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/******************************************************************************
* Copyright (c) 2011 GitHub Inc.
* 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
*
* Contributors:
* Kevin Sawicki (GitHub Inc.) - initial API and implementation
*****************************************************************************/
package org.eclipse.mylyn.internal.github.ui.pr;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Path;
import org.eclipse.egit.github.core.PullRequest;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.filter.TreeFilter;
import org.eclipse.mylyn.context.core.ContextCore;
import org.eclipse.mylyn.context.core.IInteractionContext;
import org.eclipse.mylyn.internal.github.core.pr.PullRequestComposite;
import org.eclipse.mylyn.internal.github.core.pr.PullRequestConnector;
import org.eclipse.mylyn.internal.github.core.pr.PullRequestUtils;
import org.eclipse.mylyn.internal.github.ui.GitHubUi;
import org.eclipse.mylyn.monitor.core.InteractionEvent;
import org.eclipse.mylyn.resources.ui.ResourcesUi;
import org.eclipse.mylyn.tasks.core.ITask;
import org.eclipse.mylyn.tasks.core.TaskActivationAdapter;
import org.eclipse.mylyn.tasks.core.data.TaskData;
import org.eclipse.mylyn.tasks.ui.TasksUi;
/**
* Adds the files from a pull request's commits to the context when it is
* activated.
*/
public class PullRequestContextSynchronizer extends TaskActivationAdapter {
public void taskActivated(ITask task) {
if (task == null)
return;
if (!PullRequestConnector.KIND.equals(task.getConnectorKind()))
return;
IInteractionContext context = ContextCore.getContextManager()
.getActiveContext();
if (context == null)
return;
try {
TaskData data = TasksUi.getTaskDataManager().getTaskData(task);
PullRequestComposite prComp = PullRequestConnector
.getPullRequest(data);
if (prComp == null)
return;
PullRequest request = prComp.getRequest();
Repository repository = PullRequestUtils.getRepository(request);
if (repository == null)
return;
try (RevWalk walk = new RevWalk(repository);
TreeWalk diffs = new TreeWalk(walk.getObjectReader())) {
diffs.setFilter(TreeFilter.ANY_DIFF);
diffs.setRecursive(true);
diffs.addTree(walk.parseCommit(
ObjectId.fromString(request.getHead().getSha())).getTree());
diffs.addTree(walk.parseCommit(
ObjectId.fromString(request.getBase().getSha())).getTree());
Set<IResource> resources = new HashSet<IResource>();
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
String base = repository.getWorkTree().getAbsolutePath() + "/"; //$NON-NLS-1$
while (diffs.next()) {
IFile file = root.getFileForLocation(Path.fromOSString(base
+ diffs.getPathString()));
if (file != null)
resources.add(file);
}
if (!resources.isEmpty())
ResourcesUi.addResourceToContext(resources,
InteractionEvent.Kind.SELECTION);
}
} catch (MissingObjectException ignored) {
// Ignored
} catch (IOException e) {
GitHubUi.logError(e);
} catch (CoreException e) {
GitHubUi.logError(e);
}
}
}
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