static Proto.FileInfo CreateProtoFile(DevDescriptor devDescriptor)
        {
            var protoFile = new Proto.FileInfo(devDescriptor.fileDescriptor);

            // Always add scene and loading state enum.
            protoFile.AddEnum(EnumInfoHelper.GetSceneEnum(EditorBuildSettings.scenes));
            protoFile.AddEnum(DefaultMessages.loadingStateEnum);

            protoFile.onUpdate += () =>
            {
                Action onFail = null;
                if (File.Exists(Paths.devProtoPath))
                {
                    var previousText = File.ReadAllText(Paths.devProtoPath);
                    onFail = () => { File.WriteAllText(Paths.devProtoPath, previousText); };
                }

                Directory.CreateDirectory(Path.GetDirectoryName(Paths.devProtoPath));
                File.WriteAllText(Paths.devProtoPath, protoFile.ToProtoString());
                if (!ProtocCompiler.GenerateProtoAndDesc() && onFail != null)
                {
                    onFail();
                }
                else
                {
                    AssetDatabase.Refresh();
                    areFidelityMessagesDirty = true;
                }
            };

            // If files do not exist yet, call OnUpdate to generate them (.proto, .descriptor and .cs).
            if (!File.Exists(Paths.devProtoPath) ||
                !File.Exists(Paths.devDescriptorPath) ||
                !FidelityBuilder.builder.valid)
            {
                protoFile.onUpdate();
            }

            return(protoFile);
        }