From 4182b0b5d2e4f6dab6a48f9789fc19ae6a6afd64 Mon Sep 17 00:00:00 2001
From: Nate McMaster <nate.mcmaster@microsoft.com>
Date: Mon, 18 Sep 2017 12:31:08 -0700
Subject: [PATCH] When BuildGraphOf is used, only pin package references to
 packages currently building

---
 build/RepositoryBuild.targets | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/build/RepositoryBuild.targets b/build/RepositoryBuild.targets
index bef1c6b508..1e1251913c 100644
--- a/build/RepositoryBuild.targets
+++ b/build/RepositoryBuild.targets
@@ -20,10 +20,19 @@
     <ItemGroup>
       <PinPackageSources Include="$(BuildDir)" />
       <PinPackageSources Include="$(_DependencyPackagesDirectory)" Condition="Exists('$(_DependencyPackagesDirectory)')" />
+      <PinnedArtifactInfo Include="@(ArtifactInfo)" Condition="'$(BuildGraphOf)' == ''" />
     </ItemGroup>
 
+    <!-- If we are building a sub-graph, we need to re-examine the list of artifacts that will actual build. -->
+    <MSBuild Projects="$(MSBuildProjectFullPath)"
+             Targets="GetArtifactInfo"
+             Properties="RepositoryRoot=$(_CloneRepositoryRoot)%(RepositoryBuildOrder.Identity)\;Configuration=$(Configuration);BuildNumber=$(BuildNumber)"
+             Condition="'$(BuildGraphOf)' != ''">
+      <Output TaskParameter="TargetOutputs" ItemName="PinnedArtifactInfo" />
+    </MSBuild>
+
     <RepoTasks.GenerateLineup
-      Artifacts="@(ArtifactInfo)"
+      Artifacts="@(PinnedArtifactInfo)"
       Repository="%(RepositoryBuildOrder.Identity)"
       OutputPath="%(RepositoryBuildOrder.RepositoryPath)\build\dependencies.g.targets"
       RestoreAdditionalSources="@(PinPackageSources)"