Merge with 2.0.0-m3

scm-core/src/main/java/sonia/scm/api/v2/resources/MergeResultDto.java

@@ -1,12 +0,0 @@
-package sonia.scm.api.v2.resources;
-
-import lombok.Getter;
-import lombok.Setter;
-
-import java.util.Collection;
-
-@Getter
-@Setter
-public class MergeResultDto {
-  private Collection<String> filesWithConflict;
-}

scm-core/src/main/java/sonia/scm/api/v2/resources/MergeResultToDtoMapper.java

@@ -1,9 +0,0 @@
-package sonia.scm.api.v2.resources;
-
-import org.mapstruct.Mapper;
-import sonia.scm.repository.api.MergeCommandResult;
-
-@Mapper
-public interface MergeResultToDtoMapper {
-  MergeResultDto map(MergeCommandResult result);
-}

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

@@ -68,6 +68,10 @@ public final class BranchCommandBuilder {
     return command.branch(request);
   }
 
+  public void delete(String branchName) {
+    command.deleteOrClose(branchName);
+  }
+
   private BranchCommand command;
   private BranchRequest request = new BranchRequest();
 }

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

@@ -41,4 +41,6 @@ import sonia.scm.repository.api.BranchRequest;
  */
 public interface BranchCommand {
   Branch branch(BranchRequest name);
+
+  void deleteOrClose(String branchName);
 }

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

@@ -0,0 +1,19 @@
+package sonia.scm.repository.spi;
+
+import sonia.scm.ContextEntry;
+import sonia.scm.ExceptionWithContext;
+import sonia.scm.repository.Repository;
+
+public class CannotDeleteDefaultBranchException extends ExceptionWithContext {
+
+  public static final String CODE = "78RhWxTIw1";
+
+  public CannotDeleteDefaultBranchException(Repository repository, String branchName) {
+    super(ContextEntry.ContextBuilder.entity("Branch", branchName).in(repository).build(), "default branch cannot be deleted");
+  }
+
+  @Override
+  public String getCode() {
+    return CODE;
+  }
+}

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

@@ -33,51 +33,120 @@
 package sonia.scm.repository.spi;
 
 import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.api.errors.CannotDeleteCurrentBranchException;
 import org.eclipse.jgit.api.errors.GitAPIException;
 import org.eclipse.jgit.lib.Ref;
-import org.eclipse.jgit.transport.PushResult;
+import sonia.scm.event.ScmEventBus;
-import org.eclipse.jgit.transport.RemoteRefUpdate;
 import sonia.scm.repository.Branch;
 import sonia.scm.repository.GitUtil;
-import sonia.scm.repository.GitWorkdirFactory;
 import sonia.scm.repository.InternalRepositoryException;
+import sonia.scm.repository.PostReceiveRepositoryHookEvent;
+import sonia.scm.repository.PreReceiveRepositoryHookEvent;
 import sonia.scm.repository.Repository;
+import sonia.scm.repository.RepositoryHookEvent;
+import sonia.scm.repository.RepositoryHookType;
 import sonia.scm.repository.api.BranchRequest;
-import sonia.scm.repository.util.WorkingCopy;
+import sonia.scm.repository.api.HookBranchProvider;
+import sonia.scm.repository.api.HookContext;
+import sonia.scm.repository.api.HookContextFactory;
+import sonia.scm.repository.api.HookFeature;
 
-import java.util.stream.StreamSupport;
+import java.io.IOException;
+import java.util.List;
+import java.util.Set;
+
+import static java.util.Collections.emptyList;
+import static java.util.Collections.singleton;
+import static java.util.Collections.singletonList;
+import static sonia.scm.ContextEntry.ContextBuilder.entity;
 
 public class GitBranchCommand extends AbstractGitCommand implements BranchCommand {
 
-  private final GitWorkdirFactory workdirFactory;
+  private final HookContextFactory hookContextFactory;
+  private final ScmEventBus eventBus;
 
