scripts/Cmd-Shell.ps1
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function Cmd-Shell { [CmdletBinding()] param( [Parameter(Position=0, Mandatory=$false, ValueFromPipeline=$true)] [string]$cmd = "echo do_nothing", [Parameter(Position=1, Mandatory=$false)] [int]$retries = 1, [Parameter(Position=2, Mandatory=$false)] [string]$errorMessage = $null, [Parameter(Position=3, Mandatory=$false)] [bool]$throwOnError = $true ) process { $ErrorActionPreference = "Continue" if (-not $errorMessage) { $errorMessage = "cmd-shell: '$cmd' failed." } $lastErr = $null; ${log-Err} = @(); ${log-Out} = @() if (${is-Windows}) { Write-Host "cmd: $cmd" & cmd /c $cmd *>&1 -ErrorVariable log-Err | Tee-Object -Variable log-Out } else { Write-Host "bash: $cmd" & bash -c $cmd *>&1 -ErrorVariable log-Err | Tee-Object -Variable log-Out } if ($LASTEXITCODE -ne 0) { if ($retries -gt 1) { $cmd | Cmd-Shell -errorMessage $errorMessage -retries ($retries - 1) -throwOnError $throwOnError } elseif ($throwOnError) { $lastErr = (${log-Err} + ${log-Out}) | Where-Object {$_ -is [System.Management.Automation.ErrorRecord]} | Select-Object -Last 1 if ($lastErr) { $errorMessage = $lastErr.Exception.Message } throw $errorMessage } } } } |