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com.google.gerrit.server.git.ProjectLevelConfig Maven / Gradle / Ivy

// 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 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;
  }
}




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