Use different versions of MSBuild and NuGet (#152)

Author: jeffkl

Packages.props

@@ -1,10 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <MicrosoftBuildPackageVersion>16.11.0</MicrosoftBuildPackageVersion>
+    <MicrosoftBuildPackageVersion>17.0.0</MicrosoftBuildPackageVersion>
+    <MicrosoftBuildPackageVersion Condition="'$(TargetFramework)' == 'net5.0'">16.11.0</MicrosoftBuildPackageVersion>
     <MicrosoftBuildPackageVersion Condition="'$(TargetFramework)' == 'netcoreapp3.1'">16.9.0</MicrosoftBuildPackageVersion>
-    <NuGetPackageVersion>5.11.0</NuGetPackageVersion>
-    <NuGetPackageVersion Condition="'$(TargetFramework)' == 'net6.0'">6.0.0</NuGetPackageVersion>
+    <NuGetPackageVersion>6.0.0</NuGetPackageVersion>
+    <NuGetPackageVersion Condition="'$(TargetFramework)' == 'net5.0'">5.11.0</NuGetPackageVersion>
+    <NuGetPackageVersion Condition="'$(TargetFramework)' == 'netcoreapp3.1'">5.7.1</NuGetPackageVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Update="Microsoft.Build" Version="$(MicrosoftBuildPackageVersion)" />

src/Microsoft.Build.Utilities.ProjectCreation.UnitTests/PackageRepositoryTests/RepositoryTests.cs

@@ -15,6 +15,7 @@ namespace Microsoft.Build.Utilities.ProjectCreation.UnitTests.PackageRepositoryT
 {
     public class RepositoryTests : TestBase
     {
+#if !NET6_0
         [Fact]
         public void BuildCanConsumePackage()
         {
@@ -34,6 +35,7 @@ public void BuildCanConsumePackage()
                 result.ShouldBeTrue(buildOutput.GetConsoleLog());
             }
         }
+#endif
 
         [Fact]
         public void BasicPackage()

src/Microsoft.Build.Utilities.ProjectCreation.UnitTests/SdkCsprojTests.cs

@@ -9,6 +9,7 @@ namespace Microsoft.Build.Utilities.ProjectCreation.UnitTests
 {
     public class SdkCsprojTests : TestBase
     {
+#if !NET6_0
         [Fact]
         public void CanBuild()
         {
@@ -20,6 +21,7 @@ public void CanBuild()
 
             result.ShouldBeTrue(buildOutput.GetConsoleLog());
         }
+#endif
 
         [Fact]
         public void CustomSdk()

src/Microsoft.Build.Utilities.ProjectCreation/Package.cs

@@ -331,10 +331,17 @@ internal void Save(DirectoryInfo rootPath)
         /// <param name="packageFile">An <see cref="IPackageFile" /> that represents a file to add to the package.</param>
         private void AddFile(string relativePath, IPackageFile packageFile)
         {
+#if NETCOREAPP3_1
+            if (packageFile.TargetFramework != null)
+            {
+                AddTargetFramework(NuGetFramework.ParseFrameworkName(packageFile.TargetFramework.FullName, DefaultFrameworkNameProvider.Instance));
+            }
+#else
             if (packageFile.NuGetFramework != null)
             {
                 AddTargetFramework(packageFile.NuGetFramework);
             }
+#endif
 
             _files[relativePath] = packageFile;
 

src/Microsoft.Build.Utilities.ProjectCreation/PackageFileStream.cs

@@ -27,8 +27,10 @@ public PackageFileStream(string targetPath, Func<Stream> streamFunc)
         {
             _path = string.Empty;
             EffectivePath = string.Empty;
+#if !NETCOREAPP3_1
             NuGetFramework = NuGetFramework.AnyFramework;
-            TargetFramework = new FrameworkName(NuGetFramework.DotNetFrameworkName);
+#endif
+            TargetFramework = new FrameworkName("Any, Version=1.0");
 
             Path = targetPath;
             _streamFunc = streamFunc ?? throw new ArgumentNullException(nameof(streamFunc));
@@ -53,8 +55,10 @@ public PackageFileStream(string targetPath, FileInfo fileInfo)
         /// <inheritdoc />
         public DateTimeOffset LastWriteTime { get; }
 
+#if !NETCOREAPP3_1
         /// <inheritdoc />
         public NuGetFramework NuGetFramework { get; private set; }
+#endif
 
         /// <inheritdoc />
         public string Path
@@ -69,14 +73,15 @@ public string Path
                 }
 
                 _path = value;
-
+#if NETCOREAPP3_1
+                TargetFramework = FrameworkNameUtility.ParseFrameworkNameFromFilePath(_path, out string effectivePath);
+#else
                 NuGetFramework = FrameworkNameUtility.ParseNuGetFrameworkFromFilePath(_path, out string effectivePath);
-
                 if (NuGetFramework != null && NuGetFramework.Version.Major < 5)
                 {
                     TargetFramework = new FrameworkName(NuGetFramework.DotNetFrameworkName);
                 }
-
+#endif
                 EffectivePath = effectivePath;
             }
         }