001    package 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    
022    import org.apache.maven.scm.providers.gitlib.settings.Settings;
023    import org.apache.maven.scm.providers.gitlib.settings.io.xpp3.GitXpp3Reader;
024    import org.codehaus.plexus.util.ReaderFactory;
025    import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
026    
027    import java.io.File;
028    import java.io.FileNotFoundException;
029    import java.io.IOException;
030    
031    /**
032     * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
033     * @version $Id: GitUtil.java 952835 2010-06-08 21:54:33Z olamy $
034     */
035    public 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    }