don't barf when diffing binary files
[tfs.git] / class / Microsoft.TeamFoundation.VersionControl.Client / DiffItemVersionedFile.cs
blob53829e8e51a59c5a300aad8ca4d5f6aa8cd52a43
1 //
2 // Microsoft.TeamFoundation.VersionControl.Client.DiffItemVersionedFile
3 //
4 // Authors:
5 // Joel Reed (joelwreed@gmail.com)
6 //
7 // Copyright (C) 2007 Joel Reed
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.
29 using System;
30 using System.Collections;
31 using System.IO;
32 using System.Net;
33 using System.Text;
34 using System.Xml;
35 using System.Web.Services;
36 using Microsoft.TeamFoundation.VersionControl.Common;
38 namespace Microsoft.TeamFoundation.VersionControl.Client
40 public sealed class DiffItemVersionedFile : IDiffItem
42 private VersionControlServer versionControlServer;
43 private string label;
44 private Item item;
45 private VersionSpec versionSpec;
46 private int encoding;
48 public DiffItemVersionedFile(Item item, VersionSpec versionSpec)
50 this.versionControlServer = item.VersionControlServer;
51 this.item = item;
52 this.versionSpec = versionSpec;
53 this.label = item.ServerItem;
54 this.encoding = item.Encoding;
57 public DiffItemVersionedFile(VersionControlServer versionControl,
58 int itemId, int changeset, string displayPath)
60 this.versionControlServer = versionControl;
61 this.item = versionControl.GetItem(itemId, changeset);
62 this.encoding = item.Encoding;
63 this.label = displayPath;
66 public string GetFile ()
68 // this is a quite inefficient implementation, FIXME
69 string tname = Path.GetTempFileName();
70 item.DownloadFile(tname);
72 string file;
73 using (StreamReader sr = new StreamReader(tname))
75 file = sr.ReadToEnd();
78 File.Delete(tname);
80 // tfs doesn't seem to be very adept at identifying binary files
81 // so help out a little
82 if (DiffItemUtil.IsBinary(file)) encoding = RepositoryConstants.EncodingBinary;
84 return file;
87 public bool IsTemporary
89 get { return true; }
92 public string Label
94 get { return label; }
95 set { label = value; }
98 public int GetEncoding()
100 return encoding;