From ab0722266622d4aef5fc3691b078d4b41ab8ab8e Mon Sep 17 00:00:00 2001
From: torque <torque@users.noreply.github.com>
Date: Tue, 4 Apr 2023 23:19:28 -0700
Subject: [PATCH] parser: support requiring subcommands

---
 source/parser.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source/parser.zig b/source/parser.zig
index 7b3e582..c7c6515 100644
--- a/source/parser.zig
+++ b/source/parser.zig
@@ -141,6 +141,11 @@ pub fn Parser(comptime command: anytype, comptime callback: anytype) type {
                     &[_][]const u8{ name, args[sliceto - 1] },
                 );
                 try verb.parse(verbname, args[sliceto..], env);
+            } else if (self.subcommands.count() > 0 and command.subcommand_required) {
+                const stderr = std.io.getStdErr().writer();
+                try stderr.writeAll("A subcommand is required.\n\n");
+
+                self.print_help(name);
             }
         }