mcs/class/System.IO.Compression/SharpCompress/Reader/IReader.Extensions.cs

   1 using System.IO;
   2 using SharpCompress.Common;
   3
   4 namespace SharpCompress.Reader
   5 {
   6     internal static class IReaderExtensions
   7     {
   8 #if !PORTABLE && !NETFX_CORE
   9         public static void WriteEntryTo(this IReader reader, string filePath)
  10         {
  11             using (Stream stream = File.Open(filePath, FileMode.Create, FileAccess.Write))
  12             {
  13                 reader.WriteEntryTo(stream);
  14             }
  15         }
  16
  17         public static void WriteEntryTo(this IReader reader, FileInfo filePath)
  18         {
  19             using (Stream stream = filePath.Open(FileMode.Create))
  20             {
  21                 reader.WriteEntryTo(stream);
  22             }
  23         }
  24
  25         /// <summary>
  26         /// Extract all remaining unread entries to specific directory, retaining filename
  27         /// </summary>
  28         public static void WriteAllToDirectory(this IReader reader, string destinationDirectory,
  29                                                ExtractOptions options = ExtractOptions.Overwrite)
  30         {
  31             while (reader.MoveToNextEntry())
  32             {
  33                 reader.WriteEntryToDirectory(destinationDirectory, options);
  34             }
  35         }
  36
  37         /// <summary>
  38         /// Extract to specific directory, retaining filename
  39         /// </summary>
  40         public static void WriteEntryToDirectory(this IReader reader, string destinationDirectory,
  41                                                  ExtractOptions options = ExtractOptions.Overwrite)
  42         {
  43             string destinationFileName = string.Empty;
  44             string file = Path.GetFileName(reader.Entry.Key);
  45
  46
  47             if (options.HasFlag(ExtractOptions.ExtractFullPath))
  48             {
  49                 string folder = Path.GetDirectoryName(reader.Entry.Key);
  50                 string destdir = Path.Combine(destinationDirectory, folder);
  51                 if (!Directory.Exists(destdir))
  52                 {
  53                     Directory.CreateDirectory(destdir);
  54                 }
  55                 destinationFileName = Path.Combine(destdir, file);
  56             }
  57             else
  58             {
  59                 destinationFileName = Path.Combine(destinationDirectory, file);
  60             }
  61
  62             if (!reader.Entry.IsDirectory)
  63             {
  64                 reader.WriteEntryToFile(destinationFileName, options);
  65             }
  66             else if (options.HasFlag(ExtractOptions.ExtractFullPath) && !Directory.Exists(destinationFileName))
  67             {
  68                 Directory.CreateDirectory(destinationFileName);
  69             }
  70         }
  71
  72         /// <summary>
  73         /// Extract to specific file
  74         /// </summary>
  75         public static void WriteEntryToFile(this IReader reader, string destinationFileName,
  76                                             ExtractOptions options = ExtractOptions.Overwrite)
  77         {
  78             FileMode fm = FileMode.Create;
  79
  80             if (!options.HasFlag(ExtractOptions.Overwrite))
  81             {
  82                 fm = FileMode.CreateNew;
  83             }
  84             using (FileStream fs = File.Open(destinationFileName, fm))
  85             {
  86                 reader.WriteEntryTo(fs);
  87                 //using (Stream s = reader.OpenEntryStream())
  88                 //{
  89                 //    s.TransferTo(fs);
  90                 //}
  91             }
  92         }
  93 #endif
  94     }
  95 }