mcs/class/Microsoft.Build.Tasks/Microsoft.Build.Tasks/Touch.cs

   1 //
   2 // Touch.cs: Creates a new file.
   3 //
   4 // Author:
   5 //   Marek Sieradzki (marek.sieradzki@gmail.com)
   6 //
   7 // (C) 2005 Marek Sieradzki
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27
  28
  29 using System;
  30 using System.Collections;
  31 using System.Collections.Generic;
  32 using System.IO;
  33 using Microsoft.Build.Framework;
  34 using Microsoft.Build.Utilities;
  35
  36 namespace Microsoft.Build.Tasks {
  37         public class Touch : TaskExtension {
  38                 bool            alwaysCreate;
  39                 ITaskItem[]     files;
  40                 bool            forceTouch;
  41                 DateTime        time;
  42                 ITaskItem[]     touchedFiles;
  43
  44                 public Touch ()
  45                 {
  46                         time = DateTime.Now;
  47                 }
  48
  49                 public override bool Execute ()
  50                 {
  51                         if (files.Length == 0)
  52                                 return true;
  53
  54                         bool returnBoolean = true;
  55                         List <ITaskItem> successfulFiles = new List <ITaskItem> ();
  56                         Stream stream = null;
  57
  58                         foreach (ITaskItem file in files) {
  59                                 string fullname = file.GetMetadata ("FullPath");
  60                                 try {
  61                                         if (File.Exists (file.ItemSpec)) {
  62                                                 if ((File.GetAttributes (fullname) & FileAttributes.ReadOnly) == FileAttributes.ReadOnly) {
  63                                                         if (forceTouch) {
  64                                                                 File.SetLastAccessTime (fullname, time);
  65                                                                 File.SetLastWriteTime (fullname, time);
  66                                                                 successfulFiles.Add (file);
  67                                                         }
  68                                                 } else {
  69                                                         File.SetLastAccessTime (fullname, time);
  70                                                         File.SetLastWriteTime (fullname, time);
  71                                                         successfulFiles.Add (file);
  72                                                 }
  73                                         } else if (alwaysCreate == true) {
  74                                                 stream = File.Create (fullname);
  75                                                 stream.Close ();
  76                                                 File.SetLastAccessTime (fullname, time);
  77                                                 File.SetLastWriteTime (fullname, time);
  78                                                 successfulFiles.Add (file);
  79                                         } else {
  80                                                 continue;
  81                                         }
  82
  83                                         touchedFiles = successfulFiles.ToArray ();
  84                                 }
  85                                 catch (Exception ex) {
  86                                         Log.LogErrorFromException (ex);
  87                                         returnBoolean = false;
  88                                 }
  89                         }
  90                         return returnBoolean;
  91                 }
  92
  93                 public bool AlwaysCreate {
  94                         get {
  95                                 return alwaysCreate;
  96                         }
  97                         set {
  98                                 alwaysCreate = value;
  99                         }
 100                 }
 101
 102                 [Required]
 103                 public ITaskItem[] Files {
 104                         get {
 105                                 return files;
 106                         }
 107                         set {
 108                                 files = value;
 109                         }
 110                 }
 111
 112                 public bool ForceTouch {
 113                         get {
 114                                 return forceTouch;
 115                         }
 116                         set {
 117                                 forceTouch = value;
 118                         }
 119                 }
 120
 121                 public string Time {
 122                         get {
 123                                 return time.ToString ();
 124                         }
 125                         set {
 126                                 time = DateTime.Parse (value);
 127                         }
 128                 }
 129
 130                 [Output]
 131                 public ITaskItem[] TouchedFiles {
 132                         get {
 133                                 return touchedFiles;
 134                         }
 135                         set {
 136                                 touchedFiles = value;
 137                         }
 138                 }
 139         }
 140 }
 141