com.google.gerrit.server.git.ProjectLevelConfig.java Source code

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Here is the source code for com.google.gerrit.server.git.ProjectLevelConfig.java

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// Copyright (C) 2013 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.git;

import com.google.common.collect.Iterables;
import com.google.gerrit.reviewdb.client.RefNames;
import com.google.gerrit.server.project.ProjectState;
import java.io.IOException;
import java.util.Arrays;
import java.util.Set;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.CommitBuilder;
import org.eclipse.jgit.lib.Config;

/** Configuration file in the projects refs/meta/config branch. */
public class ProjectLevelConfig extends VersionedMetaData {
    private final String fileName;
    private final ProjectState project;
    private Config cfg;

    public ProjectLevelConfig(String fileName, ProjectState project) {
        this.fileName = fileName;
        this.project = project;
    }

    @Override
    protected String getRefName() {
        return RefNames.REFS_CONFIG;
    }

    @Override
    protected void onLoad() throws IOException, ConfigInvalidException {
        cfg = readConfig(fileName);
    }

    public Config get() {
        if (cfg == null) {
            cfg = new Config();
        }
        return cfg;
    }

    public Config getWithInheritance() {
        Config cfgWithInheritance = new Config();
        try {
            cfgWithInheritance.fromText(get().toText());
        } catch (ConfigInvalidException e) {
            // cannot happen
        }
        ProjectState parent = Iterables.getFirst(project.parents(), null);
        if (parent != null) {
            Config parentCfg = parent.getConfig(fileName).getWithInheritance();
            for (String section : parentCfg.getSections()) {
                Set<String> allNames = get().getNames(section);
                for (String name : parentCfg.getNames(section)) {
                    if (!allNames.contains(name)) {
                        cfgWithInheritance.setStringList(section, null, name,
                                Arrays.asList(parentCfg.getStringList(section, null, name)));
                    }
                }

                for (String subsection : parentCfg.getSubsections(section)) {
                    allNames = get().getNames(section, subsection);
                    for (String name : parentCfg.getNames(section, subsection)) {
                        if (!allNames.contains(name)) {
                            cfgWithInheritance.setStringList(section, subsection, name,
                                    Arrays.asList(parentCfg.getStringList(section, subsection, name)));
                        }
                    }
                }
            }
        }
        return cfgWithInheritance;
    }

    @Override
    protected boolean onSave(CommitBuilder commit) throws IOException, ConfigInvalidException {
        if (commit.getMessage() == null || "".equals(commit.getMessage())) {
            commit.setMessage("Updated configuration\n");
        }
        saveConfig(fileName, cfg);
        return true;
    }
}