added to view history of the specific file.

scm-clients/scm-client-api/src/main/java/sonia/scm/client/ClientChangesetHandler.java

@@ -55,4 +55,12 @@ public interface ClientChangesetHandler
    * @return
    */
   public ChangesetPagingResult getChangesets(int start, int limit);
+  
+  /**
+   * @param path
+   * @param start
+   * @param limit
+   * @return
+   */
+  public ChangesetPagingResult getChangesets(String path, int start, int limit);
 }

scm-clients/scm-client-api/src/main/java/sonia/scm/client/ScmUrlProvider.java

@@ -247,11 +247,12 @@ public class ScmUrlProvider
    * @param repositoryId
    * @since 1.8
    *
+   * @param path
    * @param start
    * @param limit
    * @return
    */
-  public String getRepositoryChangesetUrl(String repositoryId, int start,
+  public String getRepositoryChangesetUrl(String repositoryId, String path, int start,
           int limit)
   {
     String url = MessageFormat.format(getResourceUrl(URLPATTERN_CHANGESETS),
@@ -268,10 +269,31 @@ public class ScmUrlProvider
     {
       url = url.concat(s).concat("limit=").concat(String.valueOf(limit));
     }
+    
+    if (path != null) {
+      url = url.concat(s).concat("path=").concat(path);
+    }
 
     return url;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryId
+   * @since 1.8
+   *
+   * @param start
+   * @param limit
+   * @return
+   */
+  public String getRepositoryChangesetUrl(String repositoryId, int start,
+          int limit)
+  {
+    return getRepositoryChangesetUrl(repositoryId, null, start, limit);
+  }
+  
   /**
    * Method description
    *

scm-clients/scm-client-impl/src/main/java/sonia/scm/client/JerseyClientChangesetHandler.java

@@ -103,6 +103,43 @@ public class JerseyClientChangesetHandler implements ClientChangesetHandler
     return result;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param start
+   * @param limit
+   *
+   * @return
+   */
+  @Override
+  public ChangesetPagingResult getChangesets(String path, int start, int limit)
+  {
+    ChangesetPagingResult result = null;
+    String url =
+      session.getUrlProvider().getRepositoryChangesetUrl(repository.getId(),
+        start, limit);
+    WebResource resource = session.getClient().resource(url);
+    ClientResponse response = null;
+
+    try
+    {
+      response = resource.get(ClientResponse.class);
+
+      if (response.getStatus() != ScmClientException.SC_NOTFOUND)
+      {
+        ClientUtil.checkResponse(response, 200);
+        result = response.getEntity(ChangesetPagingResult.class);
+      }
+    }
+    finally
+    {
+      ClientUtil.close(response);
+    }
+
+    return result;
+  }
+  
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */

scm-core/src/main/java/sonia/scm/repository/ChangesetViewer.java

@@ -60,4 +60,22 @@ public interface ChangesetViewer
    */
   public ChangesetPagingResult getChangesets(int start, int max)
           throws IOException, RepositoryException;
+  
+  /**
+   * Method description
+   *
+   *
+   *
+   *
+   * @param path
+   * @param start
+   * @param max
+   *
+   * @return
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  public ChangesetPagingResult getChangesets(String path, int start, int max)
+          throws IOException, RepositoryException;
 }

scm-core/src/main/java/sonia/scm/repository/ChangesetViewerUtil.java

@@ -127,6 +127,38 @@ public class ChangesetViewerUtil extends PartCacheClearHook
     return getChangesets(repository, start, max);
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryId
+   * @param start
+   * @param max
+   *
+   * @return
+   *
+   *
+   * @throws IOException
+   * @throws NotSupportedFeatuerException
+   * @throws RepositoryException
+   */
+  public ChangesetPagingResult getChangesets(String repositoryId, String path, 
+          int start, int max)
+          throws IOException, RepositoryException, NotSupportedFeatuerException
+  {
+    AssertUtil.assertIsNotEmpty(repositoryId);
+
+    Repository repository = repositoryManager.get(repositoryId);
+
+    if (repository == null)
+    {
+      throw new RepositoryNotFoundException(
+          "could not find repository with id ".concat(repositoryId));
+    }
+
+    return getChangesets(repository, path, start, max);
+  }
+  
   /**
    * Method description
    *
@@ -158,7 +190,7 @@ public class ChangesetViewerUtil extends PartCacheClearHook
     }
 
