Uninstall Nancy implementation of Sitecore.Ship

UninstallNancySitecoreShip.ps1

# uninstall Nancy version of Sitecore.Ship
$websitePath = "C:\inetpub\SIM\shipNancy\Website"

if (!(Test-Path $websitePath))
{
    Write-Host "Cannot find the path $($websitePath)"
    return
}

# Delete ship.config file
$configPath = Join-Path $websitePath -ChildPath "App_Config\Include\ship.config"
if (Test-Path $configPath)
{
    Write-Host "Deleting ship.config file."
    Remove-Item -Path $configPath
}

# Delete web.config entries
Write-Host "Deleting Sitecore.Ship entries from web.config."
$configPath = Join-Path $websitePath -ChildPath "web.config"
$xml = [xml](Get-Content $configPath)

# Remove configSections  
$node = $xml.configuration.SelectSingleNode("configSections/section[@name='packageInstallation']")
$node.ParentNode.RemoveChild($node) | Out-Null
$node = $xml.configuration.SelectSingleNode("configSections/section[@name='nancyFx']")
$node.ParentNode.RemoveChild($node) | Out-Null

# Remove packageInstallation
$node = $xml.configuration.SelectSingleNode("packageInstallation")
$node.ParentNode.RemoveChild($node) | Out-Null

# Remove nancyFx
$node = $xml.configuration.SelectSingleNode("nancyFx")
$node.ParentNode.RemoveChild($node) | Out-Null

# Remove NancyHttpRequestHandler
$node = $xml.configuration.SelectSingleNode("system.web/httpHandlers/add[@type='Nancy.Hosting.Aspnet.NancyHttpRequestHandler']")
$node.ParentNode.RemoveChild($node) | Out-Null
$node = $xml.configuration.SelectSingleNode("system.webServer/handlers/remove[@name='Nancy']")
$node.ParentNode.RemoveChild($node) | Out-Null
$node = $xml.configuration.SelectSingleNode("system.webServer/handlers/add[@name='Nancy']")
$node.ParentNode.RemoveChild($node) | Out-Null

# Remove assembly binding redirect
$nodes = $xml.configuration.runtime.assemblyBinding.dependentAssembly
write-host "node count: $($nodes.Count)"
$nodes | % {
        if ($_.assemblyIdentity.Attributes['name'].'#text' -eq "Antlr3.Runtime")
        {
            $_.ParentNode.RemoveChild($_) | Out-Null
        }
    }

Write-Host "Saving changes to Web.config"
$xml.Save($configPath)

# Delete Assemblies
Write-Host "Deleting Sitecore.Ship assemblies."
$binPath = Join-Path $websitePath -ChildPath "bin"
Remove-Item -Path (Join-Path $binPath -ChildPath "Nancy*.dll")
Remove-Item -Path (Join-Path $binPath -ChildPath "Sitecore.Ship*.dll")

Write-Host "Sitecore.Ship is uninstalled."