Rename some files in the library to better describe what they do.
--HG-- rename : lib/config_files.c => lib/package_config_files.c rename : lib/configure.c => lib/package_configure.c rename : lib/orphans.c => lib/package_orphans.c rename : lib/purge.c => lib/package_purge.c rename : lib/register.c => lib/package_register.c rename : lib/remove.c => lib/package_remove.c rename : lib/remove_obsoletes.c => lib/package_remove_obsoletes.c rename : lib/requiredby.c => lib/package_requiredby.c rename : lib/state.c => lib/package_state.c rename : lib/unpack.c => lib/package_unpack.c
This commit is contained in:
Juan RP
201
lib/package_orphans.c
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201
lib/package_orphans.c
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/*-
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* Copyright (c) 2009 Juan Romero Pardines.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <xbps_api.h>
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/**
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* @file lib/orphans.c
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* @brief Package orphans handling routines
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* @defgroup pkg_orphans Package orphans handling functions
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*
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* Functions to find installed package orphans.
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*
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* Package orphans were installed automatically by another package,
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* but currently no other packages are depending on.
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*
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* The following image shown below shows the registered packages database
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* dictionary (the array returned by xbps_find_orphan_packages() will
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* contain a package dictionary per orphan found):
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*
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* @image html images/xbps_regpkgdb_dictionary.png
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*
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* Legend:
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* - <b>Salmon filled box</b>: \a XBPS_REGPKGDB_PLIST file internalized.
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* - <b>White filled box</b>: mandatory objects.
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* - <b>Grey filled box</b>: optional objects.
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* - <b>Green filled box</b>: possible value set in the object, only one
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* of them is set.
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*
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* Text inside of white boxes are the key associated with the object, its
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* data type is specified on its edge, i.e array, bool, integer, string,
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* dictionary.
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*/
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struct orphan_pkg {
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SIMPLEQ_ENTRY(orphan_pkg) chain;
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prop_dictionary_t dict;
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const char *pkgname;
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};
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static SIMPLEQ_HEAD(orphan_head, orphan_pkg) orphan_list =
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SIMPLEQ_HEAD_INITIALIZER(orphan_list);
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static int
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find_orphan_pkg(prop_object_t obj, void *arg, bool *loop_done)
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{
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prop_array_t reqby;
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prop_object_t obj2;
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prop_object_iterator_t iter;
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struct orphan_pkg *orphan;
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char *pkgname;
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unsigned int ndep = 0, cnt = 0;
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bool automatic = false;
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pkg_state_t state = 0;
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int rv = 0;
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(void)arg;
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(void)loop_done;
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if (!prop_dictionary_get_bool(obj, "automatic-install", &automatic))
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return EINVAL;
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if (!automatic)
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return 0;
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if ((rv = xbps_get_pkg_state_dictionary(obj, &state)) != 0)
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return rv;
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if (state != XBPS_PKG_STATE_INSTALLED)
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return 0;
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reqby = prop_dictionary_get(obj, "requiredby");
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if (reqby == NULL)
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return 0;
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else if (prop_object_type(reqby) != PROP_TYPE_ARRAY)
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return EINVAL;
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if ((cnt = prop_array_count(reqby)) == 0)
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goto add_orphan;
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iter = prop_array_iterator(reqby);
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if (iter == NULL)
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return errno;
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while ((obj2 = prop_object_iterator_next(iter)) != NULL) {
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pkgname = xbps_get_pkg_name(prop_string_cstring_nocopy(obj2));
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if (pkgname == NULL)
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return EINVAL;
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SIMPLEQ_FOREACH(orphan, &orphan_list, chain) {
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if (strcmp(orphan->pkgname, pkgname) == 0) {
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ndep++;
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break;
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}
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}
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free(pkgname);
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}
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prop_object_iterator_release(iter);
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if (ndep != cnt)
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return 0;
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add_orphan:
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orphan = NULL;
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orphan = malloc(sizeof(struct orphan_pkg));
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if (orphan == NULL)
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return errno;
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if (!prop_dictionary_get_cstring_nocopy(obj, "pkgname",
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&orphan->pkgname)) {
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free(orphan);
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return errno;
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}
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orphan->dict = prop_dictionary_copy(obj);
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SIMPLEQ_INSERT_TAIL(&orphan_list, orphan, chain);
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return 0;
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}
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static void
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cleanup(void)
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{
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struct orphan_pkg *orphan;
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while ((orphan = SIMPLEQ_FIRST(&orphan_list)) != NULL) {
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SIMPLEQ_REMOVE(&orphan_list, orphan, orphan_pkg, chain);
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prop_object_release(orphan->dict);
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free(orphan);
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}
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xbps_regpkgs_dictionary_release();
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}
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prop_array_t
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xbps_find_orphan_packages(void)
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{
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prop_array_t array;
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prop_dictionary_t dict;
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struct orphan_pkg *orphan;
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int rv = 0;
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if ((dict = xbps_regpkgs_dictionary_init()) == NULL)
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return NULL;
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/*
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* Find out all orphans by looking at the
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* regpkgdb dictionary and iterate in reverse order
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* in which packages were installed.
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*/
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rv = xbps_callback_array_iter_reverse_in_dict(dict, "packages",
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find_orphan_pkg, NULL);
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if (rv != 0) {
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errno = rv;
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cleanup();
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return NULL;
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}
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/*
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* Prepare an array with all packages previously found.
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*/
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array = prop_array_create();
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if (array == NULL) {
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cleanup();
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return NULL;
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}
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while ((orphan = SIMPLEQ_FIRST(&orphan_list)) != NULL) {
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if (!prop_array_add(array, orphan->dict)) {
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cleanup();
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return NULL;
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}
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SIMPLEQ_REMOVE(&orphan_list, orphan, orphan_pkg, chain);
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prop_object_release(orphan->dict);
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free(orphan);
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}
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xbps_regpkgs_dictionary_release();
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return array;
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}
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