/*
    * 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.
   */
  package org.apache.maven.scm.provider.git.gitexe.command.remove;
  
  import java.io.File;
  import java.net.URI;
  import java.util.List;
  
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.ScmResult;
  import org.apache.maven.scm.command.remove.AbstractRemoveCommand;
  import org.apache.maven.scm.command.remove.RemoveScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.git.command.GitCommand;
  import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils;
  import org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusCommand;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /**
   * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a>
   * @author Olivier Lamy
   *
   */
  public class GitRemoveCommand extends AbstractRemoveCommand implements GitCommand {
      /**
       * {@inheritDoc}
       */
      protected ScmResult executeRemoveCommand(ScmProviderRepository repo, ScmFileSet fileSet, String message)
              throws ScmException {
  
          if (fileSet.getFileList().isEmpty()) {
              throw new ScmException("You must provide at least one file/directory to remove");
          }
  
          Commandline cl = createCommandLine(fileSet.getBasedir(), fileSet.getFileList());
  
          // git-rm uses repositoryRoot instead of workingDirectory, adjust it with relativeRepositoryPath
          URI relativeRepositoryPath = GitStatusCommand.getRelativeCWD(logger, fileSet);
          GitRemoveConsumer consumer = new GitRemoveConsumer(relativeRepositoryPath);
  
          CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();
  
          int exitCode;
  
          exitCode = GitCommandLineUtils.execute(cl, consumer, stderr);
          if (exitCode != 0) {
              return new RemoveScmResult(cl.toString(), "The git command failed.", stderr.getOutput(), false);
          }
  
          return new RemoveScmResult(cl.toString(), consumer.getRemovedFiles());
      }
  
      public static Commandline createCommandLine(File workingDirectory, List<File> files) throws ScmException {
          Commandline cl = GitCommandLineUtils.getBaseGitCommandLine(workingDirectory, "rm");
  
          for (File file : files) {
              if (file.isAbsolute()) {
                  if (file.isDirectory()) {
                      cl.createArg().setValue("-r");
                      break;
                  }
              } else {
                  File absFile = new File(workingDirectory, file.getPath());
                  if (absFile.isDirectory()) {
                      cl.createArg().setValue("-r");
                      break;
                  }
              }
          }
  
          // use this separator to make clear that the following parameters are files and options.
          cl.createArg().setValue("--");
  
          GitCommandLineUtils.addTarget(cl, files);
  
          return cl;
      }
  }