Main.java

/**
 * This file is part of git-as-svn. It is subject to the license terms
 * in the LICENSE file found in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/gpl-2.0.html. No part of git-as-svn,
 * including this file, may be copied, modified, propagated, or distributed
 * except according to the terms contained in the LICENSE file.
 */
package svnserver.server;

import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.tmatesoft.svn.core.SVNException;
import svnserver.VersionInfo;
import svnserver.config.Config;
import svnserver.config.serializer.ConfigSerializer;

import java.io.File;
import java.io.IOException;

/**
 * Entry point.
 *
 * @author a.navrotskiy
 */
public class Main {
  @NotNull
  private static final Logger log = LoggerFactory.getLogger(SvnServer.class);

  public static void main(@NotNull String[] args) throws IOException, SVNException, InterruptedException {
    try {
      log.info("Git as svn version: {}", VersionInfo.getVersionInfo());
      final CmdArgs cmd = new CmdArgs();
      final JCommander jc = new JCommander(cmd);
      jc.parse(args);
      if (cmd.help) {
        jc.usage();
        return;
      }
      // Load config
      ConfigSerializer serializer = new ConfigSerializer(cmd.unsafeConfig);
      Config config = serializer.load(cmd.configuration);
      if (cmd.showConfig) {
        log.info("Actual config:\n{}", serializer.dump(config));
      }
      final SvnServer server = new SvnServer(cmd.configuration.getAbsoluteFile().getParentFile(), config);
      server.start();
      Runtime.getRuntime().addShutdownHook(new Thread(() -> {
        try {
          server.shutdown(config.getShutdownTimeout());
        } catch (IOException | InterruptedException e) {
          log.error("Can't shutdown correctly", e);
        }
      }));
      server.join();
    } catch (Throwable e) {
      log.error("Fatal error: " + e.getMessage(), e);
      throw e;
    }
  }

  public static class CmdArgs {
    @Parameter(names = {"-c", "--config"}, description = "Configuration file name", required = true)
    @NotNull
    private File configuration;

    @Parameter(names = {"-s", "--show-config"}, description = "Show actual configuration on start")
    private boolean showConfig = false;

    @Parameter(names = {"--unsafe"}, description = "Allow unsafe developer-only configuration options")
    private boolean unsafeConfig = false;

    @Parameter(names = {"-h", "--help"}, description = "Show help", help = true)
    private boolean help = false;
  }

}