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types: pass parent node to all subTypes

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This commit is contained in:
lassulus 2023-06-07 13:42:39 +02:00
parent e0179917d8
commit 62f939e213
15 changed files with 79 additions and 27 deletions
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29
lib/default.nix
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@ -7,31 +7,40 @@ let
diskoLib = {
# like lib.types.oneOf but instead of a list takes an attrset
# uses the field "type" to find the correct type in the attrset
subType = typeAttr: lib.mkOptionType rec {
subType = { types, extraArgs ? { parent = { type = "rootNode"; name = "root"; }; } }: lib.mkOptionType rec {
name = "subType";
description = "one of ${concatStringsSep "," (attrNames typeAttr)}";
check = x: if x ? type then typeAttr.${x.type}.check x else throw "No type option set in:\n${generators.toPretty {} x}";
merge = loc: foldl' (_res: def: typeAttr.${def.value.type}.merge loc [ def ]) { };
nestedTypes = typeAttr;
description = "one of ${concatStringsSep "," (attrNames types)}";
check = x: if x ? type then types.${x.type}.check x else throw "No type option set in:\n${generators.toPretty {} x}";
merge = loc: foldl' (res: def: types.${def.value.type}.merge loc [
# we add a dummy root parent node to render documentation
(lib.recursiveUpdate { value._module.args = extraArgs; } def)
]) { };
nestedTypes = types;
};
# option for valid contents of partitions (basically like devices, but without tables)
partitionType = lib.mkOption {
type = lib.types.nullOr (diskoLib.subType { inherit (diskoLib.types) btrfs filesystem zfs mdraid luks lvm_pv swap; });
partitionType = extraArgs: lib.mkOption {
type = lib.types.nullOr (diskoLib.subType {
types = { inherit (diskoLib.types) btrfs filesystem zfs mdraid luks lvm_pv swap; };
inherit extraArgs;
});
default = null;
description = "The type of partition";
};
# option for valid contents of devices
deviceType = lib.mkOption {
type = lib.types.nullOr (diskoLib.subType { inherit (diskoLib.types) table btrfs filesystem zfs mdraid luks lvm_pv swap; });
deviceType = extraArgs: lib.mkOption {
type = lib.types.nullOr (diskoLib.subType {
types = { inherit (diskoLib.types) table table_gpt btrfs filesystem zfs mdraid luks lvm_pv swap; };
inherit extraArgs;
});
default = null;
description = "The type of device";
};
/* deepMergeMap takes a function and a list of attrsets and deep merges them
deepMergeMap :: -> (AttrSet -> AttrSet ) -> [ AttrSet ] -> Attrset
deepMergeMap :: (AttrSet -> AttrSet ) -> [ AttrSet ] -> Attrset
Example:
deepMergeMap (x: x.t = "test") [ { x = { y = 1; z = 3; }; } { x = { bla = 234; }; } ]