public void Create(Stream target, FileFilter filter, string basePath, string packageFormat, string platform, string excludedPath)
        {
            Stream archive = new MemoryStream();
            string cleanUp = null;

            try
            {
                switch (packageFormat)
                {
                case PackageManager.ARCHIVE_FORMAT_TAR_GZIP:
                    RedirectableConsole.WriteLine("Writing package in tar/gzip format...");
                    break;

                case PackageManager.ARCHIVE_FORMAT_NUGET_ZIP:
                    RedirectableConsole.WriteLine("Writing package in NuGet ZIP format... (this is experimental!)");
                    break;

                case PackageManager.ARCHIVE_FORMAT_TAR_LZMA:
                default:
                    RedirectableConsole.WriteLine("Writing package in tar/lzma format...");
                    break;
                }

                switch (packageFormat)
                {
                case PackageManager.ARCHIVE_FORMAT_NUGET_ZIP:
                {
                    if (platform == "Unified")
                    {
                        // With unified packages, the contents have already been deduplicated in the
                        // individual packages we're combining.  Therefore we don't deduplicate again
                        // because we already have the deduplication index calculated as part of the
                        // package contents.  Just add all the files to the ZIP instead.
                        Action <ZipStorer> addFilesToZip = zip =>
                        {
                            RedirectableConsole.WriteLine("Adding files to package...");

                            var progressHelper = new AddFilesProgressRenderer(filter.CountTargetPaths());
                            var current        = 0;

                            var uniqueFiles = new HashSet <string>();

                            var entries = filter.GetExpandedEntries();

                            foreach (var kv in entries.OrderBy(kv => kv.Value))
                            {
                                if (kv.Value.EndsWith("/"))
                                {
                                    // Directory - do nothing
                                }
                                else
                                {
                                    var realFile = Path.Combine(basePath, kv.Key);

                                    if (uniqueFiles.Contains(kv.Value))
                                    {
                                        // Already exists - do nothing
                                    }
                                    else
                                    {
                                        if (excludedPath != null)
                                        {
                                            var realFileInfo = new FileInfo(realFile);

                                            var excludedPathInfo = new FileInfo(excludedPath);
                                            if (excludedPathInfo.FullName == realFileInfo.FullName)
                                            {
                                                // Skip this file because we force it to be excluded.
                                                continue;
                                            }
                                        }

                                        zip.AddFile(
                                            ZipStorer.Compression.Deflate,
                                            realFile,
                                            kv.Value,
                                            string.Empty);
                                        uniqueFiles.Add(kv.Value);
                                    }
                                }

                                current++;

                                progressHelper.SetProgress(current);
                            }

                            progressHelper.FinalizeRendering();
                        };

                        try
                        {
                            using (var zip = ZipStorer.Create(target, string.Empty, true))
                            {
                                addFilesToZip(zip);
                            }
                        }
                        catch (OutOfMemoryException)
                        {
                            // It's possible the archive is too large to store in memory.  Fall
                            // back to using a temporary file on disk.
                            cleanUp = Path.GetTempFileName();
                            RedirectableConsole.WriteLine(
                                "WARNING: Out-of-memory while creating ZIP file, falling back to storing " +
                                "temporary file on disk at " + cleanUp + " during package creation.");
                            archive.Dispose();
                            archive = new FileStream(cleanUp, FileMode.Create, FileAccess.ReadWrite);

                            using (var zip = ZipStorer.Create(archive, string.Empty, true))
                            {
                                addFilesToZip(zip);
                            }
                        }
                    }
                    else
                    {
                        // Deduplicate the contents of the ZIP package.
                        var state = _deduplicator.CreateState();

                        RedirectableConsole.Write("Deduplicating files in package...");

                        var progressHelper = new DedupProgressRenderer(filter.CountTargetPaths());
                        var current        = 0;

                        var entries = filter.GetExpandedEntries();

                        foreach (var kv in entries.OrderBy(kv => kv.Value))
                        {
                            if (kv.Value.EndsWith("/"))
                            {
                                // Directory
                                _deduplicator.AddDirectory(state, kv.Value);
                            }
                            else
                            {
                                // File
                                var realFile     = Path.Combine(basePath, kv.Key);
                                var realFileInfo = new FileInfo(realFile);

                                if (excludedPath != null)
                                {
                                    var excludedPathInfo = new FileInfo(excludedPath);
                                    if (excludedPathInfo.FullName == realFileInfo.FullName)
                                    {
                                        // Skip this file because we force it to be excluded.
                                        continue;
                                    }
                                }

