thin-provisioning-tools/thin_restore.cc

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#include "emitter.h"
#include "human_readable_format.h"
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#include "metadata.h"
#include "restore_emitter.h"
#include "xml_format.h"
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#include <fstream>
#include <iostream>
#include <boost/program_options.hpp>
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using namespace persistent_data;
using namespace std;
using namespace thin_provisioning;
namespace po = boost::program_options;
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//----------------------------------------------------------------
namespace {
void restore(string const &backup_file, string const &dev) {
// FIXME: hard coded
block_address const NR_BLOCKS = 100000;
metadata::ptr md(new metadata(dev, metadata::CREATE, 128, NR_BLOCKS));
emitter::ptr restorer = create_restore_emitter(md);
ifstream in(backup_file.c_str(), ifstream::in);
// FIXME:
//try {
parse_xml(in, restorer);
#if 0
} catch (...) {
in.close();
throw;
}
#endif
}
void usage(po::options_description const &desc) {
cerr << "Usage: thin_restore [options]" << endl << endl;
cerr << desc;
}
}
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int main(int argc, char **argv)
{
po::options_description desc("Options");
desc.add_options()
("help", "Produce help message")
("input,i", po::value<string>(), "Input file")
("output,o", po::value<string>(), "Output file")
;
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).options(desc).run(), vm);
po::notify(vm);
if (vm.count("help")) {
usage(desc);
return 0;
}
if (vm.count("input") != 1) {
cerr << "No input file provided." << endl;
usage(desc);
return 1;
}
if (vm.count("output") != 1) {
cerr << "No output file provided." << endl;
usage(desc);
return 1;
}
restore(vm["input"].as<string>(),
vm["output"].as<string>());
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return 0;
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}
//----------------------------------------------------------------