bundles/org.eclipse.team.cvs.core/src/org/eclipse/team/internal/ccvs/core/client/listeners/UpdateListener.java - gerrit/platform/eclipse.platform.team - Git at Google

 /*******************************************************************************
  * 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 org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 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;
 import org.eclipse.team.internal.ccvs.core.client.Update;

 public class UpdateListener extends CommandOutputListener {

 	IUpdateMessageListener updateMessageListener;
 	boolean merging = false;

 	public UpdateListener(IUpdateMessageListener updateMessageListener) {
 		this.updateMessageListener = updateMessageListener;
 	}

 	public IStatus messageLine(String line, ICVSRepositoryLocation location, ICVSFolder commandRoot,
 		IProgressMonitor monitor) {
 		if (updateMessageListener == null) return OK;
 		if(line.startsWith("Merging differences")) { //$NON-NLS-1$
 			merging = true;
 		} else if(line.indexOf(' ')==1) {
 			// We have a message that indicates the type of update. The possible messages are
 			// defined by the prefix constants MLP_*.
 			String path = line.substring(2);
 			char changeType = line.charAt(0);

 			// calculate change type
 			int type = 0;
 			switch(changeType) {
 				case 'A': type = Update.STATE_ADDED_LOCAL; break; // new file locally that was added but not comitted to server yet
 				case '?': type = Update.STATE_UNKOWN; break; // new file locally but not added to server
 				case 'U': type = Update.STATE_REMOTE_CHANGES; break;  // remote changes to an unmodified local file
 				case 'R': type = Update.STATE_DELETED; break; // removed locally but still exists on the server
 				case 'M': type = Update.STATE_MODIFIED; break; // modified locally
 				case 'C': type = Update.STATE_CONFLICT; break;  // modified locally and on the server but cannot be auto-merged
 				case 'D': type = Update.STATE_DELETED; break;  // deleted locally but still exists on server
 				default: type = Update.STATE_NONE;
 			}

 			if (merging) {
 				// If we are merging the modified prefix is used both to show merges and
 				// local changes. We have to detect this case and use a more specific change
 				// type.
 				if (type == Update.STATE_MODIFIED)
 					type = Update.STATE_MERGEABLE_CONFLICT;
 				merging = false;
 			}
 			updateMessageListener.fileInformation(type, commandRoot, path);
 		}
 		return OK;
 	}

 	/**
 	 * This handler is used by the RemoteResource hierarchy to retrieve E messages
 	 * from the CVS server in order to determine the folders contained in a parent folder.
 	 *
 	 * WARNING: This class parses the message output to determine the state of files in the
 	 * repository. Unfortunately, these messages seem to be customizable on a server by server basis.
 	 *
 	 * Here's a list of responses we expect in various situations:
 	 *
 	 * Directory exists remotely:
 	 *    cvs server: Updating folder1/folder2
 	 * Directory doesn't exist remotely:
 	 *    cvs server: skipping directory folder1/folder2
 	 * New (or unknown) remote directory
 	 *    cvs server: New Directory folder1/folder2
 	 * File removed remotely
 	 *    cvs server: folder1/file.ext is no longer in the repository
 	 *    cvs server: warning: folder1/file.ext is not (any longer) pertinent
 	 * Locally added file was added remotely as well
 	 *    cvs server: conflict: folder/file.ext created independently by second party
 	 * File removed locally and modified remotely
 	 *    cvs server: conflict: removed file.txt was modified by second party
 	 * File modified locally but removed remotely
 	 *    cvs server: conflict: file.txt is modified but no longer in the repository
 	 * Ignored Messages
 	 *    cvs server: cannot open directory ...
 	 *    cvs server: nothing known about ...
 	 * Tag error that really means there are no files in a directory
 	 *    cvs [server aborted]: no such tag
 	 * Merge contained conflicts
 	 *    rcsmerge: warning: conflicts during merge
 	 */
 	public IStatus errorLine(String line, ICVSRepositoryLocation location, ICVSFolder commandRoot,
 		IProgressMonitor monitor) {

