update Nix flake

flake.nix

@@ -1,34 +1,46 @@
 {
  inputs = {
- nixpkgs.url = "github:nixos/nixpkgs/haskell-updates";
+ nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
  flake-parts.url = "github:hercules-ci/flake-parts";
  haskell-flake.url = "github:srid/haskell-flake";
- generic-data-functions = {
- url = "github:raehik/generic-data-functions";
- flake = false;
- };
  };
- outputs = inputs@{ self, nixpkgs, flake-parts, ... }:
- flake-parts.lib.mkFlake { inherit inputs; } {
- systems = nixpkgs.lib.systems.flakeExposed;
+ outputs = inputs:
+ let
+ # simple devshell for non-dev compilers: really just want `cabal repl`
+ nondevDevShell = compiler: {
+ mkShellArgs.name = "${compiler}-binrep";
+ hoogle = false;
+ tools = _: {
+ hlint = null;
+ haskell-language-server = null;
+ ghcid = null;
+ };
+ };
+ in
+ inputs.flake-parts.lib.mkFlake { inherit inputs; } {
+ systems = inputs.nixpkgs.lib.systems.flakeExposed;
  imports = [ inputs.haskell-flake.flakeModule ];
  perSystem = { self', pkgs, config, ... }: {
- packages.default = self'.packages.binrep;
- haskellProjects.ghc96 = import ./haskell-flake-ghc96.nix pkgs;
- haskellProjects.default = {
- #basePackages = config.haskellProjects.ghc96.outputs.finalPackages;
- packages = {
- #generic-data-functions.source = inputs.generic-data-functions;
- #strongweak.source = "0.6.0";
- #flatparse.source = "0.4.1.0";
- };
- devShell = {
- tools = hp: {
- ghcid = null; # broken on GHC 9.6? fsnotify
- hlint = null; # broken on GHC 9.6?
- haskell-language-server = null; # TAKES AGES TO BUILD FFS
+ packages.default = self'.packages.ghc96-binrep;
+ devShells.default = self'.devShells.ghc96;
+ haskellProjects.ghc96 = {
+ # 2023-11-14: GHC 9.6 base package set is borked
+ # PR: https:/NixOS/nixpkgs/pull/267477
+ basePackages = pkgs.haskell.packages.ghc96.override {
+ overrides = self: super: {
+ fgl = self.fgl_5_8_2_0;
+ th-desugar = self.th-desugar_1_16;
  };
  };
+ devShell.mkShellArgs.name = "ghc96-binrep";
+ };
+ haskellProjects.ghc94 = {
+ basePackages = pkgs.haskell.packages.ghc94;
+ devShell = nondevDevShell "ghc94";
+ };
+ haskellProjects.ghc92 = {
+ basePackages = pkgs.haskell.packages.ghc92;
+ devShell = nondevDevShell "ghc92";
  };
  };
  };