Merge pull request #1363 from microsoft/user/jvalesmena/new-build-samples

Consolidate build scripts into a single Build-Samples.ps1

1 files changed, 755 insertions, 0 deletions

diff --git a/Build-Samples.ps1 b/Build-Samples.ps1
new file mode 100644
index 00000000..7eafb54d
--- /dev/null
+++ b/Build-Samples.ps1
@@ -0,0 +1,755 @@
+<#
+.SYNOPSIS
+    Builds driver samples from a sample list file with parallel execution and exclusion support.
+
+.DESCRIPTION
+    This is the main build orchestrator for driver samples. It performs these steps:
+
+    1. Ensures a developer build environment (VS DevShell or EWDK) is active
+    2. Discovers samples via ListAllSamples.ps1 (or uses the -Samples parameter if provided)
+    3. Detects the build environment (GitHub CI, NuGet, EWDK, or WDK) and build number
+    4. Loads exclusions from exclusions.csv (supports wildcard paths)
+    5. Builds all non-excluded sample/configuration/platform combinations in parallel
+    6. Generates CSV and HTML overview reports
+
+    Requires PowerShell 7+ (uses ForEach-Object -Parallel).
+
+
+.PARAMETER Samples
+    Optional array of specific sample names or wildcard patterns to build. Supports
+    wildcards (e.g. 'tools.*', 'audio.*') which are matched against all discovered
+    samples. When omitted, all samples are discovered dynamically via ListAllSamples.ps1.
+
+.PARAMETER Configurations
+    Build configurations (e.g. 'Debug','Release'). Defaults to $env:WDS_Configuration or
+    ('Debug','Release').
+
+.PARAMETER Platforms
+    Build platforms (e.g. 'x64','arm64'). Defaults to $env:WDS_Platform or ('x64','arm64').
+
+.PARAMETER LogFilesDirectory
+    Directory for build log files. Defaults to _logs in the current directory.
+
+.PARAMETER ReportFileName
+    Base name for the report files (without extension). Defaults to $env:WDS_ReportFileName
+    or '_overview'.
+
+.PARAMETER InfOptions
+    Additional InfVerif options (e.g. '/samples', '/msft'). If not provided, determined
+    automatically based on the WDK build number.
+
+.PARAMETER ThrottleLimit
+    Maximum parallel build jobs. Defaults to 5 x logical processors.
+
+.EXAMPLE
+    .\Build-Samples
+
+    Discovers all samples via ListAllSamples.ps1 and builds them with default settings.
+
+.EXAMPLE
+    .\Build-Samples -Samples 'audio.acx.samples.audiocodec.driver','usb.kmdf_fx2' -Configurations 'Debug' -Platforms 'x64'
+
+    Builds specific samples for a single configuration and platform.
+
+.EXAMPLE
+    .\Build-Samples -Samples 'tools.*'
+
+    Builds all samples whose name matches the wildcard pattern 'tools.*'.
+
+.EXAMPLE
+    .\Build-Samples -ThrottleLimit 8
+
+    Discovers all samples and builds them with limited parallelism.
+#>
+
+#Requires -Version 7.0
+
+[CmdletBinding()]
+param(
+    [string[]]$Samples,
+    [string[]]$Configurations = @(if ([string]::IsNullOrEmpty($env:WDS_Configuration)) { ('Debug', 'Release') } else { $env:WDS_Configuration }),
+    [string[]]$Platforms = @(if ([string]::IsNullOrEmpty($env:WDS_Platform)) { ('x64', 'arm64') } else { $env:WDS_Platform }),
+    [string]$LogFilesDirectory = (Join-Path (Get-Location) "_logs"),
+    [string]$ReportFileName = $(if ([string]::IsNullOrEmpty($env:WDS_ReportFileName)) { "_overview" } else { $env:WDS_ReportFileName }),
+    [string]$InfOptions,
+    [int]$ThrottleLimit = 0
+)
+
+# =============================================================================
+#  Helper Functions
+# =============================================================================
+
+function Initialize-DevShell {
+    <#
+    .SYNOPSIS Imports the Visual Studio Developer PowerShell if not already active.
