dir.traversal.targets

<Project>
  <Import Project="$(RepositoryEngineeringDir)dir.traversal.targets" />

  <PropertyGroup Condition="'$(BuildingAnOfficialBuildLeg)' == 'true'">
    <!-- During an official build, only build identity packages in the AllConfigurations build -->
    <SkipBuildIdentityPackage Condition="'$(BuildAllConfigurations)' != 'true'">true</SkipBuildIdentityPackage>

    <!-- During an official build, skip building runtime packages on AllConfigurations build -->
    <SkipBuildRuntimePackage Condition="'$(BuildAllConfigurations)' == 'true'">true</SkipBuildRuntimePackage>
  </PropertyGroup>

  <PropertyGroup>
    <TraversalBuildDependsOn>
      FilterProjectsPackageRID;
      $(TraversalBuildDependsOn);
    </TraversalBuildDependsOn>
  </PropertyGroup>

  <!-- When @(BuildRID) is set, filter the set of projects down to only those applicable to $(PackageRID) -->
  <Target Name="FilterProjectsPackageRID" Condition="'@(BuildRID)' != ''">
    <ItemGroup>
      <!-- Build identity package, when SkipBuildIdentityPackage is not set -->
      <_projectsToBuild Include="@(Project)" Condition="'%(Project.PackageTargetRuntime)' == '' AND '$(SkipBuildIdentityPackage)' != 'true'" />
      <!-- Build packages for current RID, when SkipBuildRuntimePackage is not set -->
      <_projectsToBuild Include="@(Project)" Condition="'%(Project.PackageTargetRuntime)' == '$(PackageRID)' AND '$(SkipBuildRuntimePackage)' != 'true'" />
    </ItemGroup>

    <ItemGroup>
      <Project Remove="@(Project)" />
      <Project Include="@(_projectsToBuild)" />
    </ItemGroup>

    <PropertyGroup>
      <!-- don't use BuildConfiguration filtering -->
      <FilterProjectsByBuildConfiguration>false</FilterProjectsByBuildConfiguration>
    </PropertyGroup>
  </Target>
</Project>