FailGuru.psm1
if ($null -ne $Env:DEBUG_GURU_MODE) { Set-StrictMode -Version Latest } function Get-Line { param( [int] $Width, [char] $Pad, [char] $Border, [string] $Text = "" ) $l = ($Width - $Text.Length - 2) / 2 "$((Get-Fill -Length ([Math]::Floor($l)) -Pad $Pad -Border $Border -Start)+$Text+(Get-Fill -Length ([Math]::Ceiling($l)) -Pad $Pad -Border $Border))" } function Get-Fill { param( [int] $Length, [char] $Pad, [char] $Border, [switch] $Start ) $c = [char[]]::new($Length) for ($i = 0; $i -lt $c.Count; $i++) { $c[$i] = $Pad } if ($Start.IsPresent) { $c[0] = $Border } else { $c[$Length - 1] = $Border } [String]::new($c) } function Get-Rectangle { param( [string] $Message, [string] $GuruAlert, [int] $Width = 89, [char] $Border ) $m = "" if ($Message.Length -gt 0) { $m += "`n$(Get-Line -Pad ' ' -Border $Border -Text $Message -Width $Width)" } @" $(Get-Line -Pad $Border -Border $Border -Width $Width) $(Get-Line -Pad ' ' -Border $Border -Text "Software Failure. Press any key to continue." -Width $Width)$m $(Get-Line -Pad ' ' -Border $Border -Text "Guru Meditation #$($GuruAlert)" -Width $Width) $(Get-Line -Pad $Border -Border $Border -Width $Width) "@ } function Format-GuruAlert { param( [uint32] $GuruCode ) if ($GuruCode -eq 0 -or $GuruCode -gt ([uint32]"0xFFFFFFFF")) { return "00000011.48454C50" } $hexGuru = $GuruCode.ToString("X") while ($hexGuru.Length -lt 8) { $hexGuru = "0$($hexGuru)"} return "00000011.$($hexGuru)" } function Invoke-GuruMeditation { param( [string] $Message, [uint32] $GuruCode = 0, [int] $Width = 89, [switch] $CoverTerminal, [switch] $FullWidth ) $esc = [char]27 $obg = $Host.UI.RawUI.BackgroundColor $ocs = $Host.UI.RawUI.cursorsize $y = $Host.UI.RawUI.CursorPosition.Y if ($null -eq $Env:MinimumGuruFlashes -or !($Env:MinimumGuruFlashes -is [int])) { $MinimumGuruFlashes = 6 } else { $MinimumGuruFlashes = $Env:MinimumGuruFlashes } if ($FullWidth.IsPresent -or $CoverTerminal.IsPresent) { $Width = $Host.UI.RawUI.WindowSize.Width } if ($CoverTerminal.IsPresent) { $cover = "" for ($i = 0; $i -lt $Host.UI.RawUI.WindowSize.Height; $i++) { for ($j = 0; $j -lt $Host.UI.RawUI.WindowSize.Width; $j++) { $cover += "$esc[40m " } $cover += "`n" } $Host.UI.RawUI.BackgroundColor = "black" Write-Host $cover -NoNewline $y = 0 } $start = "$esc[$($y);0H" if ($Width -lt 30) { $Width = $Host.UI.RawUI.WindowSize.Width $Message = "requested width too short for guru." $GuruCode = 0 } if ($Message.Length -gt $Width - 8) { $Message = $Message.Substring(0, $Width - 16) + "..." $GuruCode = 0 } $guruAlert = Format-GuruAlert $GuruCode $Host.UI.RawUI.cursorsize = 0 $s = @( (Get-Rectangle -Message $Message -GuruAlert $guruAlert -Width $Width -Border '#'), (Get-Rectangle -Message $Message -GuruAlert $guruAlert -Width $Width -Border ' ')) $i = 0 do { Write-Host "$start`n$($s[$i%2])`n" -ForegroundColor Red -NoNewline $i++ Start-Sleep -Seconds 1 } while ($i -lt $MinimumGuruFlashes -or !([Console]::KeyAvailable)) $Host.UI.RawUI.cursorsize = $ocs if ($CoverTerminal.IsPresent) { $Host.UI.RawUI.BackgroundColor = $obg } } New-Alias -Name callguru -Value Invoke-GuruMeditation Export-ModuleMember -Function "Invoke-GuruMeditation" -Alias "callguru" |