+    #>
+    param([string]$ReturnToDirectory)
+
+    if ($env:VSCMD_VER) {
+        Write-Verbose "VS Developer Shell already active (VSCMD_VER=$env:VSCMD_VER)."
+        return
+    }
+
+    $devShellDll = Resolve-Path "$env:ProgramFiles\Microsoft Visual Studio\*\*\Common7\Tools\Microsoft.VisualStudio.DevShell.dll" `
+        -ErrorAction SilentlyContinue | Select-Object -First 1
+    if (-not $devShellDll) {
+        Write-Error "Visual Studio Developer Shell module not found."
+        exit 1
+    }
+
+    Import-Module $devShellDll.Path
+    $vsInstall = Resolve-Path "$env:ProgramFiles\Microsoft Visual Studio\*\*" | Select-Object -First 1
+    Enter-VsDevShell -VsInstallPath $vsInstall.Path
+    Set-Location $ReturnToDirectory
+}
+
+function Assert-MsBuildAvailable {
+    <#
+    .SYNOPSIS Verifies msbuild.exe is on PATH. Exits with error if not found.
+    #>
+    $savedPref = $ErrorActionPreference
+    $ErrorActionPreference = 'Stop'
+    try {
+        Get-Command 'msbuild' | Out-Null
+    }
+    catch {
+        Write-Error "msbuild cannot be called from current environment. Ensure it is on PATH (run from VS Developer Command Prompt or EWDK)."
+        exit 1
+    }
+    finally {
+        $ErrorActionPreference = $savedPref
+    }
+}
+
+function Resolve-BuildEnvironment {
+    <#
+    .SYNOPSIS
+        Detects the active build environment and returns metadata.
+    .DESCRIPTION
+        Checks (in priority order) for GitHub CI, local NuGet packages, EWDK, or WDK.
+        Returns a hashtable: Name, BuildNumber (int), NuGetVersion, WdkVsComponentVersion.
+    #>
+    param([string]$RepoRoot)
+
+    $result = @{
+        Name                  = ''
+        BuildNumber           = [int]0
+        NuGetVersion          = ''
+        WdkVsComponentVersion = ''
+    }
+
+    if ($env:GITHUB_REPOSITORY) {
+        $result.Name = 'GitHub'
+        $wdkPackage = Get-ChildItem "$RepoRoot\packages\*WDK.x64*" -Name -ErrorAction SilentlyContinue
+        $result.NuGetVersion = ([regex]'(?<=x64\.)(\d+\.){3}\d+').Match($wdkPackage).Value
+        $result.BuildNumber = [int]($result.NuGetVersion.Split('.')[2])
+    }
+    elseif (Test-Path "$RepoRoot\packages\*") {
+        $result.Name = 'NuGet'
+        $wdkPackage = Get-ChildItem "$RepoRoot\packages\*WDK.x64*" -Name -ErrorAction SilentlyContinue
+        $result.NuGetVersion = ([regex]'(?<=x64\.)(\d+\.){3}\d+').Match($wdkPackage).Value
+        $result.BuildNumber = [int]($result.NuGetVersion.Split('.')[2])
+    }
+    elseif ($env:BuildLab -match '^(?<branch>[^.]+)\.(?<build>\d+)\.(?<qfe>[^.]+)$') {
+        $result.Name = "EWDK.$($Matches.branch).$($Matches.build).$($Matches.qfe)"
+        $result.BuildNumber = [int]$Matches.build
+    }
+    elseif ($env:UCRTVersion -match '10\.0\.(?<build>\d+)\.0') {
+        $result.Name = 'WDK'
+        $result.BuildNumber = [int]$Matches.build
+    }
+    else {
+        Write-Output "Environment variables {"
+        Get-ChildItem env:* | Sort-Object Name
+        Write-Output "Environment variables }"
+        Write-Error "Could not determine build environment. Ensure EWDK, WDK, or NuGet packages are configured."
+        exit 1
+    }
+
+    # WDK VS component version (EWDK does not ship this metadata)
+    if ($result.Name -match '^EWDK') {
+        $result.WdkVsComponentVersion = '(not available for EWDK builds)'
+    }
+    else {
+        $vsComponent = Get-ChildItem "${env:ProgramData}\Microsoft\VisualStudio\Packages\Microsoft.Windows.DriverKit,version=*" -ErrorAction SilentlyContinue
+        if (-not $vsComponent) {
+            Write-Error "WDK Visual Studio Component not found. Ensure the WDK Component is installed."
