upgrade.c 2 KB
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/* upgrade.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 <errno.h>
#include <stdio.h>
#include <zlib.h>
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_state.h"
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#include "apk_print.h"
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static int upgrade_parse(void *ctx, struct apk_db_options *dbopts,
			 int optch, int optindex, const char *optarg)
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{
	switch (optch) {
	case 'a':
		apk_flags |= APK_PREFER_AVAILABLE;
		break;
	default:
		return -1;
	}
	return 0;
}

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static int upgrade_main(void *ctx, struct apk_database *db, int argc, char **argv)
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{
	struct apk_state *state = NULL;
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	int i, r = 0;
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	apk_flags |= APK_UPGRADE;

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	state = apk_state_new(db);
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	if (state == NULL)
		goto err;

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	for (i = 0; i < db->world->num; i++) {
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		struct apk_dependency *dep = &db->world->item[i];
		if (dep->version && (apk_flags & APK_PREFER_AVAILABLE)) {
			dep->result_mask = APK_VERSION_EQUAL | APK_VERSION_LESS | APK_VERSION_GREATER;
			dep->version = NULL;
		}
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		r |= apk_state_lock_dependency(state, dep);
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	}
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	if (r == 0)
		r = apk_state_commit(state, db);
	else
		apk_state_print_errors(state);
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err:
	if (state != NULL)
		apk_state_unref(state);
	return r;
}

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static struct apk_option upgrade_options[] = {
	{ 'a', "available",
	  "Re-install or downgrade if currently installed package is not "
	  "currently available from any repository" },
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};

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static struct apk_applet apk_upgrade = {
	.name = "upgrade",
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	.help = "Upgrade (or downgrade with -a) the currently installed "
		"packages to versions available in repositories.",
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	.open_flags = APK_OPENF_WRITE,
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	.num_options = ARRAY_SIZE(upgrade_options),
	.options = upgrade_options,
	.parse = upgrade_parse,
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	.main = upgrade_main,
};

APK_DEFINE_APPLET(apk_upgrade);