Directory.Build.targets

<Project>
  <!--
    It is tempting to place the SDK ref here so that all the projects benefit from it
    However, since this repo has C++ VCXPROJ projects, that doesn't work. It will pull
    in requirements that break a VCXPROJ (or anything still stuck in the dark ages with Packages.config)
    <Sdk Name="Microsoft.Build.CentralPackageVersions"/>
  -->
  <!--
  Since Nuget.config is configured to include the build output location this
  will ensure the folder exists during restore so that it won't fail.
  -->
  <Target Name="CreateBuildOutputNuget" BeforeTargets="Restore;Build;Rebuild">
      <MakeDir Directories="$(MSBuildThisFileDirectory)BuildOutput\NuGet" />
  </Target>

  <Target Name="SetProjectSpecficVersionDependentProperties" AfterTargets="SetVersionDependentProperties">
    <PropertyGroup>
      <LlvmVersion Condition="'$(LlvmVersion)'==''">$(LlvmVersionMajor).$(LlvmVersionMinor).$(LlvmVersionPatch)</LlvmVersion>
      <NuspecProperties Condition="'$(NuspecFile)'!=''" >version=$(PackageVersion);llvmversion=$(LlvmVersion);buildbinoutput=$(BaseOutputPath);configuration=$(Configuration);$(NuspecProperties)</NuspecProperties>
    </PropertyGroup>
  </Target>

  <!-- Download nuget.exe if it isn't found-->
  <Target Name="_DownloadNugetExe" >
    <MakeDir Directories="$(PackageOutputPath)" Condition="!EXISTS('$(PackageOutputPath')" />
    <DownloadFile Condition="!EXISTS('$(PackageOutputPath)\NuGet.exe')"
                  SourceUrl="https://dist.nuget.org/win-x86-commandline/latest/nuget.exe"
                  DestinationPath="$(PackageOutputPath)\NuGet.exe"
                  />
  </Target>

  <!-- Custom task to download a file from a web URL -->
  <UsingTask TaskName="DownloadFile"
             TaskFactory="CodeTaskFactory"
             AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll"
           >
      <ParameterGroup>
          <SourceUrl ParameterType="System.String" Required="true"/>
          <DestinationPath ParameterType="System.String" Required="true"/>
      </ParameterGroup>
      <Task>
          <Using Namespace="System.Net"/>
          <Code Type="Fragment" Language="cs">
              <![CDATA[
        var client = new WebClient();
        client.DownloadFile( SourceUrl, DestinationPath );
      ]]>
          </Code>
      </Task>
  </UsingTask>

  <!-- Create NuGet packages for NuSpec property in VCXPROJ projects -->
  <Target Name="Pack" DependsOnTargets="_DownloadNugetExe;SetProjectSpecficVersionDependentProperties" Condition="'$(MSBuildProjectExtension)'=='.vcxproj'">
    <Exec Condition="exists('$(NuSpecFile)')"
          Command='"$(PackageOutputPath)NuGet.exe" pack $(NuSpecFile) -OutputDirectory $(PackageOutputPath) -Properties $(NuspecProperties) -NoPackageAnalysis' />
  </Target>

  <Target Name="EnsureBuildOutputPaths" BeforeTargets="Build;Restore">
    <MakeDir Directories="$(PackageOutputPath)"/>
  </Target>

  <Target Name="ShowBuildParameters" AfterTargets="SetProjectSpecficVersionDependentProperties">
    <Message Importance="normal" Text="              BuildRootDir: $(BuildRootDir)" />
    <Message Importance="normal" Text="       BaseBuildOutputPath: $(BaseBuildOutputPath)" />
    <Message Importance="normal" Text="BaseIntermediateOutputPath: $(BaseIntermediateOutputPath)" />
    <Message Importance="normal" Text="                    IntDir: $(IntDir)" />
    <Message Importance="normal" Text="            BaseOutputPath: $(BaseOutputPath)" />
    <Message Importance="normal" Text="           FullBuildNumber: $(FullBuildNumber)"/>
    <Message Importance="normal" Text="            PackageVersion: $(PackageVersion)"/>
    <Message Importance="normal" Text="               FileVersion: $(FileVersion)"/>
    <Message Importance="normal" Text="               LlvmVersion: $(LlvmVersion)"/>
    <Message Importance="normal" Text="                  Platform: $(Platform)"/>
    <Message Importance="normal" Text="             Configuration: $(Configuration)"/>
  </Target>
</Project>