+            exit 1
+        }
+        $result.WdkVsComponentVersion = [regex]::Match($vsComponent.Name, '(\d+\.){3}\d+').Value
+    }
+
+    return $result
+}
+
+function Import-SampleExclusions {
+    <#
+    .SYNOPSIS
+        Loads exclusions.csv and returns exclusion objects applicable to the current build.
+    .DESCRIPTION
+        Each returned exclusion has:
+          - Pattern:        dot-separated path (may contain wildcards, e.g. 'general.*')
+          - Configurations: semicolon-separated config|platform patterns (or '*' for all)
+          - Reason:         human-readable explanation
+
+        Only exclusions whose [MinBuild, MaxBuild] range includes the given build number
+        are returned. Exclusions outside the range are silently skipped.
+    .NOTES
+        CSV format:  Path,Configurations,MinBuild,MaxBuild,Reason
+        Example row: network\wlan\wdi,*,,27100,"failure introduced in VS17.14"
+    #>
+    param(
+        [string]$CsvPath,
+        [int]$BuildNumber
+    )
+
+    if (-not (Test-Path $CsvPath)) {
+        Write-Warning "Exclusions file not found: $CsvPath. No exclusions will be applied."
+        return @()
+    }
+
+    $exclusions = [System.Collections.ArrayList]::new()
+    Import-Csv $CsvPath | ForEach-Object {
+        $pattern  = $_.Path.Trim('\').Replace('\', '.').ToLower()
+        $configs  = if ([string]::IsNullOrWhiteSpace($_.Configurations)) { '*' } else { $_.Configurations }
+        $minBuild = if ([string]::IsNullOrWhiteSpace($_.MinBuild)) { 0 }     else { [int]$_.MinBuild }
+        $maxBuild = if ([string]::IsNullOrWhiteSpace($_.MaxBuild)) { 99999 } else { [int]$_.MaxBuild }
+
+        if ($minBuild -le $BuildNumber -and $BuildNumber -le $maxBuild) {
+            [void]$exclusions.Add([PSCustomObject]@{
+                Pattern        = $pattern
+                Configurations = $configs
+                Reason         = $_.Reason
+            })
+            Write-Verbose "Exclusion applied: '$pattern' configs='$configs' reason='$($_.Reason)'"
+        }
+        else {
+            Write-Verbose "Exclusion skipped: '$pattern' - build $BuildNumber outside [$minBuild, $maxBuild]"
+        }
+    }
+
+    return $exclusions.ToArray()
+}
+
+function Get-DiskFreeGB {
+    <#
+    .SYNOPSIS Returns free disk space in GB for the current drive, or 'N/A' on error.
+    #>
+    try {
+        return [math]::Round((Get-Volume (Get-Item '.').PSDrive.Name).SizeRemaining / 1GB, 1)
+    }
+    catch {
+        return 'N/A'
+    }
+}
+
+function Build-SingleSample {
+    <#
+    .SYNOPSIS
+        Builds a single sample directory for one configuration/platform combination.
+    .DESCRIPTION
+        Locates the .sln in the given directory, verifies the configuration|platform is
+        supported, then invokes msbuild with up to 3 attempts (to detect sporadic failures).
