Рфеакторинг метода расширения получения файла из сборки

AsbCloudInfrastructure/AssemblyExtensions.cs

@@ -1,9 +1,7 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Reflection;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -11,7 +9,29 @@ namespace AsbCloudInfrastructure
 {
 	public static class AssemblyExtensions
 	{
-        public static async Task<Stream> GetTemplateCopyStreamAsync(this Assembly assembly, string templateName, CancellationToken cancellationToken)
+		public static Stream GetTemplateCopyStream(this Assembly assembly, string templateName)
+		{
+			var resourceName = assembly
+				.GetManifestResourceNames()
+				.FirstOrDefault(n => n.EndsWith(templateName));
+
+			if (string.IsNullOrWhiteSpace(resourceName))
+				throw new ArgumentNullException(nameof(resourceName));
+
+			using var stream = Assembly.GetExecutingAssembly()
+				.GetManifestResourceStream(resourceName);
+
+			var memoryStream = new MemoryStream();
+			stream?.CopyTo(memoryStream);
+			memoryStream.Position = 0;
+
+			return memoryStream;
+		}
+
+		[Obsolete]
+		public static async Task<Stream> GetTemplateCopyStreamAsync(this Assembly assembly,
+			string templateName,
+			CancellationToken cancellationToken)
 		{
 			var resourceName = assembly
 				.GetManifestResourceNames()