {
-				if err != nil {
-					t.Errorf("expected no error but got: %v", err)
-				}
+			} else if err != nil {
+				t.Errorf("expected no error but got: %v", err)
 			}
 		})
 	}

pkg/kube/ready_test.go

@@ -213,7 +213,7 @@ func Test_ReadyChecker_IsReady_Deployment(t *testing.T) {
 			wantErr:    true,
 		},
 		{
-			name: "IsReady Deployments", //TODO fix this one
+			name: "IsReady Deployments", // TODO fix this one
 			fields: fields{
 				client:        fake.NewClientset(),
 				checkJobs:     true,
@@ -1469,7 +1469,7 @@ func newReplicationController(name string, generationInSync bool) *corev1.Replic
 	}
 }
 
-func newReplicaSet(name string, replicas int, readyReplicas int, generationInSync bool) *appsv1.ReplicaSet {
+func newReplicaSet(name string, replicas, readyReplicas int, generationInSync bool) *appsv1.ReplicaSet {
 	d := newDeployment(name, replicas, 0, 0, generationInSync)
 	return &appsv1.ReplicaSet{
 		ObjectMeta: metav1.ObjectMeta{
@@ -1528,7 +1528,7 @@ func newPersistentVolumeClaim(name string, phase corev1.PersistentVolumeClaimPha
 	}
 }
 
-func newJob(name string, backoffLimit int, completions *int32, succeeded int, failed int) *batchv1.Job {
+func newJob(name string, backoffLimit int, completions *int32, succeeded, failed int) *batchv1.Job {
 	return &batchv1.Job{
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      name,

pkg/kube/roundtripper_test.go

@@ -134,7 +134,7 @@ func TestRetryingRoundTripper_RoundTrip(t *testing.T) {
 			rt := RetryingRoundTripper{
 				Wrapped: fakeRT,
 			}
-			req, _ := http.NewRequest(http.MethodGet, "http://example.com", nil)
+			req, _ := http.NewRequest(http.MethodGet, "http://example.com", http.NoBody)
 			resp, err := rt.RoundTrip(req)
 
 			if tt.expectedErr != "" {

pkg/kube/statuswait.go

@@ -141,8 +141,7 @@ func (w *statusWaiter) wait(ctx context.Context, resourceList ResourceList, sw w
 	defer cancel()
 	resources := []object.ObjMetadata{}
 	for _, resource := range resourceList {
-		switch value := AsVersioned(resource).(type) {
-		case *appsv1.Deployment:
+		if value, ok := AsVersioned(resource).(*appsv1.Deployment); ok {
 			if value.Spec.Paused {
 				continue
 			}

pkg/lint/rules/chartfile.go

@@ -160,11 +160,12 @@ func validateChartVersion(cf *chart.Metadata) error {
 
 func validateChartMaintainer(cf *chart.Metadata) error {
 	for _, maintainer := range cf.Maintainers {
-		if maintainer.Name == "" {
+		switch {
+		case maintainer.Name == "":
 			return errors.New("each maintainer requires a name")
-		} else if maintainer.Email != "" && !govalidator.IsEmail(maintainer.Email) {
+		case maintainer.Email != "" && !govalidator.IsEmail(maintainer.Email):
 			return fmt.Errorf("invalid email '%s' for maintainer '%s'", maintainer.Email, maintainer.Name)
-		} else if maintainer.URL != "" && !govalidator.IsURL(maintainer.URL) {
+		case maintainer.URL != "" && !govalidator.IsURL(maintainer.URL):
 			return fmt.Errorf("invalid url '%s' for maintainer '%s'", maintainer.URL, maintainer.Name)
 		}
 	}
@@ -202,7 +203,7 @@ func validateChartDependencies(cf *chart.Metadata) error {
 }
 
 func validateChartType(cf *chart.Metadata) error {
-	if len(cf.Type) > 0 && cf.APIVersion != chart.APIVersionV2 {
+	if cf.Type != "" && cf.APIVersion != chart.APIVersionV2 {
 		return fmt.Errorf("chart type is not valid in apiVersion '%s'. It is valid in apiVersion '%s'", cf.APIVersion, chart.APIVersionV2)
 	}
 	return nil