+    .OUTPUTS
+        Returns an integer exit code:
+          0 = succeeded on first attempt
+          1 = failed after all retries
+          2 = sporadic (failed first, succeeded on retry)
+          3 = unsupported configuration/platform
+    #>
+    param(
+        [string]$Directory,
+        [string]$SampleName,
+        [string]$Configuration = 'Debug',
+        [string]$Platform = 'x64',
+        [string]$InfVerif_AdditionalOptions = '/samples',
+        [string]$LogFilesDirectory = (Get-Location),
+        [bool]$Verbose = $false
+    )
+
+    if (-not (Test-Path -Path $Directory -PathType Container)) {
+        Write-Warning "`u{274C} A valid directory could not be found under $Directory"
+        return 1
+    }
+
+    New-Item -ItemType Directory -Force -Path $LogFilesDirectory | Out-Null
+
+    if ([string]::IsNullOrWhiteSpace($SampleName)) {
+        $SampleName = (Resolve-Path $Directory).Path.Replace((Get-Location), '').Replace('\', '.').Trim('.').ToLower()
+    }
+
+    $solutionFile = Get-ChildItem -Path $Directory -Filter *.sln |
+                    Select-Object -ExpandProperty FullName -First 1
+
+    if ($null -eq $solutionFile) {
+        Write-Warning "`u{274C} A solution could not be found under $Directory"
+        return 1
+    }
+
+    # --- Check whether the solution supports the requested configuration|platform ---
+    $configurationIsSupported = $false
+    $inSolutionConfigurationPlatformsSection = $false
+    foreach ($line in Get-Content -Path $solutionFile) {
+        if (-not $inSolutionConfigurationPlatformsSection -and
+            $line -match '\s*GlobalSection\(SolutionConfigurationPlatforms\).*') {
+            $inSolutionConfigurationPlatformsSection = $true
+            continue
+        }
+        elseif ($line -match '\s*EndGlobalSection.*') {
+            $inSolutionConfigurationPlatformsSection = $false
+            continue
+        }
+
+        if ($inSolutionConfigurationPlatformsSection) {
+            [regex]$regex = '.*=\s*(?<ConfigString>(?<Configuration>.*)\|(?<Platform>.*))\s*'
+            $match = $regex.Match($line)
+            if ([string]::IsNullOrWhiteSpace($match.Groups['ConfigString'].Value) -or
+                [string]::IsNullOrWhiteSpace($match.Groups['Platform'].Value)) {
+                Write-Warning "Could not parse configuration entry $line from file $solutionFile."
+                continue
+            }
+            if ($match.Groups['Configuration'].Value.Trim() -eq $Configuration -and
+                $match.Groups['Platform'].Value.Trim() -eq $Platform) {
+                $configurationIsSupported = $true
+            }
+        }
+    }
+
+    if (-not $configurationIsSupported) {
+        Write-Verbose "[$SampleName] `u{23E9} Skipped. Configuration $Configuration|$Platform not supported."
+        return 3
+    }
+
+    Write-Verbose "Building Sample: $SampleName; Configuration: $Configuration; Platform: $Platform {"
+
+    $myexit = 1
+
+    # Build up to three times (0th, 1st, and 2nd attempt).
+    #   Succeed on 1st  -> success (0)
+    #   Fail 1st, succeed on retry -> sporadic (2)
+    #   Fail all three  -> failure (1)
+    for ($i = 0; $i -lt 3; $i++) {
+        $binLogFilePath   = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.binlog"
+        $errorLogFilePath = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.err"
+        $warnLogFilePath  = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.wrn"
+        $outLogFilePath   = "$LogFilesDirectory\$SampleName.$Configuration.$Platform.$i.out"
+
+        msbuild $solutionFile `
+            -clp:Verbosity=m -t:rebuild `
+            -property:Configuration=$Configuration `
+            -property:Platform=$Platform `
+            -p:TargetVersion=Windows10 `
+            -p:InfVerif_AdditionalOptions="$InfVerif_AdditionalOptions" `
+            -warnaserror `
+            -binaryLogger:LogFile=$binLogFilePath`;ProjectImports=None `
+            -flp1:errorsonly`;logfile=$errorLogFilePath `
+            -flp2:WarningsOnly`;logfile=$warnLogFilePath `
+            -noLogo > $outLogFilePath
+
+        if ($null -ne $env:WDS_WipeOutputs) {
+            Write-Verbose ("WipeOutputs: $Directory " + (((Get-Volume (Get-Item '.').PSDrive.Name).SizeRemaining / 1GB)))
+            Get-ChildItem -Path $Directory -Recurse -Include x64   | Remove-Item -Recurse
+            Get-ChildItem -Path $Directory -Recurse -Include arm64 | Remove-Item -Recurse
+        }
+
+        if ($LASTEXITCODE -eq 0) {
+            $myexit = if ($i -eq 0) { 0 } else { 2 }
+            # Remove binlog on success to save space; keep otherwise to diagnose issues.
+            Remove-Item $binLogFilePath
+            break
+        }
+        else {
+            Start-Sleep 1
+            if ($Verbose) {
+                Write-Warning "`u{274C} Build failed. Retrying to see if sporadic..."
