package org.apache.maven.scm.provider.hg.command.changelog;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import org.apache.maven.scm.ChangeFile;
import org.apache.maven.scm.ChangeSet;
import org.apache.maven.scm.ScmFileStatus;
import org.apache.maven.scm.log.ScmLogger;
import org.apache.maven.scm.provider.hg.command.HgConsumer;
/**
* @author <a href="mailto:thurner.rupert@ymono.net">thurner rupert</a>
* @version $Id: HgChangeLogConsumer.java 1328505 2012-04-20 21:11:40Z olamy $
*/
public class HgChangeLogConsumer
extends HgConsumer
{
private static final String TIME_PATTERN = "EEE MMM dd HH:mm:ss yyyy Z";
private static final String REVNO_TAG = "changeset: ";
private static final String TAG_TAG = "tag: ";
private static final String AUTHOR_TAG = "user: ";
private static final String TIME_STAMP_TOKEN = "date: ";
private static final String MESSAGE_TOKEN = "description:";
private static final String FILES_TOKEN = "files: ";
private String prevLine = "";
private String prevPrevLine = "";
private List<ChangeSet> logEntries = new ArrayList<ChangeSet>();
private ChangeSet currentChange;
private String currentRevision;
@SuppressWarnings( "unused" )
private String currentTag; // don't know what to do with this
private String userDatePattern;
private boolean spoolingComments;
private List<String> currentComment = null;
public HgChangeLogConsumer( ScmLogger logger, String userDatePattern )
{
super( logger );
this.userDatePattern = userDatePattern;
}
public List<ChangeSet> getModifications()
{
return logEntries;
}
/** {@inheritDoc} */
public void consumeLine( String line )
{
// override default behaviour which tries to pick through things for some standard messages. that
// does not apply here
doConsume( null, line );
}
/** {@inheritDoc} */
public void doConsume( ScmFileStatus status, String line )
{
String tmpLine = line;
// If current status == null then this is a new entry
// If the line == "" and previous line was "", then this is also a new entry
if ( ( line.equals( "" ) && ( prevLine.equals( "" ) && prevPrevLine.equals( "" ) ) ) || currentComment == null )
{
if ( currentComment != null )
{
StringBuilder comment = new StringBuilder();
for ( int i = 0; i < currentComment.size() - 1; i++ )
{
comment.append( currentComment.get( i ) );
if ( i + 1 < currentComment.size() - 1 )
{
comment.append( '\n' );
}
}
currentChange.setComment( comment.toString() );
}
spoolingComments = false;
//Init a new changeset
currentChange = new ChangeSet();
currentChange.setFiles( new ArrayList<ChangeFile>( 0 ) );
logEntries.add( currentChange );
//Reset memeber vars
currentComment = new ArrayList<String>();
currentRevision = "";
}
if ( spoolingComments )
{
currentComment.add( line );
}
else if ( line.startsWith( MESSAGE_TOKEN ) )
{
spoolingComments = true;
}
else if ( line.startsWith( REVNO_TAG ) )
{
tmpLine = line.substring( REVNO_TAG.length() );
tmpLine = tmpLine.trim();
currentRevision = tmpLine.substring( tmpLine.indexOf( ':' ) + 1 );
currentChange.setRevision( currentRevision );
}
else if ( line.startsWith( TAG_TAG ) )
{
tmpLine = line.substring( TAG_TAG.length() ).trim();
currentTag = tmpLine;
}
else if ( line.startsWith( AUTHOR_TAG ) )
{
tmpLine = line.substring( AUTHOR_TAG.length() );
tmpLine = tmpLine.trim();
currentChange.setAuthor( tmpLine );
}
else if ( line.startsWith( TIME_STAMP_TOKEN ) )
{
// TODO: FIX Date Parsing to match Mercurial or fix with template
tmpLine = line.substring( TIME_STAMP_TOKEN.length() ).trim();
Date date = parseDate( tmpLine, userDatePattern, TIME_PATTERN, Locale.ENGLISH );
currentChange.setDate( date );
}
else if ( line.startsWith( FILES_TOKEN ) )
{
tmpLine = line.substring( FILES_TOKEN.length() ).trim();
String[] files = tmpLine.split( " " );
for ( int i = 0; i < files.length; i++ )
{
String file = files[i];
ChangeFile changeFile = new ChangeFile( file, currentRevision );
currentChange.addFile( changeFile );
}
}
else if ( line.length() > 0 )
{
if ( getLogger().isWarnEnabled() )
{
getLogger().warn( "Could not figure out: " + line );
}
}
// record previous line
prevLine = line;
prevPrevLine = prevLine;
}
}