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module: define only if devices are given

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This commit is contained in:
lassulus 2022-12-25 21:15:32 +01:00
parent e3527b826d
commit f7445ae739
1 changed files with 3 additions and 2 deletions
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5
module.nix
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@ -5,7 +5,8 @@ let
in {
options.disko = {
devices = lib.mkOption {
type = types.devices;
type = lib.types.nullOr types.devices;
default = null;
};
enableConfig = lib.mkOption {
description = ''
@ -17,7 +18,7 @@ in {
default = true;
};
};
config = {
config = lib.mkIf (cfg.devices != null) {
system.build.formatScript = pkgs.writers.writeDash "disko-create" ''
export PATH=${lib.makeBinPath (types.diskoLib.packages cfg.devices pkgs)}:$PATH
${types.diskoLib.create cfg.devices}