 		try {
 			String serverMessage = getServerMessage(line, location);
 			if (serverMessage != null) {
 				// Strip the prefix from the line
 				String message = serverMessage;
 				if (message.startsWith("Updating")) { //$NON-NLS-1$
 					if (updateMessageListener != null) {
 						String path = message.substring(9);
 						updateMessageListener.directoryInformation(commandRoot, path, false);
 					}
 					return OK;
 				} else if (message.startsWith("skipping directory")) { //$NON-NLS-1$
 					if (updateMessageListener != null) {
 						String path = message.substring(18).trim();
 						updateMessageListener.directoryDoesNotExist(commandRoot, path);
 					}
 					return OK;
 				} else if (message.startsWith("New directory")) { //$NON-NLS-1$
 					if (updateMessageListener != null) {
 						String path = message.substring(15, message.lastIndexOf('\''));
 						updateMessageListener.directoryInformation(commandRoot, path, true);
 					}
 					return OK;
 				} else if (message.endsWith("is no longer in the repository")) { //$NON-NLS-1$
 					if (updateMessageListener != null) {
 						String filename = message.substring(0, message.length() - 31);
 						updateMessageListener.fileDoesNotExist(commandRoot, filename);
 					}
 					return OK;
 				} else if (message.startsWith("conflict:")) { //$NON-NLS-1$
 					/*
 					 * We can get the following conflict warnings
 					 *    cvs server: conflict: folder/file.ext created independently by second party
 					 *    cvs server: conflict: removed file.txt was modified by second party
 					 *    cvs server: conflict: file.txt is modified but no longer in the repository
 					 * If we get the above line, we have conflicting additions or deletions and we can expect a server error.
 					 * We still get "C foler/file.ext" so we don't need to do anything else (except in the remotely deleted case)
 					 */
 					if (updateMessageListener != null) {
 						if (message.endsWith("is modified but no longer in the repository")) { //$NON-NLS-1$
 							// The "C foler/file.ext" will come after this so if whould be ignored!
 							String filename = message.substring(10, message.length() - 44);
 							updateMessageListener.fileDoesNotExist(commandRoot, filename);
 						}
 					}
 					return new CVSStatus(CVSStatus.WARNING, CVSStatus.CONFLICT, commandRoot, line);
 				} else if (message.startsWith("warning:")) { //$NON-NLS-1$
 					/*
 					 * We can get the following conflict warnings
 					 *    cvs server: warning: folder1/file.ext is not (any longer) pertinent
 					 * If we get the above line, we have local changes to a remotely deleted file.
 					 */
 					if (updateMessageListener != null) {
 						if (message.endsWith("is not (any longer) pertinent")) { //$NON-NLS-1$
 							String filename = message.substring(9, message.length() - 30);
 							updateMessageListener.fileDoesNotExist(commandRoot, filename);
 						}
 					}
 					return new CVSStatus(CVSStatus.WARNING, CVSStatus.CONFLICT, commandRoot, line);
 				} else if (message.startsWith("conflicts")) { //$NON-NLS-1$
 					// This line is info only. The server doesn't report an error.
 					return new CVSStatus(IStatus.INFO, CVSStatus.CONFLICT, commandRoot, line);
 				} else if (!message.startsWith("cannot open directory") //$NON-NLS-1$
 						&& !message.startsWith("nothing known about")) { //$NON-NLS-1$
 					return super.errorLine(line, location, commandRoot, monitor);
 				}
 			} else {
 				String serverAbortedMessage = getServerAbortedMessage(line, location);
 				if (serverAbortedMessage != null) {
 					// Strip the prefix from the line
 					String message = serverAbortedMessage;
 					if (message.startsWith("no such tag")) { //$NON-NLS-1$
 						// This is reported from CVS when a tag is used on the update there are no files in the directory
 						// To get the folders, the update request should be re-issued for HEAD
 						return new CVSStatus(CVSStatus.WARNING, CVSStatus.NO_SUCH_TAG, commandRoot, line);
 					} else {
 						return super.errorLine(line, location, commandRoot, monitor);
 					}
 				} else if (line.equals("rcsmerge: warning: conflicts during merge")) { //$NON-NLS-1$
 					// There were conflicts in the merge
 					return new CVSStatus(CVSStatus.WARNING, CVSStatus.CONFLICT, commandRoot, line);
 				}
 			}
 		} catch (StringIndexOutOfBoundsException e) {
 			// Something went wrong in the parsing of the message.
 			// Return a status indicating the problem
 			if (CVSProviderPlugin.getPlugin().isDebugging()) {
 				System.out.println("Error parsing E line: " + line); //$NON-NLS-1$
 			}
 			return new CVSStatus(CVSStatus.ERROR, CVSStatus.ERROR_LINE_PARSE_FAILURE, commandRoot, line);
 		}
 		return super.errorLine(line, location, commandRoot, monitor);
 	}