-  GitBranchCommand(GitContext context, Repository repository, GitWorkdirFactory workdirFactory) {
+  GitBranchCommand(GitContext context, Repository repository, HookContextFactory hookContextFactory, ScmEventBus eventBus) {
     super(context, repository);
-    this.workdirFactory = workdirFactory;
+    this.hookContextFactory = hookContextFactory;
+    this.eventBus = eventBus;
   }
 
   @Override
   public Branch branch(BranchRequest request) {
-    try (WorkingCopy<org.eclipse.jgit.lib.Repository, org.eclipse.jgit.lib.Repository> workingCopy = workdirFactory.createWorkingCopy(context, request.getParentBranch())) {
+    try (Git git = new Git(context.open())) {
-      Git clone = new Git(workingCopy.getWorkingRepository());
+      RepositoryHookEvent hookEvent = createBranchHookEvent(BranchHookContextProvider.createHookEvent(request.getNewBranch()));
-      Ref ref = clone.branchCreate().setName(request.getNewBranch()).call();
+      eventBus.post(new PreReceiveRepositoryHookEvent(hookEvent));
-      Iterable<PushResult> call = clone.push().add(request.getNewBranch()).call();
+      Ref ref = git.branchCreate().setStartPoint(request.getParentBranch()).setName(request.getNewBranch()).call();
-      StreamSupport.stream(call.spliterator(), false)
+      eventBus.post(new PostReceiveRepositoryHookEvent(hookEvent));
-        .flatMap(pushResult -> pushResult.getRemoteUpdates().stream())
-        .filter(remoteRefUpdate -> remoteRefUpdate.getStatus() != RemoteRefUpdate.Status.OK)
-        .findFirst()
-        .ifPresent(r -> this.handlePushError(r, request, context.getRepository()));
       return Branch.normalBranch(request.getNewBranch(), GitUtil.getId(ref.getObjectId()));
-    } catch (GitAPIException ex) {
+    } catch (GitAPIException | IOException ex) {
       throw new InternalRepositoryException(repository, "could not create branch " + request.getNewBranch(), ex);
     }
   }
 
-  private void handlePushError(RemoteRefUpdate remoteRefUpdate, BranchRequest request, Repository repository) {
+  @Override
-    if (remoteRefUpdate.getStatus() != RemoteRefUpdate.Status.OK) {
+  public void deleteOrClose(String branchName) {
-      // TODO handle failed remote update
+    try (Git gitRepo = new Git(context.open())) {
-      throw new IntegrateChangesFromWorkdirException(repository,
+      RepositoryHookEvent hookEvent = createBranchHookEvent(BranchHookContextProvider.deleteHookEvent(branchName));
-        String.format("Could not push new branch '%s' into central repository", request.getNewBranch()));
+      eventBus.post(new PreReceiveRepositoryHookEvent(hookEvent));
+      gitRepo
+        .branchDelete()
+        .setBranchNames(branchName)
+        .setForce(true)
+        .call();
+      eventBus.post(new PostReceiveRepositoryHookEvent(hookEvent));
+    } catch (CannotDeleteCurrentBranchException e) {
+      throw new CannotDeleteDefaultBranchException(context.getRepository(), branchName);
+    } catch (GitAPIException | IOException ex) {
+      throw new InternalRepositoryException(entity(context.getRepository()), String.format("Could not delete branch: %s", branchName));
+    }
+  }
+
+  private RepositoryHookEvent createBranchHookEvent(BranchHookContextProvider hookEvent) {
+    HookContext context = hookContextFactory.createContext(hookEvent, this.context.getRepository());
+    return new RepositoryHookEvent(context, this.context.getRepository(), RepositoryHookType.PRE_RECEIVE);
+  }
+
+  private static class BranchHookContextProvider extends HookContextProvider {
+    private final List<String> newBranches;
+    private final List<String> deletedBranches;
+
+    private BranchHookContextProvider(List<String> newBranches, List<String> deletedBranches) {
+      this.newBranches = newBranches;
+      this.deletedBranches = deletedBranches;
+    }
+
+    static BranchHookContextProvider createHookEvent(String newBranch) {
+      return new BranchHookContextProvider(singletonList(newBranch), emptyList());
+    }
+
+    static BranchHookContextProvider deleteHookEvent(String deletedBranch) {
+      return new BranchHookContextProvider(emptyList(), singletonList(deletedBranch));
+    }
+
+    @Override
+    public Set<HookFeature> getSupportedFeatures() {
+      return singleton(HookFeature.BRANCH_PROVIDER);
+    }
+
+    @Override
+    public HookBranchProvider getBranchProvider() {
+      return new HookBranchProvider() {
+        @Override
+        public List<String> getCreatedOrModified() {
+          return newBranches;
+        }
+
+        @Override
+        public List<String> getDeletedOrClosed() {
+          return deletedBranches;
+        }
+      };
+    }
+
+    @Override
+    public HookChangesetProvider getChangesetProvider() {
+      return r -> new HookChangesetResponse(emptyList());
     }
   }
 }

