001package org.apache.maven.scm.provider.git.util;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.maven.scm.providers.gitlib.settings.Settings;
023import org.apache.maven.scm.providers.gitlib.settings.io.xpp3.GitXpp3Reader;
024import org.codehaus.plexus.util.ReaderFactory;
025import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
026
027import java.io.File;
028import java.io.FileNotFoundException;
029import java.io.IOException;
030
031/**
032 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
033 *
034 */
035public class GitUtil
036{
037    protected static final String GIT_SETTINGS_FILENAME = "git-settings.xml";
038
039    public static final File DEFAULT_SETTINGS_DIRECTORY = new File( System.getProperty( "user.home" ), ".scm" );
040
041    private static File settingsDirectory = DEFAULT_SETTINGS_DIRECTORY;
042
043    private static Settings settings;
044    
045    private GitUtil()
046    {
047        // no op
048    }
049
050    public static Settings getSettings()
051    {
052        if ( settings == null )
053        {
054            settings = readSettings();
055        }
056        return settings;
057    }
058    
059    public static Settings readSettings()
060    {
061        File settingsFile = getSettingsFile();
062
063        if ( settingsFile.exists() )
064        {
065            GitXpp3Reader reader = new GitXpp3Reader();
066            try
067            {
068                return reader.read( ReaderFactory.newXmlReader( settingsFile ) );
069            }
070            catch ( FileNotFoundException e )
071            {
072                //Nothing to do
073            }
074            catch ( IOException e )
075            {
076                //Nothing to do
077            }
078            catch ( XmlPullParserException e )
079            {
080                String message = settingsFile.getAbsolutePath() + " isn't well formed. SKIPPED." + e.getMessage();
081
082                System.err.println( message );
083            }
084        }
085
086        return new Settings();
087    }
088
089    public static void setSettingsDirectory( File directory )
090    {
091        settingsDirectory = directory;
092        settings = readSettings();
093    }
094    
095    public static File getSettingsFile()
096    {
097        return new File( settingsDirectory, GIT_SETTINGS_FILENAME );
098   }
099}