add index template {ls,sh} (#33)

cmd/utilities.go

@@ -0,0 +1,35 @@
+/*
+Copyright © 2026 Thomas von Dein
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+package cmd
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/urfave/cli/v3"
+)
+
+func addReference(ref string) string {
+	indentedRef := []string{}
+
+	for _, line := range strings.Split(ref, "\n") {
+		indentedRef = append(indentedRef, "   "+line)
+	}
+	return fmt.Sprintf("%s\nREFERENCE:\n%s\n",
+		cli.SubcommandHelpTemplate,
+		strings.Join(indentedRef, "\n"))
+}