1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ccvs.core.client.listeners;
import java.util.Map;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.team.internal.ccvs.core.CVSException;
import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin;
import org.eclipse.team.internal.ccvs.core.CVSStatus;
import org.eclipse.team.internal.ccvs.core.ICVSFolder;
import org.eclipse.team.internal.ccvs.core.ICVSRepositoryLocation;
import org.eclipse.team.internal.ccvs.core.client.CommandOutputListener;
/**
* This class interprets the output of "cvs diff --brief ..." in order to get the revisions
* of two compared versions of a project or folder.
*/
public class CompareDiffListener extends CommandOutputListener {
private static ServerMessageLineMatcher LOCAL_FILE_MATCHER;
private static ServerMessageLineMatcher REMOTE_FILE_MATCHER;
private static ServerMessageLineMatcher REVISION_LINE_MATCHER;
static {
try {
LOCAL_FILE_MATCHER = new ServerMessageLineMatcher(
"Index: (localFile:.*:localFile)", new String[] {"localFile"});
REMOTE_FILE_MATCHER = new ServerMessageLineMatcher(
"RCS file: (remoteFile:.*:remoteFile),v", new String[] {"remoteFile"});
REVISION_LINE_MATCHER = new ServerMessageLineMatcher(
"diff .* -r(leftRevision:.*:leftRevision) -r(rightRevision:.*:rightRevision)", new String[] {"leftRevision", "rightRevision"});
} catch (CVSException e) {
// This is serious as the listener will not function properly
CVSProviderPlugin.log(e);
LOCAL_FILE_MATCHER = null;
REMOTE_FILE_MATCHER = null;
REVISION_LINE_MATCHER = null;
}
}
private String localFilePath, remoteFilePath, leftRevision, rightRevision;
private IFileDiffListener listener;
public interface IFileDiffListener {
public void fileDiff(
String localFilePath,
String remoteFilePath,
String leftRevision,
String rightRevision);
}
public CompareDiffListener(IFileDiffListener listener) {
this.listener = listener;
}
public IStatus messageLine(
String line,
ICVSRepositoryLocation location,
ICVSFolder commandRoot,
IProgressMonitor monitor) {
// ignore any server messages
if (getServerMessage(line, location) != null) {
return OK;
}
Map map = LOCAL_FILE_MATCHER.processServerMessage(line);
if (map != null) {
localFilePath = (String)map.get("localFile");
return OK;
}
map = REMOTE_FILE_MATCHER.processServerMessage(line);
if (map != null) {
remoteFilePath = (String)map.get("remoteFile");
return OK;
}
map = REVISION_LINE_MATCHER.processServerMessage(line);
if (map != null) {
leftRevision = (String)map.get("leftRevision");
rightRevision = (String)map.get("rightRevision");
if (localFilePath == null || remoteFilePath == null) {
return new CVSStatus(IStatus.ERROR, "Unsupported message sequence received while comparing using CVS diff command");
}
listener.fileDiff(localFilePath, remoteFilePath, leftRevision, rightRevision);
localFilePath = remoteFilePath = leftRevision = rightRevision = null;
return OK;
}
// Ignore all other lines
return OK;
}
private IStatus handleUnknownDiffFormat(String line) {
return new CVSStatus(IStatus.ERROR, "Unknown message format received while comparing using CVS diff command: {0}" + line);
}
public IStatus errorLine(
String line,
ICVSRepositoryLocation location,
ICVSFolder commandRoot,
IProgressMonitor monitor) {
// ignore server messages for now - this is used only with the diff
// request and the errors can be safely ignored.
if (getServerMessage(line, location) != null) {
return OK;
}
return super.errorLine(line, location, commandRoot, monitor);
}
}
|
