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|
# Defines an overlay for overriding Haskell packages, for example to
# avoid breakage currently present in nixpkgs or to modify package
# versions.
{ lib, ... }:
self: super: # overlay parameters for the nixpkgs overlay
let
dhall-source = subdir: pkg: super.haskell.lib.overrideSrc pkg {
src = "${super.fetchFromGitHub {
owner = "Profpatsch";
repo = "dhall-haskell";
# https://github.com/dhall-lang/dhall-haskell/pull/2426
rev = "82123817316192d39f9a3e68b8ce9c9cff0a48ed";
sha256 = "sha256-gbHoUKIdLPIttqeV471jsT8OJz6uiI6LpHOwtLbBGHY=";
}}/${subdir}";
};
in
{
haskellPackages = super.haskellPackages.override {
overrides = hsSelf: hsSuper: {
# TODO: this is to fix a bug in dhall-nix
dhall = dhall-source "dhall" hsSuper.dhall;
dhall-nix = dhall-source "dhall-nix" hsSuper.dhall-nix;
};
};
haskell = lib.recursiveUpdate super.haskell {
packages.ghc8107 = super.haskell.packages.ghc8107.override {
overrides = hsSelf: hsSuper: {
# TODO(sterni): TODO(grfn): patch xanthous to work with random-fu 0.3.*,
# so we can use GHC 9.0.2 and benefit from upstream binary cache.
random-fu = hsSelf.callPackage ./extra-pkgs/random-fu-0.2.nix { };
rvar = hsSelf.callPackage ./extra-pkgs/rvar-0.2.nix { };
};
};
};
}
|
