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 namespace Gtk.TeamFoundation
  39 {
  40         internal sealed class DiffItemNull : IDiffItem
  41         {
  42                 private string label;
  43
  44                 public DiffItemNull ()
  45                         {
  46                         }
  47
  48                 public string GetFile ()
  49                 {
  50                         return "";
  51                 }
  52
  53                 public bool IsTemporary
  54                 {
  55                         get { return true; }
  56                 }
  57
  58                 public string Label
  59                 {
  60                         get { return label; }
  61                         set { label = value; }
  62                 }
  63
  64                 public int GetEncoding()
  65                 {
  66                         return Encoding.UTF8.CodePage;
  67                 }
  68         }
  69
  70         public class DiffHelper
  71         {
  72                 static public void ShowChangeset(VersionControlServer vcs,
  73                                                                                                                                                  ChangesetVersionSpec versionSpec,
  74                                                                                                                                                  bool brief, DiffOptions diffOpts)
  75                 {
  76                         int changesetId = versionSpec.ChangesetId;
  77                         Changeset changeset = vcs.GetChangeset(changesetId, true, true);
  78
  79                         // fetch all items in one fell swoop
  80                         List<int> ids = new List<int>();
  81                         foreach (Change change in changeset.Changes)
  82                                 ids.Add(change.Item.ItemId);
  83
  84                         // find items in prior changeset
  85                         Microsoft.TeamFoundation.VersionControl.Client.Item[] items = vcs.GetItems(ids.ToArray(), changesetId-1, true);
  86                         SortedList<int, Microsoft.TeamFoundation.VersionControl.Client.Item> itemList = new SortedList<int, Microsoft.TeamFoundation.VersionControl.Client.Item>();
  87                         foreach (Microsoft.TeamFoundation.VersionControl.Client.Item item in items)
  88                                 {
  89                                         // itemId of 0 means a null item, IOW file was added in this changeset
  90                                         // and missing in prior changeset
  91                                         if (item.ItemId == 0) continue;
  92                                         itemList.Add(item.ItemId, item);
  93                                 }
  94
  95                         foreach (Change change in changeset.Changes)
  96                                 {
  97                                         // skip folders
  98                                         if (change.Item.ItemType == ItemType.Folder) continue;
  99                                         string p = change.Item.ServerItem.Substring(2);
 100
 101                                         if (brief)
 102                                                 {
 103                                                         Console.WriteLine(p);
 104                                                         continue;
 105                                                 }
 106
 107                                         IDiffItem a = new DiffItemNull();
 108                                         IDiffItem b = new DiffItemNull();
 109
 110                                         string tnameA = null;
 111                                         string tnameB = null;
 112
 113                                         if (((change.ChangeType & ChangeType.Add) != ChangeType.Add) &&
 114                                                         (itemList.ContainsKey(change.Item.ItemId)))
 115                                                 {
 116                                                         Microsoft.TeamFoundation.VersionControl.Client.Item itemA = itemList[change.Item.ItemId];
 117
 118                                                         tnameA = Path.GetTempFileName();
 119                                                         itemA.DownloadFile(tnameA);
 120
 121                                                         a = new DiffItemLocalFile(tnameA, itemA.Encoding,
 122                                                                                                                                                                 changeset.CreationDate, true);
 123                                                 }
 124
 125                                         if ((change.ChangeType & ChangeType.Delete) != ChangeType.Delete)
 126                                                 {
 127                                                         tnameB = Path.GetTempFileName();
 128                                                         change.Item.DownloadFile(tnameB);
 129
 130                                                         b = new DiffItemLocalFile(tnameB, change.Item.Encoding,
 131                                                                                                                                                                 changeset.CreationDate, true);
 132                                                 }
 133
 134                                         diffOpts.TargetLabel = versionSpec.DisplayString;
 135                                         Difference.DiffFiles(vcs, a, b, diffOpts, p, true);
 136
 137                                         if (!String.IsNullOrEmpty(tnameA))
 138                                                 File.Delete(tnameA);
 139
 140                                         if (!String.IsNullOrEmpty(tnameB))
 141                                                 File.Delete(tnameB);
 142                                 }
 143                 }
 144         }
 145 }