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

@@ -35,10 +35,12 @@ package sonia.scm.repository.spi;
 
 import com.google.common.collect.ImmutableSet;
 import sonia.scm.api.v2.resources.GitRepositoryConfigStoreProvider;
+import sonia.scm.event.ScmEventBus;
 import sonia.scm.repository.Feature;
 import sonia.scm.repository.GitRepositoryHandler;
 import sonia.scm.repository.Repository;
 import sonia.scm.repository.api.Command;
+import sonia.scm.repository.api.HookContextFactory;
 import sonia.scm.web.lfs.LfsBlobStoreFactory;
 
 import java.io.IOException;
@@ -64,6 +66,7 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
     Command.DIFF_RESULT,
     Command.LOG,
     Command.TAGS,
+    Command.BRANCH,
     Command.BRANCHES, 
     Command.INCOMING,
     Command.OUTGOING,
@@ -77,10 +80,12 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
 
   //~--- constructors ---------------------------------------------------------
 
-  public GitRepositoryServiceProvider(GitRepositoryHandler handler, Repository repository, GitRepositoryConfigStoreProvider storeProvider, LfsBlobStoreFactory lfsBlobStoreFactory) {
+  public GitRepositoryServiceProvider(GitRepositoryHandler handler, Repository repository, GitRepositoryConfigStoreProvider storeProvider, LfsBlobStoreFactory lfsBlobStoreFactory, HookContextFactory hookContextFactory, ScmEventBus eventBus) {
     this.handler = handler;
     this.repository = repository;
     this.lfsBlobStoreFactory = lfsBlobStoreFactory;
+    this.hookContextFactory = hookContextFactory;
+    this.eventBus = eventBus;
     this.context = new GitContext(handler.getDirectory(repository.getId()), repository, storeProvider);
   }
 
@@ -133,7 +138,7 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
   @Override
   public BranchCommand getBranchCommand()
   {
-    return new GitBranchCommand(context, repository, handler.getWorkdirFactory());
+    return new GitBranchCommand(context, repository, hookContextFactory, eventBus);
   }
 
   /**
@@ -292,4 +297,8 @@ public class GitRepositoryServiceProvider extends RepositoryServiceProvider
   private final Repository repository;
 
   private final LfsBlobStoreFactory lfsBlobStoreFactory;
+
+  private final HookContextFactory hookContextFactory;
+
+  private final ScmEventBus eventBus;
 }

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

@@ -36,9 +36,11 @@ package sonia.scm.repository.spi;
 
 import com.google.inject.Inject;
 import sonia.scm.api.v2.resources.GitRepositoryConfigStoreProvider;
+import sonia.scm.event.ScmEventBus;
 import sonia.scm.plugin.Extension;
 import sonia.scm.repository.GitRepositoryHandler;
 import sonia.scm.repository.Repository;
+import sonia.scm.repository.api.HookContextFactory;
 import sonia.scm.web.lfs.LfsBlobStoreFactory;
 
