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/*
* Copyright 2014 gitblit.com.
*
* 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.gitblit;
import java.io.File;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.CmdLineException;
import org.kohsuke.args4j.CmdLineParser;
import org.kohsuke.args4j.Option;
import com.gitblit.manager.IRepositoryManager;
import com.gitblit.manager.IRuntimeManager;
import com.gitblit.manager.RepositoryManager;
import com.gitblit.manager.RuntimeManager;
import com.gitblit.models.RepositoryModel;
import com.gitblit.models.TicketModel;
import com.gitblit.models.TicketModel.Change;
import com.gitblit.tickets.BranchTicketService;
import com.gitblit.tickets.FileTicketService;
import com.gitblit.tickets.ITicketService;
import com.gitblit.tickets.RedisTicketService;
import com.gitblit.utils.StringUtils;
/**
* A command-line tool to move all tickets from one ticket service to another.
*
* @author James Moger
*
*/
public class MigrateTickets {
public static void main(String... args) {
MigrateTickets migrate = new MigrateTickets();
// filter out the baseFolder parameter
List<String> filtered = new ArrayList<String>();
String folder = "data";
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (arg.equals("--baseFolder")) {
if (i + 1 == args.length) {
System.out.println("Invalid --baseFolder parameter!");
System.exit(-1);
} else if (!".".equals(args[i + 1])) {
folder = args[i + 1];
}
i = i + 1;
} else {
filtered.add(arg);
}
}
Params.baseFolder = folder;
Params params = new Params();
CmdLineParser parser = new CmdLineParser(params);
try {
parser.parseArgument(filtered);
if (params.help) {
migrate.usage(parser, null);
return;
}
} catch (CmdLineException t) {
migrate.usage(parser, t);
return;
}
// load the settings
FileSettings settings = params.FILESETTINGS;
if (!StringUtils.isEmpty(params.settingsfile)) {
if (new File(params.settingsfile).exists()) {
settings = new FileSettings(params.settingsfile);
}
}
// migrate tickets
migrate.migrate(new File(Params.baseFolder), settings, params.outputServiceName);
System.exit(0);
}
/**
* Display the command line usage of MigrateTickets.
*
* @param parser
* @param t
*/
protected final void usage(CmdLineParser parser, CmdLineException t) {
System.out.println(Constants.BORDER);
System.out.println(Constants.getGitBlitVersion());
System.out.println(Constants.BORDER);
System.out.println();
if (t != null) {
System.out.println(t.getMessage());
System.out.println();
}
if (parser != null) {
parser.printUsage(System.out);
System.out
.println("\nExample:\n java -gitblit.jar com.gitblit.MigrateTickets com.gitblit.tickets.RedisTicketService --baseFolder c:\\gitblit-data");
}
System.exit(0);
}
/**
* Migrate all tickets
*
* @param baseFolder
* @param settings
* @param outputServiceName
*/
protected void migrate(File baseFolder, IStoredSettings settings, String outputServiceName) {
// disable some services
settings.overrideSetting(Keys.web.allowLuceneIndexing, false);
settings.overrideSetting(Keys.git.enableGarbageCollection, false);
settings.overrideSetting(Keys.git.enableMirroring, false);
settings.overrideSetting(Keys.web.activityCacheDays, 0);
settings.overrideSetting(ITicketService.SETTING_UPDATE_DIFFSTATS, false);
IRuntimeManager runtimeManager = new RuntimeManager(settings, baseFolder).start();
IRepositoryManager repositoryManager = new RepositoryManager(runtimeManager, null, null).start();
String inputServiceName = settings.getString(Keys.tickets.service, BranchTicketService.class.getSimpleName());
if (StringUtils.isEmpty(inputServiceName)) {
System.err.println(MessageFormat.format("Please define a ticket service in \"{0}\"", Keys.tickets.service));
System.exit(1);
}
ITicketService inputService = null;
ITicketService outputService = null;
try {
inputService = getService(inputServiceName, runtimeManager, repositoryManager);
outputService = getService(outputServiceName, runtimeManager, repositoryManager);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
if (!inputService.isReady()) {
System.err.println(String.format("%s INPUT service is not ready, check config.", inputService.getClass().getSimpleName()));
System.exit(1);
}
if (!outputService.isReady()) {
System.err.println(String.format("%s OUTPUT service is not ready, check config.", outputService.getClass().getSimpleName()));
System.exit(1);
}
// migrate tickets
long start = System.nanoTime();
long totalTickets = 0;
long totalChanges = 0;
for (RepositoryModel repository : repositoryManager.getRepositoryModels(null)) {
Set<Long> ids = inputService.getIds(repository);
if (ids == null || ids.isEmpty()) {
// nothing to migrate
continue;
}
// delete any tickets we may have in the output ticket service
outputService.deleteAll(repository);
for (long id : ids) {
List<Change> journal = inputService.getJournal(repository, id);
if (journal == null || journal.size() == 0) {
continue;
}
TicketModel ticket = outputService.createTicket(repository, id, journal.get(0));
if (ticket == null) {
System.err.println(String.format("Failed to migrate %s #%s", repository.name, id));
System.exit(1);
}
totalTickets++;
System.out.println(String.format("%s #%s: %s", repository.name, ticket.number, ticket.title));
for (int i = 1; i < journal.size(); i++) {
TicketModel updated = outputService.updateTicket(repository, ticket.number, journal.get(i));
if (updated != null) {
System.out.println(String.format(" applied change %d", i));
totalChanges++;
} else {
System.err.println(String.format("Failed to apply change %d:\n%s", i, journal.get(i)));
System.exit(1);
}
}
}
}
inputService.stop();
outputService.stop();
repositoryManager.stop();
runtimeManager.stop();
long end = System.nanoTime();
System.out.println(String.format("Migrated %d tickets composed of %d journal entries in %d seconds",
totalTickets, totalTickets + totalChanges, TimeUnit.NANOSECONDS.toSeconds(end - start)));
}
protected ITicketService getService(String serviceName, IRuntimeManager runtimeManager, IRepositoryManager repositoryManager) throws Exception {
ITicketService service = null;
Class<?> serviceClass = Class.forName(serviceName);
if (RedisTicketService.class.isAssignableFrom(serviceClass)) {
// Redis ticket service
service = new RedisTicketService(runtimeManager, null, null, null, repositoryManager).start();
} else if (BranchTicketService.class.isAssignableFrom(serviceClass)) {
// Branch ticket service
service = new BranchTicketService(runtimeManager, null, null, null, repositoryManager).start();
} else if (FileTicketService.class.isAssignableFrom(serviceClass)) {
// File ticket service
service = new FileTicketService(runtimeManager, null, null, null, repositoryManager).start();
} else {
System.err.println("Unknown ticket service " + serviceName);
}
return service;
}
/**
* Parameters.
*/
public static class Params {
public static String baseFolder;
@Option(name = "--help", aliases = { "-h"}, usage = "Show this help")
public Boolean help = false;
private final FileSettings FILESETTINGS = new FileSettings(new File(baseFolder, Constants.PROPERTIES_FILE).getAbsolutePath());
@Option(name = "--repositoriesFolder", usage = "Git Repositories Folder", metaVar = "PATH")
public String repositoriesFolder = FILESETTINGS.getString(Keys.git.repositoriesFolder, "git");
@Option(name = "--settings", usage = "Path to alternative settings", metaVar = "FILE")
public String settingsfile;
@Argument(index = 0, required = true, metaVar = "OUTPUTSERVICE", usage = "The destination/output ticket service")
public String outputServiceName;
}
}
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