package org.apache.maven.plugin.assembly.format;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import org.apache.maven.plugin.assembly.AssemblerConfigurationSource;
  import org.apache.maven.plugin.assembly.utils.AssemblyFileUtils;
  import org.apache.maven.shared.model.fileset.FileSet;
  import org.apache.maven.shared.model.fileset.util.FileSetManager;
  import org.codehaus.plexus.logging.Logger;
  import org.codehaus.plexus.util.FileUtils;
  
  import javax.annotation.Nonnull;
  import java.io.File;
  import java.io.IOException;
  
  /**
   * @version $Id: FileSetFormatter.java 1517906 2013-08-27 18:25:03Z krosenvold $
   */
  public class FileSetFormatter
  {
  
      private final AssemblerConfigurationSource configSource;
  
      private final Logger logger;
  
      public FileSetFormatter( AssemblerConfigurationSource configSource, Logger logger )
      {
          this.configSource = configSource;
          this.logger = logger;
      }
  
      public File formatFileSetForAssembly( @Nonnull File fileSetDir, @Nonnull org.apache.maven.plugin.assembly.model.FileSet set )
          throws AssemblyFormattingException, IOException
      {
          String lineEndingHint = set.getLineEnding();
  
          String lineEnding = AssemblyFileUtils.getLineEndingCharacters( lineEndingHint );
  
          if ( ( lineEnding != null ) || set.isFiltered() )
          {
  
              FileSet fileSet = new FileSet();
              fileSet.setLineEnding( lineEnding );
              
              fileSet.setDirectory( fileSetDir.getAbsolutePath() );
                          
              fileSet.setIncludes( set.getIncludes() );
  
              fileSet.setExcludes( set.getExcludes() );
              fileSet.setUseDefaultExcludes( true );
  
              FileSetManager fsm = new FileSetManager( logger );
              String[] files = fsm.getIncludedFiles( fileSet );
  
              // if we don't have anything to process, let's just skip all of this mess.
              if ( ( files == null ) || ( files.length == 0 ) )
              {
                  logger.info( "No files selected for line-ending conversion or filtering. Skipping: " + fileSet.getDirectory() );
              }
              else
              {
                  File formattedDir =
                      FileUtils.createTempFile( "fileSetFormatter.", ".tmp", configSource.getTemporaryRootDirectory() );
                  
                  logger.debug( "Filtering files from: " + fileSetDir + " into temp dir: " + formattedDir );
  
                  formattedDir.delete();
                  formattedDir.mkdirs();
  
                  FileFormatter fileFormatter = new FileFormatter( configSource, logger );
                  for (String file : files) {
                      logger.debug("Filtering: " + file);
  
                      File targetFile = new File(formattedDir, file);
  
                      targetFile.getParentFile().mkdirs();
  
                      File sourceFile = new File(fileSetDir, file);
                      try {
                          sourceFile =
                                  fileFormatter.format(sourceFile, set.isFiltered(), lineEndingHint, formattedDir,
                                          configSource.getEncoding());
                         AssemblyFileUtils.copyFile(sourceFile, targetFile);
                     } catch (AssemblyFormattingException e) {
                         deleteDirectory(formattedDir);
                         throw e;
                     } catch (IOException e) {
                         deleteDirectory(formattedDir);
                         throw e;
                     }
                 }
                 return formattedDir;
             }
         }
         else
         {
             logger.debug( "NOT reformatting any files in " + fileSetDir );
         }
 
         return fileSetDir;
     }
 
     private static void deleteDirectory( File formattedDir )
     {
         try
         {
             FileUtils.deleteDirectory( formattedDir );
         }
         catch ( IOException e1 )
         {
             // ignore
         }
     }
 
 }