Merge 148e44b788 into 5bf273d81b

cmd/helm/template.go

@@ -79,6 +79,7 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 			client.ClientOnly = !validate
 			client.APIVersions = chartutil.VersionSet(extraAPIs)
 			client.IncludeCRDs = includeCrds
+			client.ShowFiles = showFiles
 			rel, err := runInstall(args, client, valueOpts, out)
 
 			if err != nil && !settings.Debug {
@@ -133,7 +134,7 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 					sort.Sort(releaseutil.BySplitManifestsOrder(manifestsKeys))
 
 					manifestNameRegex := regexp.MustCompile("# Source: [^/]+/(.+)")
-					var manifestsToRender []string
+					manifestsToRender := map[string]string{}
 					for _, f := range showFiles {
 						missing := true
 						// Use linux-style filepath separators to unify user's input path
@@ -157,15 +158,29 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 							if matched, _ := filepath.Match(f, manifestPath); !matched {
 								continue
 							}
-							manifestsToRender = append(manifestsToRender, manifest)
+							manifestsToRender[manifestName] = manifest
 							missing = false
 						}
 						if missing {
-							return fmt.Errorf("could not find template %s in chart", f)
+							fmt.Printf("could not find template %s in chart\n", f)
 						}
 					}
-					for _, m := range manifestsToRender {
-						fmt.Fprintf(out, "---\n%s\n", m)
+
+					for fileName, manifest := range manifestsToRender {
+						if client.OutputDir == "" {
+							fmt.Fprintf(out, "---\n%s\n", manifest)
+						} else {
+							fileWritten := make(map[string]bool)
+							newDir := client.OutputDir
+							if client.UseReleaseName {
+								newDir = filepath.Join(client.OutputDir, client.ReleaseName)
+							}
+							err = writeToFile(newDir, fileName, manifest, fileWritten[fileName])
+							if err != nil {
+								return err
+							}
+							fileWritten[fileName] = true
+						}
 					}
 				} else {
 					fmt.Fprintf(out, "%s", manifests.String())

pkg/action/action.go

@@ -101,8 +101,9 @@ type Configuration struct {
 //
 // TODO: This function is badly in need of a refactor.
 // TODO: As part of the refactor the duplicate code in cmd/helm/template.go should be removed
+//
 //	This code has to do with writing files to disk.
-func (cfg *Configuration) renderResources(ch *chart.Chart, values chartutil.Values, releaseName, outputDir string, subNotes, useReleaseName, includeCrds bool, pr postrender.PostRenderer, dryRun bool) ([]*release.Hook, *bytes.Buffer, string, error) {
+func (cfg *Configuration) renderResources(ch *chart.Chart, values chartutil.Values, releaseName, outputDir string, showFiles []string, subNotes, useReleaseName, includeCrds bool, pr postrender.PostRenderer, dryRun bool) ([]*release.Hook, *bytes.Buffer, string, error) {
 	hs := []*release.Hook{}
 	b := bytes.NewBuffer(nil)
 
@@ -183,8 +184,8 @@ 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.Name, string(crd.File.Data[:]))
+			if outputDir == "" || len(showFiles) > 0 {
+				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.Name])
 				if err != nil {
@@ -196,7 +197,7 @@ func (cfg *Configuration) renderResources(ch *chart.Chart, values chartutil.Valu
 	}
 
 	for _, m := range manifests {
-		if outputDir == "" {
+		if outputDir == "" || len(showFiles) > 0 {
 			fmt.Fprintf(b, "---\n# Source: %s\n%s\n", m.Name, m.Content)
 		} else {
 			newDir := outputDir

pkg/action/install.go

@@ -90,6 +90,8 @@ type Install struct {
 	SubNotes                 bool
 	DisableOpenAPIValidation bool
 	IncludeCRDs              bool
+	// ShowFiles allows only show manifests rendered from the given templates
+	ShowFiles []string
 	// KubeVersion allows specifying a custom kubernetes version to use and
 	// APIVersions allows a manual set of supported API Versions to be passed
 	// (for things like templating). These are ignored if ClientOnly is false
@@ -257,7 +259,7 @@ func (i *Install) RunWithContext(ctx context.Context, chrt *chart.Chart, vals ma
 	rel := i.createRelease(chrt, vals)
 
 	var manifestDoc *bytes.Buffer
-	rel.Hooks, manifestDoc, rel.Info.Notes, err = i.cfg.renderResources(chrt, valuesToRender, i.ReleaseName, i.OutputDir, i.SubNotes, i.UseReleaseName, i.IncludeCRDs, i.PostRenderer, i.DryRun)
+	rel.Hooks, manifestDoc, rel.Info.Notes, err = i.cfg.renderResources(chrt, valuesToRender, i.ReleaseName, i.OutputDir, i.ShowFiles, i.SubNotes, i.UseReleaseName, i.IncludeCRDs, i.PostRenderer, i.DryRun)
 	// Even for errors, attach this if available
 	if manifestDoc != nil {
 		rel.Manifest = manifestDoc.String()

pkg/action/upgrade.go

@@ -231,7 +231,7 @@ func (u *Upgrade) prepareUpgrade(name string, chart *chart.Chart, vals map[strin
 		return nil, nil, err
 	}
 
-	hooks, manifestDoc, notesTxt, err := u.cfg.renderResources(chart, valuesToRender, "", "", u.SubNotes, false, false, u.PostRenderer, u.DryRun)
+	hooks, manifestDoc, notesTxt, err := u.cfg.renderResources(chart, valuesToRender, "", "", []string{}, u.SubNotes, false, false, u.PostRenderer, u.DryRun)
 	if err != nil {
 		return nil, nil, err
 	}