cliHelper.core

0.1.0

Public/Output/Invoke-PathShortener.ps1

function Invoke-PathShortener {
  [CmdletBinding()]
  param (
    # Path to shorten.
    [Parameter(Position = 0, Mandatory = $false , ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
    [ValidateNotNullorEmpty()]
    [string]$Path = $ExecutionContext.SessionState.Path.CurrentLocation.Path,

    # Number of parts to keep before truncating. Default value is 2.
    [Parameter()]
    [ValidateRange(0, [int32]::MaxValue)]
    [int]$KeepBefore = 2,

    # Number of parts to keep after truncating. Default value is 1.
    [Parameter()]
    [ValidateRange(1, [int32]::MaxValue)]
    [int]$KeepAfter = 1,

    # Path separator character.
    [Parameter()]
    [string]$Separator = [System.IO.Path]::DirectorySeparatorChar,

    # Truncate character(s). Default is '...'
    # Use '[char]8230' to use the horizontal ellipsis character instead.
    [Parameter()]
    [string]$TruncateChar = [char]8230
  )
  process {
    $Path = (Resolve-Path -Path $Path).Path
    $splitPath = $Path.Split($Separator, [System.StringSplitOptions]::RemoveEmptyEntries)
    if ($splitPath.Count -gt ($KeepBefore + $KeepAfter)) {
      $outPath = [string]::Empty
      for ($i = 0; $i -lt $KeepBefore; $i++) {
        $outPath += $splitPath[$i] + $Separator
      }
      $outPath += "$($TruncateChar)$($Separator)"
      for ($i = ($splitPath.Count - $KeepAfter); $i -lt $splitPath.Count; $i++) {
        if ($i -eq ($splitPath.Count - 1)) {
          $outPath += $splitPath[$i]
        } else {
          $outPath += $splitPath[$i] + $Separator
        }
      }
    } else {
      $outPath = $splitPath -join $Separator
      if ($splitPath.Count -eq 1) {
        $outPath += $Separator
      }
    }
  }
  End {
    return $outPath
  }
}