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1   /*
2    * #%L
3    * JavaHg
4    * %%
5    * Copyright (C) 2011 aragost Trifork ag
6    * %%
7    * Permission is hereby granted, free of charge, to any person obtaining a copy
8    * of this software and associated documentation files (the "Software"), to deal
9    * in the Software without restriction, including without limitation the rights
10   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11   * copies of the Software, and to permit persons to whom the Software is
12   * furnished to do so, subject to the following conditions:
13   * 
14   * The above copyright notice and this permission notice shall be included in
15   * all copies or substantial portions of the Software.
16   * 
17   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23   * THE SOFTWARE.
24   * #L%
25   */
26  package com.aragost.javahg.commands;
27  
28  import java.io.IOException;
29  
30  import com.aragost.javahg.Repository;
31  import com.aragost.javahg.commands.flags.BackoutCommandFlags;
32  import com.aragost.javahg.internals.RuntimeIOException;
33  import com.aragost.javahg.merge.BackoutConflictResolvingContext;
34  
35  /**
36   * Command class for executing <tt>hg backout</tt>. Set flags from
37   * {@link BackoutCommandFlags}.
38   */
39  public class BackoutCommand extends BackoutCommandFlags {
40  
41      private boolean merge;
42  
43      /**
44       * @param repository
45       *            the repository associated with this command.
46       */
47      public BackoutCommand(Repository repository) {
48          super(repository);
49      }
50  
51      @Override
52      public BackoutCommand merge() {
53          this.merge = true;
54          return super.merge();
55      }
56  
57      /**
58       * Execute the backout.
59       * 
60       * @return Merge context
61       */
62      public BackoutConflictResolvingContext execute() {
63          try {
64              BackoutConflictResolvingContext result = new BackoutConflictResolvingContext(this, merge);
65              result.processStream(launchStream("-y", "--tool", "internal:fail"),
66                      false);
67              return result;
68          } catch (IOException e) {
69              throw new RuntimeIOException(e);
70          }
71      }
72  
73      @Override
74      public boolean isSuccessful() {
75          return super.isSuccessful() || getReturnCode() == 1;
76      }
77  }