+            }
+        }
+    }
+
+    if ($myexit -eq 1 -and $Verbose) {
+        Write-Warning "`u{274C} Build failed. Log available at $errorLogFilePath"
+    }
+    if ($myexit -eq 2 -and $Verbose) {
+        Write-Warning "`u{274C} Build sporadically failed. Log available at $errorLogFilePath"
+    }
+
+    Write-Verbose "Building Sample: $SampleName; Configuration: $Configuration; Platform: $Platform }"
+
+    return $myexit
+}
+
+# =============================================================================
+#  Step 1 - Prepare Build Environment
+# =============================================================================
+
+$root = (Get-Location).Path
+
+Initialize-DevShell -ReturnToDirectory $root
+Assert-MsBuildAvailable
+
+# =============================================================================
+#  Step 2 - Calculate Parallelism
+# =============================================================================
+
+$throttleFactor    = 5
+# Sum across all CPU sockets (Get-CimInstance returns an array on multi-socket systems)
+$logicalProcessors = ((Get-CimInstance -Class CIM_Processor -Verbose:$false).NumberOfLogicalProcessors | Measure-Object -Sum).Sum
+
+if ($ThrottleLimit -eq 0) {
+    $ThrottleLimit = $throttleFactor * $logicalProcessors
+}
+
+$verbose = $PSBoundParameters.ContainsKey('Verbose') -and $PSBoundParameters['Verbose']
+
+# =============================================================================
+#  Step 3 - Prepare Log Directory
+# =============================================================================
+
+Remove-Item -Recurse -Path $LogFilesDirectory -ErrorAction SilentlyContinue
+New-Item -ItemType Directory -Force -Path $LogFilesDirectory | Out-Null
+
+$reportHtmlPath = Join-Path $LogFilesDirectory "$ReportFileName.htm"
+$reportCsvPath  = Join-Path $LogFilesDirectory "$ReportFileName.csv"
+
+# =============================================================================
+#  Step 4 - Load Sample List
+# =============================================================================
+
+# Always discover the full sample list when patterns contain wildcards,
+# or when no -Samples were provided at all.
+$hasWildcards = $Samples | Where-Object { $_ -match '[*?]' }
+
+if (-not $Samples) {
+    # No filter: discover and build everything.
+    Write-Verbose "No -Samples provided. Discovering samples via ListAllSamples.ps1..."
+    $sampleNames = & (Join-Path $PSScriptRoot 'ListAllSamples.ps1') -Verbose:$verbose |
+                   Where-Object { -not [string]::IsNullOrWhiteSpace($_) }
+}
+elseif ($hasWildcards) {
+    # One or more entries contain wildcards — discover all, then filter with -like.
+    Write-Verbose "Wildcard detected in -Samples. Discovering all samples to match patterns..."
+    $allSamples = & (Join-Path $PSScriptRoot 'ListAllSamples.ps1') -Verbose:$verbose |
+                  Where-Object { -not [string]::IsNullOrWhiteSpace($_) }
+    $sampleNames = @()
+    foreach ($pattern in $Samples) {
+        $matched = $allSamples | Where-Object { $_ -like $pattern }
+        if ($matched) {
+            $sampleNames += $matched
+        }
+        else {
+            Write-Warning "Pattern '$pattern' did not match any samples."
+        }
+    }
+    $sampleNames = $sampleNames | Sort-Object -Unique
+}
+else {
+    # Exact list passed by the caller — use as-is, sorted alphabetically.
+    $sampleNames = $Samples | Sort-Object
+}
+
+# Map sample names to directory paths, validating each exists
+$sampleSet = [ordered]@{}
+$skippedCount = 0
+foreach ($name in $sampleNames) {
+    $fullPath = Join-Path $root ($name.Replace('.', '\'))
+    if (Test-Path $fullPath -PathType Container) {
+        $sampleSet[$name] = $fullPath
+    }
+    else {
+        Write-Warning "Sample directory not found, skipping: $name"
+        $skippedCount++
+    }
+}
+
+if ($sampleSet.Count -eq 0) {
+    Write-Error "No valid sample directories found. Ensure ListAllSamples.ps1 is available in the repo root."
