Add a VMR initialization (bootstrap) process (#14343)

Adds the possibility to initialize a fresh VMR off of the current `dotnet/installer` commit.
Similarly to the tarball generation, the process can be triggered by running:
```
./build.sh /p:InitializeVMR=true /p:VmrDir=[Path were VMR will be created]
```

eng/Build.props

@@ -1,12 +1,30 @@
 <Project>
-  <ItemGroup Condition=" '$(ArcadeBuildTarball)' != 'true' ">
-    <ProjectToBuild Include="$(RepoRoot)Microsoft.DotNet.Cli.sln" />
-    <ProjectToBuild Condition="'$(OS)' == 'Windows_NT' And ('$(Architecture)' == 'x86' Or '$(Architecture)' == 'x64' Or '$(Architecture)' == 'arm64')" 
-                    Include="$(RepoRoot)eng\version.csproj;
-                             $(RepoRoot)eng\native.proj" />
-  </ItemGroup>
-  <ItemGroup Condition=" '$(ArcadeBuildTarball)' == 'true' " >
-    <ProjectToBuild Include="$(RepoRoot)src/SourceBuild/Arcade/src/SourceBuild.Tasks.csproj" BuildInParallel="false" />
-    <ProjectToBuild Include="$(RepoRoot)src/SourceBuild/tarball/BuildSourceBuildTarball.proj" BuildInParallel="false" />
-  </ItemGroup>
+  <Choose>
+      <When Condition=" '$(ArcadeBuildTarball)' == 'true' ">
+        <!-- Source build / tarball generation -->
+        <ItemGroup>
+          <ProjectToBuild Include="$(RepoRoot)src/SourceBuild/Arcade/src/SourceBuild.Tasks.csproj" BuildInParallel="false" />
+          <ProjectToBuild Include="$(RepoRoot)src/SourceBuild/tarball/BuildSourceBuildTarball.proj" BuildInParallel="false" />
+        </ItemGroup>
+      </When>
+
+      <When Condition=" '$(InitializeVMR)' == 'true' ">
+        <!-- VMR bootstrap -->
+        <ItemGroup>
+          <ProjectToBuild Include="$(RepoRoot)src/SourceBuild/Arcade/src/SourceBuild.Tasks.csproj" BuildInParallel="false" />
+          <ProjectToBuild Include="$(RepoRoot)src/VirtualMonoRepo/Tasks/VirtualMonoRepo.Tasks.csproj" BuildInParallel="false" />
+          <ProjectToBuild Include="$(RepoRoot)src/VirtualMonoRepo/InitializeVMR.proj" BuildInParallel="false" />
+        </ItemGroup>
+      </When>
+
+      <Otherwise>
+        <!-- Regular build -->
+        <ItemGroup>
+          <ProjectToBuild Include="$(RepoRoot)Microsoft.DotNet.Cli.sln" />
+          <ProjectToBuild Condition="'$(OS)' == 'Windows_NT' And ('$(Architecture)' == 'x86' Or '$(Architecture)' == 'x64' Or '$(Architecture)' == 'arm64')" 
+                          Include="$(RepoRoot)eng\version.csproj;
+                                   $(RepoRoot)eng\native.proj" />
+        </ItemGroup>
+      </Otherwise>
+  </Choose>
 </Project>

eng/Version.Details.xml

@@ -213,6 +213,14 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>34dff939b4a91e4693f78a856e0e055c1a3f3fba</Sha>
     </Dependency>
+    <Dependency Name="Microsoft.DotNet.DarcLib" Version="1.1.0-beta.22422.1">
+      <Uri>https://github.com/dotnet/arcade-services</Uri>
+      <Sha>a27d5e56acf479b4a0944a0cf4511acb22d4a75b</Sha>
+    </Dependency>
+    <Dependency Name="Microsoft.Extensions.Logging.Console" Version="7.0.0-preview.7.22375.6">
+      <Uri>https://github.com/dotnet/runtime</Uri>
+      <Sha>eecb02807867cad56cd05badddef65e432248b75</Sha>
+    </Dependency>
     <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="7.0.0-alpha.1.22416.1">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
       <Sha>c1bc837421e41a673cb30bf670c0cdd83ac09b75</Sha>

