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/*
* peas-lua-utils.c
* This file is part of libpeas
*
* Copyright (C) 2014 - Garrett Regier
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "peas-lua-utils.h"
#include <string.h>
#include <lauxlib.h>
#include <lualib.h>
gboolean
peas_lua_utils_require (lua_State *L,
const gchar *name)
{
luaL_checkstack (L, 2, "");
lua_getglobal (L, "require");
lua_pushstring (L, name);
if (lua_pcall (L, 1, 1, 0) != 0)
{
g_warning ("Error failed to load Lua module '%s': %s",
name, lua_tostring (L, -1));
/* Pop error */
lua_pop (L, 1);
return FALSE;
}
if (!lua_istable (L, -1))
{
g_warning ("Error invalid Lua module for '%s': "
"expected table, got: %s",
name, lua_tostring (L, -1));
/* Pop the module's table */
lua_pop (L, 1);
return FALSE;
}
return TRUE;
}
gboolean
peas_lua_utils_check_version (lua_State *L,
guint req_major,
guint req_minor,
guint req_micro)
{
const gchar *version_str;
gchar **version_str_parts;
gint n_version_parts;
gint *version_parts;
gint i;
gboolean success = FALSE;
lua_getfield (L, -1, "_VERSION");
version_str = lua_tostring (L, -1);
version_str_parts = g_strsplit (version_str, ".", 0);
n_version_parts = g_strv_length (version_str_parts);
version_parts = g_newa (gint, n_version_parts);
for (i = 0; i < n_version_parts; ++i)
{
gchar *end;
version_parts[i] = g_ascii_strtoll (version_str_parts[i], &end, 10);
if (*end != '\0' ||
version_parts[i] < 0 ||
version_parts[i] == G_MAXINT64)
{
g_warning ("Invalid version string: %s", version_str);
goto error;
}
}
if (n_version_parts < 3 ||
version_parts[0] != req_major ||
version_parts[1] < req_minor ||
(version_parts[1] == req_minor && version_parts[2] < req_micro))
{
g_warning ("Version mismatch %d.%d.%d is required, found %s",
req_major, req_minor, req_micro, version_str);
goto error;
}
success = TRUE;
error:
/* Pop _VERSION */
lua_pop (L, 1);
g_strfreev (version_str_parts);
return success;
}
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