2011-02-04 17:38:48 -08:00
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2007 Andreas Obergrusberger <tradiaz@yahoo.de>
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* Copyright (C) 2008-2010 Valeriy Lyasotskiy <onestep@ukr.net>
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* Copyright (C) 2010-2011 Jonathan Conder <jonno.conder@gmail.com>
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*
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* Licensed under the GNU General Public License Version 2
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <alpm.h>
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#include <pk-backend.h>
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#include "pk-backend-alpm.h"
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#include "pk-backend-depends.h"
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#include "pk-backend-error.h"
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#include "pk-backend-packages.h"
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2011-10-28 06:21:41 -07:00
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static alpm_pkg_t *
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2011-02-04 17:38:48 -08:00
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alpm_list_find_pkg (const alpm_list_t *pkgs, const gchar *name)
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{
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g_return_val_if_fail (name != NULL, NULL);
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for (; pkgs != NULL; pkgs = pkgs->next) {
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if (g_strcmp0 (name, alpm_pkg_get_name (pkgs->data)) == 0) {
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return pkgs->data;
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}
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}
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return NULL;
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}
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static alpm_list_t *
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pk_backend_find_provider (PkBackend *self, alpm_list_t *pkgs,
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2011-03-31 15:21:05 -07:00
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const gchar *depend, GError **error)
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2011-02-04 17:38:48 -08:00
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{
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PkBitfield filters;
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gboolean recursive, skip_local, skip_remote;
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2011-10-28 06:21:41 -07:00
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alpm_pkg_t *provider;
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2011-03-31 15:21:05 -07:00
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alpm_list_t *pkgcache, *syncdbs;
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2011-02-04 17:38:48 -08:00
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g_return_val_if_fail (self != NULL, pkgs);
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g_return_val_if_fail (depend != NULL, pkgs);
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2011-10-26 03:20:16 -07:00
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g_return_val_if_fail (alpm != NULL, pkgs);
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2011-02-04 17:38:48 -08:00
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g_return_val_if_fail (localdb != NULL, pkgs);
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recursive = pk_backend_get_bool (self, "recursive");
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filters = pk_backend_get_uint (self, "filters");
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skip_local = pk_bitfield_contain (filters,
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PK_FILTER_ENUM_NOT_INSTALLED);
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skip_remote = pk_bitfield_contain (filters, PK_FILTER_ENUM_INSTALLED);
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2011-03-31 15:21:05 -07:00
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if (alpm_find_satisfier (pkgs, depend) != NULL) {
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2011-02-04 17:38:48 -08:00
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return pkgs;
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}
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/* look for local dependencies */
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pkgcache = alpm_db_get_pkgcache (localdb);
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2011-03-31 15:21:05 -07:00
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provider = alpm_find_satisfier (pkgcache, depend);
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2011-02-04 17:38:48 -08:00
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if (provider != NULL) {
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if (!skip_local) {
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pk_backend_pkg (self, provider, PK_INFO_ENUM_INSTALLED);
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/* assume later dependencies will also be local */
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if (recursive) {
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pkgs = alpm_list_add (pkgs, provider);
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}
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}
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return pkgs;
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}
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/* look for remote dependencies */
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2013-03-17 01:17:31 -07:00
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syncdbs = alpm_get_syncdbs (alpm);
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2011-10-26 03:20:16 -07:00
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provider = alpm_find_dbs_satisfier (alpm, syncdbs, depend);
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2011-02-04 17:38:48 -08:00
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if (provider != NULL) {
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if (!skip_remote) {
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pk_backend_pkg (self, provider, PK_INFO_ENUM_AVAILABLE);
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}
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/* keep looking for local dependencies */
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if (recursive) {
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pkgs = alpm_list_add (pkgs, provider);
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}
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} else {
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2011-10-26 02:44:37 -07:00
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int code = ALPM_ERR_UNSATISFIED_DEPS;
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2011-03-31 15:21:05 -07:00
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g_set_error (error, ALPM_ERROR, code, "%s: %s", depend,
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2011-02-04 17:38:48 -08:00
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alpm_strerror (code));
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}
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return pkgs;
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}
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static alpm_list_t *
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pk_backend_find_requirer (PkBackend *self, alpm_list_t *pkgs, const gchar *name,
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GError **error)
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{
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2011-10-28 06:21:41 -07:00
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alpm_pkg_t *requirer;
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2011-02-04 17:38:48 -08:00
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g_return_val_if_fail (self != NULL, pkgs);
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g_return_val_if_fail (name != NULL, pkgs);
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g_return_val_if_fail (localdb != NULL, pkgs);
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if (alpm_list_find_pkg (pkgs, name) != NULL) {
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return pkgs;
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}
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/* look for local requirers */
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requirer = alpm_db_get_pkg (localdb, name);
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if (requirer != NULL) {
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pk_backend_pkg (self, requirer, PK_INFO_ENUM_INSTALLED);
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if (pk_backend_get_bool (self, "recursive")) {
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pkgs = alpm_list_add (pkgs, requirer);
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}
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} else {
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2011-10-26 02:44:37 -07:00
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int code = ALPM_ERR_PKG_NOT_FOUND;
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2011-02-04 17:38:48 -08:00
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g_set_error (error, ALPM_ERROR, code, "%s: %s", name,
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alpm_strerror (code));
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}
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return pkgs;
