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Merge pull request #42923 from Gabriel439/gabriel/readDirectory

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Add `pkgs.haskell.lib.packagesFromDirectory` utility
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Robert Hensing 2018-07-10 11:30:11 +02:00 committed by GitHub
commit 873465eede
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19
pkgs/development/haskell-modules/lib.nix
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@ -382,4 +382,23 @@ rec {
allPkgconfigDepends; allPkgconfigDepends;
}; };
# Utility to convert a directory full of `cabal2nix`-generated files into a
# package override set
#
# packagesFromDirectory : { directory : Directory, ... } -> HaskellPackageOverrideSet
packagesFromDirectory =
{ directory, ... }:
self: super:
let
haskellPaths = builtins.attrNames (builtins.readDir directory);
toKeyVal = file: {
name = builtins.replaceStrings [ ".nix" ] [ "" ] file;
value = self.callPackage (directory + "/${file}") { };
};
in
builtins.listToAttrs (map toKeyVal haskellPaths);
} }