Restores some of the bits of cmd/helm/lint.go we lost along the way

cmd/helm/lint.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"fmt"
+	"helm.sh/helm/v3/pkg/lint/support"
 	"io"
 	"os"
 	"path/filepath"
@@ -58,6 +59,7 @@ func newLintCmd(out io.Writer) *cobra.Command {
 			if len(args) > 0 {
 				paths = args
 			}
+
 			if kubeVersion != "" {
 				parsedKubeVersion, err := chartutil.ParseKubeVersion(kubeVersion)
 				if err != nil {
@@ -65,6 +67,7 @@ func newLintCmd(out io.Writer) *cobra.Command {
 				}
 				client.KubeVersion = parsedKubeVersion
 			}
+
 			if client.WithSubcharts {
 				for _, p := range paths {
 					filepath.Walk(filepath.Join(p, "charts"), func(path string, info os.FileInfo, _ error) error {
@@ -79,40 +82,75 @@ func newLintCmd(out io.Writer) *cobra.Command {
 					})
 				}
 			}
+
 			client.Namespace = settings.Namespace()
 			vals, err := valueOpts.MergeValues(getter.All(settings))
 			if err != nil {
 				return err
 			}
+
 			var ignorePatterns map[string][]string
 			if lintIgnoreFile != "" {
 				debug("\nUsing ignore file: %s\n", lintIgnoreFile)
 				ignorePatterns, err = rules.ParseIgnoreFile(lintIgnoreFile)
 			}
+
 			var message strings.Builder
 			failed := 0
+			errorsOrWarnings := 0
+
 			for _, path := range paths {
-				fmt.Fprintf(&message, "==> Linting %s\n", path)
 				result := client.Run([]string{path}, vals)
 				result.Messages = rules.FilterIgnoredMessages(result.Messages, ignorePatterns)
 				result.Errors = rules.FilterIgnoredErrors(result.Errors, ignorePatterns)
-				for _, msg := range result.Messages {
-					fmt.Fprintf(&message, "%s\n", msg)
+
+				// If there is no errors/warnings and quiet flag is set
+				// go to the next chart
+				hasWarningsOrErrors := action.HasWarningsOrErrors(result)
+				if hasWarningsOrErrors {
+					errorsOrWarnings++
 				}
-				if len(result.Messages) != 0 {
-					failed++
+				if client.Quiet && !hasWarningsOrErrors {
+					continue
+				}
+
+				fmt.Fprintf(&message, "==> Linting %s\n", path)
+
+				// All the Errors that are generated by a chart
+				// that failed a lint will be included in the
+				// results.Messages so we only need to print
+				// the Errors if there are no Messages.
+				if len(result.Messages) == 0 {
 					for _, err := range result.Errors {
-						fmt.Fprintf(&message, "Error: %s\n", err)
+						fmt.Fprintf(&message, "Error %s\n", err)
+					}
+				}
+
+				for _, msg := range result.Messages {
+					if !client.Quiet || msg.Severity > support.InfoSev {
+						fmt.Fprintf(&message, "%s\n", msg)
 					}
 				}
+
+				if len(result.Errors) != 0 {
+					failed++
+				}
+
+				// Adding extra new line here to break up the
+				// results, stops this from being a big wall of
+				// text and makes it easier to follow.
+				fmt.Fprint(&message, "\n")
 			}
 
 			fmt.Fprint(out, message.String())
+
 			summary := fmt.Sprintf("%d chart(s) linted, %d chart(s) failed", len(paths), failed)
 			if failed > 0 {
 				return errors.New(summary)
 			}
-			fmt.Fprintln(out, summary)
+			if !client.Quiet || errorsOrWarnings > 0 {
+				fmt.Fprintln(out, summary)
+			}
 			return nil
 		},
 	}
@@ -123,6 +161,7 @@ func newLintCmd(out io.Writer) *cobra.Command {
 	f.BoolVar(&client.Quiet, "quiet", false, "print only warnings and errors")
 	f.StringVar(&kubeVersion, "kube-version", "", "Kubernetes version used for capabilities and deprecation checks")
 	f.StringVar(&lintIgnoreFile, "lint-ignore-file", "", "path to .helmlintignore file to specify ignore patterns")
+	addValueOptionsFlags(f, valueOpts)
 
 	return cmd
 }