public/Undo-Location.ps1
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<#
.SYNOPSIS Undo the previous n changes to the current location or go back to an earlier location matching a given partial path. .PARAMETER n The number of locations to undo. .PARAMETER NamePart Partial path name to choose from undo stack. .EXAMPLE PS C:\Windows\System32> # Move backward to the previous location PS C:\Windows\System32> cd .. PS C:\Windows> Undo-Location # (cd-) PS C:\Windows\System32> _ .EXAMPLE PS C:\Windows\System32> # Move backward to the 2nd last location PS C:\Windows\System32> cd .. PS C:\Windows\> cd .. PS C:\> cd- 2 PS C:\Windows\System32> _ .EXAMPLE PS C:\Windows\System32> # Move backward by name PS C:\Windows\System32> cd .. PS C:\Windows\> cd .. PS C:\> cd- sys PS C:\Windows\System32> _ .LINK Redo-Location Get-Stack #> function Undo-Location { [OutputType([void], [Management.Automation.PathInfo])] [CmdletBinding(DefaultParameterSetName = 'n')] param( [Parameter(ParameterSetName = 'n', Position = 0)] [byte] $n = 1, [Parameter(ParameterSetName = 'named', Position = 0, Mandatory, ValueFromPipeline)] [string] $NamePart, [switch] $PassThru ) if ($PSCmdlet.ParameterSetName -eq 'n' -and $n -ge 1) { 1..$n | % { if ($undoStack.Count) { $redoStack.Push($PWD.Path) $undoStack.Pop() | EscapeWildcards | Set-Location -PassThru:$PassThru -ErrorAction Ignore } } } if ($PSCmdlet.ParameterSetName -eq 'named') { if (($match = GetStackIndex $undoStack.ToArray() $NamePart) -ge 0) { Undo-Location ($match + 1) } else { Write-Error "Could not find '$NamePart' in undo stack." -ErrorAction Stop } } } |