001/* 002 * Syncany, www.syncany.org 003 * Copyright (C) 2011-2016 Philipp C. Heckel <philipp.heckel@gmail.com> 004 * 005 * This program is free software: you can redistribute it and/or modify 006 * it under the terms of the GNU General Public License as published by 007 * the Free Software Foundation, either version 3 of the License, or 008 * (at your option) any later version. 009 * 010 * This program is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 013 * GNU General Public License for more details. 014 * 015 * You should have received a copy of the GNU General Public License 016 * along with this program. If not, see <http://www.gnu.org/licenses/>. 017 */ 018package org.syncany.operations.down.actions; 019 020import org.syncany.config.Config; 021import org.syncany.database.FileVersion; 022import org.syncany.database.FileVersionComparator.FileChange; 023import org.syncany.database.FileVersionComparator.FileVersionComparison; 024import org.syncany.database.MemoryDatabase; 025import org.syncany.util.CollectionUtil; 026 027public class NewSymlinkFileSystemAction extends FileSystemAction { 028 public NewSymlinkFileSystemAction(Config config, FileVersion newFileVersion, MemoryDatabase winningDatabase) { 029 super(config, winningDatabase, null, newFileVersion); 030 } 031 032 @Override 033 public FileSystemActionResult execute() throws Exception { 034 if (fileExists(fileVersion2)) { 035 FileVersionComparison fileComparison = fileChanges(fileVersion2); 036 037 if (fileComparison.areEqual()) { 038 // Nothing to do. 039 } 040 else if (CollectionUtil.containsOnly(fileComparison.getFileChanges(), FileChange.CHANGED_LINK_TARGET)) { 041 deleteFile(fileVersion2); 042 createSymlink(fileVersion2); 043 } 044 else { 045 moveToConflictFile(fileVersion2); 046 createSymlink(fileVersion2); 047 } 048 } 049 else { 050 createSymlink(fileVersion2); 051 } 052 053 return new FileSystemActionResult(); 054 } 055 056 @Override 057 public String toString() { 058 return "NewSymlinkFileSystemAction [file1=" + fileVersion1 + ", file2=" + fileVersion2 + "]"; 059 } 060}