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/* ver.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation. See http://www.gnu.org/ for details.
*/
#include <stdio.h>
#include "apk_defines.h"
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_version.h"
static int res2char(int res)
{
switch (res) {
case APK_VERSION_LESS:
return '<';
case APK_VERSION_GREATER:
return '>';
case APK_VERSION_EQUAL:
return '=';
default:
return '?';
}
}
static int ver_main(int argc, char **argv)
{
struct apk_database db;
struct apk_name *name;
struct apk_package *pkg, *upg, *tmp;
struct hlist_node *c;
int i, r;
if (argc == 2) {
r = apk_version_compare(APK_BLOB_STR(argv[0]),
APK_BLOB_STR(argv[1]));
printf("%c\n", res2char(r));
return 0;
}
if (apk_db_open(&db, apk_root) < 0)
return -1;
hlist_for_each_entry(pkg, c, &db.installed.packages, installed_pkgs_list) {
name = pkg->name;
upg = pkg;
for (i = 0; i < name->pkgs->num; i++) {
tmp = name->pkgs->item[i];
if (tmp->name != name)
continue;
r = apk_version_compare(APK_BLOB_STR(tmp->version),
APK_BLOB_STR(upg->version));
if (r == APK_VERSION_GREATER)
upg = tmp;
}
printf("%-40s%c\n", name->name, pkg != upg ? '<' : '=');
}
apk_db_close(&db);
return 0;
}
static struct apk_applet apk_ver = {
.name = "version",
.usage = "[version1 version2]",
.main = ver_main,
};
APK_DEFINE_APPLET(apk_ver);
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