     ChangesetViewerCacheKey key =
-      new ChangesetViewerCacheKey(repository.getId(), start, max);
+      new ChangesetViewerCacheKey(repository.getId(), "", start, max);
     ChangesetPagingResult result = cache.get(key);
 
     if (result == null)
@@ -188,6 +220,67 @@ public class ChangesetViewerUtil extends PartCacheClearHook
     return result;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param repository
+   * @param path
+   * @param start
+   * @param max
+   *
+   * @return
+   *
+   *
+   * @throws IOException
+   * @throws NotSupportedFeatuerException
+   * @throws RepositoryException
+   */
+  public ChangesetPagingResult getChangesets(Repository repository, String path,
+          int start, int max)
+          throws IOException, RepositoryException, NotSupportedFeatuerException
+  {
+    AssertUtil.assertIsNotNull(repository);
+
+    ChangesetViewer viewer = repositoryManager.getChangesetViewer(repository);
+
+    if (viewer == null)
+    {
+      throw new NotSupportedFeatuerException(
+          "ChangesetViewer is not supported for type ".concat(
+            repository.getType()));
+    }
+
+    ChangesetViewerCacheKey key =
+      new ChangesetViewerCacheKey(repository.getId(), path, start, max);
+    ChangesetPagingResult result = cache.get(key);
+
+    if (result == null)
+    {
+      result = viewer.getChangesets(path, start, max);
+
+      if (result != null)
+      {
+        if (Util.isNotEmpty(result.getChangesets()))
+        {
+          callPreProcessors(result);
+          callPreProcessorFactories(repository, result);
+        }
+
+        cache.put(key, result);
+      }
+      else
+      {
+        throw new RepositoryException("could not fetch changesets");
+      }
+    }
+    else if (logger.isDebugEnabled())
+    {
+      logger.debug("fetch changesetviewer results from cache");
+    }
+
+    return result;
+  }
   //~--- methods --------------------------------------------------------------
 
   /**
@@ -259,9 +352,10 @@ public class ChangesetViewerUtil extends PartCacheClearHook
      * @param start
      * @param max
      */
-    public ChangesetViewerCacheKey(String repository, int start, int max)
+    public ChangesetViewerCacheKey(String repository, String path, int start, int max)
     {
       this.repository = repository;
+      this.path = path;
       this.start = start;
       this.max = max;
     }
@@ -297,6 +391,13 @@ public class ChangesetViewerUtil extends PartCacheClearHook
       {
         return false;
       }
+      
+      if ((this.path == null)
+          ? (other.path != null)
+          : !this.path.equals(other.path))
+      {
+        return false;
+      }
 
       if (this.start != other.start)
       {
@@ -338,6 +439,9 @@ public class ChangesetViewerUtil extends PartCacheClearHook
 
     /** Field description */
     private String repository;
+    
+    /** Field description */
+    private String path;
 
     /** Field description */
     private int start;

scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/GitChangesetViewer.java

@@ -150,6 +150,76 @@ public class GitChangesetViewer implements ChangesetViewer
     return changesets;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param path
+   * @param start
+   * @param max
+   *
+   * @return
+   */
+  @Override
+  public ChangesetPagingResult getChangesets(String path, int start, int max)
+  {
+    ChangesetPagingResult changesets = null;
+    File directory = handler.getDirectory(repository);
+    org.eclipse.jgit.lib.Repository gr = null;
+    GitChangesetConverter converter = null;
+
+    try
+    {
+      gr = GitUtil.open(directory);
+
+      int counter = 0;
+      List<Changeset> changesetList = new ArrayList<Changeset>();
+
+      if (!gr.getAllRefs().isEmpty())
+      {
+        converter = new GitChangesetConverter(gr, GitUtil.ID_LENGTH);
+
+        Git git = new Git(gr);
+        ObjectId headId = GitUtil.getRepositoryHead(gr);
+
+        if (headId != null)
+        {
+          for (RevCommit commit : git.log().addPath(path).call())
+          {
+            if ((counter >= start) && (counter < start + max))
+            {
+              changesetList.add(converter.createChangeset(commit));
+            }
+
+            counter++;
+          }
+        }
+        else if (logger.isWarnEnabled())
+        {
+          logger.warn("could not find repository head of repository {}",
+                      repository.getName());
+        }
+      }
+
+      changesets = new ChangesetPagingResult(counter, changesetList);
+    }
+    catch (NoHeadException ex)
+    {
+      logger.error("could not read changesets", ex);
+    }
+    catch (IOException ex)
+    {
+      logger.error("could not open repository", ex);
+    }
+    finally
+    {
+      IOUtil.close(converter);
+      GitUtil.close(gr);
+    }
+
+    return changesets;
+  }
+  
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgChangesetViewer.java

