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" />

  <!-- Inline task to bootstrap the build to enable downloading nuget.exe -->
  <UsingTask TaskName="DownloadFile" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v12.0.dll">
    <ParameterGroup>
      <Address ParameterType="System.String" Required="true"/>
      <FileName ParameterType="System.String" Required="true" />
    </ParameterGroup>
    <Task>
      <Reference Include="System" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
           var directory = System.IO.Path.GetDirectoryName(FileName);
           System.IO.Directory.CreateDirectory(directory);
           var client = new System.Net.WebClient();
           client.Proxy = System.Net.WebRequest.DefaultWebProxy;
           client.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
           client.DownloadFile(Address, FileName);
        ]]>
      </Code>
    </Task>
  </UsingTask>

  <Target Name="_RestoreBuildTools"
    BeforeTargets="Build"
    Inputs="$(BuildToolsTargetInputs)"
    Outputs="$(BuildToolsTargetOutputs)"
    >

    <!-- Download latest nuget.exe -->
    <DownloadFile
      Condition="!Exists($(NuGetToolPath))"
      Address="http://nuget.org/nuget.exe"
      FileName="$(NuGetToolPath)" />

    <!-- Restore build tools -->
    <Exec
      StandardOutputImportance="Low"
      Command="&quot;$(NuGetToolPath)&quot; install &quot; $(SourceDir).nuget\packages.config &quot;  -o &quot; $(ToolsDir) &quot; $(NuGetConfigCommandLine)" />

    <Touch Files="$(BuildToolsInstallSemaphore)" AlwaysCreate="true" />
  </Target>

  <!-- Setup Nuget properties -->
  <PropertyGroup>
    <NuSpecPathSrc>$(PackagesDir)Microsoft.DotNet.CoreCLR.nuspec</NuSpecPathSrc>
    <NuSpecPathBin>$(PackagesBinDir)\Microsoft.DotNet.CoreCLR.nuspec</NuSpecPathBin>
  </PropertyGroup>

  <ItemGroup>
    <NuSpecs Include="$(NuSpecPathBin)" />
  </ItemGroup>

  <!-- Generate Microsoft.Dotnet.CoreCLR nuget package -->
  <Target Name="BuildNuGetPackages" AfterTargets="Build" Condition="'$(BuildNugetPackage)' != 'false'">
    <MakeDir Directories="$(PackagesBinDir)" Condition="!Exists('$(PackagesBinDir)')" />
    <Copy SourceFiles="$(NuSpecPathSrc)" DestinationFiles="$(NuSpecPathBin)" />
    <Exec Command="$(NuGetToolPath) pack &quot;%(NuSpecs.Identity)&quot; -NoPackageAnalysis -OutputDirectory &quot;$(PackagesBinDir)&quot;" />
  </Target>

  <ItemGroup>
    <PDBSToMove Include="$(BinDir)mscorlib.pdb"/>
  </ItemGroup>

  <PropertyGroup>
    <MscorlibPDBPath>$(BinDir)mscorlib.pdb</MscorlibPDBPath>
  </PropertyGroup>
  
  <Target Name="MovePDB" AfterTargets="Build">
    <Move Condition="Exists($(MscorlibPDBPath))"
        SourceFiles="@(PDBSToMove)"
        DestinationFolder="$(BinDir)PDB"
    />
  </Target>
  
  <!-- Build mscorlib -->
  <ItemGroup>
    <Project Include="src\mscorlib\mscorlib.csproj" />
  </ItemGroup>

  <Import Project="dir.traversal.targets" />

  <!-- Override clean from dir.traversal.targets and just remove the full BinDir -->
  <Target Name="Clean">
    <Delete Files="$(BinDir)mscorlib.*" />
  </Target>
</Project>