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duplicati/Duplicati/Library/Snapshots/Windows/WmicVssBackup.cs
T

131 lines
3.8 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.
#nullable enable
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Versioning;
namespace Duplicati.Library.Snapshots.Windows;
/// <summary>
/// Snapshot provider based on WMIC
/// </summary>
[SupportedOSPlatform("windows")]
internal class WmicVssBackup : ISnapshotProvider
{
/// <summary>
/// The manager that contains the actual interface to WMIC
/// </summary>
private WmicShadowCopyManager _manager = new WmicShadowCopyManager();
/// <summary>
/// Gets the VSS enabled drives
/// </summary>
private Lazy<HashSet<string>> _vssEnabledDrives = new Lazy<HashSet<string>>(() => WmicShadowCopyManager.GetVssCapableDrivesViaVssadmin());
/// <inheritdoc/>
public Guid AddToSnapshotSet(string drive)
=> _manager.Add(drive).ParsedId;
/// <inheritdoc/>
public void BackupComplete()
{
}
/// <inheritdoc/>
public void DeleteSnapshot(Guid shadowId, bool forceDelete)
{
foreach (var x in _manager.ShadowCopies.Where(x => x.ParsedId == shadowId))
x.Dispose();
}
/// <inheritdoc/>
public void DisableWriterClasses(Guid[] guids)
{
}
/// <inheritdoc/>
public void Dispose()
{
_manager.Dispose();
}
/// <inheritdoc/>
public void DoSnapshotSet()
{
}
/// <inheritdoc/>
public void EnableWriterClasses(Guid[] guids)
{
}
/// <inheritdoc/>
public void FreeWriterMetadata()
{
}
/// <inheritdoc/>
public void GatherWriterMetadata()
{
}
/// <summary>
/// Stub for returning the snapshot info
/// </summary>
/// <param name="SnapshotDeviceObject">The path where the snapshot is located</param>
private sealed record SnapshotInfo (string SnapshotDeviceObject) : ISnapshotInfo;
/// <inheritdoc/>
public ISnapshotInfo GetSnapshotProperties(Guid shadowId)
=> new SnapshotInfo(_manager.ShadowCopies.First(x => x.ParsedId == shadowId).MappedPath);
/// <inheritdoc/>
public bool IsVolumeSupported(string drive)
{
if (string.IsNullOrWhiteSpace(drive))
return false;
return _vssEnabledDrives.Value.Contains(drive.Substring(0, 1));
}
/// <inheritdoc/>
public IEnumerable<WriterMetaData> ParseWriterMetaData(Guid[] writers)
=> Enumerable.Empty<WriterMetaData>();
/// <inheritdoc/>
public void PrepareForBackup()
{
}
/// <inheritdoc/>
public void StartSnapshotSet()
{
}
/// <inheritdoc/>
public void VerifyWriters(Guid[] guids)
{
}
}