Merge pull request #836 from natidea/useRidLess

Use RID less targets to obtain compile assets

Author: natidea

src/Tasks/Microsoft.NET.Build.Tasks/build/Microsoft.PackageDependencyResolution.targets

@@ -304,6 +304,14 @@ Copyright (c) .NET Foundation. All rights reserved.
     </ItemGroup>
   </Target>
 
+  <Target Name="_ComputeTFMOnlyFileDependencies"
+          DependsOnTargets="RunResolvePackageDependencies"
+          Returns="_TFMOnlyFileDependencies">
+    <ItemGroup>
+      <_TFMOnlyFileDependencies Include="@(FileDependencies->WithMetadataValue('ParentTarget', '$(NuGetTargetMoniker)'))" />
+    </ItemGroup>
+  </Target>
+
   <!--
     ============================================================
     Reference Targets: For populating References based on lock file
@@ -314,10 +322,10 @@ Copyright (c) .NET Foundation. All rights reserved.
     -->
 
   <Target Name="_ComputeLockFileReferences"
-          DependsOnTargets="_ComputeActiveTFMFileDependencies"
+          DependsOnTargets="_ComputeTFMOnlyFileDependencies"
           Returns="ResolvedCompileFileDefinitions">
     <ItemGroup>
-      <_CompileFileItems Include="@(_ActiveTFMFileDependencies->WithMetadataValue('FileGroup', 'CompileTimeAssembly'))" />
+      <_CompileFileItems Include="@(_TFMOnlyFileDependencies->WithMetadataValue('FileGroup', 'CompileTimeAssembly'))" />
 
       <!-- Get corresponding file definitions -->
       <__CompileFileDefinitions Include="@(FileDefinitions)" Exclude="@(_CompileFileItems)" />
@@ -334,10 +342,10 @@ Copyright (c) .NET Foundation. All rights reserved.
 
   <Target Name="_ComputeLockFileFrameworks"
           Condition="'$(DisableLockFileFrameworks)' != 'true'"
-          DependsOnTargets="_ComputeActiveTFMFileDependencies"
+          DependsOnTargets="_ComputeTFMOnlyFileDependencies"
           Returns="ResolvedFrameworkAssemblies">
     <ItemGroup>
-      <_FrameworkAssemblies Include="@(_ActiveTFMFileDependencies->WithMetadataValue('FileGroup', 'FrameworkAssembly'))" />
+      <_FrameworkAssemblies Include="@(_TFMOnlyFileDependencies->WithMetadataValue('FileGroup', 'FrameworkAssembly'))" />
 
       <ResolvedFrameworkAssemblies Include="%(_FrameworkAssemblies.FrameworkAssembly)">
         <Private>false</Private>

test/Microsoft.NET.Build.Tests/GivenThatWeWantToBuildALibrary.cs

@@ -555,5 +555,27 @@ public void It_fails_gracefully_if_targetframework_is_empty()
                 .And.HaveStdOutContaining("TargetFramework=''") // new deliberate error
                 .And.NotHaveStdOutContaining(">="); // old error about comparing empty string to version
         }
+
+        [Fact]
+        public void It_passes_ridless_target_to_compiler()
+        {
+            var testAsset = _testAssetsManager
+                .CopyTestAsset("AppWithLibrary", "RidlessLib")
+                .WithSource()
+                .Restore(relativePath: "TestLibrary");
+
+            var libraryProjectDirectory = Path.Combine(testAsset.TestRoot, "TestLibrary");
+            var fullPathProjectFile = new BuildCommand(Stage0MSBuild, libraryProjectDirectory).FullPathProjectFile;
+
+            // compile should still pass with unknown RID because references are always pulled 
+            // from RIDLess target
+            var buildCommand = Stage0MSBuild.CreateCommandForTarget(
+                "Compile", fullPathProjectFile, "/p:RuntimeIdentifier=unknownrid");
+
+            buildCommand
+                .Execute()
+                .Should()
+                .Pass();
+        }
     }
 }