[wesnoth-commits] [wesnoth/wesnoth] 8a33ad: fix #4256 wesnoth.require with relative paths

[gfgtdf]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: 8a33ad0bf1f3c152f7da6bd8c352cd2617d285c3
      https://github.com/wesnoth/wesnoth/commit/8a33ad0bf1f3c152f7da6bd8c352cd2617d285c3
  Author: gfgtdf <daniel.gfgtdf at gmail.com>
  Date:   2019-08-24 (Sat, 24 Aug 2019)

  Changed paths:
    M data/lua/package.lua
    M src/scripting/lua_fileops.cpp
    M src/scripting/lua_fileops.hpp
    M src/scripting/lua_kernel_base.cpp

  Log Message:
  -----------
  fix #4256 wesnoth.require with relative paths

now wesnoth.require is able to detect when the same file is
required two times using different names (like a/../a/b.lua
a/b.lua) and will only execute it once.

for this a new function wesnoth.canonical_path was added