From d79249e23eff9104725d41480bea0004046b8763 Mon Sep 17 00:00:00 2001
From: Sebastian Sdorra <sebastian.sdorra@cloudogu.com>
Date: Fri, 10 May 2013 15:49:32 +0200
Subject: [PATCH] implement mercurial pull command

---
 .../scm/repository/spi/HgPullCommand.java     | 112 ++++++++++++++++++
 .../spi/HgRepositoryServiceProvider.java      |  15 ++-
 2 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgPullCommand.java

diff --git a/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgPullCommand.java b/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgPullCommand.java
new file mode 100644
index 0000000000..2c30539dee
--- /dev/null
+++ b/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgPullCommand.java
@@ -0,0 +1,112 @@
+/**
+ * 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.aragost.javahg.Changeset;
+import com.aragost.javahg.commands.ExecutionException;
+
+import sonia.scm.repository.HgRepositoryHandler;
+import sonia.scm.repository.Repository;
+import sonia.scm.repository.RepositoryException;
+import sonia.scm.repository.api.PullResponse;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.IOException;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class HgPullCommand extends AbstractCommand implements PullCommand
+{
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param handler
+   * @param context
+   * @param repository
+   */
+  public HgPullCommand(HgRepositoryHandler handler, HgCommandContext context,
+    Repository repository)
+  {
+    super(context, repository);
+    this.handler = handler;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param request
+   *
+   * @return
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  @Override
+  public PullResponse pull(PullCommandRequest request)
+    throws RepositoryException, IOException
+  {
+    File remoteRepository = handler.getDirectory(request.getRemoteRepository());
+
+    List<Changeset> result = Collections.EMPTY_LIST;
+
+    try
+    {
+      result = com.aragost.javahg.commands.PullCommand.on(open()).execute(
+        remoteRepository.getAbsolutePath());
+    }
+    catch (ExecutionException ex)
+    {
+      throw new RepositoryException("could not execute push command", ex);
+    }
+
+    return new PullResponse(result.size());
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private HgRepositoryHandler handler;
+}
diff --git a/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgRepositoryServiceProvider.java b/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgRepositoryServiceProvider.java
index 523890438d..21aa71711a 100644
--- a/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgRepositoryServiceProvider.java
+++ b/scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/spi/HgRepositoryServiceProvider.java
@@ -69,7 +69,8 @@ public class HgRepositoryServiceProvider extends RepositoryServiceProvider
     Command.BRANCHES,
     Command.INCOMING,
     Command.OUTGOING,
-    Command.PUSH
+    Command.PUSH,
+    Command.PULL
   );
   //J+
 
@@ -209,6 +210,18 @@ public class HgRepositoryServiceProvider extends RepositoryServiceProvider
     return new HgOutgoingCommand(context, repository, handler);
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public PullCommand getPullCommand()
+  {
+    return new HgPullCommand(handler, context, repository);
+  }
+
   /**
    * Method description
    *