Custom MSBuild task with mutex

Example of usage

<!-- Replace -->
<MSBuild Projects="$(MSBuildProjectFullPath)"
				 Targets="Restore"
				 Properties="$(PackageRestoreProperties)"
				 BuildInParallel="true" />

<!-- With -->
<Import Project="...\MSBuildWithMutex.proj" />
<!-- ... -->
<Target Name="Restore...Packages" DependsOnTargets="CompileMSBuildWithMutex">
	<!-- RestoreProjectPackages: $(MSBuildProjectFullPath) is a All.proj including all our projects with Traversal MSBuild SDK -->
	<!-- RestoreBuildPackages: a Packages.props including all repo packages (e.g. tools) -->
	<MSBuildWithMutex Projects="$(MSBuildProjectFullPath)"
										Targets="Restore"
										Properties="$(PackageRestoreProperties)"
										BuildInParallel="true"
										MutexName="MSBuildRestore_$(USERNAME)" />
</Target>

MSBuildWithMutex.cs

using System;
using System.Diagnostics;
using System.Threading;
using Microsoft.Build.Framework;
using Microsoft.Build.Tasks;

namespace Ded
{
    public class MSBuildWithMutex : MSBuild
    {
        [Required]
        public string MutexName { get; set; }
        
        public override bool Execute()
        {
            var success = true;
            var mutex = new Mutex(false, MutexName);
            try
            {
                if (!mutex.WaitOne(0))
                {
                    Log.LogMessage(MessageImportance.High, "Waiting for mutex '{0}'...", MutexName);
                    mutex.WaitOne(-1);
                }
                success = base.Execute();
            }
            catch (Exception e)
            {
                Log.LogError(e.ToString());
                success = false;
            }
            finally
            {
                mutex.ReleaseMutex();
                mutex.Dispose();
            }
        }
    }
}

MSBuildWithMutex.proj

<Project ... >
  <PropertyGroup>
    <MSBuildWithMutexCs>$(MSBuildThisFileDirectory)\MSBuildWithMutex.cs</MSBuildWithMutexCs>
    <MSBuildWithMutexOutputPath>...</MSBuildWithMutexOutputPath>
    <MSBuildWithMutexDll>$(MSBuildWithMutexOutputPath)\Ded.MSBuildWithMutex.dll</MSBuildWithMutexDll>
  </PropertyGroup>
  <Target Name="CompileMSBuildWithMutex"
          Inputs="$(MSBuildWithMutexCs);$(MSBuildThisFileFullPath)"
          Outputs="$(MSBuildWithMutexDll)">
    <ItemGroup>
      <Sources Include="$(MSBuildWithMutexCs)" />
      <References Include="$(MSBuildExtensionsPath32)\Current\Bin\Microsoft.Build.Framework.dll" />
      <References Include="$(MSBuildExtensionsPath32)\Current\Bin\Microsoft.Build.Tasks.Core.dll" />
      <References Include="$(MSBuildExtensionsPath32)\Current\Bin\Microsoft.Build.Utilities.Core.dll" />
    </ItemGroup>
    <MakeDir Directories="$(MSBuildWithMutexOutputPath)" Condition="!Exists('$(MSBuildWithMutexOutputPath)')" />
    <Csc OutputAssembly="$(MSBuildWithMutexDll)"
         TargetType="Library"
         EmitDebugInformation="true"
         Sources="@(Sources)"
         References="@(References)"
         WarningLevel="4"
         TreatWarningAsErrors="true"
         Optimize="true" />
    <Message Text="MSBuildWithMutex -&gt; $(MSBuildWithMutexDll)" />
  </Target>
</Project>