improve error messages in case loading applause.lua fails

1 files changed, 8 insertions, 4 deletions

diff --git a/applause.c b/applause.c
index f0e5034..99b5453 100644
--- a/applause.c
+++ b/applause.c
@@ -886,13 +886,17 @@ main(int argc, char **argv)
 
 	luaL_openlibs(L);
 
-	if (luaL_loadfile(L, LUA_MODULE) || lua_pcall(L, 0, 0, 0)) {
-		/* FIXME: pop error message */
-		fprintf(stderr, "Error loading Lua module %s.\n",
-		        LUA_MODULE);
+	lua_pushcfunction(L, traceback);
+
+	if (luaL_loadfile(L, LUA_MODULE) || lua_pcall(L, 0, 0, -2)) {
+		fprintf(stderr, "Error loading Lua module %s: %s\n",
+		        LUA_MODULE, lua_tostring(L, -1));
 		exit(EXIT_FAILURE);
 	}
 
+	/* remove traceback function */
+	lua_remove(L, -1);
+
 	init_audio(buffer_size);
 
 	/*