Auto creation of Yaml Configurations Options on Update

Is it possible to create an extra option in a config file on reload/restart of server once a option has been added, for example;

(Default Config)

Code:

worlds:
    - world
 
world:
    -44
    -12

(Edited During Server Up)

Code:

worlds:
    - world
    - world2
 
world:
    -44
    -12

(After reload/restart)

Code:

worlds:
    - world
    - world2
 
world:
    -44
    -12
 
world2:
    -<Other ID's>

I hope this makes sense.

Thanks

 

Sure is. Grab the list of Strings, check if they exist (.contains(string)), and if they don't, add it (I think it was .addDefaults and after that .saveDefaults()

 

Thanks for the reply, all i have so far is this though

Code:java

 
public static void checkWorlds(){
        if(!config.getList("Worlds").contains(worlds)){ //worlds = Array in main
 

Mind giving me a quick code for it?

Thanks