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nixos/btrbk: Optimize sort
This avoids computing the prio more than necessary. The test evaluates to the same derivation hash.
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@ -13,7 +13,7 @@ let
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mkIf
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mkOption
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optionalString
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sort
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sortOn
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types
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;
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@ -37,7 +37,7 @@ let
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genConfig = set:
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let
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pairs = mapAttrsToList (name: value: { inherit name value; }) set;
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sortedPairs = sort (a: b: prioOf a < prioOf b) pairs;
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sortedPairs = sortOn prioOf pairs;
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in
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concatMap genPair sortedPairs;
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genSection = sec: secName: value:
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