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pacman/lib/libalpm/alpm.c
Dan McGee f45369800a Check local DB version before continuing transaction
Ensure we have a local DB version that is up to par with what we expect
before we go down any road that might modify it. This should prevent
stupid mistakes with the 3.5.X upgrade and people not running
pacman-db-upgrade after the transaction as they will need to.

Signed-off-by: Dan McGee <dan@archlinux.org>
2011-02-28 10:46:00 -06:00

110 lines
2.6 KiB
C

/*
* alpm.c
*
* Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
/* connection caching setup */
#ifdef HAVE_LIBFETCH
#include <fetch.h>
#endif
/* libalpm */
#include "alpm.h"
#include "alpm_list.h"
#include "handle.h"
#include "util.h"
/* Globals */
enum _pmerrno_t pm_errno SYMEXPORT;
/** \addtogroup alpm_interface Interface Functions
* @brief Functions to initialize and release libalpm
* @{
*/
/** Initializes the library. This must be called before any other
* functions are called.
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int SYMEXPORT alpm_initialize(void)
{
ASSERT(handle == NULL, RET_ERR(PM_ERR_HANDLE_NOT_NULL, -1));
handle = _alpm_handle_new();
if(handle == NULL) {
RET_ERR(PM_ERR_MEMORY, -1);
}
if(_alpm_db_register_local() == NULL) {
/* error code should be set */
_alpm_handle_free(handle);
handle = NULL;
return(-1);
}
#ifdef ENABLE_NLS
bindtextdomain("libalpm", LOCALEDIR);
#endif
#ifdef HAVE_LIBFETCH
fetchConnectionCacheInit(5, 1);
#endif
return(0);
}
/** Release the library. This should be the last alpm call you make.
* @return 0 on success, -1 on error (pm_errno is set accordingly)
*/
int SYMEXPORT alpm_release(void)
{
ALPM_LOG_FUNC;
ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
if(alpm_db_unregister_all() == -1) {
return(-1);
}
_alpm_handle_free(handle);
handle = NULL;
#ifdef HAVE_LIBFETCH
fetchConnectionCacheClose();
#endif
return(0);
}
/** @} */
/** @defgroup alpm_misc Miscellaneous Functions
* @brief Various libalpm functions
*/
/* Get the version of library */
const char SYMEXPORT *alpm_version(void) {
return(LIB_VERSION);
}
/* vim: set ts=2 sw=2 noet: */