xbps/lib/package_requiredby.c
2012-01-04 17:56:52 +01:00

158 lines
4.1 KiB
C

/*-
* Copyright (c) 2009-2012 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 int
add_pkg_into_reqby(prop_dictionary_t pkgd, const char *pkgver)
{
prop_array_t reqby;
prop_string_t reqstr;
bool alloc = false;
assert(prop_object_type(pkgd) == PROP_TYPE_DICTIONARY);
if ((reqby = prop_dictionary_get(pkgd, "requiredby")) == NULL) {
alloc = true;
if ((reqby = prop_array_create()) == NULL)
return ENOMEM;
}
/* the entry already exists, do nothing */
if (xbps_match_string_in_array(reqby, pkgver))
return 0;
reqstr = prop_string_create_cstring(pkgver);
if (reqstr == NULL) {
if (alloc)
prop_object_release(reqby);
return ENOMEM;
}
if (!xbps_add_obj_to_array(reqby, reqstr)) {
if (alloc)
prop_object_release(reqby);
prop_object_release(reqstr);
return EINVAL;
}
if (!alloc)
return 0;
if (!xbps_add_obj_to_dict(pkgd, reqby, "requiredby")) {
if (alloc)
prop_object_release(reqby);
return EINVAL;
}
return 0;
}
static int
remove_pkg_from_reqby(prop_object_t obj, void *arg, bool *loop_done)
{
prop_array_t reqby;
const char *pkgname = arg;
(void)loop_done;
reqby = prop_dictionary_get(obj, "requiredby");
if (reqby == NULL || prop_array_count(reqby) == 0)
return 0;
if (xbps_match_pkgname_in_array(reqby, pkgname)) {
if (!xbps_remove_pkgname_from_array(reqby, pkgname))
return EINVAL;
}
return 0;
}
int HIDDEN
xbps_requiredby_pkg_remove(const char *pkgname)
{
assert(pkgname != NULL);
return xbps_regpkgdb_foreach_pkg_cb(remove_pkg_from_reqby, __UNCONST(pkgname));
}
int HIDDEN
xbps_requiredby_pkg_add(struct xbps_handle *xhp, prop_dictionary_t pkgd)
{
prop_array_t pkg_rdeps;
prop_object_t obj, pkgd_regpkgdb;
prop_object_iterator_t iter;
const char *pkgver, *str;
int rv = 0;
assert(prop_object_type(pkgd) == PROP_TYPE_DICTIONARY);
prop_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver);
pkg_rdeps = prop_dictionary_get(pkgd, "run_depends");
if (pkg_rdeps == NULL || prop_array_count(pkg_rdeps) == 0)
return EINVAL;
iter = prop_array_iterator(pkg_rdeps);
if (iter == NULL)
return ENOMEM;
while ((obj = prop_object_iterator_next(iter)) != NULL) {
str = prop_string_cstring_nocopy(obj);
if (str == NULL) {
rv = EINVAL;
break;
}
xbps_dbg_printf("%s: adding reqby entry for %s\n", __func__, str);
pkgd_regpkgdb = xbps_find_virtualpkg_conf_in_dict_by_pattern(
xhp->regpkgdb, "packages", str);
if (pkgd_regpkgdb == NULL) {
pkgd_regpkgdb =
xbps_find_virtualpkg_in_dict_by_pattern(
xhp->regpkgdb, "packages", str);
if (pkgd_regpkgdb == NULL) {
rv = ENOENT;
xbps_dbg_printf("%s: couldnt find `%s' "
"entry in regpkgdb\n", __func__, str);
break;
}
}
rv = add_pkg_into_reqby(pkgd_regpkgdb, pkgver);
if (rv != 0)
break;
}
prop_object_iterator_release(iter);
return rv;
}