/*****************************************************************************
* configuration.c: Generic lua<->vlc config interface
*****************************************************************************
* Copyright (C) 2007-2008 the VideoLAN team
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/// VLC configuration interactions.
// Functions to query or change VLC configuration options
// @module vlc.config
/*
* Preamble
*/
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_configuration.h>
#include "../vlc.h"
#include "../libs.h"
/// Config handling.
// Functions to query or manipulate VLC configuration options.
// @section config_handling
/// Get a VLC config options value.
//
// Get the VLC configuration option `name`'s value.
// @function get
// @tparam string name Option name to get the value from
// @treturn string|int|bool|number The option value
// @raise Errors for an unknown option
static int vlclua_config_get( lua_State *L )
{
const char *psz_name = luaL_checkstring( L, 1 );
switch( config_GetType( psz_name ) )
{
case VLC_VAR_STRING:
{
char *psz = config_GetPsz( psz_name );
lua_pushstring( L, psz );
free( psz );
break;
}
case VLC_VAR_INTEGER:
lua_pushinteger( L, config_GetInt( psz_name ) );
break;
case VLC_VAR_BOOL:
lua_pushboolean( L, config_GetInt( psz_name ) );
break;
case VLC_VAR_FLOAT:
lua_pushnumber( L, config_GetFloat( psz_name ) );
break;
default:
return vlclua_error( L );
}
return 1;
}
/// Set a VLC config options value.
//
// Set the VLC configuration option `name`'s value.
// @function set
// @tparam string name Option name to set the value for
// @tparam string|int|bool|number value Value to set the option to
// @raise Errors for an unknown option
static int vlclua_config_set( lua_State *L )
{
const char *psz_name = luaL_checkstring( L, 1 );
switch( config_GetType( psz_name ) )
{
case VLC_VAR_STRING:
config_PutPsz( psz_name, luaL_checkstring( L, 2 ) );
break;
case VLC_VAR_INTEGER:
config_PutInt( psz_name, luaL_checkinteger( L, 2 ) );
break;
case VLC_VAR_BOOL:
config_PutInt( psz_name, luaL_checkboolean( L, 2 ) );
break;
case VLC_VAR_FLOAT:
config_PutFloat( psz_name, luaL_checknumber( L, 2 ) );
break;
default:
return vlclua_error( L );
}
return 0;
}
/// Directories configuration.
// Functions to query _special_ directories for the system VLC is running on.
// @section config_dirs
/// Get the VLC data directory.
//
// Returns the path of the VLC data directory (`VLC_PKG_DATA_DIR`).
// @function datadir
// @treturn string Path to the VLC data directory
static int vlclua_datadir( lua_State *L )
{
char *psz_data = config_GetSysPath(VLC_PKG_DATA_DIR, NULL);
lua_pushstring( L, psz_data );
free( psz_data );
return 1;
}
/// Get the user's VLC data directory.
//
// Returns the path of the user's VLC data directory (`VLC_USERDATA_DIR`).
// @function userdatadir
// @treturn string Path to the user's VLC data directory
static int vlclua_userdatadir( lua_State *L )
{
char *dir = config_GetUserDir( VLC_USERDATA_DIR );
lua_pushstring( L, dir );
free( dir );
return 1;
}
/// Get the user's home directory.
//
// Returns the path of the user's home directory (`VLC_HOME_DIR`).
// @function homedir
// @treturn string Path to the user's home directory
static int vlclua_homedir( lua_State *L )
{
char *home = config_GetUserDir( VLC_HOME_DIR );
lua_pushstring( L, home );
free( home );
return 1;
}
/// Get the user's VLC config directory.
//
// Returns the path of the user's VLC configuration directory (`VLC_CONFIG_DIR`).
// @function configdir
// @treturn string Path to the user's VLC config directory
static int vlclua_configdir( lua_State *L )
{
char *dir = config_GetUserDir( VLC_CONFIG_DIR );
lua_pushstring( L, dir );
free( dir );
return 1;
}
/// Get the user's VLC cache directory.
//
// Returns the path of the user's VLC cache directory (`VLC_CACHE_DIR`).
// @function cachedir
// @treturn string Path to the user's VLC cache directory
static int vlclua_cachedir( lua_State *L )
{
char *dir = config_GetUserDir( VLC_CACHE_DIR );
lua_pushstring( L, dir );
free( dir );
return 1;
}
/// Get a list of possible data directories.
//
// Returns the list of possible data directories in order
// of priority, appended by `name`.
// @function datadir_list
// @tparam string name Name for the data directory
// @treturn {string,...} Paths to possible data directories, sorted by priority
static int vlclua_datadir_list( lua_State *L )
{
const char *psz_dirname = luaL_checkstring( L, 1 );
char **ppsz_dir_list = NULL;
int i = 1;
if( vlclua_dir_list( psz_dirname, &ppsz_dir_list )
!= VLC_SUCCESS )
return 0;
lua_newtable( L );
for( char **ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
{
lua_pushstring( L, *ppsz_dir );
lua_rawseti( L, -2, i );
i ++;
}
vlclua_dir_list_free( ppsz_dir_list );
return 1;
}
/*
*
*/
static const luaL_Reg vlclua_config_reg[] = {
{ "get", vlclua_config_get },
{ "set", vlclua_config_set },
{ "datadir", vlclua_datadir },
{ "userdatadir", vlclua_userdatadir },
{ "homedir", vlclua_homedir },
{ "configdir", vlclua_configdir },
{ "cachedir", vlclua_cachedir },
{ "datadir_list", vlclua_datadir_list },
{ NULL, NULL }
};
void luaopen_config( lua_State *L )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_config_reg );
lua_setfield( L, -2, "config" );
}
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