                                _deduplicator.AddFile(state, realFileInfo, kv.Value);
                            }

                            current++;

                            progressHelper.SetProgress(current);
                        }

                        progressHelper.FinalizeRendering();
                        RedirectableConsole.WriteLine("Adding files to package...");

                        try
                        {
                            using (var zip = ZipStorer.Create(target, string.Empty, true))
                            {
                                _deduplicator.PushToZip(state, zip);
                            }
                        }
                        catch (OutOfMemoryException)
                        {
                            // It's possible the archive is too large to store in memory.  Fall
                            // back to using a temporary file on disk.
                            cleanUp = Path.GetTempFileName();
                            RedirectableConsole.WriteLine(
                                "WARNING: Out-of-memory while creating ZIP file, falling back to storing " +
                                "temporary file on disk at " + cleanUp + " during package creation.");
                            archive.Dispose();
                            archive = new FileStream(cleanUp, FileMode.Create, FileAccess.ReadWrite);

                            using (var zip = ZipStorer.Create(archive, string.Empty, true))
                            {
                                _deduplicator.PushToZip(state, zip);
                            }
                        }
                    }

                    break;
                }

                case PackageManager.ARCHIVE_FORMAT_TAR_GZIP:
                case PackageManager.ARCHIVE_FORMAT_TAR_LZMA:
                default:
                {
                    var state = _deduplicator.CreateState();

                    RedirectableConsole.Write("Deduplicating files in package...");

                    var progressHelper = new DedupProgressRenderer(filter.CountTargetPaths());
                    var current        = 0;

                    var entries = filter.GetExpandedEntries();

                    foreach (var kv in entries.OrderBy(kv => kv.Value))
                    {
                        if (kv.Value.EndsWith("/"))
                        {
                            // Directory
                            _deduplicator.AddDirectory(state, kv.Value);
                        }
                        else
                        {
                            // File
                            var realFile     = Path.Combine(basePath, kv.Key);
                            var realFileInfo = new FileInfo(realFile);

                            if (excludedPath != null)
                            {
                                var excludedPathInfo = new FileInfo(excludedPath);
                                if (excludedPathInfo.FullName == realFileInfo.FullName)
                                {
                                    // Skip this file because we force it to be excluded.
                                    continue;
                                }
                            }

                            _deduplicator.AddFile(state, realFileInfo, kv.Value);
                        }

                        current++;

                        progressHelper.SetProgress(current);
                    }

                    progressHelper.FinalizeRendering();
                    RedirectableConsole.WriteLine("Adding files to package...");

                    try
                    {
                        using (var writer = new tar_cs.TarWriter(archive))
                        {
                            _deduplicator.PushToTar(state, writer);
                        }
                    }
                    catch (OutOfMemoryException)
                    {
                        // It's possible the archive is too large to store in memory.  Fall
                        // back to using a temporary file on disk.
                        cleanUp = Path.GetTempFileName();
                        RedirectableConsole.WriteLine(
                            "WARNING: Out-of-memory while creating TAR file, falling back to storing " +
                            "temporary file on disk at " + cleanUp + " during package creation.");
                        archive.Dispose();
                        archive = new FileStream(cleanUp, FileMode.Create, FileAccess.ReadWrite);

                        using (var writer = new tar_cs.TarWriter(archive))
                        {
                            _deduplicator.PushToTar(state, writer);
                        }
                    }

                    break;
                }
                }

                archive.Seek(0, SeekOrigin.Begin);

                switch (packageFormat)
                {
                case PackageManager.ARCHIVE_FORMAT_NUGET_ZIP:
                    // No need to compress anything further.
                    break;

                case PackageManager.ARCHIVE_FORMAT_TAR_GZIP:
                {
                    RedirectableConsole.WriteLine("Compressing package...");

                    using (var compress = new GZipStream(target, CompressionMode.Compress))
                    {
                        archive.CopyTo(compress);
                    }

                    break;
                }

                case PackageManager.ARCHIVE_FORMAT_TAR_LZMA:
                default:
                {
                    RedirectableConsole.Write("Compressing package...");

                    var progressHelper = new CompressProgressRenderer(archive.Length);

                    LZMA.LzmaHelper.Compress(archive, target, progressHelper);

                    progressHelper.FinalizeRendering();

                    break;
                }
                }
            }
            finally
            {
                if (cleanUp != null)
                {
                    try
                    {
                        File.Delete(cleanUp);
                    }
                    catch
                    {
                        RedirectableConsole.WriteLine("WARNING: Unable to clean up temporary package file at " + cleanUp);
                    }
                }
            }
        }