diff --git a/plugins/scm-hg-plugin/pom.xml b/plugins/scm-hg-plugin/pom.xml
new file mode 100644
index 0000000000..6e9872b121
--- /dev/null
+++ b/plugins/scm-hg-plugin/pom.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+      
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>sonia.scm.plugins</groupId>
+    <artifactId>scm-plugins</artifactId>
+    <version>1.0-SNAPSHOT</version>
+  </parent>
+
+  <groupId>sonia.scm.plugin</groupId>
+  <artifactId>scm-hg-plugin</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <name>scm-hg-plugin</name>
+  
+</project>
diff --git a/plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgConfig.java b/plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgConfig.java
new file mode 100644
index 0000000000..4c2be86c65
--- /dev/null
+++ b/plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgConfig.java
@@ -0,0 +1,85 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.repository;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+
+import javax.xml.bind.annotation.XmlRootElement;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@XmlRootElement(name = "config")
+public class HgConfig
+{
+
+  /**
+   * Constructs ...
+   *
+   */
+  public HgConfig() {}
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public File getConfigDirectory()
+  {
+    return configDirectory;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public File getRepositoryDirectory()
+  {
+    return repositoryDirectory;
+  }
+
+  //~--- set methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param configDirectory
+   */
+  public void setConfigDirectory(File configDirectory)
+  {
+    this.configDirectory = configDirectory;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryDirectory
+   */
+  public void setRepositoryDirectory(File repositoryDirectory)
+  {
+    this.repositoryDirectory = repositoryDirectory;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private File configDirectory;
+
+  /** Field description */
+  private File repositoryDirectory;
+}
diff --git a/plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgRepositoryManager.java b/plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgRepositoryManager.java
new file mode 100644
index 0000000000..f0e9831ee1
--- /dev/null
+++ b/plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgRepositoryManager.java
@@ -0,0 +1,208 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.repository;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.SCMContextProvider;
+import sonia.scm.util.AssertUtil;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.IOException;
+
+import java.util.Collection;
+
+import javax.xml.bind.JAXB;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class HgRepositoryManager implements RepositoryManager
+{
+
+  /** Field description */
+  public static final String TYPE_DISPLAYNAME = "Mercurial";
+
+  /** Field description */
+  public static final String TYPE_NAME = "hg";
+
+  /** Field description */
+  public static final RepositoryType TYPE = new RepositoryType(TYPE_NAME,
+                                              TYPE_DISPLAYNAME);
+
+  /** Field description */
+  public static final String DEFAULT_CONFIGPATH =
+    "repositories".concat(File.separator).concat(TYPE_NAME);
+
+  /** Field description */
+  public static final String CONFIG_FILE =
+    "config".concat(File.separator).concat("hg.xml");
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @throws IOException
+   */
+  @Override
+  public void close() throws IOException {}
+
+  /**
+   * Method description
+   *
+   *
+   * @param repository
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  @Override
+  public void create(Repository repository)
+          throws RepositoryException, IOException
+  {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param repository
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  @Override
+  public void delete(Repository repository)
+          throws RepositoryException, IOException
+  {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param context
+   */
+  @Override
+  public void init(SCMContextProvider context)
+  {
+    File baseDirectory = context.getBaseDirectory();
+
+    AssertUtil.assertIsNotNull(baseDirectory);
+
+    File configFile = new File(baseDirectory, CONFIG_FILE);
+
+    if (configFile.exists())
+    {
+      config = JAXB.unmarshal(configFile, HgConfig.class);
+
+      if (config.getConfigDirectory() == null)
+      {
+        File configDirectory = new File(baseDirectory, DEFAULT_CONFIGPATH);
+
+        config.setConfigDirectory(configDirectory);
+      }
+    }
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param repository
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  @Override
+  public void modify(Repository repository)
+          throws RepositoryException, IOException
+  {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param repository
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   */
+  @Override
+  public void refresh(Repository repository)
+          throws RepositoryException, IOException
+  {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param name
+   *
+   * @return
+   */
+  @Override
+  public Repository get(String name)
+  {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public Collection<Repository> getAll()
+  {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public RepositoryType getType()
+  {
+    return TYPE;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public boolean isConfigured()
+  {
+    return config != null;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private HgConfig config;
+}
diff --git a/plugins/scm-hg-plugin/src/main/resources/META-INF/services/sonia.scm.repository.RepositoryManager b/plugins/scm-hg-plugin/src/main/resources/META-INF/services/sonia.scm.repository.RepositoryManager
new file mode 100644
index 0000000000..f975333410
--- /dev/null
+++ b/plugins/scm-hg-plugin/src/main/resources/META-INF/services/sonia.scm.repository.RepositoryManager
@@ -0,0 +1 @@
+sonia.scm.repository.HgRepositoryManager
\ No newline at end of file
diff --git a/scm-core/src/main/java/sonia/scm/ConfigurationException.java b/scm-core/src/main/java/sonia/scm/ConfigurationException.java
new file mode 100644
index 0000000000..3fec176177
--- /dev/null
+++ b/scm-core/src/main/java/sonia/scm/ConfigurationException.java
@@ -0,0 +1,64 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class ConfigurationException extends RuntimeException
+{
+
+  /** Field description */
+  private static final long serialVersionUID = 3462977946341972841L;
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   */
+  public ConfigurationException()
+  {
+    super();
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param message
+   */
+  public ConfigurationException(String message)
+  {
+    super(message);
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param cause
+   */
+  public ConfigurationException(Throwable cause)
+  {
+    super(cause);
+  }
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param message
+   * @param cause
+   */
+  public ConfigurationException(String message, Throwable cause)
+  {
+    super(message, cause);
+  }
+}
diff --git a/scm-core/src/main/java/sonia/scm/Manager.java b/scm-core/src/main/java/sonia/scm/Manager.java
index d964c6bc45..41276842f0 100644
--- a/scm-core/src/main/java/sonia/scm/Manager.java
+++ b/scm-core/src/main/java/sonia/scm/Manager.java
@@ -87,4 +87,12 @@ public interface Manager<T, E extends Exception> extends Initable, Closeable
    * @return
    */
   public Collection<T> getAll();
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public boolean isConfigured();
 }