cleanup prompting

config.go

@@ -46,29 +46,23 @@ func setupConfig(rerun bool) (*Config, error) {
 		}
 		newConfig.WowDir = strings.TrimSpace(s)
 
-		for {
-			fmt.Printf("Do you want to use epochcli to launch Wow? Select No if you plan on using a launcher tool like Lutris (y/n): ")
-			_, err = fmt.Scanf("%s", &s)
+		p, err := promptYesNo(fmt.Sprintf("Do you want to use epochcli to launch Wow? Select No if you plan on using a launcher tool like Lutris (y/n): "))
 		if err != nil {
-				return nil, fmt.Errorf("unable to read input: %v", err)
+			return nil, err
 		}
-			s = strings.TrimSpace(s)
-
-			if s == "y" || s == "Y" {
+		if p {
 			newConfig.EnableLauncher = true
 
 			if runtime.GOOS == "windows" {
 				newConfig.LaunchCmd = path.Join(newConfig.WowDir, "Project-Epoch.exe")
 				exePath, err := os.Executable()
 				if err != nil {
-						fmt.Println("unable to create desktop shortcut: ", err)
-						break
+					return nil, fmt.Errorf("unable to create desktop shortcut: %v", err)
 				}
 				err = makeLink(exePath, path.Join(home, "Desktop", "Project-Epoch.lnk"))
 				if err != nil {
-						fmt.Println("unable to create desktop shortcut: ", err)
+					return nil, fmt.Errorf("unable to create desktop shortcut: %v", err)
 				}
-					break
 			} else {
 				fmt.Println("Enter your launch command to start Wow below. If you would rather configure this later in the configuration file, just press Enter")
 				fmt.Printf("> ")
@@ -82,18 +76,9 @@ func setupConfig(rerun bool) (*Config, error) {
 				if s != "" {
 					newConfig.LaunchCmd = s
 				}
-
-					break
 			}
 		}
 
-			if s == "n" || s == "N" {
-				break
-			}
-
-			fmt.Println("Please enter a valid value of either 'y' or 'n'")
-		}
-
 		err = os.MkdirAll(filepath.Join(home, ".config", configDirName), 0755)
 		if err != nil {
 			return nil, fmt.Errorf("unable to create config directory: %v", err)
@@ -120,3 +105,24 @@ func setupConfig(rerun bool) (*Config, error) {
 
 	return &newConfig, nil
 }
+
+func promptYesNo(prompt string) (bool, error) {
+	var s string
+	for {
+		fmt.Print(prompt)
+		_, err := fmt.Scanf("%s", &s)
+		if err != nil {
+			return false, fmt.Errorf("unable to read input: %v", err)
+		}
+		s := strings.TrimSpace(s)
+
+		if s == "y" || s == "Y" {
+			return true, nil
+		}
+
+		if s == "n" || s == "N" {
+			return false, nil
+		}
+		fmt.Println("Please enter a valid value of either 'y' or 'n'")
+	}
+}