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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) 2015-2020, TBOOX Open Source Group.
*
* @author ruki
* @file open.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "process.open"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
#include "../io/prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
// p = process.open(command, {outpath = "", errpath = "", envs = {"PATH=xxx", "XXX=yyy"}})
tb_int_t xm_process_open(lua_State* lua)
{
// check
tb_assert_and_check_return_val(lua, 0);
// get command
size_t command_size = 0;
tb_char_t const* command = luaL_checklstring(lua, 1, &command_size);
tb_check_return_val(command, 0);
// init attributes
tb_process_attr_t attr = {0};
// get option arguments
tb_size_t envn = 0;
tb_char_t const* envs[256] = {0};
tb_char_t const* outpath = tb_null;
tb_char_t const* errpath = tb_null;
xm_io_file_t* outfile = tb_null;
xm_io_file_t* errfile = tb_null;
if (lua_istable(lua, 2))
{
// get outpath
lua_pushstring(lua, "outpath");
lua_gettable(lua, 2);
outpath = lua_tostring(lua, -1);
lua_pop(lua, 1);
// get errpath
lua_pushstring(lua, "errpath");
lua_gettable(lua, 2);
errpath = lua_tostring(lua, -1);
lua_pop(lua, 1);
// get outfile
if (!outpath)
{
lua_pushstring(lua, "outfile");
lua_gettable(lua, 3);
outfile = (xm_io_file_t*)lua_touserdata(lua, -1);
lua_pop(lua, 1);
}
// get errfile
if (!errpath)
{
lua_pushstring(lua, "errfile");
lua_gettable(lua, 3);
errfile = (xm_io_file_t*)lua_touserdata(lua, -1);
lua_pop(lua, 1);
}
// get environments
lua_pushstring(lua, "envs");
lua_gettable(lua, 2);
if (lua_istable(lua, -1))
{
// get environment variables count
tb_size_t count = (tb_size_t)lua_objlen(lua, -1);
// get all passed environment variables
tb_size_t i;
for (i = 0; i < count; i++)
{
// get envs[i]
lua_pushinteger(lua, i + 1);
lua_gettable(lua, -2);
// is string?
if (lua_isstring(lua, -1))
{
// add this environment value
if (envn + 1 < tb_arrayn(envs))
envs[envn++] = lua_tostring(lua, -1);
else
{
// error
lua_pushfstring(lua, "envs is too large(%lu > %d) for process.openv", envn, tb_arrayn(envs) - 1);
lua_error(lua);
}
}
else
{
// error
lua_pushfstring(lua, "invalid envs[%ld] type(%s) for process.openv", i, luaL_typename(lua, -1));
lua_error(lua);
}
// pop it
lua_pop(lua, 1);
}
}
lua_pop(lua, 1);
}
// redirect stdout?
if (outpath)
{
// redirect stdout to file
attr.outpath = outpath;
attr.outmode = TB_FILE_MODE_RW | TB_FILE_MODE_TRUNC | TB_FILE_MODE_CREAT;
attr.outtype = TB_PROCESS_REDIRECT_TYPE_FILEPATH;
}
else if (outfile && xm_io_file_is_file(outfile))
{
tb_file_ref_t rawfile = tb_null;
if (tb_stream_ctrl(outfile->stream, TB_STREAM_CTRL_FILE_GET_FILE, &rawfile) && rawfile)
{
attr.outfile = rawfile;
attr.outtype = TB_PROCESS_REDIRECT_TYPE_FILE;
}
}
// redirect stderr?
if (errpath)
{
// redirect stderr to file
attr.errpath = errpath;
attr.errmode = TB_FILE_MODE_RW | TB_FILE_MODE_TRUNC | TB_FILE_MODE_CREAT;
attr.errtype = TB_PROCESS_REDIRECT_TYPE_FILEPATH;
}
else if (errfile && xm_io_file_is_file(errfile))
{
tb_file_ref_t rawfile = tb_null;
if (tb_stream_ctrl(errfile->stream, TB_STREAM_CTRL_FILE_GET_FILE, &rawfile) && rawfile)
{
attr.errfile = rawfile;
attr.errtype = TB_PROCESS_REDIRECT_TYPE_FILE;
}
}
// set the new environments
if (envn > 0) attr.envp = envs;
// init process
tb_process_ref_t process = (tb_process_ref_t)tb_process_init_cmd(command, &attr);
if (process) lua_pushlightuserdata(lua, (tb_pointer_t)process);
else lua_pushnil(lua);
return 1;
}
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