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// 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.IO;
using System.Runtime.InteropServices;
/// <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)
{
if (File.Exists(destination))
{
File.Delete(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)
{
if (File.Exists(destination))
{
File.Delete(destination);
}
var directory = Path.GetDirectoryName(destination);
if (!String.IsNullOrEmpty(directory))
{
Directory.CreateDirectory(directory);
}
File.Move(source, destination);
}
[DllImport("Kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
private static extern bool CreateHardLink(string lpFileName, string lpExistingFileName, IntPtr lpSecurityAttributes);
}
}
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