# encoding: ascii
# api: powershell
# title: Invoke-CmdScript.ps1
# description: From Windows PowerShell Cookbook (O’Reilly) by Lee Holmes
# version: 0.1
# type: script
# author: Lee Holmes
# license: CC0
# x-poshcode-id: 2176
# x-archived: 2017-05-15T14:29:32
# x-published: 2011-09-09T21:41:00
#
#
##############################################################################
##
## Invoke-CmdScript
##
## From Windows PowerShell Cookbook (O'Reilly)
## by Lee Holmes (http://www.leeholmes.com/guide)
##
##############################################################################
<#
.SYNOPSIS
Invoke the specified batch file (and parameters), but also propigate any
environment variable changes back to the PowerShell environment that
called it.
.EXAMPLE
PS >type foo-that-sets-the-FOO-env-variable.cmd
@set FOO=%*
echo FOO set to %FOO%.
PS >$env:FOO
PS >Invoke-CmdScript "foo-that-sets-the-FOO-env-variable.cmd" Test
C:\Temp>echo FOO set to Test.
FOO set to Test.
PS > $env:FOO
Test
#>
param(
## The path to the script to run
[Parameter(Mandatory = $true)]
[string] $Path,
## The arguments to the script
[string] $ArgumentList
)
Set-StrictMode -Version Latest
$tempFile = [IO.Path]::GetTempFileName()
## Store the output of cmd.exe. We also ask cmd.exe to output
## the environment table after the batch file completes
cmd /c " `"$Path`" $argumentList && set > `"$tempFile`" "
## Go through the environment variables in the temp file.
## For each of them, set the variable in our local environment.
Get-Content $tempFile | Foreach-Object {
if($_ -match "^(.*?)=(.*)$")
{
Set-Content "env:\$($matches[1])" $matches[2]
}
}
Remove-Item $tempFile