pkg/lint/rules/values_test.go

@@ -162,7 +162,7 @@ func TestValidateValuesFile(t *testing.T) {
 func createTestingSchema(t *testing.T, dir string) string {
 	t.Helper()
 	schemafile := filepath.Join(dir, "values.schema.json")
-	if err := os.WriteFile(schemafile, []byte(testSchema), 0700); err != nil {
+	if err := os.WriteFile(schemafile, []byte(testSchema), 0o700); err != nil {
 		t.Fatalf("Failed to write schema to tmpdir: %s", err)
 	}
 	return schemafile

pkg/plugin/installer/http_installer.go

@@ -120,7 +120,7 @@ func stripPluginName(name string) string {
 			break
 		}
 	}
-	re := regexp.MustCompile(`(.*)-[0-9]+\..*`)
+	re := regexp.MustCompile(`(.*)-\d+\..*`)
 	return re.ReplaceAllString(strippedName, `$1`)
 }
 
@@ -227,7 +227,7 @@ func (g *TarGzExtractor) Extract(buffer *bytes.Buffer, targetDir string) error {
 		return err
 	}
 
-	if err := os.MkdirAll(targetDir, 0755); err != nil {
+	if err := os.MkdirAll(targetDir, 0o755); err != nil {
 		return err
 	}
 
@@ -248,7 +248,7 @@ func (g *TarGzExtractor) Extract(buffer *bytes.Buffer, targetDir string) error {
 
 		switch header.Typeflag {
 		case tar.TypeDir:
-			if err := os.Mkdir(path, 0755); err != nil {
+			if err := os.Mkdir(path, 0o755); err != nil {
 				return err
 			}
 		case tar.TypeReg:

pkg/plugin/installer/http_installer_test.go

@@ -85,7 +85,7 @@ func TestHTTPInstaller(t *testing.T) {
 	defer srv.Close()
 	source := srv.URL + "/plugins/fake-plugin-0.0.1.tar.gz"
 
-	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0755); err != nil {
+	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0o755); err != nil {
 		t.Fatalf("Could not create %s: %s", helmpath.DataPath("plugins"), err)
 	}
 
@@ -133,7 +133,7 @@ func TestHTTPInstallerNonExistentVersion(t *testing.T) {
 	defer srv.Close()
 	source := srv.URL + "/plugins/fake-plugin-0.0.1.tar.gz"
 
-	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0755); err != nil {
+	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0o755); err != nil {
 		t.Fatalf("Could not create %s: %s", helmpath.DataPath("plugins"), err)
 	}
 
@@ -166,7 +166,7 @@ func TestHTTPInstallerUpdate(t *testing.T) {
 	source := srv.URL + "/plugins/fake-plugin-0.0.1.tar.gz"
 	ensure.HelmHome(t)
 
-	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0755); err != nil {
+	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0o755); err != nil {
 		t.Fatalf("Could not create %s: %s", helmpath.DataPath("plugins"), err)
 	}
 
@@ -211,7 +211,7 @@ func TestExtract(t *testing.T) {
 	tempDir := t.TempDir()
 
 	// Set the umask to default open permissions so we can actually test
-	oldmask := syscall.Umask(0000)
+	oldmask := syscall.Umask(0o000)
 	defer func() {
 		syscall.Umask(oldmask)
 	}()
@@ -223,8 +223,8 @@ func TestExtract(t *testing.T) {
 		Name, Body string
 		Mode       int64
 	}{
-		{"plugin.yaml", "plugin metadata", 0600},
-		{"README.md", "some text", 0777},
+		{"plugin.yaml", "plugin metadata", 0o600},
+		{"README.md", "some text", 0o777},
 	}
 	for _, file := range files {
 		hdr := &tar.Header{
@@ -280,7 +280,7 @@ func TestExtract(t *testing.T) {
 			t.Fatalf("Expected %s to exist but doesn't", pluginYAMLFullPath)
 		}
 		t.Fatal(err)
-	} else if info.Mode().Perm() != 0600 {
+	} else if info.Mode().Perm() != 0o600 {
 		t.Fatalf("Expected %s to have 0600 mode it but has %o", pluginYAMLFullPath, info.Mode().Perm())
 	}
 
