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liminix/doc/extract-options.nix

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Nix

{ eval, lib, pkgs }:
let
inherit (lib) types;
conf = eval.config;
rootDir = builtins.toPath ./..;
stripAnyPrefixes = lib.flip (lib.fold lib.removePrefix)
["${rootDir}/"];
optToDoc = name: opt : {
inherit name;
description = opt.description or null;
default = opt.default or null;
visible =
if (opt ? visible && opt.visible == "shallow")
then true
else opt.visible or true;
readOnly = opt.readOnly or false;
type = opt.type.description or "unspecified";
};
spliceServiceDefn = item :
if item.type == "parametrisable s6-rc service definition"
then
let sd = lib.attrByPath item.loc ["not found"] conf;
in item // {
declarations = map stripAnyPrefixes item.declarations;
parameters =
let x = lib.mapAttrsToList optToDoc sd.parameters; in x;
}
else
item // { declarations = map stripAnyPrefixes item.declarations; };
in
builtins.map spliceServiceDefn
(pkgs.lib.optionAttrSetToDocList eval.options)