vis: simplify thanks to lua update

pkgs/applications/editors/vis/default.nix

···
 { lib, stdenv, fetchFromGitHub, pkg-config, makeWrapper, makeDesktopItem
-, ncurses, libtermkey, lpeg, lua
+, ncurses, libtermkey, lua
 , acl ? null, libselinux ? null
 }:
 
+let
+  luaEnv = lua.withPackages(ps: [ps.lpeg]);
+in
 stdenv.mkDerivation rec {
   pname = "vis";
   version  = "0.7";
···
   buildInputs = [
     ncurses
     libtermkey
-    lua
-    lpeg
+    luaEnv
   ] ++ lib.optionals stdenv.isLinux [
     acl
     libselinux
···
     patchShebangs ./configure
   '';
 
-  LUA_CPATH="${lpeg}/lib/lua/${lua.luaversion}/?.so;";
-  LUA_PATH="${lpeg}/share/lua/${lua.luaversion}/?.lua";
-
   postInstall = ''
     mkdir -p "$out/share/applications"
     cp $desktopItem/share/applications/* $out/share/applications
     echo wrapping $out/bin/vis with runtime environment
     wrapProgram $out/bin/vis \
-      --prefix LUA_CPATH ';' "${lpeg}/lib/lua/${lua.luaversion}/?.so" \
-      --prefix LUA_PATH ';' "${lpeg}/share/lua/${lua.luaversion}/?.lua" \
+      --prefix LUA_CPATH ';' "${luaEnv}/lib/lua/${lua.luaversion}/?.so" \
+      --prefix LUA_PATH ';' "${luaEnv}/share/lua/${lua.luaversion}/?.lua" \
       --prefix VIS_PATH : "\$HOME/.config:$out/share/vis"
   '';
 

pkgs/top-level/all-packages.nix

···
 
   neovim-remote = callPackage ../applications/editors/neovim/neovim-remote.nix { };
 
-  vis = callPackage ../applications/editors/vis {
-    inherit (lua52Packages) lpeg;
-  };
+  vis = callPackage ../applications/editors/vis { };
 
   viw = callPackage ../applications/editors/viw { };