 /**
@@ -51,12 +53,16 @@ public class GitRepositoryServiceResolver implements RepositoryServiceResolver {
   private final GitRepositoryHandler handler;
   private final GitRepositoryConfigStoreProvider storeProvider;
   private final LfsBlobStoreFactory lfsBlobStoreFactory;
+  private final HookContextFactory hookContextFactory;
+  private final ScmEventBus eventBus;
 
   @Inject
-  public GitRepositoryServiceResolver(GitRepositoryHandler handler, GitRepositoryConfigStoreProvider storeProvider, LfsBlobStoreFactory lfsBlobStoreFactory) {
+  public GitRepositoryServiceResolver(GitRepositoryHandler handler, GitRepositoryConfigStoreProvider storeProvider, LfsBlobStoreFactory lfsBlobStoreFactory, HookContextFactory hookContextFactory, ScmEventBus eventBus) {
     this.handler = handler;
     this.storeProvider = storeProvider;
     this.lfsBlobStoreFactory = lfsBlobStoreFactory;
+    this.hookContextFactory = hookContextFactory;
+    this.eventBus = eventBus;
   }
 
   @Override
@@ -64,7 +70,7 @@ public class GitRepositoryServiceResolver implements RepositoryServiceResolver {
     GitRepositoryServiceProvider provider = null;
 
     if (GitRepositoryHandler.TYPE_NAME.equalsIgnoreCase(repository.getType())) {
-      provider = new GitRepositoryServiceProvider(handler, repository, storeProvider, lfsBlobStoreFactory);
+      provider = new GitRepositoryServiceProvider(handler, repository, storeProvider, lfsBlobStoreFactory, hookContextFactory, eventBus);
     }
 
     return provider;

scm-plugins/scm-git-plugin/src/test/java/sonia/scm/repository/spi/GitBranchCommandTest.java

@@ -1,20 +1,37 @@
 package sonia.scm.repository.spi;
 
-import org.assertj.core.api.Assertions;
-import org.junit.Rule;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.junit.MockitoJUnitRunner;
+import sonia.scm.event.ScmEventBus;
 import sonia.scm.repository.Branch;
+import sonia.scm.repository.PostReceiveRepositoryHookEvent;
+import sonia.scm.repository.PreReceiveRepositoryHookEvent;
 import sonia.scm.repository.api.BranchRequest;
-import sonia.scm.repository.util.WorkdirProvider;
+import sonia.scm.repository.api.HookContext;
+import sonia.scm.repository.api.HookContextFactory;
 
 import java.io.IOException;
 import java.util.List;
 
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
 
+
+@RunWith(MockitoJUnitRunner.class)
 public class GitBranchCommandTest extends AbstractGitCommandTestBase {
 
-  @Rule
+  @Mock
-  public BindTransportProtocolRule transportProtocolRule = new BindTransportProtocolRule();
+  private HookContextFactory hookContextFactory;
+  @Mock
+  private ScmEventBus eventBus;
 
   @Test
   public void shouldCreateBranchWithDefinedSourceBranch() throws IOException {
@@ -26,10 +43,10 @@ public class GitBranchCommandTest extends AbstractGitCommandTestBase {
     branchRequest.setParentBranch(source.getName());
     branchRequest.setNewBranch("new_branch");
 
-    new GitBranchCommand(context, repository, new SimpleGitWorkdirFactory(new WorkdirProvider())).branch(branchRequest);
+    createCommand().branch(branchRequest);
 
     Branch newBranch = findBranch(context, "new_branch");
-    Assertions.assertThat(newBranch.getRevision()).isEqualTo(source.getRevision());
+    assertThat(newBranch.getRevision()).isEqualTo(source.getRevision());
   }
 
   private Branch findBranch(GitContext context, String name) throws IOException {
@@ -41,17 +58,79 @@ public class GitBranchCommandTest extends AbstractGitCommandTestBase {
   public void shouldCreateBranch() throws IOException {
     GitContext context = createContext();
 
