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/*******************************************************************************
* Copyright (c) 2011 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.subscriber;
import java.util.regex.Pattern;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.core.synchronize.SyncInfoFilter;
import org.eclipse.team.core.variants.IResourceVariant;
import org.eclipse.team.internal.core.subscribers.AbstractContentComparator;
import org.eclipse.team.internal.ui.synchronize.RegexDiffComparator;
/**
* Selects <code>SyncInfo</code> whose all diffs match the given pattern.
* This filter makes use of the <code>IStorage</code> provided by
* an <code>IResourceVariant</code> to obtain the remote contents.
* This means that the comparison may contact the server unless the contents
* were cached locally by a previous operation. The caching of remote
* contents is subscriber specific.
* <p>
* For folders, the comparison always returns <code>true</code>.
*
* @since 3.6
*/
public class RegexSyncInfoFilter extends SyncInfoFilter {
AbstractContentComparator criteria;
boolean ignoreWhiteSpace;
/**
* Create a filter that does not ignore whitespace.
*
* @param pattern
* regex pattern
*/
public RegexSyncInfoFilter(String pattern) {
this(false, pattern);
}
public RegexSyncInfoFilter(boolean ignoreWhitespace, String pattern) {
criteria = new RegexDiffComparator(Pattern.compile(pattern,
Pattern.DOTALL), ignoreWhitespace);
}
public boolean select(SyncInfo info, IProgressMonitor monitor) {
IResourceVariant remote = info.getRemote();
IResource local = info.getLocal();
if (local.getType() != IResource.FILE)
return true;
if (remote == null)
return !local.exists();
if (!local.exists())
return false;
return criteria.compare(local, remote, monitor);
}
}
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