build.proj

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <Import Project="dir.props" />

  <!-- required to build the projects in their specified order -->
  <PropertyGroup>
    <SerializeProjects>true</SerializeProjects>
  </PropertyGroup>
  
  <PropertyGroup>
    <!-- To disable the restoration of packages, set RestoreDuringBuild=false or pass /p:RestoreDuringBuild=false.-->
    <RestoreDuringBuild Condition="'$(RestoreDuringBuild)'==''">true</RestoreDuringBuild>
  </PropertyGroup>

  <PropertyGroup>
    <TraversalBuildDependencies>
      CreateOrUpdateCurrentVersionFile;
      CreateVersionInfoFile;
      BatchRestorePackages;
      ValidateExactRestore;
      BuildCustomTasks;
    </TraversalBuildDependencies>
    <TraversalBuildDependsOn>
      $(TraversalBuildDependencies);
      $(TraversalBuildDependsOn);
    </TraversalBuildDependsOn>
  </PropertyGroup>

  <ItemGroup>
    <Project Include="src/dir.proj" />
    <Project Include="src/pkg/packaging/dir.proj"/>
    <Project Include="$(MSBuildThisFileDirectory)src/test/dir.proj" Condition="'$(SkipTests)' != 'true'"/>
  </ItemGroup>

  <Target Name="BuildTraversalBuildDependencies"
          DependsOnTargets="$(TraversalBuildDependencies)" />

  <Target Name="BatchRestorePackages" Condition="'$(RestoreDuringBuild)'=='true'">
    <!-- Restore packages in a separate msbuild instance so that the buildversion props file generated in
         CreateVersionInfoFile target gets evaluated, this ensures VersionSuffix is set (especially during 
         'dotnet restore') to work around https://github.com/NuGet/Home/issues/4337 -->
    <MSBuild Projects="$(MSBuildThisFileDirectory)restore.proj" />
  </Target>

  <!-- Task from buildtools that uses lockfiles to validate that packages restored are exactly what were specified. -->
  <UsingTask TaskName="ValidateExactRestore" AssemblyFile="$(BuildToolsTaskDir)Microsoft.DotNet.Build.Tasks.dll" />

  <Target Name="ValidateExactRestore"
          Condition="'$(AllowInexactRestore)'!='true'">
    <ItemGroup>
      <ProjectJsonTemplateFiles Include="$(MSBuildThisFileDirectory)**\project.json.template" />
      <ProjectJsonsExcludingTemplateFiles Include="@(ProjectJsonFiles)" Exclude="@(ProjectJsonTemplateFiles)" />
    </ItemGroup>
    <ValidateExactRestore ProjectLockJsons="@(ProjectJsonsExcludingTemplateFiles->'%(RootDir)%(Directory)%(Filename).lock.json')" />
  </Target>

  <Import Project="dir.targets" />
  <Import Project="dir.traversal.targets" />
  <Import Project="$(ToolsDir)clean.targets" />
  <Import Project="$(ToolsDir)VersionTools.targets" Condition="Exists('$(ToolsDir)VersionTools.targets')" />


  <!-- Override RestorePackages from dir.traversal.targets and do a batch restore -->
  <Target Name="RestorePackages" DependsOnTargets="BatchRestorePackages" />

  <!-- Override clean from dir.traversal.targets and just remove the full BinDir -->
  <Target Name="CleanAllProjects">
    <RemoveDir Directories="$(BinDir)" />
  </Target>

</Project>