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nixos/version: validate system.stateVersion #81135
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I think this is fine but perhaps it would be more elegant if this could be made into the type of stateVersion
? Something like (the entirely untested)
type =
let
notNewerThanNixpkgs = versionAtLeast cfg.release;
in
types.addCheck
(types.strMatching "[[:digit:]]{2}\\.(03|09)")
notNewerThanNixpkgs
// {
name = "nixosVersion";
description = "NixOS release version";
};
Edit: I have no particular opinion whether future versions should be allowed. But it does feel quite unsafe to set stateVersion
to a future version which may introduce changes that will affect you.
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Motivation for this change
Stripped down #80907 to validate only.
Things done
Correctly invalid (on branch nixos-20.03):
Questionably invalid (on branch nixos-20.03):
Correctly valid:
Incorrectly valid:
Open questions