1 /* opkg_upgrade.c - the opkg package management system 2 3 Carl D. Worth 4 Copyright (C) 2001 University of Southern California 5 6 Copyright (C) 2003 Daniele Nicolodi <daniele@grinta.net> 7 8 This program is free software; you can redistribute it and/or 9 modify it under the terms of the GNU General Public License as 10 published by the Free Software Foundation; either version 2, or (at 11 your option) any later version. 12 13 This program is distributed in the hope that it will be useful, but 14 WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 General Public License for more details. 17 */ 18 19 #include <stdio.h> 20 #include <stdlib.h> 21 22 #include "opkg_install.h" 23 #include "opkg_upgrade.h" 24 #include "opkg_message.h" 25 26 int opkg_upgrade_pkg(pkg_t * old) 27 { 28 pkg_t *new; 29 int cmp; 30 char *old_version, *new_version; 31 32 if (old->state_flag & SF_HOLD) { 33 opkg_msg(NOTICE, "Not upgrading package %s which is marked " 34 "hold (flags=%#x).\n", old->name, old->state_flag); 35 return 0; 36 } 37 38 new = pkg_hash_fetch_best_installation_candidate_by_name(old->name); 39 if (new == NULL) { 40 old_version = pkg_version_str_alloc(old); 41 opkg_msg(NOTICE, "Assuming locally installed package %s (%s) " 42 "is up to date.\n", old->name, old_version); 43 free(old_version); 44 return 0; 45 } 46 47 old_version = pkg_version_str_alloc(old); 48 new_version = pkg_version_str_alloc(new); 49 50 cmp = pkg_compare_versions(old, new); 51 opkg_msg(DEBUG, "Comparing visible versions of pkg %s:" 52 "\n\t%s is installed " 53 "\n\t%s is available " 54 "\n\t%d was comparison result\n", 55 old->name, old_version, new_version, cmp); 56 if (cmp == 0) { 57 opkg_msg(INFO, 58 "Package %s (%s) installed in %s is up to date.\n", 59 old->name, old_version, old->dest->name); 60 free(old_version); 61 free(new_version); 62 return 0; 63 } else if (cmp > 0) { 64 opkg_msg(NOTICE, 65 "Not downgrading package %s on %s from %s to %s.\n", 66 old->name, old->dest->name, old_version, new_version); 67 free(old_version); 68 free(new_version); 69 return 0; 70 } else if (cmp < 0) { 71 new->dest = old->dest; 72 old->state_want = SW_DEINSTALL; 73 } 74 75 free(old_version); 76 free(new_version); 77 new->state_flag |= SF_USER; 78 return opkg_install_pkg(new, 1); 79 } 80 81 static void 82 pkg_hash_check_installed_pkg_helper(const char *pkg_name, void *entry, 83 void *data) 84 { 85 struct active_list *item, *head = (struct active_list *)data; 86 abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry; 87 pkg_vec_t *pkg_vec = ab_pkg->pkgs; 88 int j; 89 90 if (!pkg_vec) 91 return; 92 93 for (j = 0; j < pkg_vec->len; j++) { 94 pkg_t *pkg = pkg_vec->pkgs[j]; 95 if (pkg->state_status == SS_INSTALLED 96 || pkg->state_status == SS_UNPACKED) { 97 item = active_list_head_new(); 98 item->pkg = pkg; 99 active_list_add(head, item); 100 } 101 } 102 } 103 104 struct active_list *prepare_upgrade_list(void) 105 { 106 struct active_list *head = active_list_head_new(); 107 struct active_list *all = active_list_head_new(); 108 struct active_list *node = NULL; 109 110 /* ensure all data is valid */ 111 pkg_info_preinstall_check(); 112 113 hash_table_foreach(&conf->pkg_hash, pkg_hash_check_installed_pkg_helper, 114 all); 115 for (node = active_list_next(all, all); node; 116 node = active_list_next(all, node)) { 117 pkg_t *old, *new; 118 int cmp; 119 120 old = node->pkg; 121 new = 122 pkg_hash_fetch_best_installation_candidate_by_name(old-> 123 name); 124 125 if (new == NULL) 126 continue; 127 128 cmp = pkg_compare_versions(old, new); 129 130 if (cmp < 0) { 131 node = active_list_move_node(all, head, node); 132 } 133 } 134 active_list_head_delete(all); 135 return head; 136 } 137
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