Don't call helm Get to pick up the latest version when there is only …

…one version for the given chart

Signed-off-by: Xiangjing Li <xiangli@redhat.com>

pkg/utils/helmrepo.go

@@ -538,6 +538,12 @@ func FilterCharts(sub *appv1.Subscription, indexFile *repo.IndexFile) error {
 func takeLatestVersion(indexFile *repo.IndexFile) (err error) {
 	indexFile.SortEntries()
 
+	// Don't call helm Get to pick up the latest version when there is only one version for the given chart. This is to avoid such error
+	// If there is only one version for the chart and it is defined as `3.0.0-stable`, the helm Get function fails to regard it as the latest version
+	if len(indexFile.Entries) == 1 {
+		return nil
+	}
+
 	for k := range indexFile.Entries {
 		//Get return the latest version when version is empty but
 		//there is a bug in the masterminds semver used by helm