Functions/Retry-SdtCommand.ps1
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function Retry-SdtCommand { [CmdletBinding()] Param( [Parameter(Position=0, Mandatory=$true)] [scriptblock]$ScriptBlock, [Parameter(Position=1, Mandatory=$false)] [int]$Maximum = 5, [Parameter(Position=2, Mandatory=$false)] [int]$Delay = 5000 ) Begin { $cnt = 0 } Process { do { $cnt++ try { $ScriptBlock.Invoke() return } catch { $formatstring = "{0} : {1}`n{2}`n" + " + CategoryInfo : {3}`n" + " + FullyQualifiedErrorId : {4}`n" $fields = $_.InvocationInfo.MyCommand.Name, $_.ErrorDetails.Message, $_.InvocationInfo.PositionMessage, $_.CategoryInfo.ToString(), $_.FullyQualifiedErrorId $returnMessage = $formatstring -f $fields; $returnMessage = "Retry-SdtCommand failed for ScriptBlock => `n$ScriptBlock`n" + $returnMessage; Start-Sleep -Milliseconds $Delay } } while ($cnt -lt $Maximum) # Throw an error after $Maximum unsuccessful invocations. Doesn't need # a condition, since the function returns upon successful invocation. throw $returnMessage } <# .SYNOPSIS This function can be used to execute same code for specified number of times .DESCRIPTION This function helps to retry an action a number of times by executing same code inside try/catch. .PARAMETER ScriptBlock Scripblock to execute for multiple times .PARAMETER Maximum Number of retries to perform .PARAMETER Delay Time of pause between each retry .EXAMPLE Retry-SdtCommand -ScriptBlock { # do something } .EXAMPLE Retry-SdtCommand -ScriptBlock { # do something } -Maximum 10 .LINK https://stackoverflow.com/a/45472343/4449743 #> } |