check all existing index

Signed-off-by: ye.sijun <junnplus@gmail.com>

cmd/krew/cmd/root.go

@@ -32,6 +32,7 @@ import (
 	"sigs.k8s.io/krew/cmd/krew/cmd/internal"
 	"sigs.k8s.io/krew/internal/environment"
 	"sigs.k8s.io/krew/internal/gitutil"
+	"sigs.k8s.io/krew/internal/index/indexoperations"
 	"sigs.k8s.io/krew/internal/indexmigration"
 	"sigs.k8s.io/krew/internal/installation"
 	"sigs.k8s.io/krew/internal/installation/receipt"
@@ -209,10 +210,17 @@ func cleanupStaleKrewInstallations() error {
 }
 
 func checkIndex(_ *cobra.Command, _ []string) error {
-	if ok, err := gitutil.IsGitCloned(paths.IndexPath(constants.DefaultIndexName)); err != nil {
-		return errors.Wrap(err, "failed to check local index git repository")
-	} else if !ok {
-		return errors.New(`krew local plugin index is not initialized (run "kubectl krew update")`)
+	indexes, err := indexoperations.ListIndexes(paths)
+	if err != nil {
+		return errors.Wrap(err, "failed to list indexes")
+	}
+	for _, idx := range indexes {
+		indexPath := paths.IndexPath(idx.Name)
+		if ok, err := gitutil.IsGitCloned(indexPath); err != nil {
+			return errors.Wrap(err, "failed to check local index git repository")
+		} else if !ok {
+			return errors.New(`krew local plugin index is not initialized (run "kubectl krew update")`)
+		}
 	}
 	return nil
 }