plist_remove.c

/*-
 * Copyright (c) 2008-2012 Juan Romero Pardines.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

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

#include "xbps_api_impl.h"

static bool
remove_obj_from_array(prop_array_t array, const char *str, int mode)
{
        prop_object_iterator_t iter;
        prop_object_t obj;
        const char *curname, *pkgdep;
        char *curpkgname;
        size_t idx = 0;
        bool found = false;

        assert(prop_object_type(array) == PROP_TYPE_ARRAY);

        iter = prop_array_iterator(array);
        if (iter == NULL)
                return false;

        while ((obj = prop_object_iterator_next(iter))) {
                if (mode == 0) {
                        /* exact match, obj is a string */
                        if (prop_string_equals_cstring(obj, str)) {
                                found = true;
                                break;
                        }
                } else if (mode == 1) {
                        /* match by pkgname, obj is a string */
                        pkgdep = prop_string_cstring_nocopy(obj);
                        curpkgname = xbps_pkg_name(pkgdep);
                        if (curpkgname == NULL)
                                break;
                        if (strcmp(curpkgname, str) == 0) {
                                free(curpkgname);
                                found = true;
                                break;
                        }
                        free(curpkgname);
                } else if (mode == 2) {
                        /* match by pkgname, obj is a dictionary  */
                        prop_dictionary_get_cstring_nocopy(obj,
                            "pkgname", &curname);
                        if (strcmp(curname, str) == 0) {
                                found = true;
                                break;
                        }
                } else if (mode == 3) {
                        /* match by pkgver, obj is a dictionary */
                        prop_dictionary_get_cstring_nocopy(obj,
                            "pkgver", &curname);
                        if (strcmp(curname, str) == 0) {
                                found = true;
                                break;
                        }
                } else if (mode == 4) {
                        /* match by pattern, obj is a dictionary */
                        prop_dictionary_get_cstring_nocopy(obj,
                            "pkgver", &curname);
                        if (xbps_pkgpattern_match(curname, str)) {
                                found = true;
                                break;
                        }
                }
                idx++;
        }
        prop_object_iterator_release(iter);

        if (!found) {
                errno = ENOENT;
                return false;
        }

        prop_array_remove(array, idx);
        return true;
}

bool HIDDEN
xbps_remove_string_from_array(prop_array_t array, const char *str)
{
        return remove_obj_from_array(array, str, 0);
}

bool HIDDEN
xbps_remove_pkgname_from_array(prop_array_t array, const char *str)
{
        return remove_obj_from_array(array, str, 1);
}

bool HIDDEN
xbps_remove_pkg_from_array_by_name(prop_array_t array, const char *str)
{
        return remove_obj_from_array(array, str, 2);
}

bool HIDDEN
xbps_remove_pkg_from_array_by_pkgver(prop_array_t array, const char *str)
{
        return remove_obj_from_array(array, str, 3);
}

bool HIDDEN
xbps_remove_pkg_from_array_by_pattern(prop_array_t array, const char *str)
{
        return remove_obj_from_array(array, str, 4);
}