chore: Cleanup deprecated and TODO comments

Signed-off-by: George Jenkins <gvjenkins@gmail.com>

internal/chart/v3/chart.go

@@ -141,7 +141,7 @@ func (ch *Chart) AppVersion() string {
 
 // CRDs returns a list of File objects in the 'crds/' directory of a Helm chart.
 //
-// Deprecated: use CRDObjects()
+// Deprecated: Use CRDObjects instead.
 func (ch *Chart) CRDs() []*common.File {
 	files := []*common.File{}
 	// Find all resources in the crds/ directory

internal/monocular/search.go

@@ -101,11 +101,15 @@ type ChartVersion struct {
 // Search performs a search against the monocular search API
 //
 // Deprecated: Use SearchWithContext instead.
+//
+//go:fix inline
 func (c *Client) Search(term string) ([]SearchResult, error) {
 	return c.SearchWithContext(context.Background(), term)
 }
 
 // SearchWithContext performs a search against the monocular search API
+//
+// TODO Helm v5: Rename this to Search (remove the current deprecated Search method) and 'go:fix inline' SearchWithContext method to call Search.
 func (c *Client) SearchWithContext(ctx context.Context, term string) ([]SearchResult, error) {
 	// Create the URL to the search endpoint
 	// Note, this is currently an internal API for the Hub. This should be

internal/plugin/installer/extractor.go

@@ -48,7 +48,7 @@ var Extractors = map[string]Extractor{
 
 // Convert a media type to an extractor extension.
 //
-// This should be refactored in Helm 4, combined with the extension-based mechanism.
+// TODO Helm v5: refactor this, combined with the extension-based mechanism.
 func mediaTypeToExtension(mt string) (string, bool) {
 	switch strings.ToLower(mt) {
 	case "application/gzip", "application/x-gzip", "application/x-tgz", "application/x-gtar":

internal/plugin/runtime_subprocess.go

@@ -47,7 +47,7 @@ type RuntimeConfigSubprocess struct {
 	PlatformHooks PlatformHooks `yaml:"platformHooks"`
 	// ProtocolCommands allows the plugin to specify protocol specific commands
 	//
-	// Obsolete/deprecated: This is a compatibility hangover from the old plugin downloader mechanism, which was extended
+	// Deprecated: This is an obsolete compatibility hangover from the old plugin downloader mechanism, which was extended
 	// to support multiple protocols in a given plugin. The command supplied in PlatformCommand should implement protocol
 	// specific logic by inspecting the download URL
 	ProtocolCommands []SubprocessProtocolCommand `yaml:"protocolCommands,omitempty"`

pkg/action/action.go

@@ -508,8 +508,8 @@ func (cfg *Configuration) renderResources(ctx context.Context, ch *chart.Chart,
 				newDir = filepath.Join(outputDir, releaseName)
 			}
 			// NOTE: We do not have to worry about the post-renderer because
-			// output dir is only used by `helm template`. In the next major
-			// release, we should move this logic to template only as it is not
+			// output dir is only used by `helm template`.
+			// TODO Helm v5: move this logic to template only as it is not
 			// used by install or upgrade
 			err = writeToFile(newDir, m.Name, m.Content, fileWritten[m.Name])
 			if err != nil {

pkg/action/dependency.go

@@ -77,12 +77,14 @@ func (d *Dependency) dependencyStatus(chartpath string, dep *chart.Dependency, p
 	filename := fmt.Sprintf("%s-%s.tgz", dep.Name, "*")
 
 	// If a chart is unpacked, this will check the unpacked chart's `charts/` directory for tarballs.
-	// Technically, this is COMPLETELY unnecessary, and should be removed in Helm 4. It is here
-	// to preserved backward compatibility. In Helm 2/3, there is a "difference" between
+	//
+	// Technically, this is COMPLETELY unnecessary. It is here to preserve backward
+	// compatibility. In Helm 2/3, there is a "difference" between
 	// the tgz version (which outputs "ok" if it unpacks) and the loaded version (which outputs
 	// "unpacked"). Early in Helm 2's history, this would have made a difference. But it no
-	// longer does. However, since this code shipped with Helm 3, the output must remain stable
-	// until Helm 4.
+	// longer does. However, since this code shipped with Helm 3, the output must remain stable.
+	//
+	// TODO Helm v5: remove this.
 	switch archives, err := filepath.Glob(filepath.Join(chartpath, "charts", filename)); {
 	case err != nil:
 		return "bad pattern"
@@ -156,7 +158,9 @@ func (d *Dependency) dependencyStatus(chartpath string, dep *chart.Dependency, p
 // stat an archive and return a message if the stat is successful
 //
 // This is a refactor of the code originally in dependencyStatus. It is here to
-// support legacy behavior, and should be removed in Helm 4.
+// support legacy behavior.
+//
+// TODO Helm v5: remove this.
 func statArchiveForStatus(archive string, dep *chart.Dependency) string {
 	if _, err := os.Stat(archive); err == nil {
 		c, err := loader.Load(archive)

