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

   1 //
   2 // Delete.cs: Task that deletes files.
   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.Generic;
  31 using System.IO;
  32 using System.Security;
  33 using Microsoft.Build.Framework;
  34
  35 namespace Microsoft.Build.Tasks {
  36         public sealed class Delete : TaskExtension {
  37
  38                 ITaskItem []    deletedFiles;
  39                 ITaskItem []    files;
  40                 bool            treatErrorsAsWarnings;
  41
  42                 public Delete ()
  43                 {
  44                         treatErrorsAsWarnings = false;
  45                 }
  46
  47                 public override bool Execute ()
  48                 {
  49                         if (files.Length == 0)
  50                                 return true;
  51
  52                         List <ITaskItem> temporaryDeletedFiles = new List <ITaskItem> ();
  53
  54                         foreach (ITaskItem file in files) {
  55                                 string path = file.GetMetadata ("FullPath");
  56                                 if (path == null || !File.Exists (path))
  57                                         //skip
  58                                         continue;
  59
  60                                 try {
  61                                         File.Delete (path);
  62                                         Log.LogMessage (MessageImportance.Normal, "Deleting file '{0}'", path);
  63                                         temporaryDeletedFiles.Add (file);
  64                                 }
  65                                 catch (ArgumentException ex) {
  66                                         LogException (ex);
  67                                 }
  68                                 catch (DirectoryNotFoundException ex) {
  69                                         LogException (ex);
  70                                 }
  71                                 catch (SecurityException ex) {
  72                                         LogException (ex);
  73                                 }
  74                                 catch (UnauthorizedAccessException ex) {
  75                                         LogException (ex);
  76                                 }
  77                                 catch (PathTooLongException ex) {
  78                                         LogException (ex);
  79                                 }
  80                                 catch (IOException ex) {
  81                                         LogException (ex);
  82                                 }
  83                                 catch (Exception ex) {
  84                                         LogException (ex);
  85                                 }
  86                         }
  87
  88                         deletedFiles = temporaryDeletedFiles.ToArray ();
  89
  90                         return true;
  91                 }
  92
  93                 void LogException (Exception ex)
  94                 {
  95                         if (treatErrorsAsWarnings)
  96                                 Log.LogWarningFromException (ex);
  97                         else
  98                                 Log.LogErrorFromException (ex);
  99                 }
 100
 101                 [Output]
 102                 public ITaskItem [] DeletedFiles {
 103                         get { return deletedFiles; }
 104                         set { deletedFiles = value; }
 105                 }
 106
 107                 [Required]
 108                 public ITaskItem [] Files {
 109                         get { return files; }
 110                         set { files = value; }
 111                 }
 112
 113                 public bool TreatErrorsAsWarnings {
 114                         get { return treatErrorsAsWarnings; }
 115                         set { treatErrorsAsWarnings = value; }
 116                 }
 117         }
 118 }
 119