hakyll-nix/shell.nix


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{ nixpkgs ? import <nixpkgs> {}
, compiler ? "default"
, hakyllSrc ? ./defaultsite
, doBenchmark ? false }:

let

  inherit (nixpkgs) pkgs;

  f = import ./default.nix hakyllSrc;

  haskellPackages = if compiler == "default"
                    then pkgs.haskellPackages
                    else pkgs.haskell.packages.${compiler};

  variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;

  drv = variant (haskellPackages.callPackage f {});

in
  if pkgs.lib.inNixShell then drv.env else drv