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/*******************************************************************************
* Copyright (C) 2011, Philipp Thun <philipp.thun@sap.com>
* Copyright (C) 2011, Dariusz Luksza <dariusz@luksza.org>
* Copyright (C) 2011, Christian Halstrick <christian.halstrick@sap.com>
*
* 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.decorators;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import java.util.WeakHashMap;
import org.eclipse.egit.core.internal.indexdiff.IndexDiffData;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.GitLabels;
import org.eclipse.jgit.lib.BranchTrackingStatus;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.jgit.revwalk.RevCommit;
/**
* Helper class to create decoratable resources
*
* @see IDecoratableResource
*/
public class DecoratableResourceHelper {
/**
* Maps repository to the branch state. The entries are removed each time
* {@link IndexDiffData} changes
*
* @see GitLightweightDecorator#indexDiffChanged(Repository,
* org.eclipse.egit.core.internal.indexdiff.IndexDiffData)
*/
private static Map<Repository, String> branchState = Collections
.synchronizedMap(new WeakHashMap<Repository, String>());
static String getRepositoryName(Repository repository) {
String repoName = Activator.getDefault().getRepositoryUtil()
.getRepositoryName(repository);
RepositoryState state = repository.getRepositoryState();
if (state != RepositoryState.SAFE)
return repoName + '|' + state.getDescription();
else
return repoName;
}
static String getShortBranch(Repository repository) throws IOException {
return Activator.getDefault().getRepositoryUtil()
.getShortBranch(repository);
}
static RevCommit getHeadCommit(Repository repository) {
return Activator.getDefault().getRepositoryUtil()
.parseHeadCommit(repository);
}
static String getBranchStatus(Repository repo) throws IOException {
String cachedStatus = branchState.get(repo);
if (cachedStatus != null)
return cachedStatus;
String branchName = repo.getBranch();
if (branchName == null)
return null;
BranchTrackingStatus status = BranchTrackingStatus.of(repo, branchName);
if (status == null)
return null;
if (status.getAheadCount() == 0 && status.getBehindCount() == 0)
return null;
String formattedStatus = GitLabels.formatBranchTrackingStatus(status);
branchState.put(repo, formattedStatus);
return formattedStatus;
}
static void clearState(Repository repo) {
branchState.remove(repo);
}
}
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