add assertions on the required env vars

Author: lerouxb

packages/hadron-build/signtool/signtool.exe

@@ -27,6 +27,10 @@ func main() {
 	}
 
 	allowedExtensions := []string{
+		"GARASIGN_USERNAME",
+		"GARASIGN_PASSWORD",
+		"ARTIFACTORY_USERNAME",
+		"ARTIFACTORY_PASSWORD",
 		"SIGNING_SERVER_HOSTNAME",
 		"SIGNING_SERVER_PRIVATE_KEY",
 		"SIGNING_SERVER_USERNAME",