src/pacman/upgrade.c


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/*
 *  upgrade.c
 *
 *  Copyright (c) 2006-2017 Pacman Development Team <pacman-dev@archlinux.org>
 *  Copyright (c) 2002-2006 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 <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <alpm.h>
#include <alpm_list.h>

/* pacman */
#include "pacman.h"
#include "conf.h"
#include "util.h"

/**
 * @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)
{
        int retval = 0, *file_is_remote;
        alpm_list_t *i;
        unsigned int n, num_targets;

        if(targets == NULL) {
                pm_printf(ALPM_LOG_ERROR, _("no targets specified (use -h for help)\n"));
                return 1;
        }

        num_targets = alpm_list_count(targets);

        /* Check for URL targets and process them */
        file_is_remote = malloc(num_targets * sizeof(int));
        if(file_is_remote == NULL) {
                pm_printf(ALPM_LOG_ERROR, _("memory exhausted\n"));
                return 1;
        }

        for(i = targets, n = 0; i; i = alpm_list_next(i), n++) {
                if(strstr(i->data, "://")) {
                        char *str = alpm_fetch_pkgurl(config->handle, i->data);
                        if(str == NULL) {
                                pm_printf(ALPM_LOG_ERROR, "'%s': %s\n",
                                                (char *)i->data, alpm_strerror(alpm_errno(config->handle)));
                                retval = 1;
                        } else {
                                free(i->data);
                                i->data = str;
                                file_is_remote[n] = 1;
                        }
                } else {
                        file_is_remote[n] = 0;
                }
        }

        if(retval) {
                goto fail_free;
        }

        /* Step 1: create a new transaction */
        if(trans_init(config->flags, 1) == -1) {
                retval = 1;
                goto fail_free;
        }

        printf(_("loading packages...\n"));
        /* add targets to the created transaction */
        for(i = targets, n = 0; i; i = alpm_list_next(i), n++) {
                const char *targ = i->data;
                alpm_pkg_t *pkg;
                int siglevel;

                if(file_is_remote[n]) {
                        siglevel = alpm_option_get_remote_file_siglevel(config->handle);
                } else {
                        siglevel = alpm_option_get_local_file_siglevel(config->handle);
                }

                if(alpm_pkg_load(config->handle, targ, 1, siglevel, &pkg) != 0) {
                        pm_printf(ALPM_LOG_ERROR, "'%s': %s\n",
                                        targ, alpm_strerror(alpm_errno(config->handle)));
                        retval = 1;
                        continue;
                }
                if(alpm_add_pkg(config->handle, pkg) == -1) {
                        pm_printf(ALPM_LOG_ERROR, "'%s': %s\n",
                                        targ, alpm_strerror(alpm_errno(config->handle)));
                        alpm_pkg_free(pkg);
                        retval = 1;
                        continue;
                }
                config->explicit_adds = alpm_list_add(config->explicit_adds, pkg);
        }

        if(retval) {
                goto fail_release;
        }

        free(file_is_remote);

        /* now that targets are resolved, we can hand it all off to the sync code */
        return sync_prepare_execute();

fail_release:
        trans_release();
fail_free:
        free(file_is_remote);

        return retval;
}

/* vim: set noet: */