Align single-component sln generation script with capabilities of gal…

…lery sln generation script

ProjectHeads/GenerateSingleSampleHeads.ps1

@@ -1,30 +1,48 @@
 <#
 .SYNOPSIS
     Uses the dotnet template tool to copy and rename project heads to run sample code for different platforms.
+
 .DESCRIPTION
     This is used to centralize configuration and reduce duplication of copying these heads for every project.
-
     This script also generates a solution for the project and will open Visual Studio.
+
 .PARAMETER componentPath
     Folder for the project to copy the project heads to.
-.PARAMETER heads
-    Which heads to include to copy, defaults to all. (Currently ignored.)
+
+.PARAMETER MultiTargets
+    Specifies the MultiTarget TFM(s) to include for building the components. The default value is 'all'.
+
+.PARAMETER ExcludeMultiTargets
+    Specifies the MultiTarget TFM(s) to exclude for building the components. The default value excludes targets that require additional tooling or workloads to build. Run uno-check to install the required workloads.
+
+.PARAMETER WinUIMajorVersion
+  Specifies the WinUI major version to use when building an Uno head. Also decides the package id and dependency variant. The default value is '2'.
+
 .PARAMETER UseDiagnostics
     Add extra diagnostic output to running slngen, such as a binlog, etc...
+
 .EXAMPLE
     C:\PS> .\GenerateSingleSampleHeads -componentPath components\testproj
     Builds project heads for component in testproj directory.
+
 .NOTES
     Author: Windows Community Toolkit Labs Team
     Date:   Feb 9, 2023
 #>
 Param (
+    [ValidateSet('all', 'wasm', 'uwp', 'wasdk', 'wpf', 'linuxgtk', 'macos', 'ios', 'android')]
+    [Alias("mt")]
+    [string[]]$MultiTargets = @('uwp', 'wasm', 'wasdk'),
+
+    [ValidateSet('wasm', 'uwp', 'wasdk', 'wpf', 'linuxgtk', 'macos', 'ios', 'android', 'netstandard')]
+    [string[]]$ExcludeMultiTargets = @(), # default settings
+
+    [Alias("winui")]
+    [int]$WinUIMajorVersion = 2,
+
     [Parameter(HelpMessage = "The path to the containing folder for a component where sample heads should be generated.")] 
     [string]$componentPath,
 
-    [Parameter(HelpMessage = "The heads that should be generated. If excluded, all heads will be generated. (Currently Ignored)")] 
-    [string[]]$heads = @("uwp", "wasm", "winappsdk", "tests.uwp", "tests.winappsdk"),
-
     [Parameter(HelpMessage = "Add extra diagnostic output to slngen generator.")]
     [switch]$UseDiagnostics = $false
 )
@@ -39,11 +57,55 @@ if ($null -ne $Env:Path -and $Env:Path.ToLower().Contains("msbuild") -eq $false)
     Exit
 }
 
+# If componentPath is not provided or is an empty string, use the $PSScriptRoot
+if ($null -eq $componentPath -or $componentPath -eq '')
+{
+    $componentPath = $pwd
+}
+
+# Multitarget handling
+# -----------------
+
+if ($MultiTargets.Contains('all')) {
+    $MultiTargets = @('wasm', 'uwp', 'wasdk', 'wpf', 'linuxgtk', 'macos', 'ios', 'android')
+}
+
+if ($null -eq $ExcludeMultiTargets)
+{
+    $ExcludeMultiTargets = @()
+}
+
+# Both uwp and wasdk share a targetframework. Both cannot be enabled at once.
+# If both are supplied, remove one based on WinUIMajorVersion.
+if ($MultiTargets.Contains('uwp') -and $MultiTargets.Contains('wasdk'))
+{
+    if ($WinUIMajorVersion -eq 2)
+    {
+        $ExcludeMultiTargets = $ExcludeMultiTargets + 'wasdk'
+    }
+    else
+    {
+        $ExcludeMultiTargets = $ExcludeMultiTargets + 'uwp'
+    }
+}
+
+$MultiTargets = $MultiTargets | Where-Object { $_ -notin $ExcludeMultiTargets }
+$ExcludeMultiTargets = $ExcludeMultiTargets | Where-Object { $_ -notin $MultiTargets }
+
+# Generate required props for preferences
+& $PSScriptRoot/../MultiTarget/UseTargetFrameworks.ps1 -MultiTargets $MultiTargets
+& $PSScriptRoot/../MultiTarget/UseUnoWinUI.ps1 $WinUIMajorVersion
+
+# Head generation
+# -----------------
+
 $headsFolderName = "heads"
 $componentName = (Get-Item $componentPath -ErrorAction Stop).Name
 