+    exit 1
+}
+
+# =============================================================================
+#  Step 5 - Detect Build Environment
+# =============================================================================
+
+$buildEnv    = Resolve-BuildEnvironment -RepoRoot $root
+$buildNumber = $buildEnv.BuildNumber
+
+# =============================================================================
+#  Step 6 - Determine InfVerif Options
+# =============================================================================
+#
+# Samples must build cleanly, but certain InfVerif warnings are acceptable because
+# they flag issues intentionally present in samples (to be fixed when productizing).
+#   <= 22621: suppress individual warnings  /sw1284 /sw1285 /sw1293 /sw2083 /sw2086
+#   >  22621: these are grouped under       /samples
+#
+if ($InfOptions) {
+    $infVerifOptions = $InfOptions
+}
+else {
+    $infVerifOptions = if ($buildNumber -le 22621) { '/sw1284 /sw1285 /sw1293 /sw2083 /sw2086' } else { '/samples' }
+}
+
+# =============================================================================
+#  Step 7 - Load Exclusions
+# =============================================================================
+
+$exclusions = Import-SampleExclusions -CsvPath (Join-Path $root 'exclusions.csv') -BuildNumber $buildNumber
+
+# =============================================================================
+#  Step 8 - Print Build Plan
+# =============================================================================
+
+$combinationsTotal = $sampleSet.Count * $Configurations.Count * $Platforms.Count
+
+Write-Output ""
+Write-Output "--- WDK Sample Build Plan ------------------------------------------"
+Write-Output "  Environment:      $($buildEnv.Name)"
+Write-Output "  Build Number:     $buildNumber"
+if ($buildEnv.NuGetVersion) {
+    Write-Output "  NuGet Version:    $($buildEnv.NuGetVersion)"
+}
+Write-Output "  WDK VS Component: $($buildEnv.WdkVsComponentVersion)"
+Write-Output "  InfVerif Options: $infVerifOptions"
+Write-Output ""
+Write-Output "  Samples:          $($sampleSet.Count) ($skippedCount skipped)"
+Write-Output "  Configurations:   $($Configurations -join ', ')"
+Write-Output "  Platforms:        $($Platforms -join ', ')"
+Write-Output "  Combinations:     $combinationsTotal"
+Write-Output "  Exclusions:       $($exclusions.Count)"
+Write-Output ""
+Write-Output "  Parallelism:      $ThrottleLimit jobs ($logicalProcessors cores x $throttleFactor)"
+Write-Output "  Disk Free (GB):   $(Get-DiskFreeGB)"
+Write-Output "  Wipe Outputs:     $(-not [string]::IsNullOrEmpty($env:WDS_WipeOutputs))"
+Write-Output "--------------------------------------------------------------------"
+Write-Output ""
+Write-Output "Progress legend:"
+Write-Output "  T=Total  B=Built  R=Running  P=Pending"
+Write-Output "  S=Succeeded  E=Excluded  U=Unsupported  F=Failed  O=Sporadic"
+Write-Output ""
+Write-Output "Building all combinations..."
+
+# =============================================================================
+#  Step 9 - Execute Parallel Builds
+# =============================================================================
+
+# Shared mutable state protected by a Mutex. This is required because
+# ForEach-Object -Parallel runs each iteration in a separate runspace,
+# so standard .NET locks (Monitor/lock) do not work across runspaces.
+$buildState = @{
+    Built       = 0
+    Succeeded   = 0
+    Excluded    = 0
+    Unsupported = 0
+    Failed      = 0
+    Sporadic    = 0
+    Results     = @()
+    FailSet     = @()
+    SporadicSet = @()
+    Lock        = [System.Threading.Mutex]::new($false)
+}
+
+$stopwatch = [Diagnostics.Stopwatch]::StartNew()
+
+# Capture function definition so it can be reconstructed inside each parallel runspace.