-    Assertions.assertThat(readBranches(context)).filteredOn(b -> b.getName().equals("new_branch")).isEmpty();
+    assertThat(readBranches(context)).filteredOn(b -> b.getName().equals("new_branch")).isEmpty();
 
     BranchRequest branchRequest = new BranchRequest();
     branchRequest.setNewBranch("new_branch");
 
-    new GitBranchCommand(context, repository, new SimpleGitWorkdirFactory(new WorkdirProvider())).branch(branchRequest);
+    createCommand().branch(branchRequest);
 
-    Assertions.assertThat(readBranches(context)).filteredOn(b -> b.getName().equals("new_branch")).isNotEmpty();
+    assertThat(readBranches(context)).filteredOn(b -> b.getName().equals("new_branch")).isNotEmpty();
+  }
+
+  @Test
+  public void shouldDeleteBranch() throws IOException {
+    GitContext context = createContext();
+    String branchToBeDeleted = "squash";
+    createCommand().deleteOrClose(branchToBeDeleted);
+    assertThat(readBranches(context)).filteredOn(b -> b.getName().equals(branchToBeDeleted)).isEmpty();
+  }
+
+  @Test
+  public void shouldThrowExceptionWhenDeletingDefaultBranch() {
+    String branchToBeDeleted = "master";
+    assertThrows(CannotDeleteDefaultBranchException.class, () -> createCommand().deleteOrClose(branchToBeDeleted));
+  }
+
+  private GitBranchCommand createCommand() {
+    return new GitBranchCommand(createContext(), repository, hookContextFactory, eventBus);
   }
 
   private List<Branch> readBranches(GitContext context) throws IOException {
     return new GitBranchesCommand(context, repository).getBranches();
   }
+
+  @Test
+  public void shouldPostCreateEvents() {
+    ArgumentCaptor<Object> captor = ArgumentCaptor.forClass(Object.class);
+    doNothing().when(eventBus).post(captor.capture());
+    when(hookContextFactory.createContext(any(), any())).thenAnswer(this::createMockedContext);
+
+    BranchRequest branchRequest = new BranchRequest();
+    branchRequest.setParentBranch("mergeable");
+    branchRequest.setNewBranch("new_branch");
+
+    createCommand().branch(branchRequest);
+
+    List<Object> events = captor.getAllValues();
+    assertThat(events.get(0)).isInstanceOf(PreReceiveRepositoryHookEvent.class);
+    assertThat(events.get(1)).isInstanceOf(PostReceiveRepositoryHookEvent.class);
+
+    PreReceiveRepositoryHookEvent event = (PreReceiveRepositoryHookEvent) events.get(0);
+    assertThat(event.getContext().getBranchProvider().getCreatedOrModified()).containsExactly("new_branch");
+    assertThat(event.getContext().getBranchProvider().getDeletedOrClosed()).isEmpty();
+  }
+
+  @Test
+  public void shouldPostDeleteEvents() {
+    ArgumentCaptor<Object> captor = ArgumentCaptor.forClass(Object.class);
+    doNothing().when(eventBus).post(captor.capture());
+    when(hookContextFactory.createContext(any(), any())).thenAnswer(this::createMockedContext);
+
+    createCommand().deleteOrClose("squash");
+
+    List<Object> events = captor.getAllValues();
+    assertThat(events.get(0)).isInstanceOf(PreReceiveRepositoryHookEvent.class);
+    assertThat(events.get(1)).isInstanceOf(PostReceiveRepositoryHookEvent.class);
+
+    PreReceiveRepositoryHookEvent event = (PreReceiveRepositoryHookEvent) events.get(0);
+    assertThat(event.getContext().getBranchProvider().getDeletedOrClosed()).containsExactly("squash");
+    assertThat(event.getContext().getBranchProvider().getCreatedOrModified()).isEmpty();
+  }
+
+  private HookContext createMockedContext(InvocationOnMock invocation) {
+    HookContext mock = mock(HookContext.class);
+    when(mock.getBranchProvider()).thenReturn(((HookContextProvider) invocation.getArgument(0)).getBranchProvider());
+    return mock;
+  }
 }