pkg/chart/common/capabilities.go

@@ -87,7 +87,9 @@ func (kv *KubeVersion) String() string {
 
 // GitVersion returns the full Kubernetes version string.
 //
-// Deprecated: use KubeVersion.Version.
+// Deprecated: Use KubeVersion.Version.
+//
+//go:fix inline
 func (kv *KubeVersion) GitVersion() string { return kv.Version }
 
 // ParseKubeVersion parses kubernetes version from string

pkg/chart/v2/chart.go

@@ -144,7 +144,7 @@ func (ch *Chart) AppVersion() string {
 
 // CRDs returns a list of File objects in the 'crds/' directory of a Helm chart.
 //
-// Deprecated: use CRDObjects()
+// Deprecated: Use CRDObjects instead.
 func (ch *Chart) CRDs() []*common.File {
 	files := []*common.File{}
 	// Find all resources in the crds/ directory

pkg/chart/v2/loader/load.go

@@ -113,8 +113,8 @@ func LoadFiles(files []*archive.BufferedFile) (*chart.Chart, error) {
 			c.Schema = f.Data
 			c.SchemaModTime = f.ModTime
 
-		// Deprecated: requirements.yaml is deprecated use Chart.yaml.
-		// We will handle it for you because we are nice people
+		// requirements.yaml is deprecated; dependencies are declared in Chart.yaml since
+		// apiVersion v2. Handled here for backwards compatibility.
 		case f.Name == "requirements.yaml":
 			if c.Metadata == nil {
 				c.Metadata = new(chart.Metadata)
@@ -128,7 +128,8 @@ func LoadFiles(files []*archive.BufferedFile) (*chart.Chart, error) {
 			if c.Metadata.APIVersion == chart.APIVersionV1 {
 				c.Files = append(c.Files, &common.File{Name: f.Name, ModTime: f.ModTime, Data: f.Data})
 			}
-		// Deprecated: requirements.lock is deprecated use Chart.lock.
+		// requirements.lock is deprecated; use Chart.lock. Handled here for backwards
+		// compatibility.
 		case f.Name == "requirements.lock":
 			c.Lock = new(chart.Lock)
 			if err := yaml.Unmarshal(f.Data, &c.Lock); err != nil {

pkg/chart/v2/util/create.go

@@ -643,7 +643,7 @@ spec:
 
 // Stderr is an io.Writer to which error messages can be written
 //
-// In Helm 4, this will be replaced. It is needed in Helm 3 to preserve API backward
+// TODO Helm v5: replace this. It is needed in Helm 3 to preserve API backward
 // compatibility.
 var Stderr io.Writer = os.Stderr
 

pkg/chart/v2/util/save.go

@@ -183,7 +183,7 @@ func writeTarContents(out *tar.Writer, c *chart.Chart, prefix string) error {
 	}
 
 	// Save Chart.lock
-	// TODO: remove the APIVersion check when APIVersionV1 is not used anymore
+	// TODO Helm v5: remove the APIVersion check when APIVersionV1 is not used anymore
 	if c.Metadata.APIVersion == chart.APIVersionV2 {
 		if c.Lock != nil {
 			ldata, err := yaml.Marshal(c.Lock)

pkg/chart/v2/util/validate_name.go

@@ -100,8 +100,11 @@ func ValidateReleaseName(name string) error {
 // The Kubernetes documentation is here, though it is not entirely correct:
 // https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
 //
-// Deprecated: remove in Helm 4.  Name validation now uses rules defined in
-// pkg/lint/rules.validateMetadataNameFunc()
+// Deprecated: ValidateMetadataName is no longer used by Helm. Metadata name
+// validation is now performed by the lint rule validateMetadataNameFunc (see
+// pkg/chart/v2/lint/rules).
+//
+// TODO Helm v5: remove this function.
 func ValidateMetadataName(name string) error {
 	if name == "" || len(name) > maxMetadataNameLen || !validName.MatchString(name) {
 		return errInvalidKubernetesName

pkg/cmd/install.go

@@ -214,7 +214,7 @@ func addInstallFlags(cmd *cobra.Command, f *pflag.FlagSet, client *action.Instal
 
