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/* upgrade.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008-2011 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 <errno.h>
#include <stdio.h>
#include <zlib.h>
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_print.h"
#include "apk_solver.h"
struct upgrade_ctx {
unsigned short solver_flags;
};
static int upgrade_parse(void *ctx, struct apk_db_options *dbopts,
int optch, int optindex, const char *optarg)
{
struct upgrade_ctx *uctx = (struct upgrade_ctx *) ctx;
switch (optch) {
case 'a':
uctx->solver_flags |= APK_SOLVERF_AVAILABLE;
break;
default:
return -1;
}
return 0;
}
int apk_do_self_upgrade(struct apk_database *db, unsigned short solver_flags)
{
struct apk_name *name;
struct apk_changeset changeset = {};
struct apk_package_array *solution = NULL;
int r;
name = apk_db_get_name(db, APK_BLOB_STR("apk-tools"));
apk_solver_set_name_flags(name, solver_flags);
db->performing_self_update = 1;
r = apk_solver_solve(db, 0, db->world, &solution, &changeset);
if (r != 0) {
if (apk_flags & APK_FORCE)
r = 0;
else
apk_solver_print_errors(db, solution, db->world, r);
goto ret;
}
if (changeset.changes->num == 0)
goto ret;
if (apk_flags & APK_SIMULATE) {
apk_warning("This simulation is not reliable as apk-tools upgrade is available.");
goto ret;
}
apk_message("Upgrading critical system libraries and apk-tools:");
apk_solver_commit_changeset(db, &changeset, db->world);
apk_db_close(db);
apk_message("Continuing the upgrade transaction with new apk-tools:");
execvp(apk_argv[0], apk_argv);
apk_error("PANIC! Failed to re-execute new apk-tools!");
exit(1);
ret:
apk_package_array_free(&solution);
apk_change_array_free(&changeset.changes);
db->performing_self_update = 0;
return r;
}
static int upgrade_main(void *ctx, struct apk_database *db, int argc, char **argv)
{
struct upgrade_ctx *uctx = (struct upgrade_ctx *) ctx;
unsigned short solver_flags;
int r;
solver_flags = APK_SOLVERF_UPGRADE | uctx->solver_flags;
r = apk_do_self_upgrade(db, solver_flags);
if (r != 0)
return r;
return apk_solver_commit(db, solver_flags, db->world);
}
static struct apk_option upgrade_options[] = {
{ 'a', "available",
"Re-install or downgrade if currently installed package is not "
"currently available from any repository" },
};
static struct apk_applet apk_upgrade = {
.name = "upgrade",
.help = "Upgrade (or downgrade with -a) the currently installed "
"packages to versions available in repositories.",
.open_flags = APK_OPENF_WRITE,
.context_size = sizeof(struct upgrade_ctx),
.num_options = ARRAY_SIZE(upgrade_options),
.options = upgrade_options,
.parse = upgrade_parse,
.main = upgrade_main,
};
APK_DEFINE_APPLET(apk_upgrade);
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