Tyler Gill
08e0708a95
This is inspired largely by the new (/ returning) feature of OneDrive in Windows 10 Fall Creator's Update, which downloads files on-demand. A side effect of that change is that the OneDrive folder (and subfolders of it) are marked as reparse points, even though they are not technically standard symlinks. With this change, a new extension method IsSymlink is added for ISnapshotService and ISystemIO, which checks both the file attributes (for reparse point) and the symlink target path (if null, the path is not treated as a symlink). All places that previously checked only the file attributes have been updated to use either this method (or at least the same logic, in the case of the core BackupHandler file check). One side effect of this change is that '--symlink-policy=store' no longer ignores empty symlinks - they are now treated as regular files. If there are empty symlinks, they will now be backed up as if they were regular files, but I don't know what the conditions are that create symlinks like that, so this might not effect anything in practice.
65 lines
2.8 KiB
C#
65 lines
2.8 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;
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using System.IO;
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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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/// Interface for wrapping System.IO operations.
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/// </summary>
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public interface ISystemIO
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{
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void DirectoryDelete(string path);
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void DirectoryDelete(string path, bool recursive);
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void DirectoryCreate(string path);
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bool DirectoryExists(string path);
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void DirectorySetLastWriteTimeUtc(string path, DateTime time);
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void DirectorySetCreationTimeUtc(string path, DateTime time);
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DateTime DirectoryGetLastWriteTimeUtc(string path);
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DateTime DirectoryGetCreationTimeUtc(string path);
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void FileMove(string source, string target);
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void FileDelete(string path);
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void FileSetLastWriteTimeUtc(string path, DateTime time);
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void FileSetCreationTimeUtc(string path, DateTime time);
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DateTime FileGetLastWriteTimeUtc(string path);
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DateTime FileGetCreationTimeUtc(string path);
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bool FileExists(string path);
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long FileLength(string path);
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Stream FileOpenRead(string path);
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Stream FileOpenWrite(string path);
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Stream FileOpenReadWrite(string path);
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Stream FileCreate(string path);
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FileAttributes GetFileAttributes(string path);
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void SetFileAttributes(string path, FileAttributes attributes);
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void CreateSymlink(string symlinkfile, string target, bool asDir);
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string GetSymlinkTarget(string path);
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string PathGetDirectoryName(string path);
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string PathGetFileName(string path);
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string PathGetExtension(string path);
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string PathChangeExtension(string path, string extension);
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IEnumerable<string> EnumerateFileSystemEntries(string path);
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void SetMetadata(string path, Dictionary<string, string> metdata, bool restorePermissions);
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Dictionary<string, string> GetMetadata(string path, bool isSymlink, bool followSymlink);
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}
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}
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