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43 lines
1.2 KiB
Nix
43 lines
1.2 KiB
Nix
1 month ago
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{ inputs, self, ... }@flakeArg:
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let
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inherit (inputs) nixpkgs nixpkgs_unstable;
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inherit (nixpkgs) lib; # prevent infinite recursion
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inherit (builtins) isString;
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inherit (lib.attrsets) attrByPath hasAttrByPath updateManyAttrsByPath;
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inherit (lib.options) showOption;
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inherit (lib.strings) splitString;
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inherit (lib.trivial) flip pipe warnIf;
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inherit (self) backportByPath;
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in
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{
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backportByPath =
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let
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pathInterpret = p: if isString p then splitString "." p else p;
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in
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new: orig: prefix:
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flip pipe [
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(map (
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path:
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let
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pathList = pathInterpret path;
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pathFull = pathInterpret prefix ++ pathList;
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error = abort "attr not found on path ${showOption pathFull}";
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newVal = attrByPath pathFull error new;
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origVal = attrByPath pathFull newVal orig;
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in
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{
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path = pathList;
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update =
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_:
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warnIf (hasAttrByPath pathFull orig) "${showOption pathFull} no longer needs to be backported"
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origVal;
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}
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))
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(flip updateManyAttrsByPath { })
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];
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backportNixpkg = backportByPath nixpkgs_unstable nixpkgs;
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}
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