@@ -290,7 +290,7 @@ func TestExtract(t *testing.T) {
 			t.Fatalf("Expected %s to exist but doesn't", readmeFullPath)
 		}
 		t.Fatal(err)
-	} else if info.Mode().Perm() != 0777 {
+	} else if info.Mode().Perm() != 0o777 {
 		t.Fatalf("Expected %s to have 0777 mode it but has %o", readmeFullPath, info.Mode().Perm())
 	}
 
@@ -343,7 +343,7 @@ func TestMediaTypeToExtension(t *testing.T) {
 		if shouldPass && ext == "" {
 			t.Errorf("Expected an extension but got empty string")
 		}
-		if !shouldPass && len(ext) != 0 {
+		if !shouldPass && ext != "" {
 			t.Error("Expected extension to be empty for unrecognized type")
 		}
 	}

pkg/plugin/installer/installer.go

@@ -43,7 +43,7 @@ type Installer interface {
 
 // Install installs a plugin.
 func Install(i Installer) error {
-	if err := os.MkdirAll(filepath.Dir(i.Path()), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Dir(i.Path()), 0o755); err != nil {
 		return err
 	}
 	if _, pathErr := os.Stat(i.Path()); !os.IsNotExist(pathErr) {

pkg/plugin/installer/local_installer_test.go

@@ -30,7 +30,7 @@ func TestLocalInstaller(t *testing.T) {
 	ensure.HelmHome(t)
 	// Make a temp dir
 	tdir := t.TempDir()
-	if err := os.WriteFile(filepath.Join(tdir, "plugin.yaml"), []byte{}, 0644); err != nil {
+	if err := os.WriteFile(filepath.Join(tdir, "plugin.yaml"), []byte{}, 0o644); err != nil {
 		t.Fatal(err)
 	}
 

pkg/plugin/installer/vcs_installer_test.go

@@ -52,7 +52,7 @@ func (r *testRepo) UpdateVersion(version string) error {
 func TestVCSInstaller(t *testing.T) {
 	ensure.HelmHome(t)
 
-	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0755); err != nil {
+	if err := os.MkdirAll(helmpath.DataPath("plugins"), 0o755); err != nil {
 		t.Fatalf("Could not create %s: %s", helmpath.DataPath("plugins"), err)
 	}
 

pkg/plugin/plugin.go

@@ -92,7 +92,7 @@ type Metadata struct {
 	// Note that command is not executed in a shell. To do so, we suggest
 	// pointing the command to a shell script.
 	//
-	// DEPRECATED: Use PlatformCommand instead. Remove in Helm 4.
+	// Deprecated: Use PlatformCommand instead. Remove in Helm 4.
 	Command string `json:"command"`
 
 	// IgnoreFlags ignores any flags passed in from Helm
@@ -126,7 +126,7 @@ type Metadata struct {
 	//
 	// Note that the command is executed in the sh shell.
 	//
-	// DEPRECATED: Use PlatformHooks instead. Remove in Helm 4.
+	// Deprecated: Use PlatformHooks instead. Remove in Helm 4.
 	Hooks Hooks
 
 	// Downloaders field is used if the plugin supply downloader mechanism
@@ -160,12 +160,12 @@ func getPlatformCommand(cmds []PlatformCommand) ([]string, []string) {
 			return strings.Split(c.Command, " "), c.Args
 		}
 
-		if (len(c.OperatingSystem) > 0 && !eq(c.OperatingSystem, runtime.GOOS)) || len(c.Architecture) > 0 {
+		if (c.OperatingSystem != "" && !eq(c.OperatingSystem, runtime.GOOS)) || c.Architecture != "" {
 			// Skip if OS is not empty and doesn't match or if arch is set as a set arch requires an OS match
 			continue
 		}
 
