49 lines
1.8 KiB
Nix
49 lines
1.8 KiB
Nix
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{ pkgs ? import <nixpkgs> {}, ... }: let
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inherit (builtins) genericClosure hasAttr length map;
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inherit (pkgs) runCommandLocal writeText;
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inherit (pkgs.lib) concatLines concatLists concatMap filter isDerivation isList mapAttrsToList;
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in rec {
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drvOutputs = drv: if hasAttr "outputs" drv then map (out: drv.${out}) drv.outputs else [ drv ];
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drvDeps = drv:
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mapAttrsToList (k: v:
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if isDerivation v then (drvOutputs v)
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else if isList v then concatMap drvOutputs (filter isDerivation v)
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else []
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) drv;
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drvClosure = let
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wrap = drv: { key = drv.outPath; inherit drv; };
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in drv: map (obj: obj.drv) (genericClosure {
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startSet = map wrap (drvOutputs drv);
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operator = obj: map wrap (concatLists (drvDeps obj.drv.drvAttrs));
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});
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drvMaintainers = drv:
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if ! hasAttr "meta" drv then []
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else if ! hasAttr "maintainers" drv.meta then []
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else drv.meta.maintainers;
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nobodyMaintains = drv:
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hasAttr "meta" drv &&
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hasAttr "maintainers" drv.meta &&
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(length drv.meta.maintainers) == 0;
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stringJoin = objToString: objs: writeText "txt" (concatLines (map objToString objs));
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allMaintainers = drv: let
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closure = drvClosure drv;
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maintainers = concatMap drvMaintainers closure;
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mainToString = m: "${m.name} (${m.email})";
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in runCommandLocal "uniq-maintainers.txt" {} ''
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<${stringJoin mainToString maintainers} sort | uniq -c > $out
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'';
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noMaintainers = drv: let
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closure = drvClosure drv;
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unmaintained = filter nobodyMaintains closure;
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drvToString = drv: "${drv.name} ${drv.meta.position}";
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in runCommandLocal "no-maintainers.txt" {} ''
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<${stringJoin drvToString unmaintained} sort -u \
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| sed 's/\/nix\/store\/[^/]*/https:\/\/github.com\/NixOS\/nixpkgs\/blob\/master/' \
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| sed 's/.nix:\(.*\)$/#L\1/' \
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| ${pkgs.unixtools.column}/bin/column -t \
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> $out
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'';
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}
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