Core/Private/PathUtilities/Get-NearestExistingParent.ps1
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# src/Private/PathUtilities/Get-NearestExistingParent.ps1 <# .SYNOPSIS Finds the nearest existing parent directory. .DESCRIPTION The Get-NearestExistingParent cmdlet walks up the path hierarchy until it finds a directory that exists on disk. This is used to resolve volume information even when the requested sub-path does not exist. #> function Get-NearestExistingParent { param([string]$Path) if (-not $PSBoundParameters.ContainsKey('Debug') -and $PSCmdlet) { $DebugPreference = $PSCmdlet.GetVariableValue('DebugPreference') } if (-not $PSBoundParameters.ContainsKey('Verbose') -and $PSCmdlet) { $VerbosePreference = $PSCmdlet.GetVariableValue('VerbosePreference') } $current = [System.IO.Path]::GetFullPath($Path) while (-not (Test-Path $current)) { $parent = [System.IO.Directory]::GetParent($current) if ($null -eq $parent) { return $null } $current = $parent.FullName } $current } |