Optimize-VirtualDisk

2025.7.0

Private/ProcessVirtualDiskPath.ps1

                                $Script:DirectoryIterationMessage = "Checking directory '{0}' for any virtual hard disks (with Filter '{1}')."

function ProcessVirtualDiskPath {

    [CmdletBinding(SupportsShouldProcess)]

    param (

        [Parameter(Mandatory, Position = 0, ParameterSetName = "Path")]

        [ValidateNotNullOrEmpty()]

        [string]

        $Path,

        [Parameter(Mandatory, Position = 0, ParameterSetName = "LiteralPath")]

        [ValidateNotNullOrEmpty()]

        [string]

        $LiteralPath,

        [Parameter()]

        [string]

        $Filter

    )

    $directoryFilter = if (![string]::IsNullOrWhiteSpace($Filter)) { $Filter } else { "*.vhdx" }

    if ($PSBoundParameters.ContainsKey("Path")) {

        # ErrorAction SilentlyContinue is used here to not output multiple errors.

        $resolvedPaths = Resolve-Path -Path $Path -ErrorAction SilentlyContinue -ErrorVariable err

        if ($err) {

            Write-Error "Failed to resolve path $Path via Resolve-Path. The error was: $err"

            return

        } elseif (!$resolvedPaths) {

            Write-Warning "No items found after resolving path $Path via Resolve-Path."

            return

        }

        foreach ($resolvedPath in $resolvedPaths) {

            if (!(TestVHDFileValid $resolvedPath)) {

                continue

            }

            $item = Get-Item -LiteralPath $resolvedPath

            if ($null -eq $item) {

                Write-Verbose "Get-Item returned `$null for resolved path $resolvedPath."

                continue

            }

            if ($item -is [System.IO.FileInfo]) {

                if ($PSCmdlet.ShouldProcess($item.FullName, "Optimize-VirtualDisk")) {

                    OptimizeVirtualDisk -FilePath $item.FullName

                }

            } elseif ($item -is [System.IO.DirectoryInfo]) {

                $splat = @{

                    "LiteralPath" = "$resolvedPath"

                    "Filter" = $directoryFilter

                    "File" = $true

                }

                $directoryFiles = Get-ChildItem @splat

                if (!$directoryFiles) {

                    Write-Warning "No files found in resolved path '$resolvedPath' matching filter '$directoryFilter'."

                    continue

                }

                Write-Verbose ($Script:DirectoryIterationMessage -f $resolvedPath,$directoryFilter)

                foreach ($directoryFile in $directoryFiles) {

                    if (!(TestVHDFileValid $directoryFile.FullName)) {

                        continue

                    }

                    if ($PSCmdlet.ShouldProcess($directoryFile.FullName, "Optimize-VirtualDisk")) {

                        OptimizeVirtualDisk -FilePath $directoryFile.FullName

                    }

                }

            } else {

                $convertedResult = "$item"

                Write-Warning "Get-Item returned an unhandled type $($item.GetType()) from the path $resolvedPath. Treating it as a string and hoping for the best (it evaluated to '$convertedResult' as a string)."

                if ($PSCmdlet.ShouldProcess($convertedResult, "Optimize-VirtualDisk")) {

                    OptimizeVirtualDisk -FilePath $convertedResult

                }

            }

        }

    } elseif ($PSBoundParameters.ContainsKey("LiteralPath")) {

        if (!(TestVHDFileValid $LiteralPath)) {

            return

        }

        if (!(Test-Path -LiteralPath $LiteralPath)) {

            Write-Error "Failed to find file from literal path $LiteralPath (Test-Path evaluated to false)."

            return

        }

        $item = Get-Item -LiteralPath $LiteralPath

        if ($null -eq $item) {

            Write-Verbose "Get-Item returned `$null for literal path $LiteralPath."

            return

        }

        if ($item -is [System.IO.FileInfo]) {

            if ($PSCmdlet.ShouldProcess($item.FullName, "Optimize-VirtualDisk")) {

                OptimizeVirtualDisk -FilePath $item.FullName

            }

        } elseif ($item -is [System.IO.DirectoryInfo]) {

            $splat = @{

                "LiteralPath" = $LiteralPath

                "Filter" = $directoryFilter

                "File" = $true

            }

            $directoryFiles = Get-ChildItem @splat

            if (!$directoryFiles) {

                Write-Warning "No files found in literal path '$LiteralPath' matching filter '$directoryFilter'."

                continue

            }

            Write-Verbose ($Script:DirectoryIterationMessage -f $LiteralPath,$directoryFilter)

            foreach ($directoryFile in $directoryFiles) {

                if (!(TestVHDFileValid $directoryFile.FullName)) {

                    continue

                }

                if ($PSCmdlet.ShouldProcess($directoryFile.FullName, "Optimize-VirtualDisk")) {

                    OptimizeVirtualDisk -FilePath $directoryFile.FullName

                }

            }

        } else {

            $convertedResult = "$item"

            Write-Warning "Get-Item returned an unhandled type $($item.GetType()) from the literal path $providedLiteralPath. Treating it as a string and hoping for the best (it evaluated to '$convertedResult' as a string)."

            if ($PSCmdlet.ShouldProcess($convertedResult, "Optimize-VirtualDisk")) {

                OptimizeVirtualDisk -FilePath $convertedResult

            }

        }

    } else {

        # Sanity check.

        Write-Error "Missing both Path and LiteralPath parameters in ProcessVirtualDiskPath! Please report this."

    }

}

# Copyright (c) 2024 AJ Tek Corporation. All Rights Reserved.

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