From e144f05a4f2052f6cb21b0608d9262ab7e1261a9 Mon Sep 17 00:00:00 2001
From: Marek Roszko <mark.roszko@gmail.com>
Date: Sun, 13 Nov 2022 14:24:44 -0500
Subject: [PATCH] Report back the correct arg info for a failed cli command

---
 kicad/kicad_cli.cpp | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/kicad/kicad_cli.cpp b/kicad/kicad_cli.cpp
index 7d7151ad6d..516af4068a 100644
--- a/kicad/kicad_cli.cpp
+++ b/kicad/kicad_cli.cpp
@@ -233,7 +233,22 @@ int PGM_KICAD::OnPgmRun()
     catch( const std::runtime_error& err )
     {
         std::cout << err.what() << std::endl;
-        std::cout << argParser;
+
+        // find the correct argparser object to output the command usage info
+        COMMAND_ENTRY* cliCmd = nullptr;
+        for( COMMAND_ENTRY& entry : commandStack )
+        {
+            if( argParser.is_subcommand_used( entry.handler->GetName() ) )
+            {
+                cliCmd = recurseArgParserSubCommandUsed( argParser, entry );
+            }
+        }
+
+        if( cliCmd )
+            std::cout << cliCmd->handler->GetArgParser();
+        else
+            std::cout << argParser;
+
         return CLI::EXIT_CODES::ERR_ARGS;
     }