# 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 haskellLib = self.haskell.lib.compose; dhall-source = subdir: pkg: haskellLib.overrideSrc { src = "${super.fetchFromGitHub { owner = "Profpatsch"; repo = "dhall-haskell"; # https://github.com/dhall-lang/dhall-haskell/pull/2426 rev = "5e3a407d8ac826597d935d8398825a0ca73fc4e9"; sha256 = "005plj6kgxlkm9npaq07kmsgmiqk50dpwb9li9w1ly4aj1zgfjnd"; }}/${subdir}"; } (haskellLib.overrideCabal { patches = [ ]; } pkg); 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; # TODO(Profpatsch): move cas-serve off superrecord # https://github.com/agrafix/superrecord/pull/35 # https://github.com/agrafix/superrecord/pull/37 superrecord = haskellLib.overrideSrc { src = self.fetchFromGitHub { owner = "possehl-analytics"; repo = "superrecord"; rev = "05c8fdd724af5189a9a8be2f30dfa55a67f8b656"; sha256 = "0p6a280kils12ycdlp6dd7392940yzzy6xi8pjar975j38fm3x5a"; }; } hsSuper.superrecord; # Use recently-released version that has 9.2 support graphmod = assert hsSuper.graphmod != "1.4.5.1"; hsSelf.callPackage ./extra-pkgs/graphmod-1.4.5.1.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 { }; # TODO(grfn): port to brick 1.4 # Breaking changes since 0.68: # - handleEditorEvent takes a BrickEvent (0.72) # - EventM gains an additional type argument (1.0) brick = hsSelf.callPackage ./extra-pkgs/brick-0.71.1.nix { }; # TODO(sterni): upstream into nixpkgs binary-orphans = haskellLib.addBuildDepends [ hsSelf.OneTuple ] hsSuper.binary-orphans; }; }; }; }