98 lines
3.9 KiB
C#
98 lines
3.9 KiB
C#
// Copyright (C) 2015, The Duplicati Team
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// http://www.duplicati.com, info@duplicati.com
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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using System.Collections.Generic;
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namespace Duplicati.Library.Snapshots
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{
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/// <summary>
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/// Handler for providing a snapshot like access to files and folders
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/// </summary>
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public sealed class NoSnapshotLinux : SnapshotBase
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{
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private static SystemIOLinux SYS_IO = new SystemIOLinux();
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/// <summary>
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/// Returns the symlink target if the entry is a symlink, and null otherwise
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/// </summary>
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/// <param name="localPath">The file or folder to examine</param>
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/// <returns>The symlink target</returns>
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public override string GetSymlinkTarget(string localPath)
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{
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return SYS_IO.GetSymlinkTarget(localPath);
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}
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/// <summary>
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/// Gets the metadata for the given file or folder
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/// </summary>
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/// <returns>The metadata for the given file or folder</returns>
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/// <param name="localPath">The file or folder to examine</param>
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/// <param name="isSymlink">A flag indicating if the target is a symlink</param>
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/// <param name="followSymlink">A flag indicating if a symlink should be followed</param>
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public override Dictionary<string, string> GetMetadata(string localPath, bool isSymlink, bool followSymlink)
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{
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return SYS_IO.GetMetadata(localPath, isSymlink, followSymlink);
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}
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/// <summary>
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/// Gets a value indicating if the path points to a block device
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/// </summary>
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/// <returns><c>true</c> if this instance is a block device; otherwise, <c>false</c>.</returns>
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/// <param name="localPath">The file or folder to examine</param>
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public override bool IsBlockDevice(string localPath)
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{
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var n = UnixSupport.File.GetFileType(SystemIOLinux.NormalizePath(localPath));
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switch (n)
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{
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case UnixSupport.File.FileType.Directory:
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case UnixSupport.File.FileType.Symlink:
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case UnixSupport.File.FileType.File:
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return false;
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default:
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return true;
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}
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}
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/// <summary>
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/// Gets a unique hardlink target ID
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/// </summary>
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/// <returns>The hardlink ID</returns>
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/// <param name="localPath">The file or folder to examine</param>
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public override string HardlinkTargetID(string localPath)
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{
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var normalizePath = SystemIOLinux.NormalizePath(localPath);
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return UnixSupport.File.GetHardlinkCount(normalizePath) <= 1
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? null
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: UnixSupport.File.GetInodeTargetID(normalizePath);
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}
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/// <inheritdoc />
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public override string ConvertToLocalPath(string snapshotPath)
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{
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return snapshotPath;
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}
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/// <inheritdoc />
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public override string ConvertToSnapshotPath(string localPath)
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{
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return SystemIOLinux.NormalizePath(localPath);
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}
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}
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}
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