Switching to generations TFMs

Author: pranavkm

src/Microsoft.AspNet.StaticFiles/SendFileMiddleware.cs

@@ -92,13 +92,14 @@ public async Task SendFileAsync(string fileName, long offset, long? length, Canc
                     throw new ArgumentOutOfRangeException(nameof(length), length, string.Empty);
                 }
 
-#if DNX451
-                Stream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 1024 * 64,
-                    FileOptions.Asynchronous | FileOptions.SequentialScan);
-#else
-                // TODO: Bring back async when the contract gets it
-                Stream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 1024 * 64);
-#endif
+                var fileStream = new FileStream(
+                    fileName,
+                    FileMode.Open,
+                    FileAccess.Read,
+                    FileShare.ReadWrite,
+                    bufferSize: 1024 * 64,
+                    options: FileOptions.Asynchronous | FileOptions.SequentialScan);
+
                 try
                 {
                     fileStream.Seek(offset, SeekOrigin.Begin);

src/Microsoft.AspNet.StaticFiles/project.json

@@ -1,19 +1,19 @@
 {
-    "version": "1.0.0-*",
-    "description": "ASP.NET 5 static files middleware.",
-    "repository": {
-        "type": "git",
-        "url": "git://github.com/aspnet/staticfiles"
-    },
-    "dependencies": {
-        "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
-        "Microsoft.AspNet.FileProviders.Abstractions": "1.0.0-*",
-        "Microsoft.AspNet.Hosting.Abstractions": "1.0.0-*",
-        "Microsoft.Extensions.Logging.Abstractions": "1.0.0-*",
-        "Microsoft.Extensions.WebEncoders": "1.0.0-*"
-    },
-    "frameworks": {
-        "dnx451": { },
-        "dnxcore50": { }
-    }
-}
+  "version": "1.0.0-*",
+  "description": "ASP.NET 5 static files middleware.",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/aspnet/staticfiles"
+  },
+  "dependencies": {
+    "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
+    "Microsoft.AspNet.FileProviders.Abstractions": "1.0.0-*",
+    "Microsoft.AspNet.Hosting.Abstractions": "1.0.0-*",
+    "Microsoft.Extensions.Logging.Abstractions": "1.0.0-*",
+    "Microsoft.Extensions.WebEncoders": "1.0.0-*"
+  },
+  "frameworks": {
+    "net451": {},
+    "dotnet5.4": {}
+  }
+}