-		if !foundOs && len(c.OperatingSystem) > 0 && eq(c.OperatingSystem, runtime.GOOS) {
+		if !foundOs && c.OperatingSystem != "" && eq(c.OperatingSystem, runtime.GOOS) {
 			// First OS match with empty arch, can only be overridden by a direct match
 			command = strings.Split(c.Command, " ")
 			args = c.Args
@@ -235,7 +235,7 @@ func (p *Plugin) PrepareCommand(extraArgs []string) (string, []string, error) {
 	}
 
 	cmds := p.Metadata.PlatformCommand
-	if len(cmds) == 0 && len(p.Metadata.Command) > 0 {
+	if len(cmds) == 0 && p.Metadata.Command != "" {
 		cmds = []PlatformCommand{{Command: p.Metadata.Command}}
 	}
 
@@ -258,7 +258,7 @@ func validatePluginData(plug *Plugin, filepath string) error {
 	}
 	plug.Metadata.Usage = sanitizeString(plug.Metadata.Usage)
 
-	if len(plug.Metadata.PlatformCommand) > 0 && len(plug.Metadata.Command) > 0 {
+	if len(plug.Metadata.PlatformCommand) > 0 && plug.Metadata.Command != "" {
 		return fmt.Errorf("both platformCommand and command are set in %q", filepath)
 	}
 

pkg/provenance/sign_test.go

@@ -309,13 +309,15 @@ func TestVerify(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if ver, err := signer.Verify(testChartfile, testSigBlock); err != nil {
+	ver, err := signer.Verify(testChartfile, testSigBlock)
+	switch {
+	case err != nil:
 		t.Errorf("Failed to pass verify. Err: %s", err)
-	} else if len(ver.FileHash) == 0 {
+	case ver.FileHash == "":
 		t.Error("Verification is missing hash.")
-	} else if ver.SignedBy == nil {
+	case ver.SignedBy == nil:
 		t.Error("No SignedBy field")
-	} else if ver.FileName != filepath.Base(testChartfile) {
+	case ver.FileName != filepath.Base(testChartfile):
 		t.Errorf("FileName is unexpectedly %q", ver.FileName)
 	}
 

pkg/pusher/ocipusher_test.go

@@ -301,12 +301,12 @@ func TestOCIPusher_Push_ChartOperations(t *testing.T) {
 				dst.Close()
 
 				// Make the file unreadable
-				if err := os.Chmod(tempChart, 0000); err != nil {
+				if err := os.Chmod(tempChart, 0o000); err != nil {
 					t.Fatal(err)
 				}
 
 				return tempChart, func() {
-					os.Chmod(tempChart, 0644) // Restore permissions for cleanup
+					os.Chmod(tempChart, 0o644) // Restore permissions for cleanup
 				}
 			},
 			href:          "oci://localhost:5000/test",
@@ -342,7 +342,7 @@ func TestOCIPusher_Push_ChartOperations(t *testing.T) {
 				dst.Close()
 
 				// Create provenance file
-				if err := os.WriteFile(tempProv, []byte("test provenance data"), 0644); err != nil {
+				if err := os.WriteFile(tempProv, []byte("test provenance data"), 0o644); err != nil {
 					t.Fatal(err)
 				}
 
@@ -384,10 +384,8 @@ func TestOCIPusher_Push_ChartOperations(t *testing.T) {
 				if tt.errorContains != "" && !strings.Contains(err.Error(), tt.errorContains) {
 					t.Errorf("Expected error containing %q, got %q", tt.errorContains, err.Error())
 				}
-			} else {
-				if err != nil {
-					t.Fatalf("Unexpected error: %v", err)
-				}
+			} else if err != nil {
+				t.Fatalf("Unexpected error: %v", err)
 			}
 		})
 	}

pkg/registry/client.go

@@ -253,7 +253,7 @@ func (c *Client) Login(host string, options ...LoginOption) error {
 }
 
