class/Gtk.TeamFoundation/DiffItemNull.cs

   1 //
   2 // DiffItemNull.cs
   3 //
   4 // Authors:
   5 //      Joel Reed (joelwreed@gmail.com)
   6 //
   7
   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.IO;
  31 using System.Collections;
  32 using System.Collections.Generic;
  33 using System.Text;
  34 using Microsoft.TeamFoundation.Client;
  35 using Microsoft.TeamFoundation.VersionControl.Common;
  36 using Microsoft.TeamFoundation.VersionControl.Client;
  37
  38 internal sealed class DiffItemNull : IDiffItem
  39 {
  40         private string label;
  41
  42         public DiffItemNull ()
  43                 {
  44                 }
  45
  46         public string GetFile ()
  47         {
  48                 return "";
  49         }
  50
  51         public bool IsTemporary
  52         {
  53                 get { return true; }
  54         }
  55
  56         public string Label
  57         {
  58                 get { return label; }
  59                 set { label = value; }
  60         }
  61
  62         public int GetEncoding()
  63         {
  64                 return Encoding.UTF8.CodePage;
  65         }
  66 }
  67
  68 internal class DiffHelper
  69 {
  70         static public void ShowChangeset(VersionControlServer vcs,
  71                                                                                                                                          ChangesetVersionSpec versionSpec,
  72                                                                                                                                          bool brief, DiffOptions diffOpts)
  73         {
  74                 int changesetId = versionSpec.ChangesetId;
  75                 Changeset changeset = vcs.GetChangeset(changesetId, true, true);
  76
  77                 // fetch all items in one fell swoop
  78                 List<int> ids = new List<int>();
  79                 foreach (Change change in changeset.Changes)
  80                         ids.Add(change.Item.ItemId);
  81
  82                 // find items in prior changeset
  83                 Item[] items = vcs.GetItems(ids.ToArray(), changesetId-1, true);
  84                 SortedList<int, Item> itemList = new SortedList<int, Item>();
  85                 foreach (Item item in items)
  86                         {
  87                                 // itemId of 0 means a null item, IOW file was added in this changeset
  88                                 // and missing in prior changeset
  89                                 if (item.ItemId == 0) continue;
  90                                 itemList.Add(item.ItemId, item);
  91                         }
  92
  93                 foreach (Change change in changeset.Changes)
  94                         {
  95                                 // skip folders
  96                                 if (change.Item.ItemType == ItemType.Folder) continue;
  97                                 string p = change.Item.ServerItem.Substring(2);
  98
  99                                 if (brief)
 100                                         {
 101                                                 Console.WriteLine(p);
 102                                                 continue;
 103                                         }
 104
 105                                 IDiffItem a = new DiffItemNull();
 106                                 IDiffItem b = new DiffItemNull();
 107
 108                                 string tnameA = null;
 109                                 string tnameB = null;
 110
 111                                 if (((change.ChangeType & ChangeType.Add) != ChangeType.Add) &&
 112                                                 (itemList.ContainsKey(change.Item.ItemId)))
 113                                         {
 114                                                 Item itemA = itemList[change.Item.ItemId];
 115
 116                                                 tnameA = Path.GetTempFileName();
 117                                                 itemA.DownloadFile(tnameA);
 118
 119                                                 a = new DiffItemLocalFile(tnameA, itemA.Encoding,
 120                                                                                                                                                         changeset.CreationDate, true);
 121                                         }
 122
 123                                 if ((change.ChangeType & ChangeType.Delete) != ChangeType.Delete)
 124                                         {
 125                                                 tnameB = Path.GetTempFileName();
 126                                                 change.Item.DownloadFile(tnameB);
 127
 128                                                 b = new DiffItemLocalFile(tnameB, change.Item.Encoding,
 129                                                                                                                                                         changeset.CreationDate, true);
 130                                         }
 131
 132                                 diffOpts.TargetLabel = versionSpec.DisplayString;
 133                                 Difference.DiffFiles(vcs, a, b, diffOpts, p, true);
 134
 135                                 if (!String.IsNullOrEmpty(tnameA))
 136                                         File.Delete(tnameA);
 137
 138                                 if (!String.IsNullOrEmpty(tnameB))
 139                                         File.Delete(tnameB);
 140                         }
 141         }
 142 }