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/*******************************************************************************
* Copyright (C) 2010, 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.ui.internal.synchronize.model;
import static org.eclipse.jgit.lib.ObjectId.zeroId;
import java.io.IOException;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.ITypedElement;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.egit.ui.UIText;
import org.eclipse.egit.ui.internal.CompareUtils;
import org.eclipse.egit.ui.internal.FileRevisionTypedElement;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.osgi.util.NLS;
/**
* Git blob object representation in Git ChangeSet
*/
public class GitModelBlob extends GitModelCommit {
private final String name;
private final ObjectId baseId;
private final ObjectId remoteId;
private final ObjectId ancestorId;
private final IPath location;
private final String gitPath;
private static final GitModelObject[] empty = new GitModelObject[0];
/**
*
* @param parent
* parent of this object
* @param commit
* remote commit
* @param ancestorId
* common ancestor id
* @param baseId
* id of base object variant
* @param remoteId
* id of remote object variant
* @param name
* human readable blob name (file name)
* @throws IOException
*/
public GitModelBlob(GitModelObject parent, RevCommit commit,
ObjectId ancestorId, ObjectId baseId, ObjectId remoteId, String name)
throws IOException {
super(parent, commit);
this.name = name;
this.baseId = baseId;
this.remoteId = remoteId;
this.ancestorId = ancestorId;
location = getParent().getLocation().append(name);
gitPath = Repository.stripWorkDir(getRepository().getWorkTree(),
getLocation().toFile());
}
@Override
public GitModelObject[] getChildren() {
return empty;
}
@Override
public String getName() {
return name;
}
@Override
public IProject[] getProjects() {
return getParent().getProjects();
}
@Override
public IPath getLocation() {
return location;
}
@Override
public boolean isContainer() {
return false;
}
@Override
public ITypedElement getAncestor() {
if (objectExist(getAncestorCommit(), ancestorId))
return CompareUtils.getFileRevisionTypedElement(gitPath,
getAncestorCommit(), getRepository(), ancestorId);
return null;
}
@Override
public ITypedElement getLeft() {
return CompareUtils.getFileRevisionTypedElement(gitPath,
getRemoteCommit(), getRepository(), remoteId);
}
@Override
public ITypedElement getRight() {
return CompareUtils.getFileRevisionTypedElement(gitPath,
getBaseCommit(), getRepository(), baseId);
}
@Override
protected String getAncestorSha1() {
return ancestorId.getName();
}
@Override
protected String getBaseSha1() {
return baseId.getName();
}
@Override
protected String getRemoteSha1() {
return remoteId.getName();
}
private boolean objectExist(RevCommit commit, ObjectId id) {
return commit != null && id != null && !id.equals(zeroId());
}
public void prepareInput(CompareConfiguration configuration,
IProgressMonitor monitor) throws CoreException {
configuration.setLeftLabel(getFileRevisionLabel(getLeft()));
configuration.setRightLabel(getFileRevisionLabel(getRight()));
}
private String getFileRevisionLabel(ITypedElement element) {
if (element instanceof FileRevisionTypedElement) {
FileRevisionTypedElement castElement = (FileRevisionTypedElement)element;
return NLS.bind(UIText.GitCompareFileRevisionEditorInput_RevisionLabel,
new Object[]{element.getName(),
CompareUtils.truncatedRevision(castElement.getContentIdentifier()),
castElement.getAuthor()});
}
else
return element.getName();
}
}
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