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

@@ -36,7 +36,9 @@ import com.aragost.javahg.commands.PullCommand;
 import org.apache.shiro.SecurityUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import sonia.scm.ContextEntry;
 import sonia.scm.repository.Branch;
+import sonia.scm.repository.InternalRepositoryException;
 import sonia.scm.repository.Repository;
 import sonia.scm.repository.api.BranchRequest;
 import sonia.scm.repository.util.WorkingCopy;
@@ -67,23 +69,46 @@ public class HgBranchCommand extends AbstractCommand implements BranchCommand {
       LOG.debug("Created new branch '{}' in repository {} with changeset {}",
         request.getNewBranch(), getRepository().getNamespaceAndName(), emptyChangeset.getNode());
 
-      pullNewBranchIntoCentralRepository(request, workingCopy);
+      pullChangesIntoCentralRepository(workingCopy, request.getNewBranch());
 
       return Branch.normalBranch(request.getNewBranch(), emptyChangeset.getNode());
     }
   }
 
+  @Override
+  public void deleteOrClose(String branchName) {
+    try (WorkingCopy<com.aragost.javahg.Repository, com.aragost.javahg.Repository> workingCopy = workdirFactory.createWorkingCopy(getContext(), branchName)) {
+      User currentUser = SecurityUtils.getSubject().getPrincipals().oneByType(User.class);
+
+      LOG.debug("Closing branch '{}' in repository {}", branchName, getRepository().getNamespaceAndName());
+
+      com.aragost.javahg.commands.CommitCommand
+        .on(workingCopy.getWorkingRepository())
+        .user(getFormattedUser(currentUser))
+        .message(String.format("Close branch: %s", branchName))
+        .closeBranch()
+        .execute();
+      pullChangesIntoCentralRepository(workingCopy, branchName);
+    } catch (Exception ex) {
+      throw new InternalRepositoryException(ContextEntry.ContextBuilder.entity(getContext().getScmRepository()), String.format("Could not close branch: %s", branchName));
+    }
+  }
+
+  private String getFormattedUser(User currentUser) {
+    return String.format("%s <%s>", currentUser.getDisplayName(), currentUser.getMail());
+  }
+
   private Changeset createNewBranchWithEmptyCommit(BranchRequest request, com.aragost.javahg.Repository repository) {
     com.aragost.javahg.commands.BranchCommand.on(repository).set(request.getNewBranch());
     User currentUser = SecurityUtils.getSubject().getPrincipals().oneByType(User.class);
     return CommitCommand
       .on(repository)
-      .user(String.format("%s <%s>", currentUser.getDisplayName(), currentUser.getMail()))
+      .user(getFormattedUser(currentUser))
       .message("Create new branch " + request.getNewBranch())
       .execute();
   }
 
-  private void pullNewBranchIntoCentralRepository(BranchRequest request, WorkingCopy<com.aragost.javahg.Repository, com.aragost.javahg.Repository> workingCopy) {
+  private void pullChangesIntoCentralRepository(WorkingCopy<com.aragost.javahg.Repository, com.aragost.javahg.Repository> workingCopy, String branch) {
     try {
       PullCommand pullCommand = PullCommand.on(workingCopy.getCentralRepository());
       workdirFactory.configure(pullCommand);
@@ -91,7 +116,7 @@ public class HgBranchCommand extends AbstractCommand implements BranchCommand {
     } catch (Exception e) {
       // TODO handle failed update
       throw new IntegrateChangesFromWorkdirException(getRepository(),
-        String.format("Could not pull new branch '%s' into central repository", request.getNewBranch()),
+        String.format("Could not pull changes '%s' into central repository", branch),
         e);
     }
   }

