1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.Native
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
/// <summary>
/// File system helpers.
/// </summary>
public static class FileSystem
{
/// <summary>
/// Copies a file.
/// </summary>
/// <param name="source">The file to copy.</param>
/// <param name="destination">The destination file.</param>
/// <param name="allowHardlink">Allow hardlinks.</param>
public static void CopyFile(string source, string destination, bool allowHardlink)
{
EnsureDirectoryWithoutFile(destination);
if (!allowHardlink || !CreateHardLink(destination, source, IntPtr.Zero))
{
#if DEBUG
var er = Marshal.GetLastWin32Error();
#endif
File.Copy(source, destination, overwrite: true);
}
}
/// <summary>
/// Moves a file.
/// </summary>
/// <param name="source">The file to move.</param>
/// <param name="destination">The destination file.</param>
public static void MoveFile(string source, string destination)
{
EnsureDirectoryWithoutFile(destination);
File.Move(source, destination);
}
/// <summary>
/// Reset the ACLs on a set of files.
/// </summary>
/// <param name="files">The list of file paths to set ACLs.</param>
public static void ResetAcls(IEnumerable<string> files)
{
var aclReset = new FileSecurity();
aclReset.SetAccessRuleProtection(false, false);
foreach (var file in files)
{
new FileInfo(file).SetAccessControl(aclReset);
}
}
private static void EnsureDirectoryWithoutFile(string path)
{
File.Delete(path);
var directory = Path.GetDirectoryName(path);
if (!String.IsNullOrEmpty(directory))
{
Directory.CreateDirectory(directory);
}
}
[DllImport("Kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
private static extern bool CreateHardLink(string lpFileName, string lpExistingFileName, IntPtr lpSecurityAttributes);
}
}
|
