public static Unit CopyTo(this VirtualDir dir, Tuple <VirtualDir, string> d)
{
if (dir == null)
{
throw new IOException("source directory does not exist");
}
if (d == null)
{
throw new DirectoryNotFoundException();
}
if (d.Item1.DirectoryExists(d.Item2) || d.Item1.FileExists(d.Item2))
{
throw new IOException("name in target exists");
}
var newDir = dir.Clone();
newDir.Name = d.Item2;
newDir.Parent = d.Item1;
d.Item1.Directories[newDir.Name] = newDir;
return(Unit.Default);
}
public static Dir ToDir(this VirtualDir dir)
{
if (dir == null)
{
throw new IOException("does not exist");
}
var path = dir.GetPath();
var fs = dir.Files.Select(x => Path.Combine(path, x.Key));
var ds = dir.Directories.Select(x => Path.Combine(path, x.Key));
return(Dir.Create(path, ds, fs));
}
public static Unit Remove(this VirtualDir dir)
{
if (dir == null)
{
throw new DirectoryNotFoundException();
}
if (dir.Parent != null)
{
dir.Parent.RemoveDir(dir);
dir.Parent = null;
}
return(Unit.Default);
}
public VirtualDir Clone()
{
var dir = new VirtualDir();
foreach (var sd in Directories)
{
dir.Directories[sd.Key] = sd.Value.Clone();
}
foreach (var sf in Files)
{
dir.Files[sf.Key] = sf.Value.ConvertAll(_ => _);
}
return(dir);
}
public static Tuple <VirtualDir, string> GetNameInExistingDirectory(this VirtualDir dir, IEnumerable <string> path)
{
if (dir == null)
{
throw new DirectoryNotFoundException("directory does not exist");
}
if (!path.Any())
{
throw new Exception("GetNameInDirectory called with an empty string");
}
if (path.Count() == 1)
{
return(new Tuple <VirtualDir, string>(dir, path.Last()));
}
VirtualDir directory;
dir.Directories.TryGetValue(path.First(), out directory);
return(directory.GetNameInExistingDirectory(path.Skip(1)));
}
public static Unit MoveTo(this VirtualDir dir, Tuple <VirtualDir, string> d)
{
if (dir == null)
{
throw new DirectoryNotFoundException("source directory does not exist");
}
if (d == null)
{
throw new DirectoryNotFoundException("target directory does not exist");
}
if (d.Item1.DirectoryExists(d.Item2) || d.Item1.FileExists(d.Item2))
{
throw new IOException("name in target exists");
}
dir.Parent.Directories.Remove(dir.Name);
dir.Name = d.Item2;
dir.Parent = d.Item1;
d.Item1.Directories[dir.Name] = dir;
return(Unit.Default);
}
public static Tuple <VirtualDir, string> GetNameInExistingDirectory(this VirtualDir dir, string path)
{
return(dir.GetNameInExistingDirectory(path.Split(Path.DirectorySeparatorChar)));
}
internal void RemoveDir(VirtualDir virtualDir)
{
Directories.Remove(virtualDir.Name);
}
private VirtualFileSystem()
{
Root = new VirtualDir();
}