eng/Versions.props

@@ -28,6 +28,10 @@
     <!-- Dependency from https://github.com/dotnet/arcade -->
     <MicrosoftDotNetBuildTasksInstallersPackageVersion>7.0.0-beta.22419.1</MicrosoftDotNetBuildTasksInstallersPackageVersion>
   </PropertyGroup>
+  <PropertyGroup>
+    <!-- Dependency from https://github.com/dotnet/arcade-services -->
+    <MicrosoftDotNetDarcLibVersion>1.1.0-beta.22422.1</MicrosoftDotNetDarcLibVersion>
+  </PropertyGroup>
   <PropertyGroup>
     <!-- Dependency from https://github.com/dotnet/winforms -->
     <MicrosoftDotnetWinFormsProjectTemplatesPackageVersion>7.0.0-rc.1.22377.2</MicrosoftDotnetWinFormsProjectTemplatesPackageVersion>
@@ -171,6 +175,7 @@
     <VersionToolsVersion>2.2.0-beta.19072.10</VersionToolsVersion>
     <DotnetDebToolVersion>2.0.0</DotnetDebToolVersion>
     <MicrosoftNETTestSdkVersion>17.4.0-preview-20220813-01</MicrosoftNETTestSdkVersion>
+    <MicrosoftExtensionsLoggingConsoleVersion>7.0.0-preview.7.22375.6</MicrosoftExtensionsLoggingConsoleVersion>
   </PropertyGroup>
   <!-- dependencies for source-build tarball -->
   <PropertyGroup>

src/SourceBuild/Arcade/src/SourceBuild.Tasks.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net5.0</TargetFrameworks>
+    <TargetFrameworks>net7.0</TargetFrameworks>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <RunAnalyzers>false</RunAnalyzers>
     <Nullable>disable</Nullable>

src/SourceBuild/Arcade/tools/BuildTasks.props

@@ -2,6 +2,6 @@
 <!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. -->
 <Project>
   <PropertyGroup>
-    <SourceBuildTasksAssembly>$(RepoRoot)\artifacts\bin\SourceBuild.Tasks\$(Configuration)\net5.0\SourceBuild.Tasks.dll</SourceBuildTasksAssembly>
+    <SourceBuildTasksAssembly>$(RepoRoot)\artifacts\bin\SourceBuild.Tasks\$(Configuration)\net7.0\SourceBuild.Tasks.dll</SourceBuildTasksAssembly>
   </PropertyGroup>
 </Project>

src/SourceBuild/Arcade/tools/SourceBuildArcadeTarball.targets

@@ -14,7 +14,7 @@
 
   <PropertyGroup>
     <ArtifactsDir>$(RepoRoot)artifacts/</ArtifactsDir>
-    <TarballDir>$(ArtifactsDir)tarball/</TarballDir>
+    <TarballDir Condition=" '$(TarballDir)' == '' ">$(ArtifactsDir)tarball/</TarballDir>
     <TarballRootDir>$([MSBuild]::EnsureTrailingSlash('$(TarballDir)'))</TarballRootDir>
     <TarballSourceDir>$(TarballRootDir)src/</TarballSourceDir>
     <TarballGitInfoDir>$(TarballRootDir)git-info/</TarballGitInfoDir>
@@ -234,8 +234,8 @@
       SourceBuildMetadataDir="$(TarballGitInfoDir)"
       Dependencies="@(SourceBuildRepos)" />
 
-    <Message Text="--> Dependencies for $(TarballVersionDetailsFile):" Importance="High" />
-    <Message Text="-->     [@(SourceBuildRepos)]" Importance="High" />
+    <Message Text="--> Dependencies for $(TarballVersionDetailsFile):" Importance="High" Condition=" '@(SourceBuildRepos)' != '' " />
+    <Message Text="-->     %(SourceBuildRepos.SourceBuildRepoName) / %(SourceBuildRepos.Sha)" Importance="High" Condition=" '@(SourceBuildRepos)' != '' " />
     <MSBuild Projects="$(MSBuildProjectFile)"
       Condition=" '@(SourceBuildRepos)' != '' "
       Targets="CloneRepoAndDependentsRecursive"
@@ -285,7 +285,7 @@
 