+$buildSingleSampleDef = ${function:Build-SingleSample}.ToString()
+
+$sampleSet.GetEnumerator() | ForEach-Object -ThrottleLimit $ThrottleLimit -Parallel {
+    # --- Import shared state from parent scope ---
+    $logDir     = $using:LogFilesDirectory
+    $exclusions = $using:exclusions
+    $configs    = $using:Configurations
+    $platforms  = $using:Platforms
+    $infOpts    = $using:infVerifOptions
+    $isVerbose  = $using:verbose
+    $state      = $using:buildState
+    $total      = $using:combinationsTotal
+    $throttle   = $using:ThrottleLimit
+
+    # Reconstruct the function inside this parallel runspace
+    ${function:Build-SingleSample} = $using:buildSingleSampleDef
+
+    $sampleName = $_.Key
+    $directory  = $_.Value
+
+    # Build a result row: one column per configuration|platform combination
+    $resultRow = [PSCustomObject]@{ Sample = $sampleName }
+
+    foreach ($configuration in $configs) {
+        foreach ($platform in $platforms) {
+            $result           = 'Not run'
+            $succeededDelta   = 0
+            $excludedDelta    = 0
+            $unsupportedDelta = 0
+            $failedDelta      = 0
+            $sporadicDelta    = 0
+            $failEntry        = $null
+            $sporadicEntry    = $null
+
+            # -- Check exclusions (supports wildcard paths like 'general.*') --
+            $exclusionReason = $null
+            foreach ($excl in $exclusions) {
+                if ($sampleName -like $excl.Pattern) {
+                    $configKey = "$configuration|$platform"
+                    foreach ($cfgPattern in $excl.Configurations.Split(';')) {
+                        if ($configKey -like $cfgPattern) {
+                            $exclusionReason = $excl.Reason
+                            break
+                        }
+                    }
+                    if ($exclusionReason) { break }
+                }
+            }
+
+            if ($exclusionReason) {
+                Write-Verbose "[$sampleName $configuration|$platform] Excluded: $exclusionReason"
+                $excludedDelta = 1
+                $result = 'Excluded'
+            }
+            else {
+                # -- Build the sample --
+                $buildResult = Build-SingleSample `
+                    -Directory $directory -SampleName $sampleName `
+                    -LogFilesDirectory $logDir -Configuration $configuration `
+                    -Platform $platform -InfVerif_AdditionalOptions $infOpts `
+                    -Verbose:$isVerbose
+
+                # Return codes from Build-SingleSample:
+                #   0 = succeeded on first attempt
+                #   1 = failed after all retries
+                #   2 = sporadic (failed first, succeeded on retry)
+                #   3 = unsupported configuration/platform
+                switch ($buildResult) {
+                    0       { $succeededDelta   = 1; $result = 'Succeeded' }
+                    1       { $failedDelta      = 1; $result = 'Failed';      $failEntry     = "$sampleName $configuration|$platform" }
+                    2       { $sporadicDelta    = 1; $result = 'Sporadic';    $sporadicEntry = "$sampleName $configuration|$platform" }
+                    default { $unsupportedDelta = 1; $result = 'Unsupported' }
+                }
+            }
+
+            $resultRow | Add-Member -MemberType NoteProperty -Name "$configuration|$platform" -Value $result
+
+            # -- Update shared counters (under lock) --
+            $null = $state.Lock.WaitOne()
+            try {
+                $state.Built       += 1
+                $state.Succeeded   += $succeededDelta
+                $state.Excluded    += $excludedDelta
+                $state.Unsupported += $unsupportedDelta
+                $state.Failed      += $failedDelta
+                $state.Sporadic    += $sporadicDelta
+                if ($failEntry)     { $state.FailSet     += $failEntry }
+                if ($sporadicEntry) { $state.SporadicSet += $sporadicEntry }
+
+                # Update progress bar
+                $built     = $state.Built
+                $remaining = $total - $built
+                $running   = [Math]::Min($remaining, $throttle)
+                $pending   = [Math]::Max($remaining - $throttle, 0)
+                $pct       = [Math]::Round(100 * $built / $total)
+
+                $statusLine = "$built of $total combinations built ($pct%) | " +
+                    "T:$total; B:$built; R:$running; P:$pending | " +
+                    "S:$($state.Succeeded); E:$($state.Excluded); U:$($state.Unsupported); F:$($state.Failed); O:$($state.Sporadic)"
+
+                # Write-Host with carriage return for a single-line progress indicator.
+                # Write-Progress does not reliably render from -Parallel runspaces.
