deptest.c

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

/* TODO: This should use _alpm_checkdeps() */
int pacman_deptest(alpm_list_t *targets)
{
    int retval = 0;
    alpm_list_t *i;

    if(targets == NULL) {
        return(0);
    }

    for(i = targets; i; i = alpm_list_next(i)) {
        int found = 0;
        pmpkg_t *pkg;
        pmdepend_t *dep;
        const char *target;
        alpm_list_t *j, *provides;

        target = alpm_list_getdata(i);
        dep = alpm_splitdep(target);

        pkg = alpm_db_get_pkg(alpm_option_get_localdb(),
                alpm_dep_get_name(dep));
        if(pkg && alpm_depcmp(pkg, dep)) {
            found = 1;
        } else {
            /* not found, can we find anything that provides this in the local DB? */
            provides = alpm_db_whatprovides(alpm_option_get_localdb(),
                    alpm_dep_get_name(dep));
            for(j = provides; j; j = alpm_list_next(j)) {
                pmpkg_t *pkg;
                pkg = alpm_list_getdata(j);

                if(pkg && alpm_depcmp(pkg, dep)) {
                    found = 1;
                    break;
                }
            }
            alpm_list_free(provides);
        }

        if(!found) {
            printf("%s\n", target);
            retval = 127;
        }
        free(dep);
    }
    return(retval);
}

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