Add Microsoft.NET.Build.Extensions files to package for VS insertion

build_projects/dotnet-cli-build/GenerateMSBuildExtensionsSWR.cs

@@ -0,0 +1,81 @@
+using Microsoft.Build.Framework;
+using Microsoft.Build.Utilities;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace Microsoft.DotNet.Cli.Build
+{
+    public class GenerateMSBuildExtensionsSWR : Task
+    {
+        [Required]
+        public string MSBuildExtensionsLayoutDirectory { get; set; }
+
+        [Required]
+        public string OutputFile { get; set; }
+
+        public override bool Execute()
+        {
+            StringBuilder sb = new StringBuilder(SWR_HEADER);
+
+            AddFolder(sb,
+                      @"MSBuildSdkResolver",
+                      @"MSBuild\15.0\Bin\SdkResolvers\Microsoft.DotNet.MSBuildSdkResolver");
+
+            AddFolder(sb,
+                      @"msbuildExtensions",
+                      @"MSBuild");
+
+            AddFolder(sb,
+                      @"msbuildExtensions-ver",
+                      @"MSBuild\15.0");
+
+            File.WriteAllText(OutputFile, sb.ToString());
+
+            return true;
+        }
+
+        private void AddFolder(StringBuilder sb, string relativeSourcePath, string swrInstallDir)
+        {
+            string sourceFolder = Path.Combine(MSBuildExtensionsLayoutDirectory, relativeSourcePath);
+            var files = Directory.GetFiles(sourceFolder)
+                            .Where(f => !Path.GetExtension(f).Equals(".pdb", StringComparison.OrdinalIgnoreCase))
+                            .ToList();
+            if (files.Any())
+            {
+                sb.Append(@"folder ""InstallDir:\");
+                sb.Append(swrInstallDir);
+                sb.AppendLine(@"\""");
+
+                foreach (var file in files)
+                {
+                    sb.Append(@"  file source=""!(bindpath.sources)\Redist\Common\NetCoreSDK\MSBuildExtensions\");
+                    sb.Append(Path.Combine(relativeSourcePath, Path.GetFileName(file)));
+                    sb.AppendLine("\"");
+                }
+
+                sb.AppendLine();
+            }
+
+            foreach (var subfolder in Directory.GetDirectories(sourceFolder))
+            {
+                string subfolderName = Path.GetFileName(subfolder);
+                string newRelativeSourcePath = Path.Combine(relativeSourcePath, subfolderName);
+                string newSwrInstallDir = Path.Combine(swrInstallDir, subfolderName);
+
+                AddFolder(sb, newRelativeSourcePath, newSwrInstallDir);
+            }
+        }
+
+        readonly string SWR_HEADER = @"use vs
+
+package name=Microsoft.Net.Core.SDK.MSBuildExtensions
+        version=$(Version)
+        vs.package.branch=$(VsSingletonPackageBranch)
+        vs.package.internalRevision=$(PackageInternalRevision)
+
+";
+    }
+}