 	// For `helm template`, these notes flags are legacy, unused, and should not show in help, but
 	// must remain accepted for backwards compatibility in Helm 4. Deprecate and hide them for now
-	// TODO remove these from template command in Helm 5
+	// TODO Helm v5: remove these from template command
 	if cmd.Name() == "template" {
 		if err := cmd.Flags().MarkDeprecated("hide-notes", "this flag has no effect for 'helm template' and will be removed in Helm 5"); err != nil {
 			log.Fatal(err)

pkg/downloader/manager.go

@@ -177,10 +177,11 @@ func (m *Manager) Update() error {
 	// For the repositories Helm is not configured to know about, ensure Helm
 	// has some information about them and, when possible, the index files
 	// locally.
-	// TODO(mattfarina): Repositories should be explicitly added by end users
-	// rather than automatic. In Helm v4 require users to add repositories. They
-	// should have to add them in order to make sure they are aware of the
-	// repositories and opt-in to any locations, for security.
+	//
+	// TODO Helm v5: require users to add repositories explicitly rather than
+	// adding them automatically. They should have to add them in order to make
+	// sure they are aware of the repositories and opt-in to any locations, for
+	// security.
 	repoNames, err = m.ensureMissingRepos(repoNames, req)
 	if err != nil {
 		return err

pkg/engine/engine.go

@@ -79,6 +79,8 @@ func New(config *rest.Config) Engine {
 // bar chart during render time.
 //
 // Deprecated: Use RenderWithContext instead.
+//
+//go:fix inline
 func (e Engine) Render(chrt ci.Charter, values common.Values) (map[string]string, error) {
 	return e.RenderWithContext(context.Background(), chrt, values)
 }
@@ -102,6 +104,8 @@ func (e Engine) Render(chrt ci.Charter, values common.Values) (map[string]string
 // that section of the values will be passed into the "foo" chart. And if that
 // section contains a value named "bar", that value will be passed on to the
 // bar chart during render time.
+//
+// TODO Helm v5: Rename this to Render (remove the current deprecated Render method) and 'go:fix inline' RenderWithContext method to call Render.
 func (e Engine) RenderWithContext(ctx context.Context, chrt ci.Charter, values common.Values) (map[string]string, error) {
 	tmap := allTemplates(chrt, values)
 	return e.render(ctx, tmap)
@@ -109,28 +113,38 @@ func (e Engine) RenderWithContext(ctx context.Context, chrt ci.Charter, values c
 
 // Render takes a chart, optional values, and value overrides, and attempts to
 // render the Go templates using the default options.
+//
+// Deprecated: Instantiate an Engine and call RenderWithContext instead.
+//
+// TODO Helm v5: Replace with a NewEngine function.
+//
+//go:fix inline
 func Render(chrt ci.Charter, values common.Values) (map[string]string, error) {
-	return new(Engine).Render(chrt, values)
+	return new(Engine).RenderWithContext(context.Background(), chrt, values)
 }
 
 // RenderWithClient takes a chart, optional values, and value overrides, and attempts to
 // render the Go templates using the default options. This engine is client aware and so can have template
 // functions that interact with the client.
+//
+// TODO Helm v5: Replace with a NewEngine function that accepts a rest.Config option
 func RenderWithClient(chrt ci.Charter, values common.Values, config *rest.Config) (map[string]string, error) {
 	var clientProvider ClientProvider = clientProviderFromConfig{config}
 	return Engine{
 		clientProvider: &clientProvider,
-	}.Render(chrt, values)
+	}.RenderWithContext(context.Background(), chrt, values)
 }
 
