referenceFromRuntime.targets

<Project>

  <PropertyGroup Condition="$(TargetFramework.StartsWith('netcoreapp')) and '$(TargetFramework)' != '$(NetCoreAppCurrent)'">
    <PrepareProjectReferencesDependsOn>
      AddRuntimeProjectReference;
      $(PrepareProjectReferencesDependsOn);
    </PrepareProjectReferencesDependsOn>
    <ResolveReferencesDependsOn>
      AddRuntimeProjectReference;
      $(ResolveReferencesDependsOn);
    </ResolveReferencesDependsOn>
    <CleanDependsOn>
      AddRuntimeProjectReference;
      $(CleanDependsOn)
    </CleanDependsOn>
  </PropertyGroup>

  <Target Name="AddRuntimeProjectReference"
          Condition="'$(IsTestProject)'!='true' and '@(ReferenceFromRuntime)' != ''">
    <Error Condition="'$(IsReferenceAssembly)' == 'true' and '$(AllowReferenceFromRuntime)' != 'true'" Text="ReferenceFromRuntime may not be used from reference assemblies." />

    <PropertyGroup>
      <RuntimeProjectFile>$([MSBuild]::NormalizePath('$(LibrariesProjectRoot)', 'restore', 'runtime', 'runtime.depproj'))</RuntimeProjectFile>
    </PropertyGroup>

    <ItemGroup>
      <ProjectReference Include="$(RuntimeProjectFile)">
        <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
        <OutputItemType>_referencePathFromRestoredRuntime</OutputItemType>
      </ProjectReference>
    </ItemGroup>
  </Target>

  <Target Name="GetFilesFromCoreCLR" Returns="@(CoreCLRFiles)" DependsOnTargets="ResolveCoreCLRFilesFromLocalBuild" />

  <Target Name="FilterReferenceFromRuntime"
          AfterTargets="ResolveProjectReferences"
          Condition="'@(ReferenceFromRuntime)' != ''">

    <Error Condition="'$(IsReferenceAssembly)' == 'true' and '$(AllowReferenceFromRuntime)' != 'true'" Text="ReferenceFromRuntime may not be used from reference assemblies." />

    <MSBuild Projects="$(MSBuildProjectFile)" Targets="GetFilesFromCoreCLR" Condition="'$(TargetFramework)' == '$(NetCoreAppCurrent)'">
      <Output TaskParameter="TargetOutputs" ItemName="CoreCLRFiles" />
    </MSBuild>

    <ItemGroup>
      <_referencePathFromRuntime Include="@(CoreCLRFiles)" Private="false" />
      <_referencePathFromRuntime Include="@(_referencePathFromRestoredRuntime)" Private="false" />
      <!-- If this is a test project, also use the $(RuntimePath) to find a @(ReferenceFromRuntime) assembly. -->
      <_referencePathFromRuntime Include="@(ReferenceFromRuntime->'$(RuntimePath)%(Identity).dll')" Condition="'$(IsTestProject)' == 'true'" />
      <!-- transform to filename in order to intersect -->
      <_referencePathFromRuntimeByFileName Include="@(_referencePathFromRuntime->'%(FileName)')" Condition="'%(_referencePathFromRuntime.Extension)' == '.dll'" >
        <ReferencePath>%(Identity)</ReferencePath>
      </_referencePathFromRuntimeByFileName>
    </ItemGroup>

    <RemoveDuplicates Inputs="@(_referencePathFromRuntimeByFileName)">
      <Output TaskParameter="Filtered" ItemName="_referencePathFromRuntimeByFileNameFiltered" />
    </RemoveDuplicates>

    <ItemGroup>

      <!-- intersect with ReferenceFromRuntime -->
      <_filteredReferencePathFromRuntimeByFileName Include="@(_referencePathFromRuntimeByFileNameFiltered)"
          Condition="'@(_referencePathFromRuntimeByFileNameFiltered)' == '@(ReferenceFromRuntime)' and '%(Identity)' != ''">
        <Aliases>@(ReferenceFromRuntime->'%(Aliases)')</Aliases>
      </_filteredReferencePathFromRuntimeByFileName>

      <_remainingReferenceFromRuntime Include="@(ReferenceFromRuntime)" Exclude="@(_filteredReferencePathFromRuntimeByFileName)" />

      <!-- Fallback and check for native images for the references as well -->
      <_remainingReferenceFromRuntimeWithNI Include="@(_remainingReferenceFromRuntime->'%(Identity).ni')">
        <OriginalReferenceFromRuntime>%(Identity)</OriginalReferenceFromRuntime>
      </_remainingReferenceFromRuntimeWithNI>

      <_filteredReferencePathFromRuntimeByFileName Include="@(_referencePathFromRuntimeByFileNameFiltered)"
          Condition="'@(_referencePathFromRuntimeByFileNameFiltered)' == '@(_remainingReferenceFromRuntimeWithNI)' and '%(Identity)' != ''">
        <Aliases>@(_remainingReferenceFromRuntimeWithNI->'%(Aliases)')</Aliases>
      </_filteredReferencePathFromRuntimeByFileName>

      <_missingReferenceFromRuntime Include="@(_remainingReferenceFromRuntimeWithNI)" Exclude="@(_filteredReferencePathFromRuntimeByFileName)" />

      <!-- transform back to path -->
      <!-- We are adding two items(with and without aliases) for references having Aliases. The major reason behind this to not use the Aliases for all the types in that reference.  -->
      <!-- We can't use a Reference item for both since only the first one will be kept. Use ReferencePath for the second reference so it will still be passed to the compiler. -->
      <Reference Include="@(_filteredReferencePathFromRuntimeByFileName->'%(ReferencePath)')" />
      <ReferencePath Include="@(_filteredReferencePathFromRuntimeByFileName->'%(ReferencePath)')" Condition="'%(_filteredReferencePathFromRuntimeByFileName.Aliases)' != ''" Aliases="" />
    </ItemGroup>

    <Error Condition="'@(_missingReferenceFromRuntime)' != ''"
           Text="Could not resolve ReferenceFromRuntime item(s) '%(_missingReferenceFromRuntime.OriginalReferenceFromRuntime)' from '$(RuntimeProjectFile)'." />
  </Target>
</Project>