Kenneth SkovhedeandGitHub
d99f74ed94
* Rewrite the backend manager. This creates a new more logic backend manager that handles all backend operations. For each top-level operation, there is now a single backend manager instance that is passed to sub-commands. The internals of the backend manager are now rewritten to use async logic instead of threading. The design uses a single task runner that dispatches operations and honors concurrent settings and limits from one place. The logic for each operation has been moved into a separate files/classes to make it easier to understand each operation. This fixes #5804 * Fixed a few issues with not awaiting tasks * Fixed not creating empty databases * Fixed an issue with hashes not being recorded on download * Reworked the download logic to avoid attempting to decrypt the file if it has been modified. * Review fixes * Renamed db collector to better reflect the purpose. * Review fixes
98 lines
4.5 KiB
C#
98 lines
4.5 KiB
C#
// Copyright (C) 2025, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using Duplicati.Library.Main.Database;
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using Duplicati.Library.Utility;
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using System.Threading;
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namespace Duplicati.Library.Main.Operation
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{
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internal class ListControlFilesHandler
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{
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private readonly Options m_options;
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private readonly ListResults m_result;
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public ListControlFilesHandler(Options options, ListResults result)
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{
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m_options = options;
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m_result = result;
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}
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public void Run(IBackendManager backendManager, IEnumerable<string> filterstrings, Library.Utility.IFilter compositefilter)
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{
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var cancellationToken = CancellationToken.None;
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using (var tmpdb = new TempFile())
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using (var db = new LocalDatabase(System.IO.File.Exists(m_options.Dbpath) ? m_options.Dbpath : (string)tmpdb, "ListControlFiles", true))
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{
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m_result.SetDatabase(db);
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var filter = JoinedFilterExpression.Join(new Library.Utility.FilterExpression(filterstrings), compositefilter);
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try
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{
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var filteredList = ListFilesHandler.ParseAndFilterFilesets(backendManager.ListAsync(cancellationToken).Await(), m_options);
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if (filteredList.Count == 0)
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throw new Exception("No filesets found on remote target");
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Exception lastEx = new Exception("No suitable files found on remote target");
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foreach (var fileversion in filteredList)
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try
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{
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if (!m_result.TaskControl.ProgressRendevouz().Await())
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return;
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var file = fileversion.Value.File;
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var entry = db.GetRemoteVolume(file.Name);
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var files = new List<Library.Interface.IListResultFile>();
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using (var tmpfile = backendManager.GetAsync(file.Name, entry.Hash, entry.Size < 0 ? file.Size : entry.Size, cancellationToken).Await())
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using (var tmp = new Volumes.FilesetVolumeReader(RestoreHandler.GetCompressionModule(file.Name), tmpfile, m_options))
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foreach (var cf in tmp.ControlFiles)
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if (Library.Utility.FilterExpression.Matches(filter, cf.Key))
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files.Add(new ListResultFile(cf.Key, null));
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m_result.SetResult(new Library.Interface.IListResultFileset[] { new ListResultFileset(fileversion.Key, BackupType.PARTIAL_BACKUP, fileversion.Value.Time, -1, -1) }, files);
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lastEx = null;
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break;
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}
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catch (Exception ex)
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{
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lastEx = ex;
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if (ex is System.Threading.ThreadAbortException)
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throw;
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}
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if (lastEx != null)
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throw lastEx;
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}
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finally
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{
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backendManager.WaitForEmptyAsync(db, null, cancellationToken).Await();
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}
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}
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}
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}
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}
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