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/*!A cross-platform build utility based on Lua
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright (C) 2015-present, Xmake Open Source Community.
*
* @author ruki
* @file translate.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "translate"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
tb_int_t xm_path_translate(lua_State *lua) {
tb_assert_and_check_return_val(lua, 0);
// get the path
size_t path_size = 0;
tb_char_t const *path = luaL_checklstring(lua, 1, &path_size);
tb_check_return_val(path, 0);
// get the option argument, e.g. {normalize = true}
tb_bool_t normalize = tb_false;
if (lua_istable(lua, 2)) {
lua_pushstring(lua, "normalize");
lua_gettable(lua, 2);
if (lua_toboolean(lua, -1)) {
normalize = tb_true;
}
lua_pop(lua, 1);
}
// do path:translate()
tb_char_t buff[TB_PATH_MAXN];
tb_char_t* data = buff;
tb_size_t maxn = sizeof(buff);
tb_size_t size = tb_path_translate_to(path, (tb_size_t)path_size, data, maxn, normalize);
if (!size) {
/* use a larger heap buffer for the long path to avoid stack buffer overflow,
* because tb_path_translate_to() does not truncate the output.
* https://github.com/xmake-io/xmake/issues/6962
*
* note: we cannot expand maxn for the `~` prefixed path,
* because tbox expands the home directory with an internal TB_PATH_MAXN buffer.
*/
maxn = (tb_size_t)path_size + TB_PATH_MAXN;
data = (tb_char_t *)lua_newuserdata(lua, maxn);
size = tb_path_translate_to(path, (tb_size_t)path_size, data, maxn, normalize);
}
if (size) {
lua_pushlstring(lua, data, (size_t)size);
} else {
lua_pushnil(lua);
}
return 1;
}
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