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

@@ -61,7 +61,8 @@ public class HgRepositoryServiceProvider extends RepositoryServiceProvider
     Command.CAT,
     Command.DIFF, 
     Command.LOG,
-    Command.TAGS, 
+    Command.TAGS,
+    Command.BRANCH,
     Command.BRANCHES,
     Command.INCOMING,
     Command.OUTGOING,

scm-plugins/scm-hg-plugin/src/test/java/sonia/scm/repository/spi/HgBranchCommandTest.java

@@ -6,6 +6,7 @@ import org.junit.Before;
 import org.junit.Test;
 import sonia.scm.repository.Branch;
 import sonia.scm.repository.HgTestUtil;
+import sonia.scm.repository.InternalRepositoryException;
 import sonia.scm.repository.api.BranchRequest;
 import sonia.scm.repository.util.WorkdirProvider;
 import sonia.scm.web.HgRepositoryEnvironmentBuilder;
@@ -13,6 +14,7 @@ import sonia.scm.web.HgRepositoryEnvironmentBuilder;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class HgBranchCommandTest extends AbstractHgCommandTestBase {
 
@@ -54,6 +56,22 @@ public class HgBranchCommandTest extends AbstractHgCommandTestBase {
     assertThat(cmdContext.open().changeset(newBranch.getRevision()).getParent1().getBranch()).isEqualTo("test-branch");
   }
 
+  @Test
+  public void shouldCloseBranch() {
+    String branchToBeClosed = "test-branch";
+
+    new HgBranchCommand(cmdContext, repository, workdirFactory).deleteOrClose(branchToBeClosed);
+    assertThat(readBranches()).filteredOn(b -> b.getName().equals(branchToBeClosed)).isEmpty();
+  }
+
+  @Test
+  public void shouldThrowInternalRepositoryException() {
+    String branchToBeClosed = "default";
+
+    new HgBranchCommand(cmdContext, repository, workdirFactory).deleteOrClose(branchToBeClosed);
+    assertThrows(InternalRepositoryException.class, () -> new HgBranchCommand(cmdContext, repository, workdirFactory).deleteOrClose(branchToBeClosed));
+  }
+
   private List<Branch> readBranches() {
     return new HgBranchesCommand(cmdContext, repository).getBranches();
   }

scm-webapp/src/main/java/sonia/scm/api/v2/resources/MapperModule.java

@@ -47,8 +47,6 @@ public class MapperModule extends AbstractModule {
     bind(ScmViolationExceptionToErrorDtoMapper.class).to(Mappers.getMapper(ScmViolationExceptionToErrorDtoMapper.class).getClass());
     bind(ExceptionWithContextToErrorDtoMapper.class).to(Mappers.getMapper(ExceptionWithContextToErrorDtoMapper.class).getClass());
 
-    bind(MergeResultToDtoMapper.class).to(Mappers.getMapper(MergeResultToDtoMapper.class).getClass());
-
     // no mapstruct required
     bind(MeDtoFactory.class);
     bind(UIPluginDtoMapper.class);

scm-webapp/src/main/resources/locales/de/plugins.json

@@ -187,6 +187,10 @@
     "6eRhF9gU41": {
       "displayName": "Nicht unterstützte Merge-Strategie",
       "description": "Die gewählte Merge-Strategie wird von dem Repository nicht unterstützt."
+    },
+    "78RhWxTIw1": {
+      "displayName": "Der Default-Branch kann nicht gelöscht werden",
+      "description": "Der Default-Branch kann nicht gelöscht werden. Bitte wählen Sie zuerst einen neuen Default-Branch."
     }
   },
   "namespaceStrategies": {

scm-webapp/src/main/resources/locales/en/plugins.json

@@ -187,6 +187,10 @@
     "6eRhF9gU41": {
       "displayName": "Merge strategy not supported",
       "description": "The selected merge strategy is not supported by the repository."
+    },
+    "78RhWxTIw1": {
+      "displayName": "Default branch cannot be deleted",
+      "description": "The default branch of a repository cannot be deleted. Please select another default branch first."
     }
   },
   "namespaceStrategies": {