Add better shell.nix

Author: mpickering

shell.nix

@@ -1,69 +1,5 @@
-# This shell.nix file is designed for use with cabal build
-# It does **not** aim to replace Cabal
-
-# Maintaining this file:
-#
-#     - Bump the nixpkgs version using `niv update nixpkgs`
-#     - To edit the set of local packages:
-#       1. Declare them in nix/default.nix
-#       2. Edit the list of packages below
-#
-# For more details: https://github.com/NixOS/nixpkgs/blob/20.03/pkgs/development/haskell-modules/make-package-set.nix#L256
-
-
-{ compiler ? "default",
-  withHoogle ? false,
-  nixpkgs ? import ./nix {}
- }:
-
-with nixpkgs;
-
-let defaultCompiler = "ghc" + lib.replaceStrings ["."] [""] haskellPackages.ghc.version;
-    haskellPackagesForProject =
-        if compiler == "default"
-            then ourHaskell.packages.${defaultCompiler}
-            else ourHaskell.packages.${compiler};
-
-    packages = p: [ p.haskell-language-server
-                    p.ghcide
-                    p.shake-bench
-                    p.hie-compat
-                    p.hls-plugin-api
-                    p.hls-class-plugin
-                    p.hls-haddock-comments-plugin
-                    p.hls-eval-plugin
-                    p.hls-explicit-imports-plugin
-                    p.hls-hlint-plugin
-                    p.hls-retrie-plugin
-                    p.hls-splice-plugin
-                    p.hls-tactics-plugin
-                  ];
-
-    isSupported = compiler == "default" || compiler == defaultCompiler;
-in
-haskellPackagesForProject.shellFor {
-  inherit withHoogle;
-  doBenchmark = true;
-  packages = p: if isSupported then packages p else [p.ghc-paths];
-  buildInputs = [
-    gmp
-    zlib
-    ncurses
-    capstone
-    tracy
-
-    haskellPackages.cabal-install
-    haskellPackages.hlint
-    haskellPackages.ormolu
-    haskellPackages.stylish-haskell
-    haskellPackages.opentelemetry-extra
-
-  ];
-  src = null;
-  shellHook = ''
-    export LD_LIBRARY_PATH=${gmp}/lib:${zlib}/lib:${ncurses}/lib:${capstone}/lib
-    export DYLD_LIBRARY_PATH=${gmp}/lib:${zlib}/lib:${ncurses}/lib:${capstone}/lib
-    export PATH=$PATH:$HOME/.local/bin
-    ${pre-commit-check.shellHook}
-  '';
-}
+with { pkgs = import <nixpkgs> {}; };
+pkgs.mkShell
+  { buildInputs = [ pkgs.haskell.compiler.ghc8102 pkgs.zlib pkgs.haskellPackages.cabal-install pkgs.git-lfs ];
+    shellHook=''export LD_LIBRARY_PATH=${pkgs.gmp}/lib:${pkgs.zlib}/lib:${pkgs.ncurses}/lib'';
+  }