Improve blockShittyhost function

cleanW10.ps1

@@ -16,36 +16,31 @@ function blockShittyHost {
     remove-host $filename $hostname
     Write-Host -NoNewline -ForegroundColor White "Block shitty host $hostname"
     try {
-        $ip + "`t`t" + $hostname | Out-File -encoding ASCII -append $filename
+        if ( ! $(is_host_present $filename $hostname) ){
+            $ip + "`t`t" + $hostname | Out-File -encoding ASCII -append $filename
+        }
+        else {
+            Write-Host -NoNewline -ForegroundColor Yellow " Already blocked "
+        }
     }
     catch {
         Write-Host -ForegroundColor Red " Error "
         return
     }
-    Write-Host -ForegroundColor Green " OK "
+    Write-Host -ForegroundColor Green " done "
 }
 
-function remove-host {
+function is_host_present {
     param([string]$filename, [string]$hostname)
     $c = Get-Content $filename
-    $newLines = @()
 
     foreach ($line in $c) {
         $bits = [regex]::Split($line, "\t+")
-        if ($bits.count -eq 2) {
-            if ($bits[1] -ne $hostname) {
-                $newLines += $line
-            }
-        } else {
-            $newLines += $line
+        if ($bits[1] -eq $hostname) {
+            return $true
         }
     }
-
-    # Write file
-    Clear-Content $filename
-    foreach ($line in $newLines) {
-        $line | Out-File -encoding ASCII -append $filename
-    }
+    return $false
 }
 
 function remove_shittyTasks () {
@@ -162,10 +157,10 @@ Write-Output "I's time to kick ass and chew bubble gum"
 Write-Output "________________________________________"
 write-Output ""
 
-$shittyFeatures | foreach { disableShitty $_ }
-$shittyServices | Foreach { disableShittyService $_ }
-$shittyModernApp | Foreach { disableModernShitty $_ }
-$shittyHosts | Foreach { blockShittyHost $HOST_FILE $HOST_IP $_ }
+#$shittyFeatures | foreach { disableShitty $_ }
+#$shittyServices | Foreach { disableShittyService $_ }
+#$shittyModernApp | Foreach { disableModernShitty $_ }
+$shittyHosts | Foreach { blockShittyHost $HOST_FILE $HOST_IP $_ }
 remove_shittyTasks $shittyTasks
 
 $shittyIP | Foreach {