Super Simple PowerShell task for MSBuild.

example.msbuild.xml

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <!-- @FearTheCowboy's Simple PowerShell Task for MSBuild -->
  <UsingTask TaskName="PowerShell" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v12.0.dll">
    <ParameterGroup><ScriptBlock ParameterType="System.String" Required="true" /></ParameterGroup>
    <Task><Reference Include="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v12.0.dll"/><Code Type="Class" Language="cs"><![CDATA[
    public class PowerShell : Microsoft.Build.Tasks.Exec {
        public string ScriptBlock {set { EchoOff=true; Command = string.Format( "@powershell \"Invoke-Command -ScriptBlock {{ $errorActionPreference='Stop'; {0} ; exit $LASTEXITCODE }} \"",  value.Replace("\"","\"\"").Replace("\r\n",";").Replace("\n",";").Replace("\r",";")); } }
    }]]></Code></Task>
  </UsingTask>

  <PropertyGroup>
    <MyTestScript>
    $foo = 'Hello There'

    echo "$foo  - script dir : $(MSBuildThisFileDirectory)"
    </MyTestScript>
  </PropertyGroup>
  
  <Target Name="Build">
    <PowerShell  ScriptBlock="$(MyTestScript)" />
  </Target>
</Project>

👍 Thanx!!!