130 lines
2.7 KiB
C++
130 lines
2.7 KiB
C++
#include <fstream>
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#include <getopt.h>
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#include <libgen.h>
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#include <iostream>
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#include "version.h"
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#include "era/commands.h"
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#include "era/era_array.h"
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#include "era/writeset_tree.h"
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#include "era/metadata.h"
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#include "era/metadata_dump.h"
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#include "era/xml_format.h"
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#include "persistent-data/file_utils.h"
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using namespace era;
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using namespace std;
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//----------------------------------------------------------------
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namespace {
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struct flags {
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flags()
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: repair_(false),
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logical_(false) {
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}
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bool repair_;
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bool logical_;
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};
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//--------------------------------
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string const STDOUT_PATH("-");
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bool want_stdout(string const &output) {
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return output == STDOUT_PATH;
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}
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int dump(string const &dev, string const &output, flags const &fs) {
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try {
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block_manager<>::ptr bm = open_bm(dev, block_manager<>::READ_ONLY);
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metadata::ptr md(new metadata(bm, metadata::OPEN));
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if (want_stdout(output)) {
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emitter::ptr e = create_xml_emitter(cout);
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metadata_dump(md, e, fs.repair_, fs.logical_);
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} else {
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ofstream out(output.c_str());
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emitter::ptr e = create_xml_emitter(out);
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metadata_dump(md, e, fs.repair_, fs.logical_);
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}
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} catch (std::exception &e) {
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cerr << e.what() << endl;
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return 1;
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}
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return 0;
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}
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void usage(ostream &out, string const &cmd) {
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out << "Usage: " << cmd << " [options] {device|file}" << endl
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<< "Options:" << endl
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<< " {-h|--help}" << endl
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<< " {-o <xml file>}" << endl
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<< " {-V|--version}" << endl
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<< " {--repair}" << endl
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<< " {--logical}" << endl;
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}
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}
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//----------------------------------------------------------------
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int era_dump_main(int argc, char **argv)
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{
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int c;
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flags fs;
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string output("-");
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char const shortopts[] = "ho:V";
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option const longopts[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "output", required_argument, NULL, 'o' },
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{ "version", no_argument, NULL, 'V' },
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{ "repair", no_argument, NULL, 1 },
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{ "logical", no_argument, NULL, 2 },
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{ NULL, no_argument, NULL, 0 }
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};
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while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
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switch(c) {
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case 1:
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fs.repair_ = true;
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break;
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case 2:
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fs.logical_ = true;
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break;
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case 'h':
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usage(cout, basename(argv[0]));
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return 0;
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case 'o':
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output = optarg;
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break;
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case 'V':
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cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
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return 0;
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default:
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usage(cerr, basename(argv[0]));
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return 1;
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}
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}
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if (argc == optind) {
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cerr << "No input file provided." << endl;
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usage(cerr, basename(argv[0]));
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return 1;
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}
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return dump(argv[optind], output, fs);
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}
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base::command era::era_dump_cmd("era_dump", era_dump_main);
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//----------------------------------------------------------------
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