 // LoginOptBasicAuth returns a function that sets the username/password settings on login
-func LoginOptBasicAuth(username string, password string) LoginOption {
+func LoginOptBasicAuth(username, password string) LoginOption {
 	return func(o *loginOperation) {
 		o.client.username = username
 		o.client.password = password
@@ -279,8 +279,7 @@ func ensureTLSConfig(client *auth.Client) (*tls.Config, error) {
 		case *http.Transport:
 			transport = t
 		case *LoggingTransport:
-			switch t := t.RoundTripper.(type) {
-			case *http.Transport:
+			if t, ok := t.RoundTripper.(*http.Transport); ok {
 				transport = t
 			}
 		}
@@ -820,10 +819,8 @@ func (c *Client) ValidateReference(ref, version string, u *url.URL) (*url.URL, e
 	if version == "" {
 		// Use OCI URI tag as default
 		version = registryReference.Tag
-	} else {
-		if registryReference.Tag != "" && registryReference.Tag != version {
-			return nil, fmt.Errorf("chart reference and version mismatch: %s is not %s", version, registryReference.Tag)
-		}
+	} else if registryReference.Tag != "" && registryReference.Tag != version {
+		return nil, fmt.Errorf("chart reference and version mismatch: %s is not %s", version, registryReference.Tag)
 	}
 
 	if registryReference.Digest != "" {

pkg/registry/transport.go

@@ -83,11 +83,12 @@ func (t *LoggingTransport) RoundTrip(req *http.Request) (resp *http.Response, er
 
 	slog.Debug(req.Method, "id", id, "url", req.URL, "header", logHeader(req.Header))
 	resp, err = t.RoundTripper.RoundTrip(req)
-	if err != nil {
+	switch {
+	case err != nil:
 		slog.Debug("Response"[:len(req.Method)], "id", id, "error", err)
-	} else if resp != nil {
+	case resp != nil:
 		slog.Debug("Response"[:len(req.Method)], "id", id, "status", resp.Status, "header", logHeader(resp.Header), "body", logResponseBody(resp))
-	} else {
+	default:
 		slog.Debug("Response"[:len(req.Method)], "id", id, "response", "nil")
 	}
 
@@ -142,7 +143,7 @@ func logResponseBody(resp *http.Response) string {
 	}
 
 	readBody := buf.String()
-	if len(readBody) == 0 {
+	if readBody == "" {
 		return "   Response body is empty"
 	}
 	if containsCredentials(readBody) {

pkg/registry/util.go

@@ -156,7 +156,7 @@ func generateChartOCIAnnotations(meta *chart.Metadata, creationTime string) map[
 	chartOCIAnnotations = addToMap(chartOCIAnnotations, ocispec.AnnotationVersion, meta.Version)
 	chartOCIAnnotations = addToMap(chartOCIAnnotations, ocispec.AnnotationURL, meta.Home)
 
-	if len(creationTime) == 0 {
+	if creationTime == "" {
 		creationTime = helmtime.Now().UTC().Format(time.RFC3339)
 	}
 
@@ -171,11 +171,11 @@ func generateChartOCIAnnotations(meta *chart.Metadata, creationTime string) map[
 
 		for maintainerIdx, maintainer := range meta.Maintainers {
 
-			if len(maintainer.Name) > 0 {
+			if maintainer.Name != "" {
 				maintainerSb.WriteString(maintainer.Name)
 			}
 
-			if len(maintainer.Email) > 0 {
+			if maintainer.Email != "" {
 				maintainerSb.WriteString(" (")
 				maintainerSb.WriteString(maintainer.Email)
 				maintainerSb.WriteString(")")
@@ -195,10 +195,10 @@ func generateChartOCIAnnotations(meta *chart.Metadata, creationTime string) map[
 }
 
 // addToMap takes an existing map and adds an item if the value is not empty
-func addToMap(inputMap map[string]string, newKey string, newValue string) map[string]string {
+func addToMap(inputMap map[string]string, newKey, newValue string) map[string]string {
 
