Product.proj

<Project DefaultTargets="Build">
  <PropertyGroup>
    <PreviewVersionSuffix Condition="'$(PreviewVersionSuffix)' == ''">preview-$([System.DateTime]::Now.AddYears(-2019).Year)$([System.DateTime]::Now.ToString("MMddHHmmss"))</PreviewVersionSuffix>
  </PropertyGroup>

  <Target Name="Build">
    <MSBuild Projects="Wilson.sln" Targets="Build" Properties="PreviewVersionSuffix=$(PreviewVersionSuffix)" />
  </Target>
  <Target Name="restore">
    <MSBuild Projects="Wilson.sln" Targets="restore" Properties="PreviewVersionSuffix=$(PreviewVersionSuffix)" />
  </Target>
  <Target Name="clean">
    <MSBuild Projects="Wilson.sln" Targets="clean" Properties="PreviewVersionSuffix=$(PreviewVersionSuffix)" />
  </Target>
  <Target Name="pack">
    <MSBuild Projects="Wilson.sln" Targets="pack" Properties="PreviewVersionSuffix=$(PreviewVersionSuffix)" />
  </Target>
  <Target Name="VSTest">
    <MSBuild Projects="Wilson.sln" Targets="VSTest" Properties="PreviewVersionSuffix=$(PreviewVersionSuffix)" />
  </Target>
</Project>