/*      $NetBSD: vgextend.c,v 1.1.1.2 2009/12/02 00:25:57 haad Exp $    */

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser 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 "tools.h"

int vgextend(struct cmd_context *cmd, int argc, char **argv)
{
       char *vg_name;
       struct volume_group *vg = NULL;
       int r = ECMD_FAILED;
       struct pvcreate_params pp;

       if (!argc) {
               log_error("Please enter volume group name and "
                         "physical volume(s)");
               return EINVALID_CMD_LINE;
       }

       vg_name = skip_dev_dir(cmd, argv[0], NULL);
       argc--;
       argv++;

       if (arg_count(cmd, metadatacopies_ARG)) {
               log_error("Invalid option --metadatacopies, "
                         "use --pvmetadatacopies instead.");
               return EINVALID_CMD_LINE;
       }
       pvcreate_params_set_defaults(&pp);
       if (!pvcreate_params_validate(cmd, argc, argv, &pp)) {
               return EINVALID_CMD_LINE;
       }

       log_verbose("Checking for volume group \"%s\"", vg_name);
       vg = vg_read_for_update(cmd, vg_name, NULL, 0);
       if (vg_read_error(vg)) {
               vg_release(vg);
               stack;
               return ECMD_FAILED;
       }

       if (!lock_vol(cmd, VG_ORPHANS, LCK_VG_WRITE)) {
               log_error("Can't get lock for orphan PVs");
               unlock_and_release_vg(cmd, vg, vg_name);
               return ECMD_FAILED;
       }

       if (!archive(vg))
               goto_bad;

       /* extend vg */
       if (!vg_extend(vg, argc, argv, &pp))
               goto_bad;

       /* ret > 0 */
       log_verbose("Volume group \"%s\" will be extended by %d new "
                   "physical volumes", vg_name, argc);

       /* store vg on disk(s) */
       if (!vg_write(vg) || !vg_commit(vg))
               goto_bad;

       backup(vg);
       log_print("Volume group \"%s\" successfully extended", vg_name);
       r = ECMD_PROCESSED;

bad:
       unlock_vg(cmd, VG_ORPHANS);
       unlock_and_release_vg(cmd, vg, vg_name);
       return r;
}