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/*******************************************************************************
* Copyright (C) 2011, Dariusz Luksza <dariusz@luksza.org>
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.egit.core.synchronize;
import static org.eclipse.compare.structuremergeviewer.Differencer.RIGHT;
import static org.eclipse.egit.core.synchronize.GitCommitsModelCache.calculateAndSetChangeKind;
import static org.eclipse.jgit.treewalk.filter.TreeFilter.ANY_DIFF;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.egit.core.Activator;
import org.eclipse.egit.core.synchronize.GitCommitsModelCache.Change;
import org.eclipse.jgit.dircache.DirCacheIterator;
import org.eclipse.jgit.lib.AbbreviatedObjectId;
import org.eclipse.jgit.lib.MutableObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.AndTreeFilter;
import org.eclipse.jgit.treewalk.filter.NotIgnoredFilter;
/**
* Builds list of working tree changes.
*/
public class WorkingTreeChangeCache {
/**
* @param repo
* with should be scanned
* @return list of changes in working tree
*/
public static Map<String, Change> build(Repository repo) {
TreeWalk tw = new TreeWalk(repo);
try {
tw.addTree(new FileTreeIterator(repo));
tw.addTree(new DirCacheIterator(repo.readDirCache()));
tw.setFilter(AndTreeFilter.create(new NotIgnoredFilter(0), ANY_DIFF));
tw.setRecursive(true);
Map<String, Change> result = new HashMap<String, Change>();
MutableObjectId idBuf = new MutableObjectId();
while (tw.next()) {
Change change = new Change();
change.name = tw.getNameString();
tw.getObjectId(idBuf, 0);
change.objectId = AbbreviatedObjectId.fromObjectId(idBuf);
tw.getObjectId(idBuf, 1);
change.remoteObjectId = AbbreviatedObjectId.fromObjectId(idBuf);
calculateAndSetChangeKind(RIGHT, change);
result.put(tw.getPathString(), change);
}
tw.release();
return result;
} catch (IOException e) {
Activator.error(e.getMessage(), e);
return new HashMap<String, GitCommitsModelCache.Change>(0);
}
}
}
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