org.eclipse.egit.ui.internal.actions.PushBranchActionHandler.java Source code

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Here is the source code for org.eclipse.egit.ui.internal.actions.PushBranchActionHandler.java

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/*******************************************************************************
 * Copyright (c) 2013, 2014 Robin Stocker <robin@nibor.org> and others.
 * 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.actions;

import java.io.IOException;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.push.PushBranchWizard;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;

/**
 * "Push Branch..." action for repository
 */
public class PushBranchActionHandler extends RepositoryActionHandler {
    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        Repository repository = getRepository(true, event);

        try {
            PushBranchWizard wizard = null;
            Ref ref = getBranchRef(repository);
            if (ref != null) {
                wizard = new PushBranchWizard(repository, ref);
            } else {
                ObjectId id = repository.resolve(repository.getFullBranch());
                wizard = new PushBranchWizard(repository, id);
            }
            WizardDialog dlg = new WizardDialog(getShell(event), wizard);
            dlg.open();
        } catch (IOException ex) {
            Activator.handleError(ex.getLocalizedMessage(), ex, false);
        }

        return null;
    }

    @Override
    public boolean isEnabled() {
        Repository repository = getRepository();
        if (repository == null) {
            return false;
        }
        try {
            Ref head = repository.exactRef(Constants.HEAD);
            if (head != null && head.getObjectId() != null) {
                return true;
            }
        } catch (IOException e) {
            Activator.logError(e.getMessage(), e);
        }
        return false;
    }

    private Ref getBranchRef(Repository repository) {
        try {
            String fullBranch = repository.getFullBranch();
            if (fullBranch != null && fullBranch.startsWith(Constants.R_HEADS))
                return repository.exactRef(fullBranch);
        } catch (IOException e) {
            Activator.handleError(e.getLocalizedMessage(), e, false);
        }
        return null;
    }
}