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/* opkg_upgrade.c - the opkg package management system
Carl D. Worth
Copyright (C) 2001 University of Southern California
Copyright (C) 2003 Daniele Nicolodi <daniele@grinta.net>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
*/
#include <stdio.h>
#include <stdlib.h>
#include "opkg_install.h"
#include "opkg_upgrade.h"
#include "opkg_message.h"
int
opkg_upgrade_pkg(pkg_t *old)
{
pkg_t *new;
int cmp;
char *old_version, *new_version;
if (old->state_flag & SF_HOLD) {
opkg_msg(NOTICE, "Not upgrading package %s which is marked "
"hold (flags=%#x).\n", old->name, old->state_flag);
return 0;
}
new = pkg_hash_fetch_best_installation_candidate_by_name(old->name);
if (new == NULL) {
old_version = pkg_version_str_alloc(old);
opkg_msg(NOTICE, "Assuming locally installed package %s (%s) "
"is up to date.\n", old->name, old_version);
free(old_version);
return 0;
}
old_version = pkg_version_str_alloc(old);
new_version = pkg_version_str_alloc(new);
cmp = pkg_compare_versions(old, new);
opkg_msg(DEBUG, "Comparing visible versions of pkg %s:"
"\n\t%s is installed "
"\n\t%s is available "
"\n\t%d was comparison result\n",
old->name, old_version, new_version, cmp);
if (cmp == 0) {
opkg_msg(INFO, "Package %s (%s) installed in %s is up to date.\n",
old->name, old_version, old->dest->name);
free(old_version);
free(new_version);
return 0;
} else if (cmp > 0) {
opkg_msg(NOTICE, "Not downgrading package %s on %s from %s to %s.\n",
old->name, old->dest->name, old_version, new_version);
free(old_version);
free(new_version);
return 0;
} else if (cmp < 0) {
new->dest = old->dest;
old->state_want = SW_DEINSTALL;
}
free(old_version);
free(new_version);
new->state_flag |= SF_USER;
return opkg_install_pkg(new,1);
}
static void
pkg_hash_check_installed_pkg_helper(const char *pkg_name, void *entry,
void *data)
{
struct active_list *head = (struct active_list *) data;
abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
pkg_vec_t *pkg_vec = ab_pkg->pkgs;
int j;
if (!pkg_vec)
return;
for (j = 0; j < pkg_vec->len; j++) {
pkg_t *pkg = pkg_vec->pkgs[j];
if (pkg->state_status == SS_INSTALLED
|| pkg->state_status == SS_UNPACKED)
active_list_add(head, &pkg->list);
}
}
struct active_list *
prepare_upgrade_list(void)
{
struct active_list *head = active_list_head_new();
struct active_list *all = active_list_head_new();
struct active_list *node=NULL;
/* ensure all data is valid */
pkg_info_preinstall_check();
hash_table_foreach(&conf->pkg_hash, pkg_hash_check_installed_pkg_helper, all);
for (node=active_list_next(all,all); node; node = active_list_next(all, node)) {
pkg_t *old, *new;
int cmp;
old = list_entry(node, pkg_t, list);
new = pkg_hash_fetch_best_installation_candidate_by_name(old->name);
if (new == NULL)
continue;
cmp = pkg_compare_versions(old, new);
if ( cmp < 0 ) {
node = active_list_move_node(all, head, &old->list);
}
}
active_list_head_delete(all);
return head;
}
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