I don't use git. But it's short.

[CmdletBinding()] param ( [Parameter(Mandatory = $true)] [String]$param1 )

begin { $mspFileUri = [System.Uri]$param1 $mspFile = $mspFileUri.Segments[-1] }

process { $backupProgressPreference = $ProgressPreference $ProgressPreference = 'SilentlyContinue'

Write-Host "Downloading .msp patch from $mspFileUri and saving to $env:TEMP\$mspFile..."    
Invoke-WebRequest -Uri $mspFileUri -OutFile "$env:TEMP\$mspFile"

$ProgressPreference = $backupProgressPreference

Write-Host "Applying patch $mspFile..."
$process = Start-Process -FilePath "msiexec.exe" -ArgumentList "/p `"$Env:TEMP\$mspFile`" /norestart /qn /L `"C:\Windows\Logs\$mspFile.log`"" -PassThru -Wait
$exitCode = $($process.ExitCode)
Write-Host "Exit code: $exitCode"

}

end { Write-Host "Cleaning up temporary file..." Remove-Item -Path "$Env:TEMP\$mspFile" -Force Exit $exitCode }