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// Copyright (C) 2009 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.googlesource.gerrit.plugins.replication;
import com.google.gerrit.extensions.annotations.RequiresCapability;
import com.google.gerrit.sshd.CommandMetaData;
import com.google.gerrit.sshd.SshCommand;
import com.google.inject.Inject;
import com.googlesource.gerrit.plugins.replication.PushResultProcessing.CommandProcessing;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.Option;
@RequiresCapability(StartReplicationCapability.START_REPLICATION)
@CommandMetaData(
name = "start",
description = "Start replication for specific project or all projects")
final class StartCommand extends SshCommand {
@Inject private ReplicationStateLogger stateLog;
@Option(name = "--all", usage = "push all known projects")
private boolean all;
@Option(name = "--url", metaVar = "PATTERN", usage = "pattern to match URL on")
private String urlMatch;
@Option(name = "--wait", usage = "wait for replication to finish before exiting")
private boolean wait;
@Argument(index = 0, multiValued = true, metaVar = "PATTERN", usage = "project name pattern")
private List<String> projectPatterns = new ArrayList<>(2);
@Inject private PushAll.Factory pushFactory;
@Override
protected void run() throws Failure {
if (all && projectPatterns.size() > 0) {
throw new UnloggedFailure(1, "error: cannot combine --all and PROJECT");
}
ReplicationState state = new ReplicationState(new CommandProcessing(this));
Future<?> future = null;
ReplicationFilter projectFilter;
if (all) {
projectFilter = ReplicationFilter.all();
} else {
projectFilter = new ReplicationFilter(projectPatterns);
}
future = pushFactory.create(urlMatch, projectFilter, state).schedule(0, TimeUnit.SECONDS);
if (wait) {
if (future != null) {
try {
future.get();
} catch (InterruptedException e) {
stateLog.error(
"Thread was interrupted while waiting for PushAll operation to finish", e, state);
return;
} catch (ExecutionException e) {
stateLog.error("An exception was thrown in PushAll operation", e, state);
return;
}
}
if (state.hasPushTask()) {
try {
state.waitForReplication();
} catch (InterruptedException e) {
writeStdErrSync("We are interrupted while waiting replication to complete");
}
} else {
writeStdOutSync("Nothing to replicate");
}
}
}
public void writeStdOutSync(final String message) {
if (wait) {
synchronized (stdout) {
stdout.println(message);
stdout.flush();
}
}
}
public void writeStdErrSync(final String message) {
if (wait) {
synchronized (stderr) {
stderr.println(message);
stderr.flush();
}
}
}
}
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