From c1a6daf6d2f3b58b4cf65bc25048bad67fb2a1c4 Mon Sep 17 00:00:00 2001
From: Jason Cameron <git@jasoncameron.dev>
Date: Fri, 13 Jun 2025 16:56:05 -0400
Subject: [PATCH] fix: add validation for generated Anubis rules from
 robots.txt

---
 cmd/robots2policy/main.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cmd/robots2policy/main.go b/cmd/robots2policy/main.go
index 481c4f37..811fc156 100644
--- a/cmd/robots2policy/main.go
+++ b/cmd/robots2policy/main.go
@@ -85,6 +85,11 @@ func main() {
 	// Convert to Anubis rules
 	anubisRules := convertToAnubisRules(rules)
 
+	// Check if any rules were generated
+	if len(anubisRules) == 0 {
+		log.Fatal("no valid rules generated from robots.txt - file may be empty or contain no disallow directives")
+	}
+
 	// Generate output
 	var output []byte
 	switch strings.ToLower(*outputFormat) {