tools/tf/DiffItemNull.cs

   1 using System;
   2 using System.IO;
   3 using System.Collections;
   4 using System.Collections.Generic;
   5 using System.Text;
   6 using Microsoft.TeamFoundation.Client;
   7 using Microsoft.TeamFoundation.VersionControl.Common;
   8 using Microsoft.TeamFoundation.VersionControl.Client;
   9
  10 public sealed class DiffItemNull : IDiffItem
  11 {
  12         private string label;
  13
  14         public DiffItemNull ()
  15                 {
  16                 }
  17
  18         public string GetFile ()
  19         {
  20                 return "";
  21         }
  22
  23         public bool IsTemporary
  24         {
  25                 get { return true; }
  26         }
  27
  28         public string Label
  29         {
  30                 get { return label; }
  31                 set { label = value; }
  32         }
  33
  34         public int GetEncoding()
  35         {
  36                 return Encoding.UTF8.CodePage;
  37         }
  38 }
  39
  40 class DiffHelper
  41 {
  42         static public void ShowChangeset(VersionControlServer vcs,
  43                                                                                                                                          ChangesetVersionSpec versionSpec,
  44                                                                                                                                          bool brief, DiffOptions diffOpts)
  45         {
  46                 int changesetId = versionSpec.ChangesetId;
  47                 Changeset changeset = vcs.GetChangeset(changesetId, true, true);
  48
  49                 // fetch all items in one fell swoop
  50                 List<int> ids = new List<int>();
  51                 foreach (Change change in changeset.Changes)
  52                         {
  53                                 // skip folders
  54                                 if (change.Item.ItemType == ItemType.Folder) continue;
  55                                 ids.Add(change.Item.ItemId);
  56                         }
  57
  58                 // find items in prior changeset
  59                 Item[] items = vcs.GetItems(ids.ToArray(), changesetId-1, true);
  60                 SortedList<int, Item> itemList = new SortedList<int, Item>();
  61                 foreach (Item item in items)
  62                         {
  63                                 // itemId of 0 means a null item, IOW file was added in this changeset
  64                                 // and missing in prior changeset
  65                                 if (item.ItemId == 0) continue;
  66                                 itemList.Add(item.ItemId, item);
  67                         }
  68
  69                 foreach (Change change in changeset.Changes)
  70                         {
  71                                 // skip folders
  72                                 if (change.Item.ItemType == ItemType.Folder) continue;
  73                                 string p = change.Item.ServerItem.Substring(2);
  74
  75                                 if (brief)
  76                                         {
  77                                                 Console.WriteLine(p);
  78                                                 continue;
  79                                         }
  80
  81                                 IDiffItem a = new DiffItemNull();
  82                                 IDiffItem b = new DiffItemNull();
  83
  84                                 string tnameA = null;
  85                                 string tnameB = null;
  86
  87                                 if (((change.ChangeType & ChangeType.Add) != ChangeType.Add) &&
  88                                                 (itemList.ContainsKey(change.Item.ItemId)))
  89                                         {
  90                                                 Item itemA = itemList[change.Item.ItemId];
  91
  92                                                 tnameA = Path.GetTempFileName();
  93                                                 itemA.DownloadFile(tnameA);
  94
  95                                                 a = new DiffItemLocalFile(tnameA, itemA.Encoding,
  96                                                                                                                                                         changeset.CreationDate, true);
  97                                         }
  98
  99                                 if ((change.ChangeType & ChangeType.Delete) != ChangeType.Delete)
 100                                         {
 101                                                 tnameB = Path.GetTempFileName();
 102                                                 change.Item.DownloadFile(tnameB);
 103
 104                                                 b = new DiffItemLocalFile(tnameB, change.Item.Encoding,
 105                                                                                                                                                         changeset.CreationDate, true);
 106                                         }
 107
 108                                 diffOpts.TargetLabel = versionSpec.DisplayString;
 109                                 Difference.DiffFiles(vcs, a, b, diffOpts, p, true);
 110
 111                                 if (!String.IsNullOrEmpty(tnameA))
 112                                         File.Delete(tnameA);
 113
 114                                 if (!String.IsNullOrEmpty(tnameB))
 115                                         File.Delete(tnameB);
 116                         }
 117         }
 118 }