ceph/src/librados-config.cc
Yehuda Sadeh 2c88f85c6d config: alternative config options for global_init()
We want to be able to provide alternative default config values, than
the ones we set in common/config_opts.h. This can be useful when we
want different default for different modules (e.g., rgw, rgw-admin).
Just passing it on the command line won't do because then we'd override
any config set by the user, so we need to process that before the regular
parsing (but after initializing the config context).

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
2012-03-12 13:21:22 -07:00

79 lines
1.8 KiB
C++

// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
*
* This 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 file COPYING.
*
*/
#include "common/config.h"
#include "common/ceph_argparse.h"
#include "global/global_init.h"
#include "global/global_context.h"
#include "include/rados/librados.h"
void usage()
{
cout << "usage: librados-config [option]\n"
<< "where options are:\n"
<< " --version library version\n"
<< " --vernum library version code\n";
}
void usage_exit()
{
usage();
exit(1);
}
int main(int argc, const char **argv)
{
vector<const char*> args;
argv_to_vec(argc, argv, args);
env_to_vec(args);
bool opt_version = false;
bool opt_vernum = false;
global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY, 0);
common_init_finish(g_ceph_context);
for (std::vector<const char*>::iterator i = args.begin();
i != args.end(); ) {
if (strcmp(*i, "--") == 0) {
break;
}
else if (strcmp(*i, "--version") == 0) {
opt_version = true;
i = args.erase(i);
}
else if (strcmp(*i, "--vernum") == 0) {
opt_vernum = true;
i = args.erase(i);
}
else
++i;
}
if (!opt_version && !opt_vernum)
usage_exit();
if (opt_version) {
int maj, min, ext;
rados_version(&maj, &min, &ext);
cout << maj << "." << min << "." << ext << std::endl;
} else if (opt_vernum) {
cout << hex << LIBRADOS_VERSION_CODE << dec << std::endl;
}
return 0;
}