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mirror of https://github.com/NixOS/nixpkgs.git synced 2024-12-23 22:23:15 +00:00
nixpkgs/lib/kernel.nix
Alyssa Ross 12e08bd339 lib.kernel.unset: init
Previously, there was no way to unset an option when overriding a
kernel, apart from writing out the attrset yourself.  Now it's
possible with lib.mkForce lib.kernel.unset.  It's important to be able
to do this, because setting an option in the override may cause other
options to become unused, which would fail the config build unless
they were overridden too.
2023-05-01 10:23:42 +00:00

28 lines
807 B
Nix

{ lib }:
with lib;
{
# Keeping these around in case we decide to change this horrible implementation :)
option = x:
x // { optional = true; };
yes = { tristate = "y"; optional = false; };
no = { tristate = "n"; optional = false; };
module = { tristate = "m"; optional = false; };
unset = { tristate = null; optional = false; };
freeform = x: { freeform = x; optional = false; };
/*
Common patterns/legacy used in common-config/hardened/config.nix
*/
whenHelpers = version: {
whenAtLeast = ver: mkIf (versionAtLeast version ver);
whenOlder = ver: mkIf (versionOlder version ver);
# range is (inclusive, exclusive)
whenBetween = verLow: verHigh: mkIf (versionAtLeast version verLow && versionOlder version verHigh);
};
}