Work around dotnet/runtime#71027 by using manual runtimeconfig files.

The generated ones can result in the consuming application to not be able to load due to hostfxr reordering the frameworks in a way that will cause it to look for hostpolicy in the wrong framework.

Signed-off-by: AraHaan <[email protected]>

pkg/sfx/Directory.Build.props

@@ -17,6 +17,16 @@
     <OverridePackageId>$(SharedFrameworkName).Runtime.$(RuntimeIdentifier)</OverridePackageId>
     <PlatformPackageType>RuntimePack</PlatformPackageType>
     <ArchiveName>efcore-runtime</ArchiveName>
+    <!-- Work around https://github.com/dotnet/runtime/issues/71027 by adding NETCore.App last in the runtimeconfig file. -->
+    <!--
+        There is a problem with the automatically generated runtimeconfig.json
+        files where it is possible that it can cause the apphost to look for hostpolicy
+        in the wrong framework directory.
+
+        As such we must provide our own runtimeconfig file that gets copied to the
+        output directory that is manually maintained.
+    -->
+    <GenerateRuntimeConfigurationFiles>false</GenerateRuntimeConfigurationFiles>
   </PropertyGroup>
 
   <PropertyGroup Condition="$(MSBuildProjectName.Contains('.Ref'))">
@@ -26,4 +36,20 @@
     <ArchiveName>efcore-targeting-pack</ArchiveName>
   </PropertyGroup>
 
+  <!-- Caution: Dangerous Hack. -->
+  <Target
+    Name="CopyManualRuntimeConfigFile"
+    Condition="'$(GenerateRuntimeConfigurationFiles)' == 'false' AND !$(MSBuildProjectName.Contains('.Ref'))"
+    BeforeTargets="CopyFilesToOutputDirectory">
+    <Copy
+      SourceFiles="$(MSBuildThisFileDirectory)runtimeconfig.json"
+      SkipUnchangedFiles="true"
+      DestinationFiles="$(TargetDir)$(AssemblyName).runtimeconfig.json" />
+    <!--
+        For some reason copy creates 2 files instead of just the
+        copied file with the new name above.
+    -->
+    <Delete Files="$(TargetDir)runtimeconfig.json" />
+  </Target>
+
 </Project>

pkg/sfx/Directory.Packages.props

@@ -1,10 +1,9 @@
 <Project>
 
   <ItemGroup>
+    <FrameworkReference Include="Microsoft.NETCore.App" />
     <!-- Try to prevent assemblies that exist in the ASP.NET Core Framework from being included here. -->
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
-    <!-- Work arround https://github.com/dotnet/runtime/issues/71027 by adding NETCore.App last. -->
-    <FrameworkReference Include="Microsoft.NETCore.App" />
     <!-- The actual EntityFrameworkCore nuget packages. -->
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.6" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.6" />

pkg/sfx/runtimeconfig.json

@@ -0,0 +1,19 @@
+{
+  "runtimeOptions": {
+    "tfm": "net6.0",
+    "frameworks": [
+      {
+        "name": "Microsoft.AspNetCore.App",
+        "version": "6.0.0"
+      },
+      {
+        "name": "Microsoft.NETCore.App",
+        "version": "6.0.0"
+      }
+    ],
+    "configProperties": {
+      "System.Reflection.Metadata.MetadataUpdater.IsSupported": false,
+      "System.Reflection.NullabilityInfoContext.IsSupported": true
+    }
+  }
+}