1 files changed, 52 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/schema/Schema_166.java b/java/com/google/gerrit/server/schema/Schema_166.java
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+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.schema;
+
+import com.google.gerrit.reviewdb.client.RefNames;
+import com.google.gerrit.reviewdb.server.ReviewDb;
+import com.google.gerrit.server.config.AllUsersName;
+import com.google.gerrit.server.git.GitRepositoryManager;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import java.io.IOException;
+import java.sql.SQLException;
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.RefUpdate;
+import org.eclipse.jgit.lib.Repository;
+
+/** Set HEAD for All-Users to refs/meta/config. */
+public class Schema_166 extends SchemaVersion {
+  private final GitRepositoryManager repoManager;
+  private final AllUsersName allUsersName;
+
+  @Inject
+  Schema_166(
+      Provider<Schema_165> prior, GitRepositoryManager repoManager, AllUsersName allUsersName) {
+    super(prior);
+    this.repoManager = repoManager;
+    this.allUsersName = allUsersName;
+  }
+
+  @Override
+  protected void migrateData(ReviewDb db, UpdateUI ui) throws OrmException, SQLException {
+    try (Repository git = repoManager.openRepository(allUsersName)) {
+      RefUpdate u = git.updateRef(Constants.HEAD);
+      u.link(RefNames.REFS_CONFIG);
+    } catch (IOException e) {
+      throw new OrmException(String.format("Failed to update HEAD for %s", allUsersName.get()), e);
+    }
+  }
+}