Haskell project summoner nix

src/posts/0011-Haskell-Projects/shell.nix

@@ -0,0 +1,40 @@
+let
+     config = { allowBroken = true; };
+in
+   { nixpkgs ? import (fetchGit {
+     name = "nixos-release-19.09";
+     url = "https://github.com/NixOS/nixpkgs";
+     # obtained via
+     # git ls-remote https://github.com/nixos/nixpkgs master
+     ref = "refs/heads/nixpkgs-19.09-darwin";
+     rev = "d5291756487d70bc336e33512a9baf9fa1788faf";
+   }) { inherit config; } }:
+   let
+     inherit (nixpkgs) pkgs;
+     inherit (pkgs) haskellPackages;
+
+     haskellDeps = ps: with ps; [
+       base
+       protolude
+       containers
+     ];
+
+     ghc = haskellPackages.ghcWithPackages haskellDeps;
+
+     nixPackages = [
+       ghc
+       pkgs.gdb
+       # haskellPackages.haskell-overridez
+       haskellPackages.summoner
+       haskellPackages.summoner-tui
+       haskellPackages.cabal-install
+       haskellPackages.ghcid
+     ];
+   in
+   pkgs.stdenv.mkDerivation {
+     name = "env";
+     buildInputs = nixPackages;
+     shellHook = ''
+        export PS1="\n\[[hs:\033[1;32m\]\W\[\033[0m\]]> "
+     '';
+   }