+                Write-Host "`rBuilding combinations [$statusLine]" -NoNewline
+            }
+            finally {
+                $state.Lock.ReleaseMutex()
+            }
+        }
+    }
+
+    # Append the completed result row
+    $null = $state.Lock.WaitOne()
+    try {
+        $state.Results += $resultRow
+    }
+    finally {
+        $state.Lock.ReleaseMutex()
+    }
+}
+
+$stopwatch.Stop()
+
+# End the progress line
+Write-Host ""
+
+# =============================================================================
+#  Step 10 - Report Failures
+# =============================================================================
+
+Write-Output ""
+
+if ($buildState.FailSet.Count -gt 0) {
+    Write-Output "--- Build Failures -------------------------------------------------"
+    foreach ($entry in ($buildState.FailSet | Sort-Object)) {
+        if ($entry -match '^(?<name>.*)\s+(?<config>\w+)\|(?<platform>\w+)$') {
+            $errLog = Join-Path $LogFilesDirectory "$($Matches.name).$($Matches.config).$($Matches.platform).0.err"
+            Write-Output "  [FAIL] $($Matches.name) ($($Matches.config)|$($Matches.platform)):"
+            if (Test-Path $errLog) {
+                Get-Content $errLog | ForEach-Object { Write-Output "     $_" }
+            }
+            else {
+                Write-Output "     (error log not found: $errLog)"
+            }
+        }
+    }
+    Write-Output ""
+    Write-Error "Some combinations were built with errors."
+}
+
+if ($buildState.SporadicSet.Count -gt 0) {
+    Write-Output "--- Sporadic Failures (succeeded on retry) -------------------------"
+    foreach ($entry in ($buildState.SporadicSet | Sort-Object)) {
+        if ($entry -match '^(?<name>.*)\s+(?<config>\w+)\|(?<platform>\w+)$') {
+            $errLog = Join-Path $LogFilesDirectory "$($Matches.name).$($Matches.config).$($Matches.platform).0.err"
+            Write-Output "  [SPORADIC] $($Matches.name) ($($Matches.config)|$($Matches.platform)):"
+            if (Test-Path $errLog) {
+                Get-Content $errLog | ForEach-Object { Write-Output "     $_" }
+            }
+        }
+    }
+    Write-Output ""
+    Write-Error "Some combinations had sporadic build failures."
+}
+
+# =============================================================================
+#  Step 11 - Final Summary
+# =============================================================================
+
+$elapsed = $stopwatch.Elapsed
+
+Write-Output "--- Build Complete -------------------------------------------------"
+Write-Output "  Elapsed:          $($elapsed.Minutes)m $($elapsed.Seconds)s"
+Write-Output "  Disk Free (GB):   $(Get-DiskFreeGB)"
+Write-Output ""
+Write-Output "  Samples:          $($sampleSet.Count)"
+Write-Output "  Configurations:   $($Configurations -join ', ')"
+Write-Output "  Platforms:        $($Platforms -join ', ')"
+Write-Output "  Combinations:     $combinationsTotal"
+Write-Output ""
+Write-Output "  Succeeded:        $($buildState.Succeeded)"
+Write-Output "  Excluded:         $($buildState.Excluded)"
+Write-Output "  Unsupported:      $($buildState.Unsupported)"
+Write-Output "  Failed:           $($buildState.Failed)"
+Write-Output "  Sporadic:         $($buildState.Sporadic)"
+Write-Output ""
+Write-Output "  Log directory:    $LogFilesDirectory"
+Write-Output "  CSV report:       $reportCsvPath"
+Write-Output "  HTML report:      $reportHtmlPath"
+Write-Output "--------------------------------------------------------------------"
+
+# =============================================================================
+#  Step 12 - Generate Reports
+# =============================================================================
+
+$sortedResults = $buildState.Results | Sort-Object { $_.Sample }
+$sortedResults | ConvertTo-Csv  | Out-File $reportCsvPath
+$sortedResults | ConvertTo-Html -Title "WDK Sample Build Overview" | Out-File $reportHtmlPath
+
+# Only open the HTML report interactively (not in CI/automation)
+if (-not $env:GITHUB_REPOSITORY -and -not $env:BUILD_BUILDID -and [Environment]::UserInteractive) {
+    Invoke-Item $reportHtmlPath
+}