schema.proto

message Release {
  required string version = 1;
  optional string description = 2;
  optional uint64 diffLength = 3;
  optional uint64 byteLength = 4;
  repeated uint64 chunks = 5 [packed=true];
}

message Header {
  required string protocol = 1;
  required bytes chunkFeed = 2;
}

message StatusResponse {
  required string version = 1;
  required Release latestRelease = 2;
  required bool updateAvailable = 3;
  required bool updateDownloading = 4;
  required bool updateDownloaded = 5;
}

service Updater {
  option (hrpc.service) = 1;

  rpc Status (hrpc.Void) returns (StatusResponse) { option (hrpc.method) = 1; }
  rpc OnUpdateStatus (StatusResponse) returns (hrpc.Void) { option (hrpc.method) = 2; }
  rpc UpdateAndRelaunch (hrpc.Void) returns (hrpc.Void) { option (hrpc.method) = 3; }
  rpc DownloadUpdate (hrpc.Void) returns (hrpc.Void) { option (hrpc.method) = 4; }
  rpc NextUpdate (hrpc.Void) returns (Release) { option (hrpc.method) = 5; }
}