Directory.Build.targets

<Project>
  <Sdk Name="Microsoft.Build.CentralPackageVersions" Version="2.0.79" />

  <PropertyGroup>
    <Product>$(AssemblyName) ($(TargetFramework))</Product>
  </PropertyGroup>

  <Target Name="DeleteCachedPackage" Condition="'$(CI)' != 'true'" BeforeTargets="Pack">
    <ItemGroup>
      <ToDelete Include="$(PackageOutputPath)\$(PackageId).$(GitBaseVersionMajor).$(GitBaseVersionMinor).$(GitBaseVersionPatch)*.*" />
      <ToDelete Include="$(LocalArtifactStagingDirectory)\$(PackageId).$(GitBaseVersionMajor).$(GitBaseVersionMinor).*" />
    </ItemGroup>
    <Delete Files="@(ToDelete)" />
    <Exec Command='rd "$(NuGetPackageRoot)$(PackageId.ToLowerInvariant())" /q /s'
          Condition="Exists('$(NuGetPackageRoot)$(PackageId.ToLowerInvariant())') And '$(OS)' == 'Windows_NT'" />
    <Exec Command='rm -rf "$(NuGetPackageRoot)$(PackageId.ToLowerInvariant())"'
          Condition="Exists('$(NuGetPackageRoot)$(PackageId.ToLowerInvariant())') And '$(OS)' != 'Windows_NT'" />
  </Target>

</Project>