correct handling of missing settings.json

src/main/errors.ts

@@ -0,0 +1,15 @@
+class RethrownError extends Error {
+  original_error: Error;
+  stack_before_rethrow: string;
+
+  constructor(message: string, error: Error){
+	super(message);
+	this.name = this.constructor.name;
+	if (!error) throw new Error('RethrownError requires a message and error');
+	this.original_error = error;
+	this.stack_before_rethrow = this.stack;
+	const message_lines =  (this.message.match(/\n/g)||[]).length + 1;
+	this.stack = this.stack.split('\n').slice(0, message_lines+1).join('\n') + '\n' +
+	  error.stack;
+  }
+}

src/main/loadSettings.ts

@@ -9,10 +9,9 @@ export async function loadSettings() {
   try {
 	await fsAsync.stat('settings.json');
   } catch (e) {
-	await fsAsync.writeFile(
-	  'settings.json',
-	  JSON.stringify({sessionCookie: '', defaultResolution: {width: 1920, height: 1080}}, null, 2)
-	);
+    const err = e as Error;
+    dialog.showErrorBox('Error', 'Settings.json missing. Be sure to rename settings.json.template to settings.json');
+    throw new RethrownError(err.message, err);
   }
 
   const settingsBuffer = await fsAsync.readFile('settings.json');