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/*
* add.c
*
* Copyright (c) 2002-2007 by Judd Vinet <jvinet@zeroflux.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"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <alpm.h>
#include <alpm_list.h>
/* pacman */
#include "pacman.h"
#include "callback.h"
#include "conf.h"
#include "util.h"
/* Free the current transaction and print an error if unsuccessful */
static int add_cleanup(void)
{
int ret = alpm_trans_release();
if(ret != 0) {
pm_printf(PM_LOG_ERROR, _("failed to release transaction (%s)\n"),
alpm_strerrorlast());
ret = 1;
}
return(ret);
}
/**
* @brief Upgrade a specified list of packages.
*
* @param targets a list of packages (as strings) to upgrade
*
* @return 0 on success, 1 on failure
*/
int pacman_upgrade(alpm_list_t *targets)
{
/* this is basically just a remove-then-add process. pacman_add() will */
/* handle it */
config->upgrade = 1;
return(pacman_add(targets));
}
/**
* @brief Add a specified list of packages which cannot already be installed.
*
* @param targets a list of packages (as strings) to add
*
* @return 0 on success, 1 on failure
*/
int pacman_add(alpm_list_t *targets)
{
alpm_list_t *i, *data = NULL;
pmtranstype_t transtype = PM_TRANS_TYPE_ADD;
int retval = 0;
if(targets == NULL) {
pm_printf(PM_LOG_ERROR, _("no targets specified (use -h for help)\n"));
return(1);
}
/* Check for URL targets and process them
*/
for(i = targets; i; i = alpm_list_next(i)) {
if(strstr(i->data, "://")) {
char *str = alpm_fetch_pkgurl(i->data);
if(str == NULL) {
return(1);
} else {
free(i->data);
i->data = str;
}
}
}
/* Step 1: create a new transaction */
if(config->upgrade == 1) {
/* if upgrade flag was set, change this to an upgrade transaction */
transtype = PM_TRANS_TYPE_UPGRADE;
}
if(alpm_trans_init(transtype, config->flags, cb_trans_evt,
cb_trans_conv, cb_trans_progress) == -1) {
/* TODO: error messages should be in the front end, not the back */
fprintf(stderr, _("error: %s\n"), alpm_strerrorlast());
if(pm_errno == PM_ERR_HANDLE_LOCK) {
/* TODO this and the 2 other places should probably be on stderr */
printf(_(" if you're sure a package manager is not already\n"
" running, you can remove %s.\n"), alpm_option_get_lockfile());
}
return(1);
}
/* add targets to the created transaction */
printf(_("loading package data... "));
for(i = targets; i; i = alpm_list_next(i)) {
char *targ = alpm_list_getdata(i);
if(alpm_trans_addtarget(targ) == -1) {
fprintf(stderr, _("error: failed to add target '%s' (%s)"), targ,
alpm_strerrorlast());
add_cleanup();
return(1);
}
}
printf(_("done.\n"));
/* Step 2: "compute" the transaction based on targets and flags */
/* TODO: No, compute nothing. This is stupid. */
if(alpm_trans_prepare(&data) == -1) {
fprintf(stderr, _("error: failed to prepare transaction (%s)\n"),
alpm_strerrorlast());
switch(pm_errno) {
case PM_ERR_UNSATISFIED_DEPS:
for(i = data; i; i = alpm_list_next(i)) {
pmdepmissing_t *miss = alpm_list_getdata(i);
pmdepend_t *dep = alpm_miss_get_dep(miss);
char *depstring = alpm_dep_get_string(dep);
/* TODO indicate if the error was a virtual package or not:
* :: %s: requires %s, provided by %s
*/
printf(_(":: %s: requires %s\n"), alpm_miss_get_target(miss),
depstring);
free(depstring);
}
break;
case PM_ERR_CONFLICTING_DEPS:
for(i = data; i; i = alpm_list_next(i)) {
pmconflict_t *conflict = alpm_list_getdata(i);
printf(_(":: %s: conflicts with %s"),
alpm_conflict_get_package1(conflict), alpm_conflict_get_package2(conflict));
}
break;
case PM_ERR_FILE_CONFLICTS:
for(i = data; i; i = alpm_list_next(i)) {
pmfileconflict_t *conflict = alpm_list_getdata(i);
switch(alpm_fileconflict_get_type(conflict)) {
case PM_FILECONFLICT_TARGET:
printf(_("%s exists in both '%s' and '%s'\n"),
alpm_fileconflict_get_file(conflict),
alpm_fileconflict_get_target(conflict),
alpm_fileconflict_get_ctarget(conflict));
break;
case PM_FILECONFLICT_FILESYSTEM:
printf(_("%s: %s exists in filesystem\n"),
alpm_fileconflict_get_target(conflict),
alpm_fileconflict_get_file(conflict));
break;
}
}
printf(_("\nerrors occurred, no packages were upgraded.\n"));
break;
default:
break;
}
add_cleanup();
FREELIST(data);
return(1);
}
alpm_list_free(data);
/* Step 3: perform the installation */
if(alpm_trans_commit(NULL) == -1) {
fprintf(stderr, _("error: failed to commit transaction (%s)\n"), alpm_strerrorlast());
add_cleanup();
return(1);
}
retval = add_cleanup();
return(retval);
}
/* vim: set ts=2 sw=2 noet: */
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