 }
	/*******************************************************************************
	* 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 org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	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;
	import org.eclipse.team.internal.ccvs.core.client.Update;

	public class UpdateListener extends CommandOutputListener {

	IUpdateMessageListener updateMessageListener;
	boolean merging = false;

	public UpdateListener(IUpdateMessageListener updateMessageListener) {
	this.updateMessageListener = updateMessageListener;
	}

	public IStatus messageLine(String line, ICVSRepositoryLocation location, ICVSFolder commandRoot,
	IProgressMonitor monitor) {
	if (updateMessageListener == null) return OK;
	if(line.startsWith("Merging differences")) { //$NON-NLS-1$
	merging = true;
	} else if(line.indexOf(' ')==1) {
	// We have a message that indicates the type of update. The possible messages are
	// defined by the prefix constants MLP_*.
	String path = line.substring(2);
	char changeType = line.charAt(0);

	// calculate change type
	int type = 0;
	switch(changeType) {
	case 'A': type = Update.STATE_ADDED_LOCAL; break; // new file locally that was added but not comitted to server yet
	case '?': type = Update.STATE_UNKOWN; break; // new file locally but not added to server
	case 'U': type = Update.STATE_REMOTE_CHANGES; break; // remote changes to an unmodified local file
	case 'R': type = Update.STATE_DELETED; break; // removed locally but still exists on the server
	case 'M': type = Update.STATE_MODIFIED; break; // modified locally
	case 'C': type = Update.STATE_CONFLICT; break; // modified locally and on the server but cannot be auto-merged
	case 'D': type = Update.STATE_DELETED; break; // deleted locally but still exists on server
	default: type = Update.STATE_NONE;
	}

	if (merging) {
	// If we are merging the modified prefix is used both to show merges and
	// local changes. We have to detect this case and use a more specific change
	// type.
	if (type == Update.STATE_MODIFIED)
	type = Update.STATE_MERGEABLE_CONFLICT;
	merging = false;
	}
	updateMessageListener.fileInformation(type, commandRoot, path);
	}
	return OK;
	}

	/**
	* This handler is used by the RemoteResource hierarchy to retrieve E messages
	* from the CVS server in order to determine the folders contained in a parent folder.
	*
	* WARNING: This class parses the message output to determine the state of files in the
	* repository. Unfortunately, these messages seem to be customizable on a server by server basis.
	*
	* Here's a list of responses we expect in various situations:
	*
	* Directory exists remotely:
	* cvs server: Updating folder1/folder2
	* Directory doesn't exist remotely:
	* cvs server: skipping directory folder1/folder2
	* New (or unknown) remote directory
	* cvs server: New Directory folder1/folder2
	* File removed remotely
	* cvs server: folder1/file.ext is no longer in the repository
	* cvs server: warning: folder1/file.ext is not (any longer) pertinent
	* Locally added file was added remotely as well
	* cvs server: conflict: folder/file.ext created independently by second party
	* File removed locally and modified remotely
	* cvs server: conflict: removed file.txt was modified by second party
	* File modified locally but removed remotely
	* cvs server: conflict: file.txt is modified but no longer in the repository
	* Ignored Messages
	* cvs server: cannot open directory ...
	* cvs server: nothing known about ...
	* Tag error that really means there are no files in a directory
	* cvs [server aborted]: no such tag
	* Merge contained conflicts
	* rcsmerge: warning: conflicts during merge
	*/
	public IStatus errorLine(String line, ICVSRepositoryLocation location, ICVSFolder commandRoot,
	IProgressMonitor monitor) {

