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88 lines
3.1 KiB
Nix
88 lines
3.1 KiB
Nix
{ lib, pkgs }:
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with lib;
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rec {
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moduleToAttrs = value:
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if isAttrs value
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then mapAttrs (n: v: moduleToAttrs v) (filterAttrs (n: v: !(hasPrefix "_" n) && v != null) value)
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else if isList value
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then map (v: moduleToAttrs v) value
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else value;
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mkAllDefault = value: priority:
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if isAttrs value
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then mapAttrs (n: v: mkAllDefault v priority) value
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else if isList value
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then map (v: mkAllDefault v priority) value
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else mkOverride priority value;
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loadYAML = path: importJSON (pkgs.runCommand "yaml-to-json" {
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} "${pkgs.remarshal}/bin/remarshal -i ${path} -if yaml -of json > $out");
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toYAML = config: pkgs.runCommand "to-yaml" {
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buildInputs = [pkgs.remarshal];
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} ''
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remarshal -i ${pkgs.writeText "to-json" (builtins.toJSON config)} -if json -of yaml > $out
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'';
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toBase64 = value:
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builtins.readFile
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(pkgs.runCommand "value-to-b64" {} "echo -n '${value}' | ${pkgs.coreutils}/bin/base64 -w0 > $out");
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exp = base: exp: foldr (value: acc: acc * base) 1 (range 1 exp);
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octalToDecimal = value: (foldr (char: acc: {
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i = acc.i + 1;
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value = acc.value + (toInt char) * (exp 8 acc.i);
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}) {i = 0; value = 0;} (stringToCharacters value)).value;
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submoduleWithSpecialArgs = opts: specialArgs:
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let
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opts' = toList opts;
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inherit (lib.modules) evalModules;
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in
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mkOptionType rec {
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name = "submodule";
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check = x: isAttrs x || isFunction x;
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merge = loc: defs:
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let
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coerce = def: if isFunction def then def else { config = def; };
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modules = opts' ++ map (def: { _file = def.file; imports = [(coerce def.value)]; }) defs;
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in (evalModules {
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inherit modules specialArgs;
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prefix = loc;
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}).config;
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getSubOptions = prefix: (evalModules
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{ modules = opts'; inherit prefix specialArgs;
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# This is a work-around due to the fact that some sub-modules,
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# such as the one included in an attribute set, expects a "args"
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# attribute to be given to the sub-module. As the option
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# evaluation does not have any specific attribute name, we
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# provide a default one for the documentation.
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#
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# This is mandatory as some option declaration might use the
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# "name" attribute given as argument of the submodule and use it
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# as the default of option declarations.
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#
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# Using lookalike unicode single angle quotation marks because
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# of the docbook transformation the options receive. In all uses
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# > and < wouldn't be encoded correctly so the encoded values
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# would be used, and use of `<` and `>` would break the XML document.
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# It shouldn't cause an issue since this is cosmetic for the manual.
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args.name = "‹name›";
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}).options;
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getSubModules = opts';
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substSubModules = m: submoduleWithSpecialArgs m specialArgs;
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functor = (defaultFunctor name) // {
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# Merging of submodules is done as part of mergeOptionDecls, as we have to annotate
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# each submodule with its location.
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payload = [];
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binOp = lhs: rhs: [];
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};
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};
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}
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