Fix --no-download-headless conflict in installer

Fix installer incorrectly exiting with a conflicting options errors when
the --no-download-headless option was used in conjunction with the
--factorio-dir option.

CHANGELOG.md

@@ -11,6 +11,7 @@
 - Fixed generated systemd file for clusteriohost not enabling source maps.
 - Fixed ctl not exporting types used for adding commands to ctl plugins.
 - Fixed controller only plugins throwing an error about missing a config field on startup out when added to hosts.
+- Fixed installer incorrectly claiming the options --factorio-dir and --no-download-headless conflicts with each other.
 
 
 ## Version 2.0.0-alpha.14

packages/create/create.js

@@ -612,7 +612,7 @@ async function inquirerMissingArgs(args) {
 				},
 			], answers);
 
-			if (answers.downloadHeadless) {
+			if (!answers.factorioDir && answers.downloadHeadless) {
 				answers.factorioDir = "factorio";
 			}
 		}
@@ -760,7 +760,7 @@ async function main() {
 					"Can be set to false using --no-download-headless.",
 				type: "boolean",
 			})
-			.conflicts("factorio-dir", "download-headless");
+		;
 	}
 
 	args = args.argv;
@@ -780,6 +780,9 @@ async function main() {
 
 	let answers = await inquirerMissingArgs(args);
 	if (answers.downloadHeadless) {
+		if (answers.factorioDir !== "factorio") {
+			throw new InstallError("--download-headless option requires --factorio-dir to be set to factorio");
+		}
 		await downloadLinuxServer();
 	}