     <Message Text="Restoring text only packages..." Importance="High" />
 
-    <MSBuild Projects="../Arcade/tools/TextOnlyPackages.csproj"
+    <MSBuild Projects="$(RepoRoot)src/SourceBuild/Arcade/tools/TextOnlyPackages.csproj"
              Properties="TargetPackagesPath=$(TextOnlyPackageRestoreDir)"
              Targets="Restore" />
   </Target>
@@ -296,7 +296,7 @@
       <EngCommonContent Include="$(RepoRoot)eng/common/**/*" />
     </ItemGroup>
 
-    <Copy
+    <Copy Condition=" '$(InitializeVMR)' != 'true' "
       SourceFiles="$(TarballGitInfoDir)runtime.props"
       DestinationFiles="$(TarballGitInfoDir)runtime-portable.props" />
 
@@ -428,4 +428,3 @@
   </Target>
 
 </Project>
-

src/SourceBuild/tarball/content/src/source-mappings.json

@@ -0,0 +1,140 @@
+{
+    "defaults": {
+        "defaultRef": "main",
+        "exclude": [
+            "**/*.dll",
+            "**/*.Dll",
+            "**/*.exe",
+            "**/*.pdb",
+            "**/*.mdb",
+            "**/*.zip",
+            "**/*.nupkg"
+        ]
+    },
+    "mappings": [
+        {
+            "name": "arcade",
+            "defaultRemote": "https://github.com/dotnet/arcade",
+            "include": [
+                "*.*",
+                ".*",
+                "eng/**/*",
+                "src/**/*",
+                "scripts/**/*"
+            ],
+            "exclude": [
+                "**/tests/**/*",
+                "**/*.Tests/**/*"
+            ]
+        },
+        {
+            "name": "aspnetcore",
+            "defaultRemote": "https://github.com/dotnet/aspnetcore"
+        },
+        {
+            "name": "clicommandlineparser",
+            "defaultRemote": "https://github.com/dotnet/clicommandlineparser"
+        },
+        {
+            "name": "command-line-api",
+            "defaultRemote": "https://github.com/dotnet/command-line-api"
+        },
+        {
+            "name": "deployment-tools",
+            "defaultRemote": "https://github.com/dotnet/deployment-tools"
+        },
+        {
+            "name": "diagnostics",
+            "defaultRemote": "https://github.com/dotnet/diagnostics"
+        },
+        {
+            "name": "format",
+            "defaultRemote": "https://github.com/dotnet/format"
+        },
+        {
+            "name": "fsharp",
+            "defaultRemote": "https://github.com/dotnet/fsharp"
+        },
+        {
+            "name": "installer",
+            "defaultRemote": "https://github.com/dotnet/installer",
+            "defaultRef": "vmr"
+        },
+        {
+            "name": "linker",
+            "defaultRemote": "https://github.com/dotnet/linker"
+        },
+        {
+            "name": "msbuild",
+            "defaultRemote": "https://github.com/dotnet/msbuild"
+        },
+        {
+            "name": "nuget-client",
+            "defaultRemote": "https://github.com/NuGet/NuGet.Client",
+            "defaultRef": "dev"
+        },
+        {
+            "name": "razor-compiler",
+            "defaultRemote": "https://github.com/dotnet/razor-compiler"
+        },
+        {
+            "name": "roslyn",
+            "defaultRemote": "https://github.com/dotnet/roslyn"
+        },
+        {
+            "name": "roslyn-analyzers",
+            "defaultRemote": "https://github.com/dotnet/roslyn-analyzers"
+        },
+        {
+            "name": "runtime",
+            "defaultRemote": "https://github.com/dotnet/runtime"
+        },
+        {
+            "name": "sdk",
+            "defaultRemote": "https://github.com/dotnet/sdk"
+        },
+        {
+            "name": "source-build",
+            "defaultRemote": "https://github.com/dotnet/source-build"
+        },
+        {
+            "name": "source-build-externals",
+            "defaultRemote": "https://github.com/dotnet/source-build-externals",
+            "exclude": [
+                "**/humanizer/samples/**/*.js"
+            ]
+        },
+        {
+            "name": "source-build-reference-packages",
+            "defaultRemote": "https://github.com/dotnet/source-build-reference-packages"
+        },
+        {
+            "name": "sourcelink",
+            "defaultRemote": "https://github.com/dotnet/sourcelink"
+        },
+        {
+            "name": "symreader",
+            "defaultRemote": "https://github.com/dotnet/symreader"
+        },
+        {
+            "name": "templating",
+            "defaultRemote": "https://github.com/dotnet/templating"
+        },
+        {
+            "name": "test-templates",
+            "defaultRemote": "https://github.com/dotnet/test-templates"
+        },
+        {
+            "name": "vstest",
+            "defaultRemote": "https://github.com/microsoft/vstest"
+        },
+        {
+            "name": "xdt",
+            "defaultRemote": "https://github.com/dotnet/xdt"
+        },
+        {
+            "name": "xliff-tasks",
+            "defaultRemote": "https://github.com/dotnet/xliff-tasks"
+        }
+    ]
+}

