org.exist.git.xquery.BranchCreate.java Source code

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Here is the source code for org.exist.git.xquery.BranchCreate.java

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/*
 *  eXist Open Source Native XML Database
 *  Copyright (C) 2012-2013 The eXist Project
 *  http://exist-db.org
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  $Id$
 */
package org.exist.git.xquery;

import static org.exist.git.xquery.Module.FS;

import java.io.File;

import org.eclipse.jgit.api.CreateBranchCommand.SetupUpstreamMode;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.Constants;
import org.exist.dom.QName;
import org.exist.util.io.Resource;
import org.exist.xquery.*;
import org.exist.xquery.value.*;

/**
 * 
 * @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
 */
public class BranchCreate extends BasicFunction {

    public final static FunctionSignature signatures[] = { new FunctionSignature(
            new QName("branch-create", Module.NAMESPACE_URI, Module.PREFIX), "",
            new SequenceType[] {
                    new FunctionParameterSequenceType("localPath", Type.STRING, Cardinality.EXACTLY_ONE,
                            "Local path"),
                    new FunctionParameterSequenceType("branch-name", Type.STRING, Cardinality.EXACTLY_ONE,
                            "The name of the branch"),
                    new FunctionParameterSequenceType("start-point", Type.STRING, Cardinality.EXACTLY_ONE, "") },
            new FunctionReturnSequenceType(Type.BOOLEAN, Cardinality.EXACTLY_ONE,
                    "true if success, false otherwise")),
            new FunctionSignature(new QName("branch-create", Module.NAMESPACE_URI, Module.PREFIX), "",
                    new SequenceType[] {
                            new FunctionParameterSequenceType("localPath", Type.STRING, Cardinality.EXACTLY_ONE,
                                    "Local path"),
                            new FunctionParameterSequenceType("branch-name", Type.STRING, Cardinality.EXACTLY_ONE,
                                    "The name of the branch") },
                    new FunctionReturnSequenceType(Type.BOOLEAN, Cardinality.EXACTLY_ONE,
                            "true if success, false otherwise")) };

    public BranchCreate(XQueryContext context, FunctionSignature signature) {
        super(context, signature);
    }

    @Override
    public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {

        try {
            String localPath = args[0].getStringValue();
            if (!(localPath.endsWith("/")))
                localPath += File.separator;

            Git git = Git.open(new Resource(localPath), FS);

            git.branchCreate().setName(args[1].getStringValue())
                    .setStartPoint(
                            args.length <= 2 || args[2].isEmpty() ? Constants.HEAD : args[2].getStringValue())
                    .setUpstreamMode(SetupUpstreamMode.SET_UPSTREAM).setForce(true).call();

            return BooleanValue.TRUE;
        } catch (Throwable e) {
            throw new XPathException(this, Module.EXGIT001, e);
        }
    }
}