fix(wakeup): fix error handling from Send-MagicPacket

- adapt to changes in error handling in upstream module

wakeup.ps1

@@ -56,40 +56,52 @@ if ( [String]::IsNullOrWhiteSpace($targetComputer))
     {
         $targetComputer = Read-Host -Prompt 'Computer to wake-up'
     } while ( [String]::IsNullOrWhiteSpace($targetComputer))
-    Write-Host
 }
+Write-Host
 
-# find computer in database
+# read database and assemble list of target computers
 [xml]$db = Get-Content -Path $wolDatabase
 $broadcastIP = $db.WOLDatabase.Configuration.BroadcastAddress
 $port = $db.WOLDatabase.Configuration.Port
 $dnsSuffix = $db.WOLDatabase.Configuration.DnsSuffix
-
 $targetComputers = [System.Collections.Generic.List[PSObject]]::new()
 $db.WOLDatabase.Computers.Computer | Where-Object { $_.name -match "$targetComputer" } | ForEach-Object { $targetComputers.Add($_) }
+$removeFromTargetComputers = [System.Collections.Generic.List[String]]::new()
 
+# send WOL magic packets
 $targetComputers | ForEach-Object {
-    if ( [String]::IsNullOrWhiteSpace($_.friendlyName))
+    $wolError = @()
+    $name = $_.name
+    $friendlyName = $_.friendlyName
+    if ( [String]::IsNullOrWhiteSpace($friendlyName))
     {
-        $name = $_.name
         Write-Host "Processing request to wake-up '$name'... " -NoNewline
     }
     else
     {
-        $friendlyName = $_.friendlyName
         Write-Host "Processing request to wake-up '$friendlyName'... " -NoNewline
     }
 
     # send magic packet
-    $_.mac | Send-MagicPacket -BroadcastIP $broadcastIP -Port $port -WarningAction SilentlyContinue -WarningVariable wolErr -ErrorAction SilentlyContinue -ErrorVariable wolErr
-    if ($wolErr.Count -eq 0)
+    $_.mac | Send-MagicPacket -BroadcastIP $broadcastIP -Port $port -ErrorAction SilentlyContinue -ErrorVariable +wolError
+    if ($wolError.Count -eq 0)
     {
         Write-Host -ForegroundColor Green "[OK]"
     }
     else
     {
         Write-Host -ForegroundColor Red "[ERROR]"
+        $removeFromTargetComputers.Add($name)
     }
 }
 
+# remove computers from targetComputers if WOL packet was not successfully sent
+$removeFromTargetComputers | ForEach-Object {
+    $removeName = $_
+    $targetComputers.Remove(($targetComputers | Where-Object { $_.name -eq $removeName })) | Out-Null
+}
+
+# process RDP readiness check
+$targetComputers
+
 Exit 0