src/VirtualMonoRepo/InitializeVMR.proj

@@ -0,0 +1,121 @@
+<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. -->
+<Project>
+  <PropertyGroup>
+    <ArtifactsDir>$(RepoRoot)artifacts/</ArtifactsDir>
+    <VirtualMonoRepoTasksAssembly>$(ArtifactsDir)bin/VirtualMonoRepo.Tasks/$(Configuration)/net7.0/VirtualMonoRepo.Tasks.dll</VirtualMonoRepoTasksAssembly>
+
+    <VmrDir Condition=" '$(VmrDir)' != '' ">$([MSBuild]::EnsureTrailingSlash('$(VmrDir)'))</VmrDir>
+    <TmpDir Condition=" '$(TmpDir)' == '' ">$(ArtifactsDir)tmp/</TmpDir>
+    <VmrDefaultBranch Condition=" '$(VmrDefaultBranch)' == '' ">main</VmrDefaultBranch>
+
+    <!-- We set this for the source build targets to work well -->
+    <TarballDir>$(VmrDir)</TarballDir>
+    <InitializeVMR>true</InitializeVMR>
+  </PropertyGroup>
+
+  <Import Project="../SourceBuild/Arcade/tools/SourceBuildArcadeTarball.targets" />
+
+  <!-- Pull back in some properties from the tarball defaults -->
+  <PropertyGroup>
+    <VmrGitInfoDir>$(TarballGitInfoDir)</VmrGitInfoDir>
+    <VmrSourceDir>$(TarballSourceDir)</VmrSourceDir>
+  </PropertyGroup>
+
+  <UsingTask TaskName="Microsoft.DotNet.VirtualMonoRepo.Tasks.VirtualMonoRepo_Initialize" AssemblyFile="$(VirtualMonoRepoTasksAssembly)" />
+
+  <Target Name="Build" DependsOnTargets="InitializeVMR" />
+
+  <!--
+    This target initializes a fresh VMR from scratch by assembling it similarly to the tarball.
+    Instead of cloning the repositories, we pull the sources via the `darc vmr initialize` command.
+    Most of the targets are reused from the tarball generation process (SourceBuildArcadeTarball.targets).
+  -->
+  <Target Name="InitializeVMR" DependsOnTargets="GenerateFullNuGetVersion;
+                                                 GenerateVersionFile;
+                                                 InitializeCleanVmr;
+                                                 CopyTarballContent;
+                                                 CommitInitialContent;
+                                                 SetupSelfGithubInfo;
+                                                 InitializeRepoAndDependentsRecursive;
+                                                 CommitGitInfoFiles;
+                                                 CopyTextOnlyPackages;
+                                                 CommitTextOnlyPackages">
+    <Message Text="VMR was successfully initialized in '$(VmrDir)'" Importance="High" />
+  </Target>
+
+  <Target Name="InitializeCleanVmr">
+    <RemoveDir Directories='$(VmrDir)' Condition=" EXISTS('$(VmrDir)') " />
+    <MakeDir Directories="$(VmrDir)" />
+    <MakeDir Directories="$(VmrGitInfoDir)" Condition=" '$(VmrGitInfoDir)' != '' " />
+    <MakeDir Directories="$(TmpDir)" Condition=" !EXISTS('$(TmpDir)') " />
+
+    <Exec Command="git init -b $(VmrDefaultBranch)" WorkingDirectory="$(VmrDir)" />
+  </Target>
+
+  <Target Name="CommitInitialContent">
+    <Exec Command="git add -A" WorkingDirectory="$(VmrDir)" />
+    <Exec Command="git commit -m 'VMR initialized'" WorkingDirectory="$(VmrDir)" />
