// Copyright (C) 2011 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.Project;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.git.LocalDiskRepositoryManager;
import com.google.inject.Inject;
import com.google.inject.Provider;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import java.io.IOException;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class Schema_56 extends SchemaVersion {
private final LocalDiskRepositoryManager mgr;
private final Set<String> keysOne;
private final Set<String> keysTwo;
@Inject
Schema_56(Provider<Schema_55> prior, LocalDiskRepositoryManager mgr) {
super(prior);
this.mgr = mgr;
keysOne = new HashSet<String>();
keysTwo = new HashSet<String>();
keysOne.add(GitRepositoryManager.REF_CONFIG);
keysTwo.add(GitRepositoryManager.REF_CONFIG);
keysTwo.add(Constants.HEAD);
}
@Override
protected void migrateData(ReviewDb db, UpdateUI ui) {
for (Project.NameKey name : mgr.list()) {
Repository git;
try {
git = mgr.openRepository(name);
} catch (RepositoryNotFoundException e) {
ui.message("warning: Cannot open " + name.get());
continue;
}
try {
Map<String, Ref> all = git.getAllRefs();
if (all.keySet().equals(keysOne) || all.keySet().equals(keysTwo)) {
try {
RefUpdate update = git.updateRef(Constants.HEAD);
update.disableRefLog();
update.link(GitRepositoryManager.REF_CONFIG);
} catch (IOException err) {
ui.message("warning: " + name.get() + ": Cannot update HEAD to "
+ GitRepositoryManager.REF_CONFIG + ": " + err.getMessage());
}
}
} finally {
git.close();
}
}
}
}