 // RenderWithClientProvider takes a chart, optional values, and value overrides, and attempts to
 // render the Go templates using the default options. This engine is client aware and so can have template
 // functions that interact with the client.
 // This function differs from RenderWithClient in that it lets you customize the way a dynamic client is constructed.
+//
+// TODO Helm v5: Replace with a NewEngine function that accepts a ClientProvider option
 func RenderWithClientProvider(chrt ci.Charter, values common.Values, clientProvider ClientProvider) (map[string]string, error) {
 	return Engine{
 		clientProvider: &clientProvider,
-	}.Render(chrt, values)
+	}.RenderWithContext(context.Background(), chrt, values)
 }
 
 // renderable is an object that can be rendered.

pkg/kube/interface.go

@@ -73,7 +73,7 @@ type Interface interface {
 	// by "\n---\n")
 	//
 	// Validates against OpenAPI schema if validate is true.
-	// TODO Helm 4: Integrate into Build with an argument
+	// TODO Helm v5: Integrate into Build with an argument
 	BuildTable(reader io.Reader, validate bool) (ResourceList, error)
 }
 
@@ -103,7 +103,7 @@ type Waiter interface {
 // InterfaceWaitOptions defines an interface that extends Interface with
 // methods that accept wait options.
 //
-// TODO Helm 5: Remove InterfaceWaitOptions and integrate its method(s) into the Interface.
+// TODO Helm v5: Remove InterfaceWaitOptions and integrate its method(s) into the Interface.
 type InterfaceWaitOptions interface {
 	// GetWaiter gets the Kube.Waiter with options.
 	GetWaiterWithOptions(ws WaitStrategy, opts ...WaitOption) (Waiter, error)

pkg/repo/v1/index.go

@@ -151,7 +151,7 @@ func (i IndexFile) MustAdd(md *chart.Metadata, filename, baseURL, digest string)
 
 // Add adds a file to the index and logs an error.
 //
-// Deprecated: Use index.MustAdd instead.
+// Deprecated: Use IndexFile.MustAdd instead. Add logs errors; MustAdd returns them.
 func (i IndexFile) Add(md *chart.Metadata, filename, baseURL, digest string) {
 	if err := i.MustAdd(md, filename, baseURL, digest); err != nil {
 		slog.Error("skipping loading invalid entry for chart", "name", md.Name, "version", md.Version, "file", filename, "error", err)
@@ -290,21 +290,22 @@ type ChartVersion struct {
 	Removed bool      `json:"removed,omitempty"`
 	Digest  string    `json:"digest,omitempty"`
 
-	// ChecksumDeprecated is deprecated in Helm 3, and therefore ignored. Helm 3 replaced
-	// this with Digest. However, with a strict YAML parser enabled, a field must be
-	// present on the struct for backwards compatibility.
+	// Deprecated: ChecksumDeprecated is ignored (Helm 3 replaced it with Digest). It is
+	// retained only so a strict YAML parser accepts the "checksum" field for backwards
+	// compatibility; do not use it.
 	ChecksumDeprecated string `json:"checksum,omitempty"`
 
-	// EngineDeprecated is deprecated in Helm 3, and therefore ignored. However, with a strict
-	// YAML parser enabled, this field must be present.
+	// Deprecated: EngineDeprecated is ignored (removed in Helm 3). It is retained only so a
+	// strict YAML parser accepts the "engine" field for backwards compatibility; do not use it.
 	EngineDeprecated string `json:"engine,omitempty"`
 
-	// TillerVersionDeprecated is deprecated in Helm 3, and therefore ignored. However, with a strict
-	// YAML parser enabled, this field must be present.
+	// Deprecated: TillerVersionDeprecated is ignored (removed in Helm 3). It is retained only
+	// so a strict YAML parser accepts the "tillerVersion" field for backwards compatibility;
+	// do not use it.
 	TillerVersionDeprecated string `json:"tillerVersion,omitempty"`
 
-	// URLDeprecated is deprecated in Helm 3, superseded by URLs. It is ignored. However,
-	// with a strict YAML parser enabled, this must be present on the struct.
+	// Deprecated: URLDeprecated is ignored (superseded by URLs). It is retained only so a
+	// strict YAML parser accepts the "url" field for backwards compatibility; do not use it.
 	URLDeprecated string `json:"url,omitempty"`
 }