	try {
	String serverMessage = getServerMessage(line, location);
	if (serverMessage != null) {
	// Strip the prefix from the line
	String message = serverMessage;
	if (message.startsWith("Updating")) { //$NON-NLS-1$
	if (updateMessageListener != null) {
	String path = message.substring(9);
	updateMessageListener.directoryInformation(commandRoot, path, false);
	}
	return OK;
	} else if (message.startsWith("skipping directory")) { //$NON-NLS-1$
	if (updateMessageListener != null) {
	String path = message.substring(18).trim();
	updateMessageListener.directoryDoesNotExist(commandRoot, path);
	}
	return OK;
	} else if (message.startsWith("New directory")) { //$NON-NLS-1$
	if (updateMessageListener != null) {
	String path = message.substring(15, message.lastIndexOf('\''));
	updateMessageListener.directoryInformation(commandRoot, path, true);
	}
	return OK;
	} else if (message.endsWith("is no longer in the repository")) { //$NON-NLS-1$
	if (updateMessageListener != null) {
	String filename = message.substring(0, message.length() - 31);
	updateMessageListener.fileDoesNotExist(commandRoot, filename);
	}
	return OK;
	} else if (message.startsWith("conflict:")) { //$NON-NLS-1$
	/*
	* We can get the following conflict warnings
	* cvs server: conflict: folder/file.ext created independently by second party
	* cvs server: conflict: removed file.txt was modified by second party
	* cvs server: conflict: file.txt is modified but no longer in the repository
	* If we get the above line, we have conflicting additions or deletions and we can expect a server error.
	* We still get "C foler/file.ext" so we don't need to do anything else (except in the remotely deleted case)
	*/
	if (updateMessageListener != null) {
	if (message.endsWith("is modified but no longer in the repository")) { //$NON-NLS-1$
	// The "C foler/file.ext" will come after this so if whould be ignored!
	String filename = message.substring(10, message.length() - 44);
	updateMessageListener.fileDoesNotExist(commandRoot, filename);
	}
	}
	return new CVSStatus(CVSStatus.WARNING, CVSStatus.CONFLICT, commandRoot, line);
	} else if (message.startsWith("warning:")) { //$NON-NLS-1$
	/*
	* We can get the following conflict warnings
	* cvs server: warning: folder1/file.ext is not (any longer) pertinent
	* If we get the above line, we have local changes to a remotely deleted file.
	*/
	if (updateMessageListener != null) {
	if (message.endsWith("is not (any longer) pertinent")) { //$NON-NLS-1$
	String filename = message.substring(9, message.length() - 30);
	updateMessageListener.fileDoesNotExist(commandRoot, filename);
	}
	}
	return new CVSStatus(CVSStatus.WARNING, CVSStatus.CONFLICT, commandRoot, line);
	} else if (message.startsWith("conflicts")) { //$NON-NLS-1$
	// This line is info only. The server doesn't report an error.
	return new CVSStatus(IStatus.INFO, CVSStatus.CONFLICT, commandRoot, line);
	} else if (!message.startsWith("cannot open directory") //$NON-NLS-1$
	&& !message.startsWith("nothing known about")) { //$NON-NLS-1$
	return super.errorLine(line, location, commandRoot, monitor);
	}
	} else {
	String serverAbortedMessage = getServerAbortedMessage(line, location);
	if (serverAbortedMessage != null) {
	// Strip the prefix from the line
	String message = serverAbortedMessage;
	if (message.startsWith("no such tag")) { //$NON-NLS-1$
	// This is reported from CVS when a tag is used on the update there are no files in the directory
	// To get the folders, the update request should be re-issued for HEAD
	return new CVSStatus(CVSStatus.WARNING, CVSStatus.NO_SUCH_TAG, commandRoot, line);
	} else {
	return super.errorLine(line, location, commandRoot, monitor);
	}
	} else if (line.equals("rcsmerge: warning: conflicts during merge")) { //$NON-NLS-1$
	// There were conflicts in the merge
	return new CVSStatus(CVSStatus.WARNING, CVSStatus.CONFLICT, commandRoot, line);
	}
	}
	} catch (StringIndexOutOfBoundsException e) {
	// Something went wrong in the parsing of the message.
	// Return a status indicating the problem
	if (CVSProviderPlugin.getPlugin().isDebugging()) {
	System.out.println("Error parsing E line: " + line); //$NON-NLS-1$
	}
	return new CVSStatus(CVSStatus.ERROR, CVSStatus.ERROR_LINE_PARSE_FAILURE, commandRoot, line);
	}
	return super.errorLine(line, location, commandRoot, monitor);
	}

	}