+  </Target>
+
+  <Target Name="InitializeRepoAndDependentsRecursive"
+    DependsOnTargets="GetSourceBuildIntermediateNupkgNameConvention">
+
+    <Message Text="--> Initializing repo $(SourceBuildRepoName)" Importance="High" />
+    <PropertyGroup>
+      <SourceDir>$(SourceBuildRepoName)/</SourceDir>
+      <IndividualRepoSourceDir>$(VmrSourceDir)$(SourceDir)</IndividualRepoSourceDir>
+      <IndividualRepoSourceEngDir>$(IndividualRepoSourceDir)eng/</IndividualRepoSourceEngDir>
+      <IndividualRepoVersionDetailsFile>$(IndividualRepoSourceEngDir)Version.Details.xml</IndividualRepoVersionDetailsFile>
+    </PropertyGroup>
+
+    <VirtualMonoRepo_Initialize
+      Repository="$(SourceBuildRepoName)"
+      Revision="$(RepoSha)"
+      VmrPath="$(VmrDir)"
+      TmpPath="$(TmpDir)" />
+
+    <Message Text=" -> Done initializing repo $(SourceBuildRepoName)" Importance="High" />
+
+    <Tarball_ReadSourceBuildIntermediateNupkgDependencies
+      VersionDetailsXmlFile="$([MSBuild]::NormalizePath($(IndividualRepoVersionDetailsFile)))"
+      SourceBuildIntermediateNupkgPrefix="$(SourceBuildIntermediateNupkgPrefix)"
+      SourceBuildIntermediateNupkgRid="$(SourceBuildIntermediateNupkgRid)"
+      ConvertInternalRepos="$(ConvertInternalRepos)">
+      <Output TaskParameter="Dependencies" ItemName="SourceBuildRepos" />
+    </Tarball_ReadSourceBuildIntermediateNupkgDependencies>
+
+    <!-- Remove repo if it has already be cloned at any sha.  This results in
+         The commit sha for the cloned repo in the tarball being the one that
+         was first encountered. -->
+    <ItemGroup>
+      <SourceBuildRepos Remove="@(SourceBuildRepos)" Condition=" EXISTS('$(VmrGitInfoDir)%(SourceBuildRepoName).props')" />
+    </ItemGroup>
+
+    <Tarball_WriteSourceRepoProperties
+      SourceBuildMetadataDir="$(VmrGitInfoDir)"
+      Dependencies="@(SourceBuildRepos)" />
+
+    <Message Text="--> Dependencies for $(IndividualRepoVersionDetailsFile):" Importance="High" Condition=" '@(SourceBuildRepos)' != '' " />
+    <Message Text="-->     %(SourceBuildRepos.SourceBuildRepoName) / %(SourceBuildRepos.Sha)" Importance="High" Condition=" '@(SourceBuildRepos)' != '' " />
+    <MSBuild Projects="$(MSBuildProjectFile)"
+      Condition=" '@(SourceBuildRepos)' != '' "
+      Targets="InitializeRepoAndDependentsRecursive"
+      Properties="SourceBuildRepoName=%(SourceBuildRepos.SourceBuildRepoName);RepoSha=%(SourceBuildRepos.Sha)" />
+
+  </Target>
+
+  <Target Name="CommitGitInfoFiles">
+    <Copy
+      SourceFiles="$(VmrGitInfoDir)runtime.props"
+      DestinationFiles="$(VmrGitInfoDir)runtime-portable.props" />
+
+    <Exec Command="git add git-info" WorkingDirectory="$(VmrDir)" />
+    <Exec Command="git commit -m 'Initialized git-info files'" WorkingDirectory="$(VmrDir)" />
+  </Target>
+
+  <Target Name="CommitTextOnlyPackages">
+    <Exec Command="git add packages/text-only" WorkingDirectory="$(VmrDir)" />
+    <Exec Command="git commit -m 'Initialized text-only packages'" WorkingDirectory="$(VmrDir)" />
+  </Target>
+
+</Project>

