Util/FileSystem.cs

   1 //
   2 // FileSystem.cs
   3 //
   4 // Copyright (C) 2004 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a
   9 // copy of this software and associated documentation files (the "Software"),
  10 // to deal in the Software without restriction, including without limitation
  11 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12 // and/or sell copies of the Software, and to permit persons to whom the
  13 // Software is furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24 // DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.IO;
  29
  30 using Mono.Posix;
  31
  32 namespace Beagle.Util {
  33
  34         public class FileSystem {
  35
  36                 static public bool Exists (string path)
  37                 {
  38                         return File.Exists (path) || Directory.Exists (path);
  39                 }
  40
  41                 static public DateTime GetLastWriteTime (string path)
  42                 {
  43                         if (File.Exists (path))
  44                                 return File.GetLastWriteTime (path);
  45                         else if (Directory.Exists (path))
  46                                 return Directory.GetLastWriteTime (path);
  47                         else
  48                                 throw new IOException (path);
  49                 }
  50
  51                 static public FileSystemInfo New (string path)
  52                 {
  53                         if (Directory.Exists (path))
  54                                 return new DirectoryInfo (path);
  55                         return new FileInfo (path);
  56                 }
  57
  58                 // I guess this is as good a place for this as any.
  59                 static public bool IsSymLink (string path)
  60                 {
  61                         Stat stat = new Stat ();
  62                         Syscall.lstat (path, out stat);
  63                         int mode = (int) stat.Mode & (int)StatModeMasks.TypeMask;
  64                         return mode == (int) StatMode.SymLink;
  65                 }
  66
  67         }
  68
  69 }