Retry Powershell Cmdlet

readme.md

Usage, waiting for a resource. It will attempt to retry 3 times, with a 5 second delay between each.

Retry -Attemps 3 -Delay 5 {        
    if (-not (Test-Path "$($volume.DriveLetter):\Windows\System32\config")) {
        Throw "The VHDx mounted at $($volume.DriveLetter):\ is not a Windows System volume."
    }
}

Retry.ps1

function Retry {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory=$false)]
        [Alias("Attemps")]
        [int]$maxAttempts = 3,
        
        [Parameter(Mandatory=$false)]
        [Alias("Delay")]
        [int]$secondsBeforeRetrying = 5,
                
        [Parameter(Mandatory=$true)]
        [ScriptBlock]$script
    )

    $attempts = 0
    
    do {
	    try {
		    &$script
		} catch {
            $attempts = $attempts + 1
		    if ($attempts -gt $maxAttempts){
			    Throw
		    }
		    Start-Sleep -Seconds $secondsBeforeRetrying
	    }
    } while ($true)

}