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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 extractlib.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "extractlib"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
#include "ar/prefix.h"
#include "mslib/prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* forward declarations
*/
extern tb_bool_t xm_binutils_ar_extract(tb_stream_ref_t istream, tb_char_t const *outputdir);
extern tb_bool_t xm_binutils_mslib_extract(tb_stream_ref_t istream, tb_char_t const *outputdir, tb_bool_t plain);
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
/* extract static library to directory (Lua interface)
* Supports AR format (.a) and MSVC lib format (.lib)
*
* @param lua the lua state
*
* libraryfile = lua[1]
* outputdir = lua[2]
* plain = lua[3] (optional, default: true)
*
* @return 1 on success, 2 on failure (with error message)
*/
tb_int_t xm_binutils_extractlib(lua_State *lua) {
tb_assert_and_check_return_val(lua, 0);
// get the library file path
tb_char_t const *libraryfile = luaL_checkstring(lua, 1);
tb_check_return_val(libraryfile, 0);
// get the output directory
tb_char_t const *outputdir = luaL_checkstring(lua, 2);
tb_check_return_val(outputdir, 0);
// get the plain mode (optional)
tb_bool_t plain = tb_true;
if (lua_gettop(lua) >= 3 && !lua_isnil(lua, 3)) {
plain = lua_toboolean(lua, 3);
}
// open library file
tb_stream_ref_t istream = tb_stream_init_from_file(libraryfile, TB_FILE_MODE_RO);
if (!istream) {
lua_pushboolean(lua, tb_false);
lua_pushfstring(lua, "open %s failed", libraryfile);
return 2;
}
tb_bool_t ok = tb_false;
tb_char_t const* error_msg = tb_null;
do {
if (!tb_stream_open(istream)) {
error_msg = "open failed";
break;
}
// detect format
tb_int_t format = xm_binutils_format_detect(istream);
if (format < 0) {
error_msg = "cannot detect format";
break;
}
// extract based on format
if (format == XM_BINUTILS_FORMAT_AR) {
// AR archive format (.a or .lib in AR format)
// if the file extension is .lib, we use the msvc lib extractor to support long paths and subdirectories
tb_size_t n = tb_strlen(libraryfile);
if (n > 4 && !tb_strnicmp(libraryfile + n - 4, ".lib", 4)) {
if (!xm_binutils_mslib_extract(istream, outputdir, plain)) {
error_msg = "extract MSVC lib failed";
break;
}
} else {
if (!xm_binutils_ar_extract(istream, outputdir)) {
error_msg = "extract AR archive failed";
break;
}
}
ok = tb_true;
} else if (format == XM_BINUTILS_FORMAT_COFF) {
// MSVC lib format (.lib in COFF format)
// Check if it's actually a library (not just a single object file)
// MSVC lib files can be:
// 1. Import libraries (different format)
// 2. Static libraries (COFF archive format, similar to AR but different)
if (!xm_binutils_mslib_extract(istream, outputdir, plain)) {
error_msg = "extract MSVC lib failed";
break;
}
ok = tb_true;
} else {
error_msg = "unsupported format (only AR and MSVC lib are supported)";
break;
}
} while (0);
if (istream) {
tb_stream_clos(istream);
tb_stream_exit(istream);
}
if (ok) {
lua_pushboolean(lua, tb_true);
return 1;
} else {
lua_pushboolean(lua, tb_false);
if (error_msg) {
lua_pushfstring(lua, "%s %s", error_msg, libraryfile);
} else {
lua_pushfstring(lua, "unknown error for %s", libraryfile);
}
return 2;
}
}
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