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https://github.com/scm-manager/scm-manager.git
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start implementing mercurial blame viewer
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Sebastian Sdorra
@@ -0,0 +1,232 @@
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/**
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* Copyright (c) 2010, Sebastian Sdorra
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of SCM-Manager; nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* http://bitbucket.org/sdorra/scm-manager
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*
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*/
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package sonia.scm.repository;
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//~--- non-JDK imports --------------------------------------------------------
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import sonia.scm.util.AssertUtil;
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import sonia.scm.util.IOUtil;
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import sonia.scm.util.Util;
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//~--- JDK imports ------------------------------------------------------------
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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*
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* @author Sebastian Sdorra
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*/
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public class HgBlameViewer implements BlameViewer
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{
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/** the logger for HgBlameViewer */
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private static final Logger logger =
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LoggerFactory.getLogger(HgBlameViewer.class);
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// sample: "Sebastian Sdorra <s.sdorra@ostfalia.de> 34 Wed Sep 08 10:22:46 2010 +0200:1: <?xml version=\"1.0\" encoding=\"UTF-8\"?>"
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/** Field description */
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public static final Pattern REGEX_FIRSTPART =
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Pattern.compile(
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"(?i)^(.*)\\s+([0-9]+)\\s+([a-z]{3}\\s[a-z]{3}\\s[0-9]{2}\\s[0-9]{2}:[0-9]{2}:[0-9]{2}\\s[0-9]{4}\\s[+-][0-9]{4}):([0-9]+):\\s(.*)$");
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//~--- constructors ---------------------------------------------------------
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/**
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* Constructs ...
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*
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*
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* @param handler
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* @param repositoryDirectory
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*/
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public HgBlameViewer(HgRepositoryHandler handler, File repositoryDirectory)
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{
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this.handler = handler;
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this.repositoryDirectory = repositoryDirectory;
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}
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/**
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* Constructs ...
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*
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*
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*
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* @param handler
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* @param repository
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*/
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public HgBlameViewer(HgRepositoryHandler handler, Repository repository)
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{
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this(handler, handler.getDirectory(repository));
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}
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//~--- get methods ----------------------------------------------------------
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/**
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* Method description
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*
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*
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* @param revision
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* @param path
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*
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* @return
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*
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* @throws IOException
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*/
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@Override
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public BlamePagingResult getBlame(String revision, String path)
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throws IOException
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{
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AssertUtil.assertIsNotEmpty(path);
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if (Util.isEmpty(revision))
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{
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revision = "tip";
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}
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ProcessBuilder builder =
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new ProcessBuilder(handler.getConfig().getHgBinary(), "annotate", "-r",
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revision, "-dnulv", Util.nonNull(path));
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if (logger.isDebugEnabled())
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{
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StringBuilder msg = new StringBuilder();
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for (String param : builder.command())
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{
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msg.append(param).append(" ");
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}
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logger.debug(msg.toString());
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}
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Process p = builder.directory(repositoryDirectory).start();
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BufferedReader reader = null;
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BlamePagingResult result = null;
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try
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{
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reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
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result = parseBlameInput(reader);
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}
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finally
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{
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IOUtil.close(reader);
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}
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return result;
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}
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//~--- methods --------------------------------------------------------------
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/**
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* Method description
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*
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*
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* @param reader
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*
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* @return
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*
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* @throws IOException
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*/
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private BlamePagingResult parseBlameInput(BufferedReader reader)
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throws IOException
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{
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List<BlameLine> blameLines = new ArrayList<BlameLine>();
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String line = reader.readLine();
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while (line != null)
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{
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BlameLine blameLine = parseBlameLine(line);
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if (blameLine != null)
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{
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blameLines.add(blameLine);
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}
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line = reader.readLine();
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}
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return new BlamePagingResult(blameLines.size(), blameLines);
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}
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/**
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* Method description
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*
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*
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* @param line
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*
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* @return
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*/
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private BlameLine parseBlameLine(String line)
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{
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BlameLine blameLine = null;
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Matcher m = REGEX_FIRSTPART.matcher(line);
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if (m.matches())
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{
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String author = m.group(1);
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// todo extract mail
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Person authorPerson = new Person(author);
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String whenString = m.group(3);
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// todo parse date
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Long when = null;
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blameLine = new BlameLine(authorPerson, when, m.group(2), m.group(5),
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Integer.parseInt(m.group(4)));
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}
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return blameLine;
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}
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//~--- fields ---------------------------------------------------------------
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/** Field description */
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private HgRepositoryHandler handler;
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/** Field description */
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private File repositoryDirectory;
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}
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@@ -198,7 +198,24 @@ public class HgRepositoryHandler
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@Override
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public BlameViewer getBlameViewer(Repository repository)
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{
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return null;
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BlameViewer blameViewer = null;
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AssertUtil.assertIsNotNull(repository);
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String type = repository.getType();
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AssertUtil.assertIsNotEmpty(type);
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if (TYPE_NAME.equals(type))
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{
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blameViewer = new HgBlameViewer(this, repository);
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}
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else
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{
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throw new IllegalArgumentException("mercurial repository is required");
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}
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return blameViewer;
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}
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/**
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