static DirectoryCache FindOrCreateDirectoryCache(DirectoryReference Directory)
{
DirectoryCache FoundDirectoryCache;
if (!Directories.TryGetValue(Directory, out FoundDirectoryCache))
{
FoundDirectoryCache = new DirectoryCache(Directory);
Directories.Add(Directory, FoundDirectoryCache);
}
return FoundDirectoryCache;
}
static DirectoryCache FindOrCreateDirectoryCache(DirectoryReference Directory)
{
DirectoryCache FoundDirectoryCache;
if (!Directories.TryGetValue(Directory, out FoundDirectoryCache))
{
FoundDirectoryCache = new DirectoryCache(Directory);
Directories.Add(Directory, FoundDirectoryCache);
}
return(FoundDirectoryCache);
}
static public IEnumerable <DirectoryReference> EnumerateDirectoriesRecursively(DirectoryReference Directory)
{
DirectoryCache FoundDirectoryCache = FindOrCreateDirectoryCache(Directory);
foreach (DirectoryReference SubDirectory in FoundDirectoryCache.EnumerateDirectories())
{
yield return(SubDirectory);
foreach (DirectoryReference ChildSubDirectory in EnumerateDirectoriesRecursively(SubDirectory))
{
yield return(ChildSubDirectory);
}
}
}
public static bool FileExists( string FileFullPath )
{
string FileDirectory = Utils.CleanDirectorySeparators(Path.GetDirectoryName(FileFullPath));
string DirectoriesKey = FileDirectory.ToLowerInvariant();
DirectoryCache FoundDirectoryCache;
if( !Directories.TryGetValue( DirectoriesKey, out FoundDirectoryCache ) )
{
// First time we've seen this directory. Gather information about files.
FoundDirectoryCache = new DirectoryCache( FileDirectory );
Directories.Add( DirectoriesKey, FoundDirectoryCache );
}
// Try to find the file in this directory
return FoundDirectoryCache.HasFile( FileFullPath );
}
static public bool FileExists(string FileFullPath)
{
string FileDirectory = Utils.CleanDirectorySeparators(Path.GetDirectoryName(FileFullPath));
string DirectoriesKey = FileDirectory.ToLowerInvariant();
DirectoryCache FoundDirectoryCache;
if (!Directories.TryGetValue(DirectoriesKey, out FoundDirectoryCache))
{
// First time we've seen this directory. Gather information about files.
FoundDirectoryCache = new DirectoryCache(FileDirectory);
Directories.Add(DirectoriesKey, FoundDirectoryCache);
}
// Try to find the file in this directory
return(FoundDirectoryCache.HasFile(FileFullPath));
}
static public IEnumerable <DirectoryReference> EnumerateDirectories(DirectoryReference Directory)
{
DirectoryCache FoundDirectoryCache = FindOrCreateDirectoryCache(Directory);
return(FoundDirectoryCache.EnumerateDirectories());
}
static public bool DirectoryExists(DirectoryReference Directory)
{
DirectoryCache FoundDirectoryCache = FindOrCreateDirectoryCache(Directory);
return(FoundDirectoryCache.Exists);
}
static public bool FileExists(FileReference File)
{
DirectoryCache FoundDirectoryCache = FindOrCreateDirectoryCache(File.Directory);
return(FoundDirectoryCache.HasFile(File));
}
