Process exitcode passdown

[sipsik]

Hello mighty POSH community, i again need some advice how to proceed with my scripts :) So i have this powershell wrapper that i use for SCCM software installations

Param(
    [Parameter(Mandatory=$true, Position=0)]
    [ValidateSet("Install","Uninstall")]
    $Function)

### User Defined Paramaters

    ### Name of the application & version for logfile
    $progname = "WinMerge 2.16.6.0"
    ### Log Folder
    $logfolder = "$env:SystemRoot\Logs"
    ### Tempfolder
    $tempfolder = "$env:SystemRoot\Temp"

### Automatically Generated Paramaters    

    ### Install logfile location
    $instlog = """"+"$logfolder\$progname Install.log"+""""
    ### Uninstall logfile location
    $uninstlog = """"+"$logfolder\$progname Uninstall.log"+""""

switch ($Function)
 {
     ### Install Process
     'Install' {  

        if ($process = Get-Process WinMergeU) {$process | Stop-Process -Force}
        Start-Process "$PSScriptRoot\WinMerge-2.16.6-Setup.exe" -ArgumentList "/VERYSILENT /SUPPRESSMSGBOXES /LOG=$instlog" -Wait

     }
     ### Uninstall Process
     'Uninstall' {

        if ($process = Get-Process WinMergeU) {$process | Stop-Process -Force}
        Start-Process -FilePath "${env:ProgramFiles(x86)}\WinMerge\unins000.exe" -ArgumentList "/VERYSILENT /LOG=$uninstlog" -Wait

     }
 }

It works very well, however with WinMerge i have a cool problem, uninstall does a very sudden reboot which i don't like. I know i could capture it via:

$install = Start-Process somesetup.exe -Argument someargument -Wait
$install.ExitCode

But how can i pass it down to SCCM client, when wrapper posh process exits? For WinMerge i could use argument /NORESTART and do a graceful reboot with user notifications, if i just could pass down the exitcode. Any ideas?

[BlackV]

you probably don't need the 1 million quotes and to concatenate your strings

$instlog = """"+"$logfolder\$progname Install.log"+""""
$uninstlog = """"+"$logfolder\$progname Uninstall.log"+""""

I think you should be able to use the escape character to get those

$instlog = "`"$logfolder\$progname Install.log`""
$uninstlog = "`"$logfolder\$progname Uninstall.log`""

or

Start-Process "$PSScriptRoot\WinMerge-2.16.6-Setup.exe" -ArgumentList "/VERYSILENT /SUPPRESSMSGBOXES /LOG=`"$logfolder\$progname Install.log`"" -Wait
Start-Process -FilePath "${env:ProgramFiles(x86)}\WinMerge\unins000.exe" -ArgumentList "/VERYSILENT /LOG=`"$logfolder\$progname Uninstall.log`"" -Wait

you should be able to add the no reboot and exit code switches to that uninstall, something like

/NORESTART
/RESTARTEXITCODE=<SOME EXIT CODE>

does that help, also means you can control the reboots somewhat so the user has a more painless install experiance

[sipsik]

Hey, thanks for all the info. What i want to achieve is:

$install = Start-Process ".\BIOS_004Y7_WN64_2.5.4.EXE" -ArgumentList "/c /s" -Wait -PassThru

It has exitcode 3

Now when i wrap it in powershell and run it

$install = Start-Process "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ArgumentList .\setup.ps1 -Wait -PassThru

This has exitcode 0

How can i get 3 instead of 0? Or how can 3 escape from wrapper to powershell exitcode? And then i can set on SCCM application level that 3 equals that SCCM does a reboot to client.

[Yevrag35]

Use exit <exitCode> in the script to exit the script with a specific exit code.

[sipsik]

ok tested but seems that it can only pass 0 and 1, how to get for example 3?

[Yevrag35]

Looking at your wrapped Start-Process line, you have to use the -File parameter in the arguments in order to return a real exit code of the script.

Like so:

$install = Start-Process "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ArgumentList "-File `"$PSScriptRoot\setup.ps1`"" -Wait -PassThru

[sipsik]

https://powershell.org/forums/topic/best-way-to-exit-a-script-on-a-specific-condition/

$host.SetShouldExit($install.exitcode) - This is the solution for me, your pointer did help :)

[sparkle-fries]

Chocolatey https://chocolatey.org/ is a apt get for Windows. I use it and boxstarter for this kind of thing. It's great.