| 1 | /*
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| 2 | * Copyright 2002-2004 The Apache Software Foundation
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | *
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| 16 | */
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| 17 |
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| 18 | /*
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| 19 | * Since the initial version of this file was deveolped on the clock on
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| 20 | * an NSF grant I should say the following boilerplate:
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| 21 | *
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| 22 | * This material is based upon work supported by the National Science
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| 23 | * Foundaton under Grant No. EIA-0196404. Any opinions, findings, and
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| 24 | * conclusions or recommendations expressed in this material are those
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| 25 | * of the author and do not necessarily reflect the views of the
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| 26 | * National Science Foundation.
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| 27 | */
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| 28 |
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| 29 | package org.apache.tools.ant.taskdefs.optional.unix;
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| 30 |
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| 31 | import org.apache.tools.ant.BuildException;
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| 32 |
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| 33 | /**
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| 34 | * Chgrp equivalent for unix-like environments.
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| 35 | *
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| 36 | *
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| 37 | * @since Ant 1.6
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| 38 | *
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| 39 | * @ant.task category="filesystem"
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| 40 | */
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| 41 | public class Chgrp extends AbstractAccessTask {
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| 42 |
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| 43 | private boolean haveGroup = false;
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| 44 |
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| 45 | /**
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| 46 | * Chgrp task for setting unix group of a file.
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| 47 | */
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| 48 | public Chgrp() {
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| 49 | super.setExecutable("chgrp");
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| 50 | }
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| 51 |
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| 52 | /**
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| 53 | * Set the group atribute.
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| 54 | *
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| 55 | * @param group The new group for the file(s) or directory(ies)
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| 56 | */
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| 57 | public void setGroup(String group) {
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| 58 | createArg().setValue(group);
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| 59 | haveGroup = true;
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| 60 | }
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| 61 |
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| 62 | /**
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| 63 | * Ensure that all the required arguments and other conditions have
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| 64 | * been set.
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| 65 | */
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| 66 | protected void checkConfiguration() {
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| 67 | if (!haveGroup) {
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| 68 | throw new BuildException("Required attribute group not set in "
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| 69 | + "chgrp", getLocation());
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| 70 | }
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| 71 | super.checkConfiguration();
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| 72 | }
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| 73 |
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| 74 | /**
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| 75 | * We don't want to expose the executable atribute, so overide it.
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| 76 | *
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| 77 | * @param e User supplied executable that we won't accept.
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| 78 | */
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| 79 | public void setExecutable(String e) {
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| 80 | throw new BuildException(getTaskType()
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| 81 | + " doesn\'t support the executable"
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| 82 | + " attribute", getLocation());
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| 83 | }
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| 84 | }
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