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/*******************************************************************************
* Copyright (c) 2000, 2010 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ccvs.ui.actions;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.team.internal.ccvs.core.*;
import org.eclipse.team.internal.ccvs.core.client.*;
import org.eclipse.team.internal.ccvs.core.client.Command.LocalOption;
import org.eclipse.team.internal.ccvs.core.client.Command.QuietOption;
import org.eclipse.team.internal.ccvs.core.connection.CVSRepositoryLocation;
import org.eclipse.team.internal.ccvs.core.connection.CVSServerException;
import org.eclipse.team.internal.ccvs.core.resources.CVSWorkspaceRoot;
import org.eclipse.team.internal.ccvs.core.syncinfo.FolderSyncInfo;
import org.eclipse.team.internal.ccvs.core.util.KnownRepositories;
import org.eclipse.team.internal.ccvs.ui.CVSUIMessages;
import org.eclipse.team.internal.ccvs.ui.Policy;
import org.eclipse.team.internal.ccvs.ui.ResizableWizardDialog;
import org.eclipse.team.internal.ccvs.ui.wizards.RestoreFromRepositoryWizard;
/**
* RestoreFromRepositoryAction allows to restore a file that has previously been
* deleted from the CVS repository.
*/
public class RestoreFromRepositoryAction extends WorkspaceTraversalAction {
private static final String ATTIC = "Attic/"; //$NON-NLS-1$
private static final int ATTIC_LENGTH = ATTIC.length();
/*
* This class handles the output from "cvs log -R ..." where -R
* indicates that only the RCS file name is to be returned. Files
* that have been deleted will be in the Attic. The Attic may also
* contains files that exist on a branch but not in HEAD
*/
class AtticLogListener extends CommandOutputListener {
private static final String RCS_FILE_POSTFIX = ",v"; //$NON-NLS-1$
private static final String LOGGING_PREFIX = "Logging "; //$NON-NLS-1$
ICVSFolder currentFolder;
List<ICVSFile> atticFiles = new ArrayList<>();
@Override
public IStatus messageLine(
String line,
ICVSRepositoryLocation location,
ICVSFolder commandRoot,
IProgressMonitor monitor) {
// Extract the file name and path from the RCS path
// String filePath = line.substring(index);
// Find all RCS file names that contain "Attic"
int start = line.lastIndexOf(Session.SERVER_SEPARATOR);
if (start != -1) {
String fileName = line.substring(start + 1);
if (fileName.endsWith(RCS_FILE_POSTFIX)) {
fileName = fileName.substring(0, fileName.length() - RCS_FILE_POSTFIX.length());
}
if (currentFolder != null) {
try {
ICVSFile file = currentFolder.getFile(fileName);
if (!file.exists())
atticFiles.add(file);
} catch (CVSException e) {
return e.getStatus();
}
} else {
// Executed for every message line when in quiet mode.
// See bug 238334
CVSRepositoryLocation repo = (CVSRepositoryLocation)location;
// If exists, remove root directory
if (line.startsWith(repo.getRootDirectory())) {
String repoPath = line.substring(repo.getRootDirectory().length());
try {
String cmdRootRelativePath = commandRoot.getRepositoryRelativePath();
// Remove command root path
String path = repoPath.substring(repoPath.indexOf(cmdRootRelativePath) + cmdRootRelativePath.length());
// Remove filename at the end
String folderPath = path.substring(0, path.indexOf(fileName));
// The "raw" folderPath contains CVS's 'Attic/' segment when a file has been deleted from cvs.
