add checkOCI helper method

Signed-off-by: Josh Dolitsky <josh@dolit.ski>

cmd/helm/install.go

@@ -19,7 +19,6 @@ package main
 import (
 	"io"
 	"log"
-	"strings"
 	"time"
 
 	"github.com/pkg/errors"
@@ -183,10 +182,8 @@ func runInstall(args []string, client *action.Install, valueOpts *values.Options
 	}
 	client.ReleaseName = name
 
-	if strings.HasPrefix(chart, "oci://") {
-		if !FeatureGateOCI.IsEnabled() {
-			return nil, FeatureGateOCI.Error()
-		}
+	if err := checkOCI(chart); err != nil {
+		return nil, err
 	}
 
 	cp, err := client.ChartPathOptions.LocateChart(chart, settings)

cmd/helm/pull.go

@@ -20,7 +20,6 @@ import (
 	"fmt"
 	"io"
 	"log"
-	"strings"
 
 	"github.com/spf13/cobra"
 
@@ -65,10 +64,8 @@ func newPullCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 				client.Version = ">0.0.0-0"
 			}
 
-			if strings.HasPrefix(args[0], "oci://") {
-				if !FeatureGateOCI.IsEnabled() {
-					return FeatureGateOCI.Error()
-				}
+			if err := checkOCI(args[0]); err != nil {
+				return err
 			}
 
 			for i := 0; i < len(args); i++ {

cmd/helm/root.go

@@ -262,3 +262,12 @@ func checkForExpiredRepos(repofile string) {
 	}
 
 }
+
+// When dealing with OCI-based charts, ensure that the user has
+// enabled the experimental feature gate prior to continuing
+func checkOCI(ref string) error {
+	if registry.IsOCI(ref) && !FeatureGateOCI.IsEnabled() {
+		return FeatureGateOCI.Error()
+	}
+	return nil
+}

cmd/helm/show.go

@@ -20,7 +20,6 @@ import (
 	"fmt"
 	"io"
 	"log"
-	"strings"
 
 	"github.com/spf13/cobra"
 
@@ -177,10 +176,8 @@ func runShow(args []string, client *action.Show) (string, error) {
 		client.Version = ">0.0.0-0"
 	}
 
-	if strings.HasPrefix(args[0], "oci://") {
-		if !FeatureGateOCI.IsEnabled() {
-			return "", FeatureGateOCI.Error()
-		}
+	if err := checkOCI(args[0]); err != nil {
+		return "", err
 	}
 
 	cp, err := client.ChartPathOptions.LocateChart(args[0], settings)

cmd/helm/upgrade.go

@@ -20,7 +20,6 @@ import (
 	"fmt"
 	"io"
 	"log"
-	"strings"
 	"time"
 
 	"github.com/pkg/errors"
@@ -84,10 +83,8 @@ func newUpgradeCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 			return nil, cobra.ShellCompDirectiveNoFileComp
 		},
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if strings.HasPrefix(args[1], "oci://") {
-				if !FeatureGateOCI.IsEnabled() {
-					return FeatureGateOCI.Error()
-				}
+			if err := checkOCI(args[1]); err != nil {
+				return err
 			}
 
 			client.Namespace = settings.Namespace()