Microsoft.WinGet.Configuration samples (#3369)

Add README and samples for the Microsoft.WinGet.Configuration module

src/PowerShell/Microsoft.WinGet.Client/README.md

@@ -48,15 +48,6 @@ If the new cmdlet introduces a new dependency, please make sure to add it in the
 - Uninstall-WinGetPackage
 - Update-WinGetPackage
 
-
-## Prerequisites
-
-The PowerShell module has a dependency on the latest [Microsoft Visual C++ Redistributable](https://learn.microsoft.com/cpp/windows/latest-supported-vc-redist?view=msvc-170) package which can be downloaded or installed through the Windows Package Manager (WinGet) by running the following command:
-
-```
-winget install --id Microsoft.VCRedist.2015+.x64
-```
-
 ## Quick Start Guide
 
 **To run the module, make sure you are using the latest version of PowerShell (not Windows PowerShell)**. 

src/PowerShell/Microsoft.WinGet.Configuration/Examples/Sample_InvokeConfiguration.ps1

@@ -0,0 +1,26 @@
+<#
+    .SYNOPSIS
+        Performs a WinGet Configuration and synchronously wait for its completion.
+        Use Invoke-WinGetConfiguration to perform a WinGet Configuration.
+#>
+
+param (
+    [Parameter(Mandatory)]
+    $configFile
+)
+
+if (-not(Get-Module -Name Microsoft.WinGet.Configuration -ListAvailable))
+{
+    Install-Module Microsoft.WinGet.Configuration -AllowPrerelease
+}
+
+Import-Module Microsoft.WinGet.Configuration
+
+$configSet = Get-WinGetConfiguration -File $configFile
+
+# Calling this cmdlet is not required, but it will performed by Invoke/Start
+# if not done before.
+$configSet = Get-WinGetConfigurationDetails -Set $configSet
+
+# Optionally pass -AcceptConfigurationAgreements to accept the agreements.
+Invoke-WinGetConfiguration -Set $configSet

src/PowerShell/Microsoft.WinGet.Configuration/Examples/Sample_StartConfiguration.ps1

@@ -0,0 +1,23 @@
+<#
+    .SYNOPSIS
+        Performs a WinGet Configuration asynchronously.
+        Use Start-WinGetConfiguration to perform a WinGet Configuration.
+#>
+
+param (
+    [Parameter(Mandatory)]
+    $configFile
+)
+
+if (-not(Get-Module -Name Microsoft.WinGet.Configuration -ListAvailable))
+{
+    Install-Module Microsoft.WinGet.Configuration -AllowPrerelease
+}
+
+Import-Module Microsoft.WinGet.Configuration
+
+# Starts the configuration in the background
+$configJob = Get-WinGetConfiguration -File $configFile | Start-WinGetConfiguration
+
+# This will block until the configuration is completed. Or print the results if already done.
+Complete-WinGetConfiguration -ConfigurationJob $configJob

src/PowerShell/Microsoft.WinGet.Configuration/README.md

@@ -0,0 +1,77 @@
+# Windows Package Manager Configuration PowerShell Module
+
+The Windows Package Manager Configuration PowerShell Module is made up on two components
+
+1. The `Microsoft.WinGet.Configuration.Cmdlets` project which contains cmdlet implementations.
+2. The `Microsoft.WinGet.Configuration.Engine` project which contain the real logic for the cmdlets.
+
+## Cmdlets
+- Get-WinGetConfiguration
+- Get-WinGetConfigurationDetails
+- Invoke-WinGetConfiguration
+- Start-WinGetConfiguration
+- Complete-WinGetConfiguration
+
+## Syntax 
+```
+Get-WinGetConfiguration -File <string> [<CommonParameters>]
+
+Get-WinGetConfigurationDetails -Set <PSConfigurationSet> [<CommonParameters>]
+
+Invoke-WinGetConfiguration -Set <PSConfigurationSet> [-AcceptConfigurationAgreements] [<CommonParameters>]
+
+Start-WinGetConfiguration -Set <PSConfigurationSet> [-AcceptConfigurationAgreements] [<CommonParameters>]
+
+Complete-WinGetConfiguration -ConfigurationJob <PSConfigurationJob> [<CommonParameters>]
+```
+
+## Prerequisites
+
+Minimum PowerShell 7 version: 7.2.8
+
+## Telemetry
+Telemetry is enabled by default. To disable it one should set the POWERSHELL_TELEMETRY_OPTOUT env variable to “1”, “yes” or “true”.
+
+## Building the PowerShell Module Locally
+After building the Microsoft.WinGet.Configuration.Cmdlets project, the `Microsoft.WinGet.Configuration` PowerShell module can be found in the output directory in the `PowerShell` folder. For example if you built the project as x64 release, you should expect to find the module files in `$(SolutionDirectory)/src/x64/Release/PowerShell`.
+
+
+## Adding a new cmdlet
+In order to avoid [assembly dependency conflicts](https://learn.microsoft.com/en-us/powershell/scripting/dev-cross-plat/resolving-dependency-conflicts?view=powershell-7.3) this project uses a custom `AssemblyLoadContext` that load all dependencies.
+
+Microsoft.WinGet.Configuration.Cmdlets.dll is the binary that gets loaded when the module is imported. When Microsoft.WinGet.Configuration.Engine.dll is getting loaded the resolving handler use the custom ALC to load it. Then all the dependencies of that binary will be loaded using that custom context.
+
+The dependencies are laid out in two directories: `DirectDependencies` and `SharedDependencies`. The resolving handler looks for binaries under `DirectDependencies` and uses the custom ALC to load them. The custom ALC load any binaries in `DirectDependencies` and `SharedDependencies`.
+
+Exception: WinRT.Runtime.dll doesn't support getting loaded in multiple times in the same process, because it affects static state in the CLR itself. We special case it to get loaded in by the default loader.
+
+### Current layout.
+```
+Microsoft.WinGet.Configuration.Cmdlets.dll
+DirectDependencies\Microsoft.WinGet.Configuration.Engine.dll
+SharedDependencies\Microsoft.Management.Configuration.Processor.dll
+SharedDependencies\Microsoft.Windows.SDK.NET.dll
+SharedDependencies\WinRT.Runtime.dll
+SharedDependencies\x64\Microsoft.Management.Configuration.dll
+SharedDependencies\x64\Microsoft.Management.Configuration.Projection.dll
+SharedDependencies\x86\Microsoft.Management.Configuration.dll
+SharedDependencies\x86\Microsoft.Management.Configuration.Projection.dll
+```
+If the new cmdlet introduces a new dependency, please make sure to add it to the proper location in the AfterBuild tasks in Microsoft.WinGet.Configuration.Cmdlets.csproj.
+
+### Dependency graph
+```mermaid
+graph TD;
+    subgraph DF[Default Loader]
+        DF_1[Cmdlets.dll]
+        DF_2[WinRT.Runtime.dll]
+    end
+    subgraph ALC[Custom ALC]
+        ALC_1[Engine.dll]
+        ALC_2[Other dependencies]
+        ALC_1--> ALC_2
+    end
+
+DF_1--> ALC_1
+ALC_1 --> DF_2
+```