+$outputHeadsDir = "$componentPath/$headsFolderName";
+
 # Remove existing heads directory to refresh
-Remove-Item -Recurse -Force "$componentPath/$headsFolderName/" -ErrorAction SilentlyContinue;
+Remove-Item -Recurse -Force $outputHeadsDir -ErrorAction SilentlyContinue;
 
 # Intall our heads as a temporary template
 dotnet new --install "$PSScriptRoot/SingleComponent" --force
@@ -58,9 +120,14 @@ dotnet new ct-tooling-heads -n $componentName -o $headsFolderName
 # Remove template, as just for script
 dotnet new --uninstall "$PSScriptRoot/SingleComponent"
 
-
 # Generate Solution
-#------------------
+# ------------------
+
+# Projects to include
+$projects = [System.Collections.ArrayList]::new()
+
+# Include all projects in component folder
+[void]$projects.Add(".\*\*.*proj")
 
 # Install slgnen
 dotnet tool restore
@@ -76,18 +143,35 @@ if (Test-Path -Path $generatedSolutionFilePath)
     Write-Host "Removed previous solution file"
 }
 
-# Projects to include
-$projects = [System.Collections.ArrayList]::new()
-
-# Include all projects in component folder
-[void]$projects.Add(".\**.*proj")
+# Deployable sample gallery heads
+# All heads are included by default since they reside in the same folder as the component.
+# Remove any heads that are not required for the solution.
+# TODO: this handles separate project heads, but won't directly handle the unified Skia head from Uno.
+# Once we have that, just do a transform on the csproj filename inside this loop to decide the same csproj for those separate MultiTargets.
+foreach ($multitarget in $MultiTargets) {
+    # capitalize first letter, avoid case sensitivity issues on linux
+    $csprojFileNamePartForMultiTarget = $multitarget.substring(0,1).ToUpper() + $multitarget.Substring(1).ToLower()
+
+    $path = "$outputHeadsDir\**\*$csprojFileNamePartForMultiTarget.csproj";
+
+    if (Test-Path $path) {
+        # iterate the wildcards caught by $path
+        foreach ($foundItem in Get-ChildItem $path)
+        {
+            $projects = $projects + $foundItem.FullName
+        }
+    }
+    else {
+        Write-Warning "No project head could be found at $path for MultiTarget $multitarget. Skipping."
+    }
+}
 
 # Include common dependencies required for solution to build
-[void]$projects.Add("..\..\tooling\CommunityToolkit.App.Shared\**\*.*proj")
-[void]$projects.Add("..\..\tooling\CommunityToolkit.Tests.Shared\**\*.*proj")
-[void]$projects.Add("..\..\tooling\CommunityToolkit.Tooling.SampleGen\*.csproj")
-[void]$projects.Add("..\..\tooling\CommunityToolkit.Tooling.TestGen\*.csproj")
-[void]$projects.Add("..\..\tooling\CommunityToolkit.Tooling.XamlNamedPropertyRelay\*.csproj")
+$projects = $projects + "..\..\tooling\CommunityToolkit.App.Shared\**\*.*proj"
+$projects = $projects + "..\..\tooling\CommunityToolkit.Tests.Shared\**\*.*proj"
+$projects = $projects + "..\..\tooling\CommunityToolkit.Tooling.SampleGen\*.csproj"
+$projects = $projects + "..\..\tooling\CommunityToolkit.Tooling.TestGen\*.csproj"
+$projects = $projects + "..\..\tooling\CommunityToolkit.Tooling.XamlNamedPropertyRelay\*.csproj"
 
 if ($UseDiagnostics.IsPresent)
 {