15 lines
460 B
Nix
15 lines
460 B
Nix
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{ lib }:
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with lib;
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{
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recursiveMergeAttrs = a: b: let
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commonAttrs = intersectLists (attrNames a) (attrNames b);
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aAttrs = subtractLists (attrNames a) commonAttrs;
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bAttrs = subtractLists (attrNames b) commonAttrs;
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aSide = (filterAttrs (k: v: elem k aAttrs) a);
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bSide = (filterAttrs (k: v: elem k bAttrs) b);
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common = (foldr (a: b: a // b) {}
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(map (k: { ${k} = a.${k} // b.${k}; }) commonAttrs));
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in aSide // bSide // common;
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}
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