self: super: { polite-merge = if builtins.hasAttr "polite-merge" super then super.polite-merge else self.callPackage ({ fetchgit, git, stdenv, }: stdenv.mkDerivation rec { pname = "polite-merge"; version = "2.4"; src = fetchgit { url = "https://scottworley.com/polite-merge.git"; rev = version; sha256 = "1p6ivaay3bk4vvqqic7g23xrhkkq8z19zhsaxkav8kk90s2bmmza"; }; postUnpack = "patchShebangs ."; checkInputs = [ git ]; doCheck = true; preInstall = "export prefix"; }) { }; }