100 lines
2.4 KiB
Nix
100 lines
2.4 KiB
Nix
let
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mkOption = attrs: attrs // {_type = "option";};
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typeOf = x: if x ? _type then x._type else "";
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combine = defs: opts: opts //
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builtins.listToAttrs (map (defName:
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{ name = defName;
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value =
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let
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defValue = builtins.getAttr defName defs;
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optValue = builtins.getAttr defName opts;
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in
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if typeOf defValue == "option"
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then
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# `defValue' is an option.
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if builtins.hasAttr defName opts
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then builtins.getAttr defName opts
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else defValue.default
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else
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# `defValue' is an attribute set containing options.
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# So recurse.
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if builtins.hasAttr defName opts && builtins.isAttrs optValue
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then combine defValue optValue
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else combine defValue {};
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}
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) (builtins.attrNames defs));
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testDefs = {
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time = {
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timeZone = mkOption {
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default = "CET";
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example = "America/New_York";
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description = "The time zone used when displaying times and dates.";
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};
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};
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boot = {
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kernelModules = mkOption {
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default = ["mod1"];
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description = "
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The set of kernel modules to be loaded in the second stage of
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the boot process. That is, these modules are not included in
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the initial ramdisk, so they'd better not be required for
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mounting the root file system. Add them to
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<option>boot.initrd.extraKernelModules</option> if they are.
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";
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};
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initrd = {
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kernelModules = mkOption {
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default = [
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"ahci"
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"ata_piix"
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"pata_marvell"
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"sd_mod"
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"sr_mod"
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"ide-cd"
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"ide-disk"
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"ide-generic"
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"ext3"
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# Support USB keyboards, in case the boot fails and we only have
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# a USB keyboard.
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"ehci_hcd"
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"ohci_hcd"
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"usbhid"
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];
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description = "
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The set of kernel modules in the initial ramdisk used during the
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boot process.
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";
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};
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};
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};
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};
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testOpts = {
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/*
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time = {
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timeZone = "UTC";
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};
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*/
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boot = {
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initrd = {
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kernelModules = ["foo"];
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extraKernelModules = ["bar"];
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};
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};
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};
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in (combine testDefs testOpts).boot.initrd.kernelModules
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