Make FactorioServer.exampleSettings static

Convert the exampleSettings method to be a static method.

client.js

@@ -75,7 +75,7 @@ class Instance {
 		// save instance config
 		await fs.outputFile(instance.path("config.json"), JSON.stringify(instanceConfig, null, 4));
 
-		let serverSettings = await instance.server.exampleSettings();
+		let serverSettings = await factorio.FactorioServer.exampleSettings(path.join(factorioDir, "data"));
 		let gameName = "Clusterio instance: " + instance.name;
 		if (options.username) {
 			gameName = options.username + "'s clusterio " + instance.name;

lib/factorio/server.js

@@ -753,10 +753,11 @@ class FactorioServer extends events.EventEmitter {
 	 *
 	 * Loads server-settings.example.json from the data dir.
 	 *
+	 * @param {string} dataDir - The data directory for Factorio
 	 * @returns {object} the parsed server-settings.
 	 */
-	async exampleSettings() {
-		return JSON.parse(await fs.readFile(this.dataPath("server-settings.example.json"), "utf-8"));
+	static async exampleSettings(dataDir) {
+		return JSON.parse(await fs.readFile(path.join(dataDir, "server-settings.example.json"), "utf-8"));
 	}
 
 	async _writeConfigIni() {

test/integration/server.js

@@ -45,7 +45,7 @@ describe("Integration of lib/factorio/server", function() {
 		describe(".exampleSettings()", function() {
 			let settings;
 			it("returns an object", async function() {
-				settings = await server.exampleSettings();
+				settings = await factorio.FactorioServer.exampleSettings(path.join("factorio", "data"));
 				assert(typeof settings === "object");
 			});