From bea4868b388dd927093ad030ecca23b207c14844 Mon Sep 17 00:00:00 2001
From: Kanishk Pachauri <itskanishkp.py@gmail.com>
Date: Wed, 23 Oct 2024 05:08:43 +0530
Subject: [PATCH] fix: add  human-readable error when nc is not installed on
 the host

Signed-off-by: Kanishk Pachauri <itskanishkp.py@gmail.com>
---
 hack/test-port-forwarding.pl | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/hack/test-port-forwarding.pl b/hack/test-port-forwarding.pl
index 8245cf9396e..3a41ce1e118 100755
--- a/hack/test-port-forwarding.pl
+++ b/hack/test-port-forwarding.pl
@@ -54,6 +54,17 @@
     exit;
 }
 
+# Check if netcat is available before running tests
+my $nc_path = `command -v nc 2>/dev/null`;
+chomp $nc_path;
+unless ($nc_path) {
+    die "Error: 'nc' (netcat) is not installed on the host system.\n" .
+        "Please install netcat to run this test script:\n" .
+        "  - On macOS: brew install netcat\n" .
+        "  - On Ubuntu/Debian: sudo apt-get install netcat\n" .
+        "  - On RHEL/CentOS: sudo yum install nmap-ncat\n";
+}
+
 # Otherwise $instance must be the name of an already running instance that has been
 # configured with our portForwards settings.