do_copy.c

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/*!
   \file lib/manage/do_copy.c
 
   \brief Manage Library - Copy element
 
   (C) 2001-2011 by the GRASS Development Team
 
   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.
 
   \author Original author CERL
 */
 
#include <stdio.h>
#include <string.h>
#include <unistd.h>
 
#include <grass/gis.h>
#include <grass/glocale.h>
#include <grass/vector.h>
 
#include "manage_local_proto.h"
 
/*!
   \brief Copy element
 
   \param n   element id
   \param old source name
   \param mapset name of source mapset
   \param new destination name
 
   \return 0 on success
   \return 1 on error
 */
int M_do_copy(int n, const char *old, const char *mapset, const char *new)
{
    int i, ret;
    char path[GPATH_MAX], path2[GPATH_MAX];
    int result = 0;
 
    G_debug(3, "Copy %s", list[n].alias);
 
    G_message(_("Copying %s <%s> to current mapset as <%s>"), list[n].maindesc,
              G_fully_qualified_name(old, mapset), new);
 
    M__hold_signals(1);
    if (G_strcasecmp(list[n].alias, "vector") == 0) {
        ret = Vect_copy(old, mapset, new);
        if (ret == -1) {
            G_warning(_("Unable to copy <%s> to current mapset as <%s>"),
                      G_fully_qualified_name(old, mapset), new);
            result = 1;
        }
    }
    else {
        for (i = 0; i < list[n].nelem; i++) {
            G_make_mapset_object_group(list[n].element[i]);
            G_file_name(path, list[n].element[i], old, mapset);
            if (access(path, 0) != 0) {
                G_remove(list[n].element[i], new);
                G_verbose_message(_("%s is missing"), list[n].desc[i]);
 
                continue;
            }
            G_file_name(path2, list[n].element[i], new, G_mapset());
            if (G_recursive_copy(path, path2) == 1) {
                G_warning(_("Unable to copy <%s> to current mapset as <%s>"),
                          G_fully_qualified_name(old, mapset), new);
                result = 1;
            }
            else {
                G_verbose_message(_("%s copied"), list[n].desc[i]);
            }
        }
    }
 
    /* special case: remove (yes, remove) the secondary color table, if it
     * exists */
    if (G_strcasecmp(list[n].element[0], "cell") == 0) {
        char colr2[6 + GMAPSET_MAX];
 
        if (snprintf(colr2, 6 + GMAPSET_MAX, "colr2/%s", G_mapset()) >=
            6 + GMAPSET_MAX)
            G_warning(_("String for secondary color table has been truncated"));
        G_remove(colr2, new);
    }
    M__hold_signals(0);
 
    return result;
}