public IEnumerable <Directory> Directories(string filter, SearchScope scope)
{
var path = new Path(filter);
// if it's a rooted or it's a in the form of e.g. "C:"
if (path.IsRooted || Regex.IsMatch(filter, "[A-Z]{1,3}:", RegexOptions.IgnoreCase))
{
var directory = FileSystem.GetDirectory(path.Segments.First());
return(path.Segments.Count() == 1
? new[] { directory }
: directory.Directories(string.Join("\\", path.Segments.Skip(1)
.DefaultIfEmpty("*")
.ToArray())));
}
var filterRegex = filter.Wildcard();
lock (ChildDirectories)
{
var immediateChildren = ChildDirectories
.Cast <Directory>()
.Where(x => x.Exists() && filterRegex.IsMatch(x.Name));
return(scope == SearchScope.CurrentOnly
? immediateChildren.ToList()
: immediateChildren
.Concat(ChildDirectories.SelectMany(x => x.Directories(filter, scope))).ToList());
}
}
public IEnumerable <Directory> Directories()
{
lock (ChildDirectories)
{
return(ChildDirectories
.Cast <Directory>()
.Where(x => x.Exists()).ToList());
}
}