Trigger action on external disk connected

backup.ps1

# The targetpartition to backup to, obtain it with:
# Get-WmiObject Win32_LogicalDisk | Select-Object DeviceID, VolumeSerialNumber
$TargetPartition = ''
# Notification settings
$NotifyFrom = ''
$NotifyTo = ''
$SmtpServer = ''
$SmtpPort = '587'
$SmtpPass = ''

$SecurePassword=Convertto-SecureString –String $SmtpPass –AsPlainText –force

$SmtpCred = new-object -typename System.Management.Automation.PSCredential `
         -argumentlist $NotifyFrom, $SecurePassword



# Write-Debug $TargetPartition
# Write-Debug $NotifyFrom
# Write-Debug $NotifyTo
# Write-Debug $SmtpServer

function CheckDiskPresent {
  Start-Sleep 10
  Write-Debug "DEBUG: Checking device is present"
  $LogicalDisks = Get-WmiObject Win32_LogicalDisk |
  Select-Object *

  $TargetVolume = $nil
  $LogicalDisks | ForEach-Object {
    Write-Debug "DEBUG: $($_.VolumeSerialNumber)"
    if ($_.VolumeSerialNumber -eq $TargetPartition) {
      $TargetVolume = $_.DeviceId
      Write-Debug "DEBUG: device found on volume $TargetVolume"
      return $TargetVolume
    }
  }
}

function NofifyFailed ($body) {
  Write-Debug "DEBUG: Sending Failed Notification"
  if (!$body) {
    $body = " "
  }
  Send-MailMessage -From $NotifyFrom -To $NotifyTo -SmtpServer $SmtpServer -Port $SmtpPort -Credential $SmtpCred `
    -Subject 'Notificaciones de Backup: Error en el backup' `
    -Body $body
}

function NotifySuccess ($body) {
  Write-Debug "DEBUG: Sending Success Notification"
  if (!$body) {
    $body = " "
  }
  Send-MailMessage -From $NotifyFrom -To $NotifyTo -SmtpServer $SmtpServer -Port $SmtpPort -Credential $SmtpCred `
    -Subject 'Notificaciones de Backup: Completado con exito' `
    -Body $body
}

function DeleteOldFiles($path) {
  $limit = (Get-Date).AddDays(-180)
  $path = $path + "\Monthly"
  
  # Delete files older than the $limit.
  Get-ChildItem -Path $path -Recurse -Force | Where-Object { !$_.PSIsContainer -and $_.LastWriteTime -lt $limit } | Remove-Item -Force

  # Delete any empty directories left behind after deleting the old files.
  Get-ChildItem -Path $path -Recurse -Force | Where-Object { $_.PSIsContainer -and (Get-ChildItem -Path $_.FullName -Recurse -Force | Where-Object { !$_.PSIsContainer }) -eq $null } | Remove-Item -Force -Recurse

}

function Start-Backup {
  $TargetVolume = CheckDiskPresent
  if ($TargetVolume) {
    Write-Output "INFO: Disk $TargetPartition present on $TargetVolume"
    try {
      Stop-Service CobianBackup11
      Write-Output "INFO: Service stopped"
      &'C:\Program Files (x86)\Cobian Backup 11\Cobian.exe' '-tasks:{535A4CED-EA1F-4E06-BB4B-469152165FDC}' 'nogui' '-autoclose' | Out-Null
      Write-Output "INFO: Deleting old files"
      DeleteOldFiles($TargetVolume)
    }
    catch {
      Write-Error "Unable to complete backup job "
      NofifyFailed($_.Exeption.Message)
    }
    Start-Service CobianBackup11
    NotifySuccess('Backup task {535A4CED-EA1F-4E06-BB4B-469152165FDC} completed OK')
  } else {
    Write-Output "INFO: Disk $TargetPartition NOT present"
  }
}


Register-WmiEvent -Class win32_VolumeChangeEvent -SourceIdentifier volumeChange
write-host "INFO: Beginning script..."
do {
  $newEvent = Wait-Event -SourceIdentifier volumeChange
  $eventType = $newEvent.SourceEventArgs.NewEvent.EventType
  $eventTypeName = switch($eventType) {
    1 {"Configuration changed"}
    2 {"Device arrival"}
    3 {"Device removal"}
    4 {"docking"}
  }
  write-host (get-date -format s) " Event detected = " $eventTypeName
  if ($eventType -eq 2) {
    Start-Backup
  }
  Remove-Event -SourceIdentifier volumeChange
} while (1-eq1) #Loop until next event
Unregister-Event -SourceIdentifier volumeChange