Enable or disable FxCop Code Analysis solution wide in Visual Studio Package Manager Console

SetCodeManalysis.ps1

    function Disable-CodeAnalysis(){
      ForEach ($project in $dte.Solution.Projects) {
        Set-CodeAnalysis($project, $false)
      }
    }

    function Enable-CodeAnalysis(){
      ForEach ($project in $dte.Solution.Projects) {
        Set-CodeAnalysis($project, $true)
      }
    }

    function Set-CodeAnalysis($project, $value){
      $projectName = $project.Name
      $projectFilePath = $project.FullName
      if ([System.String]::IsNullOrWhiteSpace($projectFilePath)){
        if($proj.Kind -eq "{66A26720-8FB5-11D2-AA7E-00C04F688DDE}"){
          ForEach ($item in $proj.ProjectItems) {
            if($item.SubProject -ne $null){
              Set-CodeAnalysis($item.SubProject, $value)
            }
          }
        }
        continue;
      }
      $xmlDocument = new-object System.Xml.XmlDocument
      $action = "Enable"
      if($value -ne $true){
        $action = "Disable"
      }

      Write-Host "$action code analysis for $projectName at $projectFilePath"
      $xmlDocument.Load([string]$projectFilePath);
  
      $namespaceManager = new-object System.Xml.XmlNamespaceManager($xmlDocument.NameTable);
      $namespaceManager.AddNamespace("ns", "http://schemas.microsoft.com/developer/msbuild/2003");
  
      $nodes = $xmlDocument.SelectNodes("//ns:RunCodeAnalysis", $namespaceManager);
      if ($nodes -eq $null){
        continue;
      }
      foreach ($node in $nodes){
        $node.InnerText = "$value";
      }
      $xmlDocument.Save($projectFilePath);
    }

This works partially, enable does not work - always disables.
Also - does not get projects withing solution folders.

Thanks for the starting point to getting this done though. It is a pain to have CA running all the time.