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Drop null elements in sources.json
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parent
64e80a0cac
commit
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14
app/Niv.hs
14
app/Niv.hs
@ -91,7 +91,19 @@ newtype PackageSpec = PackageSpec { unPackageSpec :: Aeson.Object }
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-- | Simply discards the 'Freedom'
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attrsToSpec :: Attrs -> PackageSpec
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attrsToSpec = PackageSpec . fmap snd
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attrsToSpec = PackageSpec . dropNulls . fmap snd
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where
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dropNulls
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:: HMS.HashMap T.Text Aeson.Value
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-> HMS.HashMap T.Text Aeson.Value
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dropNulls = HMS.mapMaybe $ \case
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x@Aeson.Object{} -> Just x
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x@Aeson.Array{} -> Just x
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x@Aeson.String{} -> Just x
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x@Aeson.Number{} -> Just x
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x@Aeson.Bool{} -> Just x
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Aeson.Null -> Nothing
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parsePackageSpec :: Opts.Parser PackageSpec
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parsePackageSpec =
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@ -1,6 +1,5 @@
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{
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"nixpkgs": {
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"homepage": null,
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"url": "http://localhost:3333/NixOS/nixpkgs-channels/archive/571b40d3f50466d3e91c1e609d372de96d782793.tar.gz",
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"owner": "NixOS",
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"branch": "nixos-18.09",
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