unique_ptr BuildLocalReplicaMode()

in src/kudu/tools/tool_action_local_replica.cc [744:837]
86 lines of code
1 McCabe index (conditional complexity)

unique_ptr<Mode> BuildLocalReplicaMode() {
  unique_ptr<Action> print_replica_uuids =
      ActionBuilder("print_replica_uuids", &PrintReplicaUuids)
      .Description("Print all tablet replica peer UUIDs found in a "
        "tablet's Raft configuration")
      .AddRequiredParameter({ kTabletIdArg, kTabletIdArgDesc })
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .Build();

  unique_ptr<Action> rewrite_raft_config =
      ActionBuilder("rewrite_raft_config", &RewriteRaftConfig)
      .Description("Rewrite a tablet replica's Raft configuration")
      .AddRequiredParameter({ kTabletIdArg, kTabletIdArgDesc })
      .AddRequiredVariadicParameter({
        "peers", "List of peers where each peer is of "
        "form 'uuid:hostname:port'" })
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .Build();

  unique_ptr<Action> set_term =
      ActionBuilder("set_term", &SetRaftTerm)
      .Description("Bump the current term stored in consensus metadata")
      .AddRequiredParameter({ kTabletIdArg, kTabletIdArgDesc })
      .AddRequiredParameter({ kTermArg, "the new raft term (must be greater "
        "than the current term)" })
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .Build();

  unique_ptr<Mode> cmeta =
      ModeBuilder("cmeta")
      .Description("Operate on a local tablet replica's consensus "
        "metadata file")
      .AddAction(std::move(print_replica_uuids))
      .AddAction(std::move(rewrite_raft_config))
      .AddAction(std::move(set_term))
      .Build();

  unique_ptr<Action> copy_from_remote =
      ActionBuilder("copy_from_remote", &CopyFromRemote)
      .Description("Copy a tablet replica from a remote server")
      .AddRequiredParameter({ kTabletIdArg, kTabletIdArgDesc })
      .AddRequiredParameter({ "source", "Source RPC address of "
        "form hostname:port" })
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .Build();

  unique_ptr<Action> list =
      ActionBuilder("list", &ListLocalReplicas)
      .Description("Show list of tablet replicas in the local filesystem")
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .AddOptionalParameter("list_detail")
      .Build();

  unique_ptr<Action> delete_local_replica =
      ActionBuilder("delete", &DeleteLocalReplica)
      .Description("Delete a tablet replica from the local filesystem. "
          "By default, leaves a tombstone record.")
      .AddRequiredParameter({ kTabletIdArg, kTabletIdArgDesc })
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .AddOptionalParameter("clean_unsafe")
      .Build();

  unique_ptr<Action> data_size =
      ActionBuilder("data_size", &SummarizeDataSize)
      .Description("Summarize the data size/space usage of the given local replica(s).")
      .AddRequiredParameter({ kTabletIdGlobArg, kTabletIdGlobArgDesc })
      .AddOptionalParameter("fs_data_dirs")
      .AddOptionalParameter("fs_metadata_dir")
      .AddOptionalParameter("fs_wal_dir")
      .AddOptionalParameter("format")
      .Build();

  return ModeBuilder("local_replica")
      .Description("Operate on local tablet replicas via the local filesystem")
      .AddMode(std::move(cmeta))
      .AddAction(std::move(copy_from_remote))
      .AddAction(std::move(data_size))
      .AddAction(std::move(delete_local_replica))
      .AddAction(std::move(list))
      .AddMode(BuildDumpMode())
      .Build();
}