 	// Add item to map if its
-	if len(strings.TrimSpace(newValue)) > 0 {
+	if strings.TrimSpace(newValue) != "" {
 		inputMap[newKey] = newValue
 	}
 

pkg/registry/utils_test.go

@@ -73,7 +73,7 @@ type TestSuite struct {
 func setup(suite *TestSuite, tlsEnabled, insecure bool) *registry.Registry {
 	suite.WorkspaceDir = testWorkspaceDir
 	os.RemoveAll(suite.WorkspaceDir)
-	os.Mkdir(suite.WorkspaceDir, 0700)
+	os.Mkdir(suite.WorkspaceDir, 0o700)
 
 	var (
 		out bytes.Buffer
@@ -121,7 +121,7 @@ func setup(suite *TestSuite, tlsEnabled, insecure bool) *registry.Registry {
 	pwBytes, err := bcrypt.GenerateFromPassword([]byte(testPassword), bcrypt.DefaultCost)
 	suite.Nil(err, "no error generating bcrypt password for test htpasswd file")
 	htpasswdPath := filepath.Join(suite.WorkspaceDir, testHtpasswdFileBasename)
-	err = os.WriteFile(htpasswdPath, []byte(fmt.Sprintf("%s:%s\n", testUsername, string(pwBytes))), 0644)
+	err = os.WriteFile(htpasswdPath, []byte(fmt.Sprintf("%s:%s\n", testUsername, string(pwBytes))), 0o644)
 	suite.Nil(err, "no error creating test htpasswd file")
 
 	// Registry config
@@ -185,7 +185,8 @@ func teardown(suite *TestSuite) {
 
 func initCompromisedRegistryTestServer() string {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if strings.Contains(r.URL.Path, "manifests") {
+		switch {
+		case strings.Contains(r.URL.Path, "manifests"):
 			w.Header().Set("Content-Type", "application/vnd.oci.image.manifest.v1+json")
 			w.WriteHeader(http.StatusOK)
 
@@ -202,17 +203,17 @@ func initCompromisedRegistryTestServer() string {
     }
   ]
 }`, ConfigMediaType, ChartLayerMediaType)
-		} else if r.URL.Path == "/v2/testrepo/supposedlysafechart/blobs/sha256:a705ee2789ab50a5ba20930f246dbd5cc01ff9712825bb98f57ee8414377f133" {
+		case r.URL.Path == "/v2/testrepo/supposedlysafechart/blobs/sha256:a705ee2789ab50a5ba20930f246dbd5cc01ff9712825bb98f57ee8414377f133":
 			w.Header().Set("Content-Type", "application/json")
 			w.WriteHeader(http.StatusOK)
 			w.Write([]byte("{\"name\":\"mychart\",\"version\":\"0.1.0\",\"description\":\"A Helm chart for Kubernetes\\n" +
 				"an 'application' or a 'library' chart.\",\"apiVersion\":\"v2\",\"appVersion\":\"1.16.0\",\"type\":" +
 				"\"application\"}"))
-		} else if r.URL.Path == "/v2/testrepo/supposedlysafechart/blobs/sha256:ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb" {
+		case r.URL.Path == "/v2/testrepo/supposedlysafechart/blobs/sha256:ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb":
 			w.Header().Set("Content-Type", ChartLayerMediaType)
 			w.WriteHeader(http.StatusOK)
 			w.Write([]byte("b"))
-		} else {
+		default:
 			w.WriteHeader(http.StatusInternalServerError)
 		}
 	}))

pkg/release/util/kind_sorter.go

@@ -137,7 +137,7 @@ func sortHooksByKind(hooks []*release.Hook, ordering KindSortOrder) []*release.H
 	return h
 }
 
-func lessByKind(_ interface{}, _ interface{}, kindA string, kindB string, o KindSortOrder) bool {
+func lessByKind(_, _ interface{}, kindA, kindB string, o KindSortOrder) bool {
 	ordering := make(map[string]int, len(o))
 	for v, k := range o {
 		ordering[k] = v

pkg/release/util/manifest.go

@@ -54,7 +54,7 @@ func SplitManifests(bigFile string) map[string]string {
 
 		d = strings.TrimSpace(d)
 		res[fmt.Sprintf(tpl, count)] = d
-		count = count + 1
+		count++
 	}
 	return res
 }

pkg/repo/chartrepo.go

@@ -107,13 +107,13 @@ func (r *ChartRepository) DownloadIndexFile() (string, error) {
 		fmt.Fprintln(&charts, name)
 	}
 	chartsFile := filepath.Join(r.CachePath, helmpath.CacheChartsFile(r.Config.Name))
-	os.MkdirAll(filepath.Dir(chartsFile), 0755)
-	os.WriteFile(chartsFile, []byte(charts.String()), 0644)
+	os.MkdirAll(filepath.Dir(chartsFile), 0o755)
+	os.WriteFile(chartsFile, []byte(charts.String()), 0o644)
 
