public VfsEntry GetChild(string name, VfsEntry entry)
{
string realPath = System.IO.Path.Combine(_dirInfo.FullName, name);
var dir = new DirectoryInfo(realPath);
if (dir.Exists)
{
return(new VfsEntry(dir.Name, false, 0, entry, new VfsPhysicalDirectory(dir)));
}
var file = new FileInfo(realPath);
if (file.Exists)
{
return(new VfsEntry(file.Name, true, file.Length, entry));
}
return(null);
}
public VfsEntry GetChild(string name, VfsEntry entry)
{
string realPath = System.IO.Path.Combine(_pathInZip, name);
ZipEntry ze = _zipFile.GetEntry(realPath + "/") ?? _zipFile.GetEntry(realPath);
if (ze == null)
{
return(null);
}
if (ze.IsFile)
{
return(new VfsEntry(name, true, ze.Size, entry));
}
else
{
return(new VfsEntry(name, false, 0, entry, new VfsZipDirectory(_zipFile, Path.Combine(_pathInZip, name))));
}
}
public IEnumerator <VfsEntry> GetEnumerator(VfsEntry entry)
{
// adapter on top of ZipFile enumerator to filter only current directory
return(_zipFile.Cast <ZipEntry>()
.Where((ze) => {
// if it does not start with the current subdir, skip it
if (!ze.Name.StartsWith(_pathInZip))
{
return false;
}
// if its name starts with the path and is the same length, it is the same string
// but we only want children, not the directory itself.
if (ze.Name.Length == _pathInZip.Length)
{
return false;
}
var firstSlash = ze.Name.IndexOf(System.IO.Path.DirectorySeparatorChar, _pathInZip.Length);
// if we don't find any subsequent slashes, it has to be a file in the current subdir
if (firstSlash == -1)
{
return true;
}
// if we find a slash at the end of the entrys name it is a subdirectory in the current directory
if (firstSlash == ze.Name.Length - 1)
{
return true;
}
// otherwise it is something further down in the tree which we don't want here
return false;
})
.Select((e) => {
if (e.IsDirectory)
{
return new VfsEntry(Path.GetFileName(e.Name.Remove(e.Name.Length - 1)), false, 0, entry, new VfsZipDirectory(_zipFile, e.Name));
}
else
{
return new VfsEntry(Path.GetFileName(e.Name), e.IsFile, e.Size, entry);
}
}).GetEnumerator());
}
public Stream GetStreamForChild(VfsEntry child)
{
var ze = _zipFile.GetEntry(Path.Combine(_pathInZip, child.Name));
return(_zipFile.GetInputStream(ze));
}
public Stream GetStreamForChild(VfsEntry child) => null;
public IEnumerator <VfsEntry> GetEnumerator(VfsEntry entry)
{
yield break;
}
public VfsEntry GetChild(string name, VfsEntry entry) => null;
public VfsPhysicalDirectory(VfsEntry entry)
{
_dirInfo = new DirectoryInfo(entry.Path);
}
