Package org.syncany.cli

Source Code of org.syncany.cli.DownCommand

/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2014 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.syncany.cli;

import static java.util.Arrays.asList;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import joptsimple.OptionParser;
import joptsimple.OptionSet;
import joptsimple.OptionSpec;

import org.syncany.operations.ChangeSet;
import org.syncany.operations.OperationResult;
import org.syncany.operations.daemon.messages.DownDownloadFileSyncExternalEvent;
import org.syncany.operations.daemon.messages.LsRemoteStartSyncExternalEvent;
import org.syncany.operations.down.DownOperationOptions;
import org.syncany.operations.down.DownOperationOptions.DownConflictStrategy;
import org.syncany.operations.down.DownOperationResult;
import org.syncany.operations.down.DownOperationResult.DownResultCode;

import com.google.common.eventbus.Subscribe;

public class DownCommand extends Command {
  @Override
  public CommandScope getRequiredCommandScope() { 
    return CommandScope.INITIALIZED_LOCALDIR;
  }
 
  @Override
  public boolean canExecuteInDaemonScope() {
    return false;
  }
 
  @Override
  public int execute(String[] operationArgs) throws Exception {
    DownOperationOptions operationOptions = parseOptions(operationArgs);   
    DownOperationResult operationResult = client.down(operationOptions);   
   
    printResults(operationResult);
   
    return 0;
  }

  public DownOperationOptions parseOptions(String[] operationArguments) {
    DownOperationOptions operationOptions = new DownOperationOptions();

    OptionParser parser = new OptionParser();
    parser.allowsUnrecognizedOptions();

    OptionSpec<String> optionConflictStrategy = parser.acceptsAll(asList("C", "conflict-strategy")).withRequiredArg();
    OptionSpec<Void> optionNoApply = parser.acceptsAll(asList("A", "no-apply"));

    OptionSet options = parser.parse(operationArguments);

    // --conflict-strategy=<strategy>
    if (options.has(optionConflictStrategy)) {
      String conflictStrategyStr = options.valueOf(optionConflictStrategy).toUpperCase();
      operationOptions.setConflictStrategy(DownConflictStrategy.valueOf(conflictStrategyStr));
    }
   
    // --no-apply
    if (options.has(optionNoApply)) {
      operationOptions.setApplyChanges(false);
    }

    return operationOptions;
  }

  @Override
  public void printResults(OperationResult operationResult) {
    DownOperationResult concreteOperationResult = (DownOperationResult) operationResult;
   
    if (concreteOperationResult.getResultCode() == DownResultCode.OK_WITH_REMOTE_CHANGES) {
      ChangeSet changeSet = concreteOperationResult.getChangeSet();
     
      if (changeSet.hasChanges()) {
        List<String> newFiles = new ArrayList<String>(changeSet.getNewFiles());
        List<String> changedFiles = new ArrayList<String>(changeSet.getChangedFiles());
        List<String> deletedFiles = new ArrayList<String>(changeSet.getDeletedFiles());
       
        Collections.sort(newFiles);
        Collections.sort(changedFiles);
        Collections.sort(deletedFiles);
       
        for (String newFile : newFiles) {
          out.println("A "+newFile);
        }
   
        for (String changedFile : changedFiles) {
          out.println("M "+changedFile);
        }
       
        for (String deletedFile : deletedFiles) {
          out.println("D "+deletedFile);
        }   
      }
      else {
        out.println(concreteOperationResult.getDownloadedUnknownDatabases().size() + " database file(s) processed.");
      }
     
      out.println("Sync down finished.");
    }
    else {
      out.println("Sync down skipped, no remote changes.");
    }
  }
 
  @Subscribe
  public void onLsRemoteStartEventReceived(LsRemoteStartSyncExternalEvent syncEvent) {
    out.printr("Checking remote changes ...");
  }
 
  @Subscribe
  public void onSyncEventReceived(DownDownloadFileSyncExternalEvent syncEvent) {
    String fileDescription = syncEvent.getFileDescription();
    int currentFileIndex = syncEvent.getCurrentFileIndex();
    int maxFileCount = syncEvent.getMaxFileCount();
   
    out.printr("Downloading " + fileDescription + " "+ currentFileIndex + "/" + maxFileCount + " ...");     
  }
}
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