 	// Create the index file in the cache directory
 	fname := filepath.Join(r.CachePath, helmpath.CacheIndexFile(r.Config.Name))
-	os.MkdirAll(filepath.Dir(fname), 0755)
-	return fname, os.WriteFile(fname, index, 0644)
+	os.MkdirAll(filepath.Dir(fname), 0o755)
+	return fname, os.WriteFile(fname, index, 0o644)
 }
 
 type findChartInRepoURLOptions struct {
@@ -169,7 +169,7 @@ func WithInsecureSkipTLSverify(insecureSkipTLSverify bool) FindChartInRepoURLOpt
 
 // FindChartInRepoURL finds chart in chart repository pointed by repoURL
 // without adding repo to repositories
-func FindChartInRepoURL(repoURL string, chartName string, getters getter.Providers, options ...FindChartInRepoURLOption) (string, error) {
+func FindChartInRepoURL(repoURL, chartName string, getters getter.Providers, options ...FindChartInRepoURLOption) (string, error) {
 
 	opts := findChartInRepoURLOptions{}
 	for _, option := range options {

pkg/repo/index.go

@@ -200,7 +200,7 @@ func (i IndexFile) Get(name, version string) (*ChartVersion, error) {
 	}
 
 	// when customer inputs specific version, check whether there's an exact match first
-	if len(version) != 0 {
+	if version != "" {
 		for _, ver := range vs {
 			if version == ver.Version {
 				return ver, nil
@@ -365,7 +365,8 @@ func loadIndex(data []byte, source string) (*IndexFile, error) {
 			if cvs[idx].APIVersion == "" {
 				cvs[idx].APIVersion = chart.APIVersionV1
 			}
-			if err := cvs[idx].Validate(); ignoreSkippableChartValidationError(err) != nil {
+			err := cvs[idx].Validate()
+			if ignoreSkippableChartValidationError(err) != nil {
 				slog.Warn("skipping loading invalid entry for chart %q %q from %s: %s", name, cvs[idx].Version, source, err)
 				cvs = append(cvs[:idx], cvs[idx+1:]...)
 			}

pkg/repo/index_test.go

@@ -550,7 +550,7 @@ func TestIndexWrite(t *testing.T) {
 	}
 	dir := t.TempDir()
 	testpath := filepath.Join(dir, "test")
-	i.WriteFile(testpath, 0600)
+	i.WriteFile(testpath, 0o600)
 
 	got, err := os.ReadFile(testpath)
 	if err != nil {
@@ -568,7 +568,7 @@ func TestIndexJSONWrite(t *testing.T) {
 	}
 	dir := t.TempDir()
 	testpath := filepath.Join(dir, "test")
-	i.WriteJSONFile(testpath, 0600)
+	i.WriteJSONFile(testpath, 0o600)
 
 	got, err := os.ReadFile(testpath)
 	if err != nil {

pkg/repo/repo.go

@@ -118,7 +118,7 @@ func (r *File) WriteFile(path string, perm os.FileMode) error {
 	if err != nil {
 		return err
 	}
-	if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
 		return err
 	}
 	return os.WriteFile(path, data, perm)

pkg/repo/repo_test.go

@@ -202,7 +202,7 @@ func TestWriteFile(t *testing.T) {
 		t.Errorf("failed to create test-file (%v)", err)
 	}
 	defer os.Remove(file.Name())
-	if err := sampleRepository.WriteFile(file.Name(), 0600); err != nil {
+	if err := sampleRepository.WriteFile(file.Name(), 0o600); err != nil {
 		t.Errorf("failed to write file (%v)", err)
 	}
 

