rocksdb/tools/blob_dump.cc

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
// This source code is also licensed under the GPLv2 license found in the
// COPYING file in the root directory of this source tree.
#ifndef ROCKSDB_LITE
#include <getopt.h>
#include <cstdio>
#include <string>
#include <unordered_map>
#include "utilities/blob_db/blob_dump_tool.h"
using namespace rocksdb;
using namespace rocksdb::blob_db;
int main(int argc, char** argv) {
using DisplayType = BlobDumpTool::DisplayType;
const std::unordered_map<std::string, DisplayType> display_types = {
{"none", DisplayType::kNone},
{"raw", DisplayType::kRaw},
{"hex", DisplayType::kHex},
{"detail", DisplayType::kDetail},
};
const struct option options[] = {
{"help", no_argument, nullptr, 'h'},
{"file", required_argument, nullptr, 'f'},
{"show_key", optional_argument, nullptr, 'k'},
{"show_blob", optional_argument, nullptr, 'b'},
};
DisplayType show_key = DisplayType::kRaw;
DisplayType show_blob = DisplayType::kNone;
std::string file;
while (true) {
int c = getopt_long(argc, argv, "hk::b::f:", options, nullptr);
if (c < 0) {
break;
}
std::string arg_str(optarg ? optarg : "");
switch (c) {
case 'h':
fprintf(stdout,
"Usage: blob_dump --file=filename "
"[--show_key[=none|raw|hex|detail]] "
"[--show_blob[=none|raw|hex|detail]]\n");
return 0;
case 'f':
file = optarg;
break;
case 'k':
if (optarg) {
if (display_types.count(arg_str) == 0) {
fprintf(stderr, "Unrecognized key display type.\n");
return -1;
}
show_key = display_types.at(arg_str);
}
break;
case 'b':
if (optarg) {
if (display_types.count(arg_str) == 0) {
fprintf(stderr, "Unrecognized blob display type.\n");
return -1;
}
show_blob = display_types.at(arg_str);
} else {
show_blob = DisplayType::kDetail;
}
break;
default:
fprintf(stderr, "Unrecognized option.\n");
return -1;
}
}
BlobDumpTool tool;
Status s = tool.Run(file, show_key, show_blob);
if (!s.ok()) {
fprintf(stderr, "Failed: %s\n", s.ToString().c_str());
return -1;
}
return 0;
}
#else
#include <stdio.h>
int main(int argc, char** argv) {
fprintf(stderr, "Not supported in lite mode.\n");
return -1;
}
#endif // ROCKSDB_LITE