com.google.gerrit.server.project.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.project;
import static java.util.stream.Collectors.toList;
import com.google.common.collect.Streams;
import com.google.gerrit.entities.ImmutableConfig;
import java.util.Arrays;
import java.util.Set;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
import org.eclipse.jgit.annotations.Nullable;
import org.eclipse.jgit.lib.Config;
/** Configuration file in the projects refs/meta/config branch. */
public class ProjectLevelConfig {
private final String fileName;
private final ProjectState project;
private final ImmutableConfig immutableConfig;
public ProjectLevelConfig(
String fileName, ProjectState project, @Nullable ImmutableConfig immutableConfig) {
this.fileName = fileName;
this.project = project;
this.immutableConfig = immutableConfig == null ? ImmutableConfig.EMPTY : immutableConfig;
}
public Config get() {
return immutableConfig.mutableCopy();
}
public Config getWithInheritance() {
return getWithInheritance(/* merge= */ false);
}
/**
* Get a Config that includes the values from all parent projects.
*
* Merging means that matching sections/subsection will be merged to include the values from
* both parent and child config.
*
*
No merging means that matching sections/subsections in the child project will replace the
* corresponding value from the parent.
*
* @param merge whether to merge parent values with child values or not.
* @return a combined config.
*/
public Config getWithInheritance(boolean merge) {
Config cfg = new Config();
// Traverse from All-Projects down to the current project
StreamSupport.stream(project.treeInOrder().spliterator(), false)
.forEach(
parent -> {
ImmutableConfig levelCfg = parent.getConfig(fileName).immutableConfig;
for (String section : levelCfg.getSections()) {
Set allNames = cfg.getNames(section);
for (String name : levelCfg.getNames(section)) {
String[] levelValues = levelCfg.getStringList(section, null, name);
if (allNames.contains(name) && merge) {
cfg.setStringList(
section,
null,
name,
Stream.concat(
Arrays.stream(cfg.getStringList(section, null, name)),
Arrays.stream(levelValues))
.sorted()
.distinct()
.collect(toList()));
} else {
cfg.setStringList(section, null, name, Arrays.asList(levelValues));
}
}
for (String subsection : levelCfg.getSubsections(section)) {
allNames = cfg.getNames(section, subsection);
Set allNamesLevelCfg = levelCfg.getNames(section, subsection);
if (allNamesLevelCfg.isEmpty()) {
// Set empty subsection.
cfg.setString(section, subsection, null, null);
} else {
for (String name : allNamesLevelCfg) {
String[] levelValues = levelCfg.getStringList(section, subsection, name);
if (allNames.contains(name) && merge) {
cfg.setStringList(
section,
subsection,
name,
Streams.concat(
Arrays.stream(cfg.getStringList(section, subsection, name)),
Arrays.stream(levelValues))
.sorted()
.distinct()
.collect(toList()));
} else {
cfg.setStringList(section, subsection, name, Arrays.asList(levelValues));
}
}
}
}
}
});
return cfg;
}
}