From a6dfaad92241ff299131d49d71c53ca4e6661e12 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mat=C3=ADas=20Lang?= <matiasl@infobytesec.com>
Date: Tue, 19 May 2020 00:50:24 -0300
Subject: [PATCH] mpv: fix lua path

mpv uses lua without directly executing the "lua" binary, so prefixing
$PATH wasn't enough. Without this change, lua scripts were unable to
import luasocket.
---
 pkgs/applications/video/mpv/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/applications/video/mpv/default.nix b/pkgs/applications/video/mpv/default.nix
index 50b67f455581..8bb5d5aca1f4 100644
--- a/pkgs/applications/video/mpv/default.nix
+++ b/pkgs/applications/video/mpv/default.nix
@@ -184,6 +184,8 @@ in stdenv.mkDerivation rec {
 
   # Ensure youtube-dl is available in $PATH for mpv
   wrapperFlags =
+    ''--prefix LUA_CPATH ';' "${luaEnv}/lib/lua/${lua.luaversion}/?.so" \'' +
+    ''--prefix LUA_PATH ';' "${luaEnv}/share/lua/${lua.luaversion}/?.lua" \'' +
     ''--prefix PATH : "${luaEnv}/bin" \''
   + optionalString youtubeSupport ''
       --prefix PATH : "${youtube-dl}/bin" \