Creating Directories in a ZipArchive C# .Net 4.5

Question

A ZipArchive is a collection of ZipArchiveEntries, and adding/removing \"Entries\" works nicely. But it appears there is no notion of directories / nested \"Archives\". In t

Answer 1

Here is one possible solution:

public static class ZipArchiveExtension
{
    public static ZipArchiveDirectory CreateDirectory(this ZipArchive @this, string directoryPath)
    {
        return new ZipArchiveDirectory(@this, directoryPath);
    }
}

public class ZipArchiveDirectory
{
    private readonly string _directory;
    private ZipArchive _archive;

    internal ZipArchiveDirectory(ZipArchive archive, string directory)
    {
        _archive = archive;
        _directory = directory;
    }

    public ZipArchive Archive { get{return _archive;}}

    public ZipArchiveEntry CreateEntry(string entry)
    {
        return _archive.CreateEntry(_directory + "/" + entry);
    }

    public ZipArchiveEntry CreateEntry(string entry, CompressionLevel compressionLevel)
    {
        return _archive.CreateEntry(_directory + "/" + entry, compressionLevel);
    }
}

and used:

var directory = _archive.CreateDirectory(context);
var entry = directory.CreateEntry(context);
var stream = entry.Open();

but I can foresee problems with nesting, perhaps.