@@ -114,6 +114,13 @@ public class HgChangesetViewer extends AbstractHgHandler
                          null);
   }
 
+  @Override
+  public ChangesetPagingResult getChangesets(String path, int start, int max)
+      throws IOException, RepositoryException {
+    // TODO Auto-generated method stub
+    return null;
+  }
+  
   /**
    * Method description
    *

scm-plugins/scm-svn-plugin/src/main/java/sonia/scm/repository/SvnChangesetViewer.java

@@ -47,6 +47,7 @@ import org.tmatesoft.svn.core.io.SVNRepositoryFactory;
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.File;
+import java.io.IOException;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -92,6 +93,21 @@ public class SvnChangesetViewer implements ChangesetViewer
   @Override
   public ChangesetPagingResult getChangesets(int start, int max)
   {
+    return getChangesets("", start, max);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param path
+   * @param start
+   * @param max
+   *
+   * @return
+   */
+  @Override
+  public ChangesetPagingResult getChangesets(String path, int start, int max) {
     ChangesetPagingResult changesets = null;
     File directory = handler.getDirectory(repostory);
     SVNRepository repository = null;
@@ -110,9 +126,9 @@ public class SvnChangesetViewer implements ChangesetViewer
       }
 
       List<Changeset> changesetList = new ArrayList<Changeset>();
-      Collection<SVNLogEntry> entries = repository.log(new String[] { "" },
+      Collection<SVNLogEntry> entries = repository.log(new String[] { path },
                                           null, startRev, endRev, true, true);
-
+      
       for (SVNLogEntry entry : entries)
       {
         changesetList.add(SvnUtil.createChangeset(entry));
@@ -132,12 +148,11 @@ public class SvnChangesetViewer implements ChangesetViewer
 
     return changesets;
   }
-
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */
   private SvnRepositoryHandler handler;
 
-  /** Field description */
-  private Repository repostory;
+	/** Field description */
+	private Repository repostory;
 }

scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryResource.java

@@ -35,6 +35,8 @@ package sonia.scm.api.rest.resources;
 
 //~--- non-JDK imports --------------------------------------------------------
 
+import antlr.StringUtils;
+
 import com.google.inject.Inject;
 import com.google.inject.Provider;
 import com.google.inject.Singleton;
@@ -434,7 +436,8 @@ public class RepositoryResource
   @Path("{id}/changesets")
   @TypeHint(ChangesetPagingResult.class)
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
-  public Response getChangesets(@PathParam("id") String id, @DefaultValue("0")
+  public Response getChangesets(@PathParam("id") String id, @DefaultValue("")
+  @QueryParam("path") String path, @DefaultValue("0")
   @QueryParam("start") int start, @DefaultValue("20")
   @QueryParam("limit") int limit) throws RepositoryException, IOException
   {
@@ -442,8 +445,13 @@ public class RepositoryResource
 
     try
     {
-      ChangesetPagingResult changesets = changesetViewerUtil.getChangesets(id,
-                                           start, limit);
+      ChangesetPagingResult changesets;
+      if ("".equals(path)) {
+        changesets = changesetViewerUtil.getChangesets(id, start, limit);
+      }
+      else {
+        changesets = changesetViewerUtil.getChangesets(id, path, start, limit);
+      }
 
       if (changesets != null)
       {