pkg/repo/repotest/tlsconfig.go

@@ -35,7 +35,6 @@ func MakeTestTLSConfig(t *testing.T, path string) *tls.Config {
 		tlsutil.WithCertKeyPairFiles(pub, priv),
 		tlsutil.WithCAFile(ca),
 	)
-	//require.Nil(t, err, err.Error())
 	require.Nil(t, err)
 
 	tlsConf.ServerName = "helm.sh"

pkg/storage/driver/cfgmaps.go

@@ -211,7 +211,7 @@ func (cfgmaps *ConfigMaps) Delete(key string) (rls *rspb.Release, err error) {
 		return nil, err
 	}
 	// delete the release
-	if err = cfgmaps.impl.Delete(context.Background(), key, metav1.DeleteOptions{}); err != nil {
+	if err := cfgmaps.impl.Delete(context.Background(), key, metav1.DeleteOptions{}); err != nil {
 		return rls, err
 	}
 	return rls, nil

pkg/storage/driver/sql.go

@@ -276,7 +276,7 @@ type SQLReleaseCustomLabelWrapper struct {
 }
 
 // NewSQL initializes a new sql driver.
-func NewSQL(connectionString string, namespace string) (*SQL, error) {
+func NewSQL(connectionString, namespace string) (*SQL, error) {
 	db, err := sqlx.Connect(postgreSQLDialect, connectionString)
 	if err != nil {
 		return nil, err
@@ -659,7 +659,7 @@ func (s *SQL) Delete(key string) (*rspb.Release, error) {
 }
 
 // Get release custom labels from database
-func (s *SQL) getReleaseCustomLabels(key string, _ string) (map[string]string, error) {
+func (s *SQL) getReleaseCustomLabels(key, _ string) (map[string]string, error) {
 	query, args, err := s.statementBuilder.
 		Select(sqlCustomLabelsTableKeyColumn, sqlCustomLabelsTableValueColumn).
 		From(sqlCustomLabelsTableName).

pkg/storage/driver/sql_test.go

@@ -81,12 +81,14 @@ func TestSQLGet(t *testing.T) {
 
 func TestSQLList(t *testing.T) {
 	releases := []*rspb.Release{}
-	releases = append(releases, releaseStub("key-1", 1, "default", rspb.StatusUninstalled))
-	releases = append(releases, releaseStub("key-2", 1, "default", rspb.StatusUninstalled))
-	releases = append(releases, releaseStub("key-3", 1, "default", rspb.StatusDeployed))
-	releases = append(releases, releaseStub("key-4", 1, "default", rspb.StatusDeployed))
-	releases = append(releases, releaseStub("key-5", 1, "default", rspb.StatusSuperseded))
-	releases = append(releases, releaseStub("key-6", 1, "default", rspb.StatusSuperseded))
+	releases = append(releases,
+		releaseStub("key-1", 1, "default", rspb.StatusUninstalled),
+		releaseStub("key-2", 1, "default", rspb.StatusUninstalled),
+		releaseStub("key-3", 1, "default", rspb.StatusDeployed),
+		releaseStub("key-4", 1, "default", rspb.StatusDeployed),
+		releaseStub("key-5", 1, "default", rspb.StatusSuperseded),
+		releaseStub("key-6", 1, "default", rspb.StatusSuperseded),
+	)
 
 	sqlDriver, mock := newTestFixtureSQL(t)
 
@@ -520,7 +522,7 @@ func TestSqlDelete(t *testing.T) {
 	}
 }
 
-func mockGetReleaseCustomLabels(mock sqlmock.Sqlmock, key string, namespace string, labels map[string]string) {
+func mockGetReleaseCustomLabels(mock sqlmock.Sqlmock, key, namespace string, labels map[string]string) {
 	query := fmt.Sprintf(
 		regexp.QuoteMeta("SELECT %s, %s FROM %s WHERE %s = $1 AND %s = $2"),
 		sqlCustomLabelsTableKeyColumn,