/*

  * #%L

  * JavaHg

  * %%

  * Copyright (C) 2011 aragost Trifork ag

  * %%

  * Permission is hereby granted, free of charge, to any person obtaining a copy

  * of this software and associated documentation files (the "Software"), to deal

  * in the Software without restriction, including without limitation the rights

  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  * copies of the Software, and to permit persons to whom the Software is

  * furnished to do so, subject to the following conditions:

  * 

  * The above copyright notice and this permission notice shall be included in

  * all copies or substantial portions of the Software.

  * 

  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

  * THE SOFTWARE.

  * #L%

  */

 package com.aragost.javahg.commands;

 import java.io.IOException;

 import com.aragost.javahg.Repository;

 import com.aragost.javahg.commands.flags.BackoutCommandFlags;

 import com.aragost.javahg.internals.RuntimeIOException;

 import com.aragost.javahg.merge.BackoutConflictResolvingContext;

 /**

  * Command class for executing <tt>hg backout</tt>. Set flags from

  * {@link BackoutCommandFlags}.

  */

 public class BackoutCommand extends BackoutCommandFlags {

     private boolean merge;

     /**

      * @param repository

      *            the repository associated with this command.

      */

     public BackoutCommand(Repository repository) {

         super(repository);

     }

     @Override

     public BackoutCommand merge() {

         this.merge = true;

         return super.merge();

     }

     /**

      * Execute the backout.

      * 

      * @return Merge context

      */

     public BackoutConflictResolvingContext execute() {

         try {

             BackoutConflictResolvingContext result = new BackoutConflictResolvingContext(this, merge);

             result.processStream(launchStream("-y", "--tool", "internal:fail"),

                     false);

             return result;

         } catch (IOException e) {

             throw new RuntimeIOException(e);

         }

     }

     @Override

     public boolean isSuccessful() {

         return super.isSuccessful() || getReturnCode() == 1;

     }

 }