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-rw-r--r--ipkg_upgrade.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/ipkg_upgrade.c b/ipkg_upgrade.c
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+/* ipkg_upgrade.c - the itsy 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 "ipkg.h"
+#include "ipkg_install.h"
+#include "ipkg_message.h"
+
+int ipkg_upgrade_pkg(ipkg_conf_t *conf, pkg_t *old)
+{
+ pkg_t *new;
+ int cmp;
+ char *old_version, *new_version;
+
+ if (old->state_flag & SF_HOLD) {
+ ipkg_message(conf, IPKG_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(conf, old->name);
+ if (new == NULL) {
+ old_version = pkg_version_str_alloc(old);
+ ipkg_message(conf, IPKG_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);
+ ipkg_message(conf, IPKG_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) {
+ ipkg_message(conf, IPKG_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) {
+ ipkg_message(conf, IPKG_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;
+ }
+
+ new->state_flag |= SF_USER;
+ return ipkg_install_pkg(conf, new,1);
+}