NTFSSecurity/AlphaFS/Filesystem/FileInfo Class/FileInfo.Replace.cs

/*  Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
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using System.Security;

namespace Alphaleonis.Win32.Filesystem
{
   partial class FileInfo
   {
      #region .NET

      /// <summary>Replaces the contents of a specified file with the file described by the current <see cref="FileInfo"/> object, deleting the original file, and creating a backup of the replaced file.</summary>
      /// <returns>A <see cref="FileInfo"/> object that encapsulates information about the file described by the <paramref name="destinationFileName"/> parameter.</returns>
      /// <remarks>
      ///   The Replace method replaces the contents of a specified file with the contents of the file described by the current
      ///   <see cref="FileInfo"/> object. It also creates a backup of the file that was replaced. Finally, it returns a new
      ///    <see cref="FileInfo"/> object that describes the overwritten file.
      /// </remarks>
      /// <remarks>Pass null to the <paramref name="destinationBackupFileName"/> parameter if you do not want to create a backup of the file being replaced.</remarks>
      /// <param name="destinationFileName">The name of a file to replace with the current file.</param>
      /// <param name="destinationBackupFileName">The name of a file with which to create a backup of the file described by the <paramref name="destinationFileName"/> parameter.</param>
      [SecurityCritical]
      public FileInfo Replace(string destinationFileName, string destinationBackupFileName)
      {
         return Replace(destinationFileName, destinationBackupFileName, false, PathFormat.RelativePath);
      }

      /// <summary>Replaces the contents of a specified file with the file described by the current <see cref="FileInfo"/> object, deleting the original file, and creating a backup of the replaced file. Also specifies whether to ignore merge errors.</summary>
      /// <returns>A <see cref="FileInfo"/> object that encapsulates information about the file described by the <paramref name="destinationFileName"/> parameter.</returns>
      /// <remarks>
      ///   The Replace method replaces the contents of a specified file with the contents of the file described by the current
      ///   <see cref="FileInfo"/> object. It also creates a backup of the file that was replaced. Finally, it returns a new
      ///   <see cref="FileInfo"/> object that describes the overwritten file.
      /// </remarks>
      /// <remarks>Pass null to the <paramref name="destinationBackupFileName"/> parameter if you do not want to create a backup of the file being replaced.</remarks>
      /// <param name="destinationFileName">The name of a file to replace with the current file.</param>
      /// <param name="destinationBackupFileName">The name of a file with which to create a backup of the file described by the <paramref name="destinationFileName"/> parameter.</param>
      /// <param name="ignoreMetadataErrors"><see langword="true"/> to ignore merge errors (such as attributes and ACLs) from the replaced file to the replacement file; otherwise, <see langword="false"/>.</param>
      [SecurityCritical]
      public FileInfo Replace(string destinationFileName, string destinationBackupFileName, bool ignoreMetadataErrors)
      {
         return Replace(destinationFileName, destinationBackupFileName, ignoreMetadataErrors, PathFormat.RelativePath);
      }

      #endregion // .NET

      #region AlphaFS

      /// <summary>[AlphaFS] Replaces the contents of a specified file with the file described by the current <see cref="FileInfo"/> object, deleting the original file, and creating a backup of the replaced file. Also specifies whether to ignore merge errors.</summary>
      /// <returns>A <see cref="FileInfo"/> object that encapsulates information about the file described by the <paramref name="destinationFileName"/> parameter.</returns>
      /// <remarks>
      ///   The Replace method replaces the contents of a specified file with the contents of the file described by the current
      ///   <see cref="FileInfo"/> object. It also creates a backup of the file that was replaced. Finally, it returns a new
      ///   <see cref="FileInfo"/> object that describes the overwritten file.
      /// </remarks>
      /// <remarks>Pass null to the <paramref name="destinationBackupFileName"/> parameter if you do not want to create a backup of the file being replaced.</remarks>
      /// <param name="destinationFileName">The name of a file to replace with the current file.</param>
      /// <param name="destinationBackupFileName">The name of a file with which to create a backup of the file described by the <paramref name="destinationFileName"/> parameter.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public FileInfo Replace(string destinationFileName, string destinationBackupFileName, PathFormat pathFormat)
      {
         const GetFullPathOptions options = GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck;

         string destinationFileNameLp = Path.GetExtendedLengthPathCore(Transaction, destinationFileName, pathFormat, options);
         string destinationBackupFileNameLp = destinationBackupFileName != null
            ? Path.GetExtendedLengthPathCore(Transaction, destinationBackupFileName, pathFormat, options)
            : null;

         File.ReplaceCore(LongFullName, destinationFileNameLp, destinationBackupFileNameLp, false, PathFormat.LongFullPath);

         return new FileInfo(Transaction, destinationFileNameLp, PathFormat.LongFullPath);
      }

      /// <summary>[AlphaFS] Replaces the contents of a specified file with the file described by the current <see cref="FileInfo"/> object, deleting the original file, and creating a backup of the replaced file. Also specifies whether to ignore merge errors.</summary>
      /// <returns>A <see cref="FileInfo"/> object that encapsulates information about the file described by the <paramref name="destinationFileName"/> parameter.</returns>
      /// <remarks>
      ///   The Replace method replaces the contents of a specified file with the contents of the file described by the current
      ///   <see cref="FileInfo"/> object. It also creates a backup of the file that was replaced. Finally, it returns a new
      ///   <see cref="FileInfo"/> object that describes the overwritten file.
      /// </remarks>
      /// <remarks>Pass null to the <paramref name="destinationBackupFileName"/> parameter if you do not want to create a backup of the file being replaced.</remarks>
      /// <param name="destinationFileName">The name of a file to replace with the current file.</param>
      /// <param name="destinationBackupFileName">The name of a file with which to create a backup of the file described by the <paramref name="destinationFileName"/> parameter.</param>
      /// <param name="ignoreMetadataErrors"><see langword="true"/> to ignore merge errors (such as attributes and ACLs) from the replaced file to the replacement file; otherwise, <see langword="false"/>.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public FileInfo Replace(string destinationFileName, string destinationBackupFileName, bool ignoreMetadataErrors, PathFormat pathFormat)
      {
         const GetFullPathOptions options = GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck;

         string destinationFileNameLp = Path.GetExtendedLengthPathCore(Transaction, destinationFileName, pathFormat, options);
         string destinationBackupFileNameLp = destinationBackupFileName != null
            ? Path.GetExtendedLengthPathCore(Transaction, destinationBackupFileName, pathFormat, options)
            : null;

         File.ReplaceCore(LongFullName, destinationFileNameLp, destinationBackupFileNameLp, ignoreMetadataErrors, PathFormat.LongFullPath);

         return new FileInfo(Transaction, destinationFileNameLp, PathFormat.LongFullPath);
      }

      #endregion // AlphaFS
   }
}