com.google.gerrit.server.schema.Schema

Introduction

Here is the source code for com.google.gerrit.server.schema.Schema_56.java
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// 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();
            }
        }
    }
}
com.google.gerrit.server.schema.Schema_56.java Source code

Introduction

Source
