Fix --allow-unreleased flag for helm 3

cmd/upgrade.go

@@ -113,12 +113,12 @@ func (d *diffCmd) runHelm3() error {
 	if err != nil && strings.Contains(err.Error(), "release: not found") {
 		if d.allowUnreleased {
 			fmt.Printf("********************\n\n\tRelease was not present in Helm.  Diff will show entire contents as new.\n\n********************\n")
+			newInstall = true
 			err = nil
 		} else {
 			fmt.Printf("********************\n\n\tRelease was not present in Helm.  Include the `--allow-unreleased` to perform diff without exiting in error.\n\n********************\n")
 			return err
 		}
-
 	}
 	if err != nil {
 		return fmt.Errorf("Failed to get release %s in namespace %s: %s", d.release, d.namespace, err)

plugin.yaml

@@ -1,7 +1,7 @@
 name: "diff"
 # Version is the version of Helm plus the number of official builds for this
 # plugin
-version: "3.0.0-rc.4"
+version: "3.0.0-rc.5"
 usage: "Preview helm upgrade changes as a diff"
 description: "Preview helm upgrade changes as a diff"
 useTunnel: true