From 7e1ea9f29034aba2e765e40514a9971c1add21c8 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Wed, 13 Jun 2018 07:54:33 +0200
Subject: [PATCH] generate_usage_str: do no generate help for unknown commands

Before:

...
USAGE: pvesm aaa zfsscan

With this patch applied:

no such command 'aaa'
---
 PVE/CLIHandler.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/PVE/CLIHandler.pm b/PVE/CLIHandler.pm
index 801f530..514906a 100644
--- a/PVE/CLIHandler.pm
+++ b/PVE/CLIHandler.pm
@@ -92,8 +92,8 @@ sub resolve_cmd {
 		$cmd = $argv->[$i]; 
 	    }
 	    $cmdstr .= " $cmd";
-	    last if !defined($def->{$cmd});
 	    $def = $def->{$cmd};
+	    last if !defined($def);
 
 	    if (ref($def) eq 'ARRAY') {
 		# could expand to a real command, rest of $argv are its arguments
@@ -131,6 +131,7 @@ sub generate_usage_str {
 	$cli_handler_class->can('string_param_file_mapping');
 
     my ($subcmd, $def, undef, undef, $cmdstr) = resolve_cmd($cmd);
+    die "no such command '$cmd->[0]'\n" if !defined($def) && ref($cmd) eq 'ARRAY';
 
     my $generate;
     $generate = sub {
-- 
2.39.2