Hello,
I have two questions about whether there any similar configuration languages like Nix that allow for the following:
Let’s say we have two modules: Module A and Module B.
Module A does the following:
config.foo = [“bar”];
Module B does the following:
config.foo = [“baz”];
If I now merge these two NixOS modules (NixOS modules - NixOS Wiki) the result of config.foo is as follows:
config.foo = [“bar” “baz”]
The first question is: are there any another configuration languages which allows to merge these two “by default”, just like I did not have to configure anything to get this behavior?
However, if we then make it more interesting: and change the code of Module B to the following:
config.foo = [
lib.optionalString (length config.foo > 0) “baz”
];
This still outputs [“bar” “baz”], regardless whether I have imported Module A first or Module B first. The order of importing does not matter in this case.
The second question is: are there any another configuration languages which allow me to change the configuration regardless whether I have imported that “module” earlier or later than another module?
Thank you for your time.