if (folderPath.endsWith(ATTIC)) {
folderPath = folderPath.substring(0, folderPath.length() - ATTIC_LENGTH);
}
// A separator means the same as "current folder"
if (folderPath.equals(Session.SERVER_SEPARATOR))
folderPath = Session.CURRENT_LOCAL_FOLDER;
ICVSFolder folder = commandRoot.getFolder(folderPath);
ICVSFile file = folder.getFile(fileName);
if (!file.exists())
atticFiles.add(file);
} catch (CVSException e) {
return e.getStatus();
}
}
}
}
return OK;
}
@Override
public IStatus errorLine(
String line,
ICVSRepositoryLocation location,
ICVSFolder commandRoot,
IProgressMonitor monitor) {
CVSRepositoryLocation repo = (CVSRepositoryLocation)location;
String folderPath = repo.getServerMessageWithoutPrefix(line, SERVER_PREFIX);
if (folderPath != null) {
if (folderPath.startsWith(LOGGING_PREFIX)) {
folderPath = folderPath.substring(LOGGING_PREFIX.length());
try {
currentFolder = commandRoot.getFolder(folderPath);
} catch (CVSException e) {
return e.getStatus();
}
return OK;
}
}
return super.errorLine(line, location, commandRoot, monitor);
}
public ICVSFile[] getAtticFilePaths() {
return atticFiles.toArray(new ICVSFile[atticFiles.size()]);
}
}
/**
* @see org.eclipse.team.internal.ccvs.ui.actions.CVSAction#execute(org.eclipse.jface.action.IAction)
*/
@Override
protected void execute(IAction action) throws InvocationTargetException, InterruptedException {
IContainer resource = (IContainer)getSelectedResources()[0];
ICVSFile[] files = fetchDeletedFiles(resource);
if (files == null) return;
if (files.length == 0) {
MessageDialog.openInformation(getShell(), CVSUIMessages.RestoreFromRepositoryAction_noFilesTitle, NLS.bind(CVSUIMessages.RestoreFromRepositoryAction_noFilesMessage, new String[] { resource.getName() })); //
return;
}
RestoreFromRepositoryWizard wizard = new RestoreFromRepositoryWizard(resource, files);
WizardDialog dialog = new ResizableWizardDialog(getShell(), wizard);
dialog.setMinimumPageSize(1000, 250);
dialog.open();
}
/**
* @see org.eclipse.team.internal.ui.actions.TeamAction#isEnabled()
*/
@Override
public boolean isEnabled() {
IResource[] resources = getSelectedResources();
if (resources.length != 1) return false;
if (resources[0].getType() == IResource.FILE) return false;
ICVSFolder folder = CVSWorkspaceRoot.getCVSFolderFor((IContainer)resources[0]);
try {
if (!folder.isCVSFolder()) return false;
} catch (CVSException e) {
return isEnabledForException(e);
}
return true;
}
private ICVSFile[] fetchDeletedFiles(final IContainer parent) {
final ICVSFile[][] files = new ICVSFile[1][0];
files[0] = null;
try {
run((IRunnableWithProgress) monitor -> {
try {
ICVSFolder folder = CVSWorkspaceRoot.getCVSFolderFor(parent);
FolderSyncInfo info = folder.getFolderSyncInfo();
ICVSRepositoryLocation location = KnownRepositories.getInstance().getRepository(info.getRoot());
files[0] = fetchFilesInAttic(location, folder, monitor);
} catch (CVSException e) {
throw new InvocationTargetException(e);
}
}, true, PROGRESS_DIALOG);
} catch (InvocationTargetException e) {
handle(e);
} catch (InterruptedException e) {
return null;
}
return files[0];
}
/*
* Fetch the RCS paths (minus the Attic segment) of all files in the Attic.
* This path includes the repository root path.
*/
private ICVSFile[] fetchFilesInAttic(ICVSRepositoryLocation location, ICVSFolder parent, IProgressMonitor monitor) throws CVSException {
monitor = Policy.monitorFor(monitor);
monitor.beginTask(null, 100);
AtticLogListener listener = new AtticLogListener();
Session session = new Session(location, parent, true /* output to console */);
session.open(Policy.subMonitorFor(monitor, 10), false /* read-only */);
try {
QuietOption quietness = CVSProviderPlugin.getPlugin().getQuietness();
try {
CVSProviderPlugin.getPlugin().setQuietness(Command.VERBOSE);
IStatus status = Command.LOG.execute(
session,
Command.NO_GLOBAL_OPTIONS,
new LocalOption[] { Log.RCS_FILE_NAMES_ONLY },
new ICVSResource[] { parent }, listener,
Policy.subMonitorFor(monitor, 90));
if (status.getCode() == CVSStatus.SERVER_ERROR) {
throw new CVSServerException(status);
}
} finally {
CVSProviderPlugin.getPlugin().setQuietness(quietness);
monitor.done();
}
} finally {
session.close();
}
return listener.getAtticFilePaths();
}
}
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