mirror of
https://github.com/duplicati/duplicati.git
synced 2025-11-28 03:20:25 +08:00
99 lines
3.7 KiB
C#
99 lines
3.7 KiB
C#
// Copyright (C) 2025, The Duplicati Team
|
|
// https://duplicati.com, hello@duplicati.com
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the "Software"),
|
|
// to deal in the Software without restriction, including without limitation
|
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
// and/or sell copies of the Software, and to permit persons to whom the
|
|
// Software is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
|
|
using Duplicati.Library.Interface;
|
|
|
|
namespace Duplicati.Library.SourceProvider;
|
|
|
|
/// <summary>
|
|
/// A source provider that wraps a backend
|
|
/// </summary>
|
|
/// <param name="backend">The backend to wrap</param>
|
|
/// <param name="mountedPath">The path to mount the backend</param>
|
|
public class BackendSourceProvider(IFolderEnabledBackend backend, string mountedPath) : ISourceProvider, ISourceProviderModule
|
|
{
|
|
/// <summary>
|
|
/// The wrapped backend
|
|
/// </summary>
|
|
public IFolderEnabledBackend WrappedBackend => backend;
|
|
|
|
/// <summary>
|
|
/// The path where the provider is logically mounted
|
|
/// </summary>
|
|
public string MountedPath => mountedPath;
|
|
|
|
/// <inheritdoc/>
|
|
public string Key => backend.ProtocolKey;
|
|
|
|
/// <inheritdoc/>
|
|
public string DisplayName => backend.DisplayName;
|
|
|
|
/// <inheritdoc/>
|
|
public IList<ICommandLineArgument> SupportedCommands => backend.SupportedCommands;
|
|
|
|
/// <summary>
|
|
/// The prepared root entry, if any
|
|
/// </summary>
|
|
private BackendSourceFileEntry? preparedRoot;
|
|
|
|
/// <summary>
|
|
/// Flags if the provider has been initialized
|
|
/// </summary>
|
|
private int isInitialized = 0;
|
|
|
|
/// <summary>
|
|
/// Creates a root entry
|
|
/// </summary>
|
|
/// <returns>The root entry</returns>
|
|
private BackendSourceFileEntry CreateRoot()
|
|
=> new BackendSourceFileEntry(this, "", true, true, new DateTime(0), new DateTime(0), 0);
|
|
|
|
/// <inheritdoc/>
|
|
public async Task Initialize(CancellationToken cancellationToken)
|
|
{
|
|
// Only allow a single intiiialization call
|
|
if (Interlocked.Exchange(ref isInitialized, 1) != 0)
|
|
return;
|
|
|
|
// Prepare the root entry
|
|
var root = CreateRoot();
|
|
await root.PrepareEnumerator(cancellationToken).ConfigureAwait(false);
|
|
preparedRoot = root;
|
|
}
|
|
|
|
/// <inheritdoc/>
|
|
public IAsyncEnumerable<ISourceProviderEntry> Enumerate(CancellationToken cancellationToken)
|
|
=> new[] { Interlocked.Exchange(ref preparedRoot, null) ?? CreateRoot() }.ToAsyncEnumerable();
|
|
|
|
/// <inheritdoc/>
|
|
public async Task<ISourceProviderEntry?> GetEntry(string path, bool isFolder, CancellationToken cancellationToken)
|
|
{
|
|
var entry = await backend.GetEntryAsync(BackendSourceFileEntry.NormalizePathTo(path, '/'), cancellationToken).ConfigureAwait(false);
|
|
return entry == null ? null : BackendSourceFileEntry.FromFileEntry(this, path, entry);
|
|
}
|
|
|
|
/// <inheritdoc/>
|
|
public void Dispose()
|
|
{
|
|
WrappedBackend.Dispose();
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
}
|