69 lines
2.1 KiB
Nix
69 lines
2.1 KiB
Nix
# From home-manager: https://github.com/nix-community/home-manager/blob/master/modules/lib/types-dag.nix
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# Used for ordering configuration text.
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{lib}: let
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inherit
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(lib)
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defaultFunctor
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nvim
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mkIf
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mkOrder
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mkOption
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mkOptionType
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types
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;
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dagEntryOf = elemType: let
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submoduleType = types.submodule ({name, ...}: {
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options = {
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data = mkOption {type = elemType;};
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after = mkOption {type = with types; listOf str;};
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before = mkOption {type = with types; listOf str;};
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};
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config = mkIf (elemType.name == "submodule") {
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data._module.args.dagName = name;
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};
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});
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maybeConvert = def:
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if nvim.dag.isEntry def.value
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then def.value
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else
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nvim.dag.entryAnywhere (
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if def ? priority
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then mkOrder def.priority def.value
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else def.value
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);
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in
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mkOptionType {
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name = "dagEntryOf";
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description = "DAG entry of ${elemType.description}";
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# leave the checking to the submodule type
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merge = loc: defs:
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submoduleType.merge loc (map (def: {
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inherit (def) file;
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value = maybeConvert def;
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})
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defs);
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};
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in rec {
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# A directed acyclic graph of some inner type.
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#
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# Note, if the element type is a submodule then the `name` argument
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# will always be set to the string "data" since it picks up the
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# internal structure of the DAG values. To give access to the
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# "actual" attribute name a new submodule argument is provided with
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# the name `dagName`.
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dagOf = elemType: let
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attrEquivalent = types.attrsOf (dagEntryOf elemType);
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in
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mkOptionType rec {
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name = "dagOf";
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description = "DAG of ${elemType.description}";
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inherit (attrEquivalent) check merge emptyValue;
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inherit (elemType) getSubModules;
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getSubOptions = prefix: elemType.getSubOptions (prefix ++ ["<name>"]);
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substSubModules = m: dagOf (elemType.substSubModules m);
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functor = (defaultFunctor name) // {wrapped = elemType;};
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nestedTypes.elemType = elemType;
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};
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}
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