config.nix

{ pkgs }:

let
  vimrc = import ./vim/vimrc.nix {};

  vimPlugins = import ./vim/vimPlugins.nix { inherit pkgs; };
in

with pkgs; rec {
  allowBroken = true;
  allowUnfree = true;

  vim = {
    gui = "macvim";
  };

  haskellPackageOverrides = with pkgs.haskellPackages.lib; self: super: {
    ghc-mod = pkgs.haskellPackages.callPackage ./haskell/ghc-mod.nix {};
  };

  packageOverrides = pkgs : rec {
    # Vim plugins
    vimrcConfig = {
      vam.knownPlugins = pkgs.vimPlugins // vimPlugins.expr;
      vam.pluginDictionaries = vimPlugins.dict;
      customRC = vimrc.config;
    };

    # Shell Env
    shellEnv = with pkgs; buildEnv {
      name = "shell-env";
      paths = [
        pkgs.bashInteractive
        pkgs.bashCompletion
        pkgs.python
        python27Packages.virtualenv
        python27Packages.pip
        pkgs.wget
        pkgs.git
        pkgs.silver-searcher
        pkgs.gnupg
        pkgs.cmake
        pkgs.tmux
        pkgs.tmuxinator
      ];
    };

    # Vim
    vimEnv = with pkgs; buildEnv {
      name = "vim-env";
      paths = [
        (vim_configurable.customize {
          name = "vim";
          vimrcConfig = vimrcConfig;
        })
      ];
    };

    # Neovim
    neoVimEnv = with pkgs; buildEnv {
      name = "neovim-env";
      paths = [
        (neovim.override {
          configure = vimrcConfig;
        })
      ];
    };

    # GHC 7.6.3
    ghc763 = pkgs.haskell.packages.ghc763.ghcWithPackages (
      haskellPackages: with haskellPackages; [
        cabal-install
        cabal2nix
        ghc-mod
      ]
    );

    ghc784 = pkgs.haskell.packages.ghc784.ghcWithPackages (
      haskellPackages: with haskellPackages; [
        cabal-install
        cabal2nix
        ghc-mod
      ]
    );

    # GHC 7.10.1
    ghc7101 = pkgs.haskell.packages.ghc7101.ghcWithPackages (
      haskellPackages: with haskellPackages; [
        cabal-install
        cabal2nix
        ghc-mod
      ]
    );
  };
}