src/VirtualMonoRepo/Tasks/RemoteFactory.cs

@@ -0,0 +1,38 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Threading.Tasks;
+using Microsoft.DotNet.DarcLib;
+using Microsoft.DotNet.DarcLib.Helpers;
+
+namespace Microsoft.DotNet.VirtualMonoRepo.Tasks;
+
+internal class RemoteFactory : IRemoteFactory
+{
+    private readonly IProcessManager _processManager;
+    private readonly string _tmpPath;
+
+    public RemoteFactory(IProcessManager processManager, string tmpPath)
+    {
+        _processManager = processManager;
+        _tmpPath = tmpPath;
+    }
+
+    public Task<IRemote> GetBarOnlyRemoteAsync(Extensions.Logging.ILogger logger)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<IRemote> GetRemoteAsync(string repoUrl, Extensions.Logging.ILogger logger)
+    {
+        var githubClient = new DarcLib.GitHubClient(
+            _processManager.GitExecutable,
+            accessToken: null,
+            logger,
+            _tmpPath,
+            cache: null);
+
+        return System.Threading.Tasks.Task.FromResult<IRemote>(new Remote(githubClient, barClient: null, logger));
+    }
+}

src/VirtualMonoRepo/Tasks/VirtualMonoRepo.Tasks.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFrameworks>net7.0</TargetFrameworks>
+    <LangVersion>preview</LangVersion>
+    <Nullable>disable</Nullable>
+    <RunAnalyzers>false</RunAnalyzers>
+    <SignAssembly>false</SignAssembly>
+    <IsPackable>false</IsPackable>
+    <IsShipping>false</IsShipping>
+    <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Build.Framework" Version="$(MicrosoftBuildFrameworkVersion)" />
+    <PackageReference Include="Microsoft.Build.Utilities.Core" Version="$(MicrosoftBuildUtilitiesCoreVersion)" />
+    <PackageReference Include="Microsoft.DotNet.DarcLib" Version="$(MicrosoftDotNetDarcLibVersion)" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="$(MicrosoftExtensionsLoggingConsoleVersion)" />
+  </ItemGroup>
+
+</Project>

src/VirtualMonoRepo/Tasks/VirtualMonoRepo_Initialize.cs

@@ -0,0 +1,57 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Build.Framework;
+using Microsoft.DotNet.DarcLib;
+using Microsoft.DotNet.DarcLib.Helpers;
+using Microsoft.DotNet.DarcLib.VirtualMonoRepo;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Microsoft.DotNet.VirtualMonoRepo.Tasks;
+
+public class VirtualMonoRepo_Initialize : Build.Utilities.Task, ICancelableTask
+{
+    private readonly Lazy<IServiceProvider> _serviceProvider;
+    private readonly CancellationTokenSource _cancellationToken = new();
+
+    [Required]
+    public string Repository { get; set; }
+
+    [Required]
+    public string VmrPath { get; set; }
+
+    [Required]
+    public string TmpPath { get; set; }
+
+    public string Revision { get; set; }
+
+    public VirtualMonoRepo_Initialize()
+    {
+        _serviceProvider = new(CreateServiceProvider);
+    }
+
+    public override bool Execute() => ExecuteAsync().GetAwaiter().GetResult();
+
+    private async Task<bool> ExecuteAsync()
+    {
+        var factory = _serviceProvider.Value.GetRequiredService<IVmrManagerFactory>();
+        var vmrManager = await factory.CreateVmrManager(_serviceProvider.Value, VmrPath, TmpPath);
+        await vmrManager.InitializeVmr(Repository, Revision, false, _cancellationToken.Token);
+        return true;
+    }
+
+    public void Cancel() => _cancellationToken.Cancel();
+
+    private IServiceProvider CreateServiceProvider() => new ServiceCollection()
+        .AddLogging(b => b.AddConsole().AddFilter(l => l >= LogLevel.Information))
+        .AddTransient<IProcessManager>(sp => ActivatorUtilities.CreateInstance<ProcessManager>(sp, "git"))
+        .AddSingleton<ISourceMappingParser, SourceMappingParser>()
+        .AddSingleton<IVmrManagerFactory, VmrManagerFactory>()
+        .AddSingleton<IRemoteFactory>(sp => ActivatorUtilities.CreateInstance<RemoteFactory>(sp, TmpPath))
+        .BuildServiceProvider();
+}