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

   1 //
   2 // ReadLinesFromFile.cs: Task that reads from 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.Generic;
  31 using System.IO;
  32 using Microsoft.Build.Framework;
  33 using Microsoft.Build.Tasks;
  34 using Microsoft.Build.Utilities;
  35
  36 namespace Microsoft.Build.Tasks {
  37         public class ReadLinesFromFile : TaskExtension {
  38
  39                 ITaskItem       file;
  40                 ITaskItem[]     lines;
  41
  42                 public ReadLinesFromFile ()
  43                 {
  44                 }
  45
  46                 public override bool Execute ()
  47                 {
  48                         string full_filename = file.GetMetadata ("FullPath");
  49                         if (!System.IO.File.Exists (full_filename))
  50                                 return true;
  51
  52                         StreamReader streamReader = null;
  53                         try {
  54                                 streamReader = new StreamReader (full_filename);
  55                                 List <ITaskItem> temporaryLines = new List <ITaskItem> ();
  56
  57                                 string line;
  58                                 while ((line = streamReader.ReadLine ()) != null)
  59                                         temporaryLines.Add (new TaskItem (line));
  60
  61                                 lines = temporaryLines.ToArray ();
  62                         } catch (IOException ex) {
  63                                 Log.LogWarningFromException (ex);
  64                         } finally {
  65                                 if (streamReader != null)
  66                                         streamReader.Dispose ();
  67                         }
  68
  69                         return true;
  70                 }
  71
  72                 [Required]
  73                 public ITaskItem File {
  74                         get {
  75                                 return file;
  76                         }
  77                         set {
  78                                 file = value;
  79                         }
  80                 }
  81
  82                 [Output]
  83                 public ITaskItem[] Lines {
  84                         get {
  85                                 return lines;
  86                         }
  87                         set {
  88                                 lines = value;
  89                         }
  90                 }
  91         }
  92 }
  93