src/pacman/add.c


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/*
 *  add.c
 * 
 *  Copyright (c) 2002-2005 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <alpm.h>
/* pacman */
#include "log.h"
#include "list.h"
#include "download.h"
#include "trans.h"

extern unsigned char pmo_upgrade;
extern unsigned char pmo_flags;

int pacman_add(list_t *targets)
{
  PM_LIST *data;
  list_t *i;

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

  /* Check for URL targets and process them
   */
  for(i = targets; i; i = i->next) {
    if(strstr(i->data, "://")) {
      char *str = fetch_pkgurl(i->data);
      if(str == NULL) {
        return(1);
      } else {
        free(i->data);
        i->data = str;
      }
    }
  }

  /* Step 1: create a new transaction
   */
  if(alpm_trans_init((pmo_upgrade == 0) ? PM_TRANS_TYPE_ADD : PM_TRANS_TYPE_UPGRADE,
                     pmo_flags, cb_trans) == -1) {
    ERR(NL, "%s\n", alpm_strerror(pm_errno));
    return(1);
  }

  /* and add targets to it */
  MSG(NL, "loading package data... ");
  for(i = targets; i; i = i->next) {
    if(alpm_trans_addtarget(i->data) == -1) {
      ERR(NL, "failed to add target '%s' (%s)\n", (char *)i->data, alpm_strerror(pm_errno));
      return(1);
    }
  }
  MSG(CL, "done");

  /* Step 2: "compute" the transaction based on targets and flags
   */
  if(alpm_trans_prepare(&data) == -1) {
    PM_LIST *i;

    ERR(NL, "failed to prepare transaction (%s)\n", alpm_strerror(pm_errno));
    switch(pm_errno) {
      case PM_ERR_UNSATISFIED_DEPS:
        for(i = alpm_list_first(data); i; i = alpm_list_next(i)) {
          pmdepmissing_t *miss = alpm_list_getdata(i);

          MSG(NL, ":: %s: requires %s", miss->target, miss->depend.name);
          switch(miss->depend.mod) {
            case PM_DEP_EQ: MSG(CL, "=%s", miss->depend.version);  break;
            case PM_DEP_GE: MSG(CL, ">=%s", miss->depend.version); break;
            case PM_DEP_LE: MSG(CL, "<=%s", miss->depend.version); break;
          }
          MSG(CL, "\n");
        }
        alpm_list_free(data);
      break;
      case PM_ERR_CONFLICTING_DEPS:
        for(i = alpm_list_first(data); i; i = alpm_list_next(i)) {
          pmdepmissing_t *miss = alpm_list_getdata(i);

          MSG(NL, ":: %s: conflicts with %s",
            miss->target, miss->depend.name, miss->depend.name);
        }
        alpm_list_free(data);
      break;
      case PM_ERR_FILE_CONFLICTS:
        for(i = alpm_list_first(data); i; i = alpm_list_next(i)) {
          MSG(NL, ":: %s\n", (char *)alpm_list_getdata(i));
        }
        alpm_list_free(data);
        MSG(NL, "\nerrors occurred, no packages were upgraded.\n\n");
      break;
      default:
      break;
    }
    alpm_trans_release();
    return(1);
  }

  /* Step 3: actually perform the installation
   */
  if(alpm_trans_commit() == -1) {
    ERR(NL, "failed to commit transaction (%s)\n", alpm_strerror(pm_errno));
    return(1);
  }

  return(0);
}

/* vim: set ts=2 sw=2 noet: */