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/*-
* Copyright (c) 2014-present MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "util.h"
/*
* usage --
* Display a usage message for the downgrade command.
*/
static int
usage(void)
{
static const char *options[] = {"-V",
"a required option, the version to which the database is downgraded", "-?",
"show this message", NULL, NULL};
util_usage("downgrade -V release", "options:", options);
return (1);
}
/*
* util_downgrade --
* The downgrade command.
*/
int
util_downgrade(WT_SESSION *session, int argc, char *argv[])
{
WT_CONNECTION *conn;
WT_DECL_RET;
int ch;
char config_str[128], *release;
release = NULL;
while ((ch = __wt_getopt(progname, argc, argv, "V:?")) != EOF)
switch (ch) {
case 'V':
release = __wt_optarg;
break;
case '?':
usage();
return (0);
default:
return (usage());
}
argc -= __wt_optind;
/*
* The release argument is required. There should not be any more arguments.
*/
if (argc != 0 || release == NULL)
return (usage());
if ((ret = __wt_snprintf(
config_str, sizeof(config_str), "compatibility=(release=%s)", release)) != 0)
return (util_err(session, ret, NULL));
conn = session->connection;
if ((ret = conn->reconfigure(conn, config_str)) != 0)
return (util_err(session, ret, "WT_CONNECTION.downgrade"));
return (0);
}
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