ceph/src/rocksdb/tools/dump/rocksdb_dump.cc

   1 //  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5
   6 #if !(defined GFLAGS) || defined(ROCKSDB_LITE)
   7
   8 #include <cstdio>
   9 int main() {
  10 #ifndef GFLAGS
  11   fprintf(stderr, "Please install gflags to run rocksdb tools\n");
  12 #endif
  13 #ifdef ROCKSDB_LITE
  14   fprintf(stderr, "DbDumpTool is not supported in ROCKSDB_LITE\n");
  15 #endif
  16   return 1;
  17 }
  18
  19 #else
  20
  21 #include "rocksdb/convenience.h"
  22 #include "rocksdb/db_dump_tool.h"
  23 #include "util/gflags_compat.h"
  24
  25 DEFINE_string(db_path, "", "Path to the db that will be dumped");
  26 DEFINE_string(dump_location, "", "Path to where the dump file location");
  27 DEFINE_bool(anonymous, false,
  28             "Remove information like db path, creation time from dumped file");
  29 DEFINE_string(db_options, "",
  30               "Options string used to open the database that will be dumped");
  31
  32 int main(int argc, char** argv) {
  33   GFLAGS_NAMESPACE::ParseCommandLineFlags(&argc, &argv, true);
  34
  35   if (FLAGS_db_path == "" || FLAGS_dump_location == "") {
  36     fprintf(stderr, "Please set --db_path and --dump_location\n");
  37     return 1;
  38   }
  39
  40   rocksdb::DumpOptions dump_options;
  41   dump_options.db_path = FLAGS_db_path;
  42   dump_options.dump_location = FLAGS_dump_location;
  43   dump_options.anonymous = FLAGS_anonymous;
  44
  45   rocksdb::Options db_options;
  46   if (FLAGS_db_options != "") {
  47     rocksdb::Options parsed_options;
  48     rocksdb::Status s = rocksdb::GetOptionsFromString(
  49         db_options, FLAGS_db_options, &parsed_options);
  50     if (!s.ok()) {
  51       fprintf(stderr, "Cannot parse provided db_options\n");
  52       return 1;
  53     }
  54     db_options = parsed_options;
  55   }
  56
  57   rocksdb::DbDumpTool tool;
  58   if (!tool.Run(dump_options, db_options)) {
  59     return 1;
  60   }
  61   return 0;
  62 }
  63 #endif  // !(defined GFLAGS) || defined(ROCKSDB_LITE)