TFS Build Agent - Update Visual Studio 2019 Installation

UpdateVisualStudio2019.ps1

# This script queries the default agent pool, gets all agents in that pool 
# and executes setup.exe (Visual Studio Installer) and begins a silent update of Visual Studio 2019
# For TFS 2018

# Get all pools
$pools = Invoke-RestMethod -UseDefaultCredentials -Method Get -Uri "https://tfs.com/tfs/_apis/distributedtask/pools" -UseBasicParsing

# Find the ID of the pool we want
$id = $pools.value | Where-Object { $_.name -eq "Default" } | Select-Object -ExpandProperty id -Unique 

$agents = Invoke-RestMethod -UseDefaultCredentials -Method Get -Uri "https://tfs.com/tfs/_apis/distributedtask/pools/$id/agents?includeCapabilities=false&includeAssignedRequest=true"
$hosts = $agents.value | Select-Object -ExpandProperty name | % { $_.Split('_')[0] }

foreach ($hostComputer in $hosts) {
    Invoke-Command -ComputerName $hostComputer -ScriptBlock {

    
function Start-Process($filePath, $argumentList) {
    Write-information "Starting $filePath $argumentList"

    $psi = [System.Diagnostics.ProcessStartInfo]::new()
    $psi.CreateNoWindow = $true
    $psi.UseShellExecute = $false
    $psi.RedirectStandardOutput = $true
    $psi.RedirectStandardError = $true
    $psi.FileName = $filePath
    $psi.Arguments = $argumentList
            
    $process = [System.Diagnostics.Process]::new()

    # Adding event handers for stdout and stderr.
    $scripBlock = {
        if (![String]::IsNullOrEmpty($EventArgs.Data))
        {
            Write-Host $EventArgs.Data
        }
    }

    $stdOutEvent = Register-ObjectEvent `
        -InputObject $process `
        -Action $scripBlock `
        -EventName 'OutputDataReceived'
    $stdErrEvent = Register-ObjectEvent `
        -InputObject $process `
        -Action $scripBlock `
        -EventName 'ErrorDataReceived'

    $process.StartInfo =  $psi

    try {         
         
        [void]$process.Start()

        $process.BeginOutputReadLine()
        $process.BeginErrorReadLine()

        while (-not $process.WaitForExit(100)) {
            # Allow interrupts like CTRL + C by doing a non-blocking wait
        }

        $process.WaitForExit()

    } finally {
        Unregister-Event -SourceIdentifier $stdOutEvent.Name
        Unregister-Event -SourceIdentifier $stdErrEvent.Name
        
        $Global:LASTEXITCODE = $process.ExitCode
        $process.Dispose()
    }

    return $process
}


$isAdmin = [Security.Principal.WindowsPrincipal]::new(
  [Security.Principal.WindowsIdentity]::GetCurrent()
).IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator)

if (-not $isAdmin) {
    throw "Not an administrator"
    return
}

$InformationPreference = 'Continue'
$instance = Get-CimInstance MSFT_VSInstance | Where-Object { $_.Version -ge 16 } | Select-Object -First 1
$installer = [System.IO.Path]::Combine($instance.InstallLocation, "..\..\Installer\setup.exe")

Write-Information "Update Visual Studio"
$vsUpdateProcess = Start-Process -FilePath "$installer" -ArgumentList @(
    "update",
    "--installPath `"$($instance.InstallLocation)`"",    
    "--force",
    "--quiet"
)
Write-Information "vs_installer.exe exited with code: $LASTEXITCODE" 

Write-Information "Remove Components"
$vsUpdateProcess = Start-Process -FilePath "$installer" -ArgumentList @(
    "modify",
    "--installPath `"$($instance.InstallLocation)`"",    
    "--force",
    "--quiet",
    "--remove Component.IncredibuildMenu",
    "--remove Component.IncredibuildMenu"
)
Write-Information "vs_installer.exe exited with code: $LASTEXITCODE" 

}

}