/*******************************************************************************
* Copyright (c) 2010 SAP AG.
* 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:
* Mathias Kinzler (SAP AG) - initial implementation
*******************************************************************************/
package org.eclipse.egit.ui.internal.repository.tree.command;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IWorkspaceRunnable;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.egit.core.op.DeleteBranchOperation;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.dialogs.UnmergedBranchDialog;
import org.eclipse.egit.ui.internal.repository.tree.RefNode;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.window.Window;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.swt.widgets.Shell;
/**
* Deletes a branch.
*/
public class DeleteBranchCommand extends
RepositoriesViewCommandHandler<RefNode> {
public Object execute(final ExecutionEvent event) throws ExecutionException {
final List<RefNode> nodes = getSelectedNodes(event);
final AtomicReference<List<RefNode>> unmergedNodesRef = new AtomicReference<List<RefNode>>();
final Shell shell = getShell(event);
try {
new ProgressMonitorDialog(shell).run(true, false,
new IRunnableWithProgress() {
public void run(IProgressMonitor monitor)
throws InvocationTargetException,
InterruptedException {
List<RefNode> unmergedNodes = deleteBranches(nodes, false, monitor);
unmergedNodesRef.set(unmergedNodes);
}
});
} catch (InvocationTargetException e1) {
Activator.handleError(
UIText.RepositoriesView_BranchDeletionFailureMessage, e1
.getCause(), true);
} catch (InterruptedException e1) {
// ignore
}
if (unmergedNodesRef.get().isEmpty())
return null;
MessageDialog messageDialog = new UnmergedBranchDialog<RefNode>(
shell, unmergedNodesRef.get());
if (messageDialog.open() != Window.OK)
return null;
try {
new ProgressMonitorDialog(shell).run(true, false,
new IRunnableWithProgress() {
public void run(IProgressMonitor monitor)
throws InvocationTargetException,
InterruptedException {
deleteBranches(unmergedNodesRef.get(), true, monitor);
}
});
} catch (InvocationTargetException e1) {
Activator.handleError(
UIText.RepositoriesView_BranchDeletionFailureMessage, e1
.getCause(), true);
} catch (InterruptedException e1) {
// ignore
}
return null;
}
private List<RefNode> deleteBranches(final List<RefNode> nodes,
final boolean forceDeletionOfUnmergedBranches,
IProgressMonitor progressMonitor) throws InvocationTargetException {
final List<RefNode> unmergedNodes = new ArrayList<RefNode>();
try {
ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
public void run(IProgressMonitor monitor) throws CoreException {
monitor.beginTask(UIText.DeleteBranchCommand_DeletingBranchesProgress, nodes.size());
for (RefNode refNode : nodes) {
int result = deleteBranch(refNode, refNode
.getObject(), forceDeletionOfUnmergedBranches);
if (result == DeleteBranchOperation.REJECTED_CURRENT) {
throw new CoreException(
Activator
.createErrorStatus(
UIText.DeleteBranchCommand_CannotDeleteCheckedOutBranch,
null));
} else if (result == DeleteBranchOperation.REJECTED_UNMERGED) {
unmergedNodes.add(refNode);
} else
monitor.worked(1);
}
}
}, progressMonitor);
} catch (CoreException ex) {
throw new InvocationTargetException(ex);
} finally {
progressMonitor.done();
}
return unmergedNodes;
}
private int deleteBranch(final RefNode node, final Ref ref, boolean force)
throws CoreException {
DeleteBranchOperation dbop = new DeleteBranchOperation(node
.getRepository(), ref, force);
dbop.execute(null);
return dbop.getStatus();
}
}