1 /*******************************************************************************
2  * Copyright (c) 2000, 2007 IBM Corporation and others.
3  *
4  * This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License 2.0
6  * which accompanies this distribution, and is available at
7  * https://www.eclipse.org/legal/epl-2.0/
8  *
9  * SPDX-License-Identifier: EPL-2.0
10  *
11  * Contributors:
12  *     IBM Corporation - initial API and implementation
13  *******************************************************************************/
14 package org.eclipse.team.internal.ccvs.core.client;
15 
16 
17 import org.eclipse.core.runtime.IProgressMonitor;
18 import org.eclipse.core.runtime.IStatus;
19 import org.eclipse.team.internal.ccvs.core.*;
20 import org.eclipse.team.internal.ccvs.core.CVSException;
21 import org.eclipse.team.internal.ccvs.core.ICVSResource;
22 import org.eclipse.team.internal.ccvs.core.client.listeners.ICommandOutputListener;
23 import org.eclipse.team.internal.ccvs.core.connection.CVSServerException;
24 
25 /**
26  * Runs the CVS diff command.
27  */
28 public class Diff extends Command {
29 	/*** Local options: specific to diff ***/
30 	public static final LocalOption UNIFIED_FORMAT = new LocalOption("-u"); //$NON-NLS-1$
31 	public static final LocalOption CONTEXT_FORMAT = new LocalOption("-c"); //$NON-NLS-1$
32 	public static final LocalOption INCLUDE_NEWFILES = new LocalOption("-N"); //$NON-NLS-1$
33 	public static final LocalOption BRIEF = new LocalOption("--brief"); //$NON-NLS-1$
34 
Diff()35 	protected Diff() { }
getRequestId()36 	protected String getRequestId() {
37 		return "diff"; //$NON-NLS-1$
38 	}
39 
40 	/**
41 	 * Overwritten to throw the CVSDiffException if the server returns an error, because it just does
42 	 * so when there is a difference between the checked files.
43 	 */
doExecute(Session session, GlobalOption[] globalOptions, LocalOption[] localOptions, String[] arguments, ICommandOutputListener listener, IProgressMonitor monitor)44 	protected IStatus doExecute(Session session, GlobalOption[] globalOptions, LocalOption[] localOptions,
45 								String[] arguments, ICommandOutputListener listener, IProgressMonitor monitor) throws CVSException {
46 		try {
47 			IStatus status = super.doExecute(session, globalOptions, localOptions, arguments, listener, monitor);
48 			if (status.getCode() == CVSStatus.SERVER_ERROR) {
49 				if (status.isMultiStatus()) {
50 					IStatus[] children = status.getChildren();
51 					for (IStatus child : children) {
52 						if (child.getMessage().contains("[diff aborted]")) { //$NON-NLS-1$
53 							throw new CVSServerException(status);
54 						}
55 					}
56 				}
57 			}
58 			return status;
59 		} catch (CVSServerException e) {
60 			if (e.containsErrors()) throw e;
61 			return e.getStatus();
62 		}
63 	}
64 
sendLocalResourceState(Session session, GlobalOption[] globalOptions, LocalOption[] localOptions, ICVSResource[] resources, IProgressMonitor monitor)65 	protected ICVSResource[] sendLocalResourceState(Session session, GlobalOption[] globalOptions,
66 		LocalOption[] localOptions, ICVSResource[] resources, IProgressMonitor monitor)
67 		throws CVSException {
68 
69 		checkResourcesManaged(session, resources);
70 		DiffStructureVisitor visitor = new DiffStructureVisitor(session, localOptions);
71 		visitor.visit(session, resources, monitor);
72 		return resources;
73 	}
74 
getServerErrorMessage()75 	protected String getServerErrorMessage() {
76 		return CVSMessages.Diff_serverError;
77 	}
78 }
79