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}
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static gboolean
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2013-12-20 09:15:10 -08:00
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pk_backend_depends_on_thread (PkBackend *self)
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2011-02-04 17:38:48 -08:00
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{
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gchar **packages;
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alpm_list_t *i, *pkgs = NULL;
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GError *error = NULL;
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g_return_val_if_fail (self != NULL, FALSE);
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packages = pk_backend_get_strv (self, "package_ids");
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g_return_val_if_fail (packages != NULL, FALSE);
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/* construct an initial package list */
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for (; *packages != NULL; ++packages) {
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2011-10-28 06:21:41 -07:00
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alpm_pkg_t *pkg;
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2011-02-04 17:38:48 -08:00
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if (pk_backend_cancelled (self)) {
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break;
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}
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pkg = pk_backend_find_pkg (self, *packages, &error);
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if (pkg == NULL) {
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break;
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}
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pkgs = alpm_list_add (pkgs, pkg);
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}
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/* package list might be modified along the way but that is ok */
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for (i = pkgs; i != NULL; i = i->next) {
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const alpm_list_t *depends;
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if (pk_backend_cancelled (self) || error != NULL) {
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break;
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}
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2013-12-20 09:15:10 -08:00
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depends = alpm_pkg_depends_on (i->data);
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2011-02-04 17:38:48 -08:00
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for (; depends != NULL; depends = depends->next) {
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2011-03-31 15:21:05 -07:00
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gchar *depend;
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2011-02-04 17:38:48 -08:00
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if (pk_backend_cancelled (self) || error != NULL) {
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break;
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}
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2011-03-31 15:21:05 -07:00
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depend = alpm_dep_compute_string (depends->data);
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pkgs = pk_backend_find_provider (self, pkgs, depend,
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&error);
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2013-03-17 03:45:38 -07:00
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free (depend);
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2011-02-04 17:38:48 -08:00
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}
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}
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alpm_list_free (pkgs);
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return pk_backend_finish (self, NULL);
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}
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static gboolean
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2013-12-20 09:15:10 -08:00
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pk_backend_required_by_thread (PkBackend *self)
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2011-02-04 17:38:48 -08:00
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{
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gchar **packages;
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alpm_list_t *i, *pkgs = NULL;
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GError *error = NULL;
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g_return_val_if_fail (self != NULL, FALSE);
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packages = pk_backend_get_strv (self, "package_ids");
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g_return_val_if_fail (packages != NULL, FALSE);
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/* construct an initial package list */
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for (; *packages != NULL; ++packages) {
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2011-10-28 06:21:41 -07:00
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alpm_pkg_t *pkg;
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2011-02-04 17:38:48 -08:00
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if (pk_backend_cancelled (self)) {
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break;
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}
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pkg = pk_backend_find_pkg (self, *packages, &error);
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if (pkg == NULL) {
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break;
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}
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pkgs = alpm_list_add (pkgs, pkg);
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}
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/* package list might be modified along the way but that is ok */
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for (i = pkgs; i != NULL; i = i->next) {
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alpm_list_t *requiredby;
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if (pk_backend_cancelled (self) || error != NULL) {
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break;
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}
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requiredby = alpm_pkg_compute_requiredby (i->data);
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for (; requiredby != NULL; requiredby = requiredby->next) {
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if (pk_backend_cancelled (self) || error != NULL) {
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break;
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}
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pkgs = pk_backend_find_requirer (self, pkgs,
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requiredby->data,
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&error);
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}
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FREELIST (requiredby);
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}
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alpm_list_free (pkgs);
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return pk_backend_finish (self, error);
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}
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void
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2013-12-20 09:15:10 -08:00
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pk_backend_depends_on (PkBackend *self, PkBitfield filters,
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2011-02-04 17:38:48 -08:00
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gchar **package_ids, gboolean recursive)
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{
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g_return_if_fail (self != NULL);
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g_return_if_fail (package_ids != NULL);
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pk_backend_run (self, PK_STATUS_ENUM_QUERY,
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2013-12-20 09:15:10 -08:00
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pk_backend_depends_on_thread);
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2011-02-04 17:38:48 -08:00
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}
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void
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2013-12-20 09:15:10 -08:00
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pk_backend_required_by (PkBackend *self, PkBitfield filters,
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2011-02-04 17:38:48 -08:00
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gchar **package_ids, gboolean recursive)
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{
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g_return_if_fail (self != NULL);
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g_return_if_fail (package_ids != NULL);
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pk_backend_run (self, PK_STATUS_ENUM_QUERY,
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2013-12-20 09:15:10 -08:00
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pk_backend_required_by_thread);
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2011-02-04 17:38:48 -08:00
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}
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