emacs-override-flymake-attempt.nix

# run with:
# export HOME=$(pwd)
# nix-shell --pure emacs.nix --keep HOME --run "env HOME=$HOME emacs --eval='(load \"$HOME/init.el\")'"
{ pkgs ? (builtins.fetchGit {
  name = "nixpkgs-unstable-2020-04-14";
  url = "https://github.com/NixOS/nixpkgs.git";
  ref = "nixpkgs-unstable";
  rev = "7e07846d99bed4bd7272b1626038e77a78aa36f6";
})
  { overlays = [
      (self: super: {
        flymake = super.fetchGit {
          url = "git@github.com:flymake/emacs-flymake.git";
          rev = "8701c806d5e8f4e2c6f7dea461273482ad89c029";
          ref = "master";
        };
      })
    ];
  }
}:
let
  myEmacs = pkgs.emacs;
  emacsWithPackages = (pkgs.emacsPackagesGen myEmacs).emacsWithPackages;
  emacsPkgs = emacsWithPackages (epkgs: (with epkgs.melpaPackages; [
    epkgs.haskellMode
    epkgs.flymake
  ])); 
in
(pkgs.stdenv.mkDerivation {
  name = "debug-flymake-annoying-clutter";
  # NOTE this is the wrong place I first thought I could put overlays
  # then I read https://nixos.org/nixpkgs/manual/#chap-overlays
  # though that chapter is heavily file focused and not "use an overlay in your nix expression like this"
  # overlays = [ (self: super: {}) ];
  buildInputs = [
    emacsPkgs
  ];
})