public static bool Update(this XContainer proj,
string projectDir, HashSet <CmpNode> newNodes)
{
var oldNodes = new HashSet <CmpNode>(
proj.FindByDirectory(projectDir).Select(x => x.ToCmpNode()));
var toAdd = newNodes.Except(oldNodes).ToList();
var toRemove = oldNodes.Except(newNodes).ToList();
if (toAdd.Count == 0 && toRemove.Count == 0)
{
return(false);
}
foreach (var cmpNode in toRemove)
{
proj.Find(cmpNode).Remove();
}
foreach (var cmpNode in toAdd)
{
proj.Insert(projectDir, cmpNode);
}
return(true);
}