implements tags command for git

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

@@ -30,6 +30,7 @@
  */
 
 
+
 package sonia.scm.repository.spi;
 
 //~--- non-JDK imports --------------------------------------------------------
@@ -56,7 +57,8 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
   /** Field description */
   private static final Set<Command> COMMANDS = ImmutableSet.of(Command.BLAME,
                                                  Command.BROWSE, Command.CAT,
-                                                 Command.DIFF, Command.LOG);
+                                                 Command.DIFF, Command.LOG,
+                                                 Command.TAGS);
 
   //~--- constructors ---------------------------------------------------------
 
@@ -68,7 +70,7 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
    * @param repository
    */
   public GitRepositoryServiceProvider(GitRepositoryHandler handler,
-          Repository repository)
+    Repository repository)
   {
     this.repository = repository;
     context = new GitContext(handler.getDirectory(repository));
@@ -162,6 +164,18 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
     return COMMANDS;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public TagsCommand getTagsCommand()
+  {
+    return new GitTagsCommand(context, repository);
+  }
+
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */

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

@@ -0,0 +1,129 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer. 2. Redistributions in
+ * binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution. 3. Neither the name of SCM-Manager;
+ * nor the names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.repository.spi;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.common.base.Function;
+import com.google.common.collect.Lists;
+
+import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.errors.GitAPIException;
+import org.eclipse.jgit.revwalk.RevTag;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sonia.scm.repository.Repository;
+import sonia.scm.repository.RepositoryException;
+import sonia.scm.repository.Tag;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.IOException;
+
+import java.util.List;
+import org.eclipse.jgit.lib.Ref;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class GitTagsCommand extends AbstractGitCommand implements TagsCommand
+{
+
+  /**
+   * the logger for GitTagsCommand
+   */
+  private static final Logger logger =
+    LoggerFactory.getLogger(GitTagsCommand.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param context
+   * @param repository
+   */
+  public GitTagsCommand(GitContext context, Repository repository)
+  {
+    super(context, repository);
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  private static final String PREFIX_TAG = "refs/tags/";
+  
+  /**
+   * Method description
+   *
+   *
+   * @return
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  @Override
+  public List<Tag> getTags() throws IOException, RepositoryException
+  {
+    List<Tag> tags = null;
+
+    try
+    {
+      Git git = new Git(open());
+      List<Ref> tagList = git.tagList().call();
+
+      tags = Lists.transform(tagList, new Function<Ref, Tag>()
+      {
+
+        @Override
+        public Tag apply(Ref input)
+        {
+          String name = input.getName();
+          if ( name.startsWith(PREFIX_TAG) ){
+            name = name.substring(PREFIX_TAG.length());
+          }
+          return new Tag(name, input.getObjectId().name());
+        }
+
+      });
+    }
+    catch (GitAPIException ex)
+    {
+      throw new RepositoryException("could not read tags from repository", ex);
+    }
+
+    return tags;
+  }
+}