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Java > Open Source Codes > org > apache > tools > ant > taskdefs > optional > perforce > P4Revert


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 /*
19  * Portions of this software are based upon public domain software
20  * originally written at the National Center for Supercomputing Applications,
21  * University of Illinois, Urbana-Champaign.
22  */
23
24 package org.apache.tools.ant.taskdefs.optional.perforce;
25
26 import org.apache.tools.ant.BuildException;
27
28 /**
29  * Revert Perforce open files or files in a changelist
30  *
31  * @ant.task category="scm"
32  */
33 public class P4Revert extends P4Base {
34
35     private String JavaDoc revertChange = null;
36     private boolean onlyUnchanged = false;
37
38     /**
39      * The changelist to revert; optional.
40      * @param revertChange : the change list to revert
41      * @throws BuildException if the change list is null or empty string
42      */
43     public void setChange(String JavaDoc revertChange) throws BuildException {
44         if (revertChange == null || revertChange.equals("")) {
45             throw new BuildException("P4Revert: change cannot be null or empty");
46         }
47
48         this.revertChange = revertChange;
49
50     }
51
52     /**
53      * flag to revert only unchanged files (p4 revert -a); optional, default false.
54      * @param onlyUnchanged if set to true revert only unchanged files
55      */
56     public void setRevertOnlyUnchanged(boolean onlyUnchanged) {
57         this.onlyUnchanged = onlyUnchanged;
58     }
59
60     /**
61      * do the work
62      * @throws BuildException if an error occurs during the execution of the Perforce command
63      * and failonError is set to true
64      */
65     public void execute() throws BuildException {
66
67         /* Here we can either revert any unchanged files in a changelist
68          * or
69          * any files regardless of whether they have been changed or not
70          *
71          *
72          * The whole process also accepts a p4 filespec
73          */
74         String JavaDoc p4cmd = "-s revert";
75         if (onlyUnchanged) {
76             p4cmd += " -a";
77         }
78
79         if (revertChange != null) {
80             p4cmd += " -c " + revertChange;
81         }
82
83         execP4Command(p4cmd + " " + P4View, new SimpleP4OutputHandler(this));
84     }
85 }
86
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