added isSupported method for repository features to RepositoryService

scm-core/src/main/java/sonia/scm/repository/api/RepositoryService.java

@@ -39,6 +39,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import sonia.scm.cache.CacheManager;
+import sonia.scm.repository.Feature;
 import sonia.scm.repository.PreProcessorUtil;
 import sonia.scm.repository.Repository;
 import sonia.scm.repository.spi.RepositoryServiceProvider;
@@ -295,6 +296,19 @@ public final class RepositoryService implements Closeable
     return provider.getSupportedCommands().contains(command);
   }
 
+  /**
+   * Returns true if the feature is supported by the repository service.
+   *
+   *
+   * @param feature feature
+   *
+   * @return true if the feature is supported
+   */
+  public boolean isSupported(Feature feature)
+  {
+    return provider.getSupportedFeatures().contains(feature);
+  }
+
   //~--- fields ---------------------------------------------------------------
 
   /** cache manager */

scm-core/src/main/java/sonia/scm/repository/spi/RepositoryServiceProvider.java

@@ -35,6 +35,7 @@ package sonia.scm.repository.spi;
 
 //~--- non-JDK imports --------------------------------------------------------
 
+import sonia.scm.repository.Feature;
 import sonia.scm.repository.api.Command;
 import sonia.scm.repository.api.CommandNotSupportedException;
 
@@ -43,6 +44,7 @@ import sonia.scm.repository.api.CommandNotSupportedException;
 import java.io.Closeable;
 import java.io.IOException;
 
+import java.util.Collections;
 import java.util.Set;
 
 /**
@@ -146,6 +148,17 @@ public abstract class RepositoryServiceProvider implements Closeable
     throw new CommandNotSupportedException(Command.LOG);
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public Set<Feature> getSupportedFeatures()
+  {
+    return Collections.EMPTY_SET;
+  }
+
   /**
    * Method description
    *

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

@@ -72,9 +72,6 @@ import java.io.OutputStream;
 
 import java.text.MessageFormat;
 
-import java.util.EnumSet;
-import java.util.Set;
-
 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.JAXBException;
 
@@ -101,15 +98,11 @@ public class HgRepositoryHandler
   /** Field description */
   public static final String TYPE_NAME = "hg";
 
-  /** Field description */
-  private static final Set<Feature> SUPPORTED_FEATURES =
-    EnumSet.of(Feature.COMBINED_DEFAULT_BRANCH);
-
   /** Field description */
   public static final Type TYPE = new RepositoryType(TYPE_NAME,
                                     TYPE_DISPLAYNAME,
                                     HgRepositoryServiceProvider.COMMANDS,
-                                    SUPPORTED_FEATURES);
+                                    HgRepositoryServiceProvider.FEATURES);
 
   /** the logger for HgRepositoryHandler */
   private static final Logger logger =

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

@@ -39,6 +39,7 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.io.Closeables;
 import com.google.inject.Provider;
 
+import sonia.scm.repository.Feature;
 import sonia.scm.repository.HgContext;
 import sonia.scm.repository.HgRepositoryHandler;
 import sonia.scm.repository.Repository;
@@ -49,6 +50,7 @@ import sonia.scm.repository.api.Command;
 import java.io.File;
 import java.io.IOException;
 
+import java.util.EnumSet;
 import java.util.Set;
 
 /**
@@ -59,11 +61,14 @@ public class HgRepositoryServiceProvider extends RepositoryServiceProvider
 {
 
   /** Field description */
-  public static final Set<Command> COMMANDS = ImmutableSet.of(Command.BLAME,
+  public static final Set<Command> COMMANDS = EnumSet.of(Command.BLAME,
                                                 Command.BROWSE, Command.CAT,
                                                 Command.DIFF, Command.LOG,
-                                                 Command.TAGS,
-                                                 Command.BRANCHES);
+                                                Command.TAGS, Command.BRANCHES);
+
+  /** Field description */
+  public static final Set<Feature> FEATURES =
+    EnumSet.of(Feature.COMBINED_DEFAULT_BRANCH);
 
   //~--- constructors ---------------------------------------------------------
 
@@ -187,6 +192,18 @@ public class HgRepositoryServiceProvider extends RepositoryServiceProvider
     return COMMANDS;
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public Set<Feature> getSupportedFeatures()
+  {
+    return FEATURES;
+  }
+
   /**
    * Method description
    *