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function Invoke-External {
<#
.SYNOPSIS
Invokes a non-PowerShell command.
.DESCRIPTION
Runs a non-PowerShell command, and captures its return code.
Throws an exception if the command returns non-zero.
.EXAMPLE
Invoke-External 7z x $MyArchive
#>
if ( $args.Count -eq 0 ) {
throw 'Invoke-External called without arguments.'
}
if ( ! ( Test-Path function:Log-Information ) ) {
. $PSScriptRoot/Logger.ps1
}
$Command = $args[0]
$CommandArgs = @()
if ( $args.Count -gt 1) {
$CommandArgs = $args[1..($args.Count - 1)]
}
$_EAP = $ErrorActionPreference
$ErrorActionPreference = "Continue"
Log-Debug "Invoke-External: ${Command} ${CommandArgs}"
& $command $commandArgs
$Result = $LASTEXITCODE
$ErrorActionPreference = $_EAP
if ( $Result -ne 0 ) {
throw "${Command} ${CommandArgs} exited with non-zero code ${Result}."
}
}
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