Create a nuget package for RuntimeConfigParser (#51240)

Fixes #51236

Directory.Build.props

@@ -71,7 +71,7 @@
     <WasmAppBuilderDir>$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'WasmAppBuilder', 'Debug', '$(NetCoreAppToolCurrent)', 'publish'))</WasmAppBuilderDir>
     <WasmBuildTasksDir>$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'WasmBuildTasks', 'Debug', '$(NetCoreAppToolCurrent)', 'publish'))</WasmBuildTasksDir>
     <MonoAOTCompilerDir>$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'MonoAOTCompiler', 'Debug', '$(NetCoreAppToolCurrent)'))</MonoAOTCompilerDir>
-    <RuntimeConfigParserDir>$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'RuntimeConfigParser', 'Debug', '$(NetCoreAppToolCurrent)', 'publish'))</RuntimeConfigParserDir>
+    <RuntimeConfigParserDir>$([MSBuild]::NormalizeDirectory('$(ArtifactsBinDir)', 'RuntimeConfigParser', 'Debug', '$(NetCoreAppToolCurrent)'))</RuntimeConfigParserDir>
 
     <InstallerTasksAssemblyPath Condition="'$(MSBuildRuntimeType)' == 'Core'">$([MSBuild]::NormalizePath('$(ArtifactsBinDir)', 'installer.tasks', 'Debug', '$(NetCoreAppToolCurrent)', 'installer.tasks.dll'))</InstallerTasksAssemblyPath>
     <InstallerTasksAssemblyPath Condition="'$(MSBuildRuntimeType)' != 'Core'">$([MSBuild]::NormalizePath('$(ArtifactsBinDir)', 'installer.tasks', 'Debug', 'net461', 'installer.tasks.dll'))</InstallerTasksAssemblyPath>

src/mono/nuget/Microsoft.NET.Runtime.RuntimeConfigParser.Task/Microsoft.NET.Runtime.RuntimeConfigParser.Task.pkgproj

+<Project DefaultTargets="Build">
+  <Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
+
+  <PropertyGroup>
+    <PackageDescription>Provides the RuntimeConfigParser task</PackageDescription>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="$(RepoTasksDir)RuntimeConfigParser\RuntimeConfigParser.csproj" />
+
+    <PackageFile Include="Sdk\Sdk.props" TargetPath="Sdk" />
+    <PackageFile Include="build\$(MSBuildProjectName).props" TargetPath="build" />
+  </ItemGroup>
+
+  <Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.targets))" />
+</Project>

src/mono/nuget/Microsoft.NET.Runtime.RuntimeConfigParser.Task/README.md

+# RuntimeConfigParser MSBuild Task NuPkg
+The `RuntimeConfigParser` MSBuild task is also useful outside the context of `dotnet/runtime`. The task is made available through a NuGet Package containing the `RuntimeConfigParser.dll` assembly produced from building `RuntimeConfigParser.csproj`. To use the task in a project, reference the NuGet package, with the appropriate nuget source.
+
+## NuGet.config
+```
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="dotnet6" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json" />
+  </packageSources>
+</configuration>
+```
+
+## In the project file
+```
+<!-- Import the NuGet package into the project -->
+<ItemGroup>
+    <PackageReference Include="Microsoft.NET.Runtime.RuntimeConfigParser.Task" Version="<desired-dotnet-6-sdk-version>" />
+</ItemGroup>
+
+<!-- Use the RuntimeConfigParser task in a target -->
+<Target>
+    <RuntimeConfigParserTask
+        RuntimeConfigFile="$(Path_to_runtimeconfig.json_file)"
+        OutputFile="$(Path_to_generated_binary_file)"
+        RuntimeConfigReservedProperties="@(runtime_properties_reserved_by_host)">
+    </RuntimeConfigParserTask>
+</Target>
+```

src/mono/nuget/Microsoft.NET.Runtime.RuntimeConfigParser.Task/Sdk/Sdk.props

+<Project>
+  <PropertyGroup>
+    <RuntimeConfigParserTasksAssemblyPath>$(MSBuildThisFileDirectory)..\tasks\RuntimeConfigParser.dll</RuntimeConfigParserTasksAssemblyPath>
+  </PropertyGroup>
+  <UsingTask TaskName="RuntimeConfigParserTask" AssemblyFile="$(RuntimeConfigParserTasksAssemblyPath)" />
+</Project>

src/mono/nuget/Microsoft.NET.Runtime.RuntimeConfigParser.Task/build/Microsoft.NET.Runtime.RuntimeConfigParser.Task.props

+<Project>
+  <Import Project="$(MSBuildThisFileDirectory)..\Sdk\Sdk.props" />
+</Project>

src/mono/nuget/mono-packages.proj

@@ -19,5 +19,6 @@
 
   <ItemGroup Condition="'$(TargetsMobile)' == 'true'">
     <ProjectReference Include="Microsoft.NET.Runtime.MonoAOTCompiler.Task\Microsoft.NET.Runtime.MonoAOTCompiler.Task.pkgproj" />
+    <ProjectReference Include="Microsoft.NET.Runtime.RuntimeConfigParser.Task\Microsoft.NET.Runtime.RuntimeConfigParser.Task.pkgproj" />
   </ItemGroup>
 </Project>

src/tasks/AotCompilerTask/MonoAOTCompiler.csproj

 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>$(NetCoreAppToolCurrent)</TargetFrameworks>
+    <TargetFramework>$(NetCoreAppToolCurrent)</TargetFramework>
     <OutputType>Library</OutputType>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
@@ -26,7 +26,7 @@
   <!-- GetFilesToPackage assists to place `MonoAOTCompiler.dll` in a NuGet package in Microsoft.NET.Runtime.MonoAOTCompiler.Task.pkgproj for external use -->
   <Target Name="GetFilesToPackage" Returns="@(FilesToPackage)">
     <ItemGroup>
-      <FilesToPackage Include="$(OutputPath)$(NetCoreAppToolCurrent)\$(AssemblyName).dll" TargetPath="tasks" />
+      <FilesToPackage Include="$(OutputPath)$(AssemblyName).dll" TargetPath="tasks" />
     </ItemGroup>
   </Target>
 </Project>

src/tasks/RuntimeConfigParser/RuntimeConfigParser.csproj

@@ -18,10 +18,11 @@
     <Compile Include="RuntimeConfigParser.cs" />
   </ItemGroup>
 
-  <Target Name="PublishBuilder"
-          AfterTargets="Build"
-          DependsOnTargets="Publish" />
-
-  <Target Name="GetFilesToPackage" />
+  <!-- GetFilesToPackage assists to place `RuntimeConfigParser.dll` in a NuGet package in Microsoft.NET.Runtime.RuntimeConfigParser.Task.pkgproj for external use -->
+  <Target Name="GetFilesToPackage" Returns="@(FilesToPackage)">
+    <ItemGroup>
+      <FilesToPackage Include="$(OutputPath)$(AssemblyName).dll" TargetPath="tasks" />
+    </ItemGroup>
+  </Target>
 
 </Project>

src/tasks/tasks.proj

@@ -11,6 +11,8 @@
                       Condition="'$(TargetOS)' != 'Browser'" />
     <ProjectReference Remove="$(MSBuildThisFileDirectory)AotCompilerTask\MonoAOTCompiler.csproj"
                       Condition="'$(TargetsMobile)' != 'true'" />
+    <ProjectReference Remove="$(MSBuildThisFileDirectory)RuntimeConfigParser\RuntimeConfigParser.csproj"
+                      Condition="'$(TargetsMobile)' != 'true'" />
   </ItemGroup>
 
   <!--