27 lines
678 B
Nix
27 lines
678 B
Nix
#
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# Checks that all set options are described.
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#
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options: configuration:
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with builtins;
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with (import ../../lib);
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let
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findInList = p: list: default:
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if (list == []) then default else
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if (p (head list)) then (head list) else
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findInList p (tail list) default;
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attrSetToList = attrs: if (isAttrs attrs) then (concatLists (map
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(s:
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(map (l: ([s] ++ l))
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(attrSetToList (getAttr s attrs))))
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(attrNames attrs))) else [[]];
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in
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let opts = (map (a: a.name) options);
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conf = attrSetToList configuration;
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in
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let res=findInList (a: (findInList (b: (eqLists a b)) opts null)==null) conf null;
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in
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#if res==null then null else map (l: ["<"] ++ l ++ [">"]) res
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res
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