src/pacman/add.c


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/*
 *  add.c
 * 
 *  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, 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"
#include "add.h"
#include "conf.h"

extern config_t *config;

int pacman_add(list_t *targets)
{
  PM_LIST *data;
  list_t *i;
  int retval = 0;

  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((config->upgrade == 0) ? PM_TRANS_TYPE_ADD : PM_TRANS_TYPE_UPGRADE,
                     config->flags, cb_trans_evt, cb_trans_conv) == -1) {
    ERR(NL, "%s\n", alpm_strerror(pm_errno));
    if(pm_errno == PM_ERR_HANDLE_LOCK) {
      MSG(NL, "       if you're sure a package manager is not already running,\n"
              "       you can remove %s\n", PM_LOCK);
    }
    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));
      retval = 1;
      goto cleanup;
    }
  }
  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)) {
          PM_DEPMISS *miss = alpm_list_getdata(i);

          MSG(NL, ":: %s: requires %s", alpm_dep_getinfo(miss, PM_DEP_TARGET),
                                        alpm_dep_getinfo(miss, PM_DEP_NAME));
          switch((int)alpm_dep_getinfo(miss, PM_DEP_MOD)) {
            case PM_DEP_MOD_EQ: MSG(CL, "=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION));  break;
            case PM_DEP_MOD_GE: MSG(CL, ">=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION)); break;
            case PM_DEP_MOD_LE: MSG(CL, "<=%s", alpm_dep_getinfo(miss, PM_DEP_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)) {
          PM_DEPMISS *miss = alpm_list_getdata(i);

          MSG(NL, ":: %s: conflicts with %s",
            alpm_dep_getinfo(miss, PM_DEP_TARGET), alpm_dep_getinfo(miss, PM_DEP_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", (char *)alpm_list_getdata(i));
        }
        alpm_list_free(data);
        MSG(NL, "\nerrors occurred, no packages were upgraded.\n");
      break;
      default:
      break;
    }
    retval = 1;
    goto cleanup;
  }

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

  /* Step 4: release transaction resources
   */
cleanup:
  if(alpm_trans_release() == -1) {
    ERR(NL, "failed to release transaction (%s)\n", alpm_strerror(pm_errno));
  }

  return(retval);
}

/* vim: set ts=2 sw=2 noet: */