2021-04-12 10:52:05 +02:00
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system: packages:
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let
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# Adopted from nixpkgs.lib
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2021-04-25 12:08:52 +02:00
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inherit (builtins) listToAttrs concatMap attrNames;
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2021-04-12 10:52:05 +02:00
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nameValuePair = name: value: { inherit name value; };
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filterAttrs = pred: set:
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listToAttrs (
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concatMap (name:
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let v = set.${name}; in
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if pred name v then [(nameValuePair name v)] else []
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)
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(attrNames set)
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);
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# Everything that nix flake check requires for the packages output
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sieve = n: v:
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with v;
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let
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inherit (builtins) isAttrs;
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isDerivation = x: isAttrs x && x ? type && x.type == "derivation";
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platforms = meta.hydraPlatforms or meta.platforms or [ ];
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in
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# check for isDerivation, so this is independently useful of
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# flattenTree, which also does filter on derviations
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isDerivation v && !meta.broken && builtins.elem system platforms
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;
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in
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filterAttrs sieve packages
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