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// Copyright (C) 2012 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.sshd.commands;
import com.google.common.collect.Lists;
import com.google.gerrit.common.data.GarbageCollectionResult;
import com.google.gerrit.common.data.GlobalCapability;
import com.google.gerrit.extensions.annotations.RequiresCapability;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.server.git.GarbageCollection;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectControl;
import com.google.gerrit.sshd.BaseCommand;
import com.google.gerrit.sshd.CommandMetaData;
import com.google.inject.Inject;
import org.apache.sshd.server.Environment;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.Option;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
/** Runs the Git garbage collection. */
@RequiresCapability(GlobalCapability.RUN_GC)
@CommandMetaData(name = "gc", descr = "Run Git garbage collection")
public class GarbageCollectionCommand extends BaseCommand {
@Option(name = "--all", usage = "runs the Git garbage collection for all projects")
private boolean all;
@Argument(index = 0, required = false, multiValued = true, metaVar = "NAME",
usage = "projects for which the Git garbage collection should be run")
private List<ProjectControl> projects = new ArrayList<ProjectControl>();
@Inject
private ProjectCache projectCache;
@Inject
private GarbageCollection.Factory garbageCollectionFactory;
private PrintWriter stdout;
@Override
public void start(Environment env) throws IOException {
startThread(new CommandRunnable() {
@Override
public void run() throws Exception {
stdout = toPrintWriter(out);
try {
parseCommandLine();
verifyCommandLine();
runGC();
} finally {
stdout.flush();
}
}
});
}
private void verifyCommandLine() throws UnloggedFailure {
if (!all && projects.isEmpty()) {
throw new UnloggedFailure(1,
"needs projects as command arguments or --all option");
}
if (all && !projects.isEmpty()) {
throw new UnloggedFailure(1,
"either specify projects as command arguments or use --all option");
}
}
private void runGC() {
List<Project.NameKey> projectNames;
if (all) {
projectNames = Lists.newArrayList(projectCache.all());
} else {
projectNames = Lists.newArrayListWithCapacity(projects.size());
for (ProjectControl pc : projects) {
projectNames.add(pc.getProject().getNameKey());
}
}
GarbageCollectionResult result =
garbageCollectionFactory.create().run(projectNames, stdout);
if (result.hasErrors()) {
for (GarbageCollectionResult.Error e : result.getErrors()) {
String msg;
switch (e.getType()) {
case REPOSITORY_NOT_FOUND:
msg = "error: project \"" + e.getProjectName() + "\" not found";
break;
case GC_ALREADY_SCHEDULED:
msg = "error: garbage collection for project \""
+ e.getProjectName() + "\" was already scheduled";
break;
case GC_FAILED:
msg = "error: garbage collection for project \"" + e.getProjectName()
+ "\" failed";
break;
default:
msg = "error: garbage collection for project \"" + e.getProjectName()
+ "\" failed: " + e.getType();
}
stdout.print(msg + "\n");
}
}
}
}
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