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| 3 | <head>
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| 4 | <meta http-equiv="Content-Language" content="en-us">
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| 5 | <title>Chgrp Task</title>
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| 6 | <link rel="stylesheet" type="text/css" href="../stylesheets/antmanual.css">
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| 7 | </head>
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| 8 |
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| 9 | <body>
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| 10 |
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| 11 | <h2><a name="Chgrp">Chgrp</a></h2>
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| 12 | <p><em>Since Ant 1.6.</em></p>
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| 13 | <h3>Description</h3>
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| 14 |
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| 15 | <p>Changes the group of a file or all files inside specified
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| 16 | directories. Right now it has effect only under Unix. The group
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| 17 | atribute is equivalent to the coresponding argument for the chgrp
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| 18 | command.</p>
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| 19 |
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| 20 | <p><a href="../CoreTypes/fileset.html">FileSet</a>s,
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| 21 | <a href="../CoreTypes/dirset.html">DirSet</a>s or <a
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| 22 | href="../CoreTypes/filelist.html">FileList</a>s can be specified using
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| 23 | nested <code><fileset></code>, <code><dirset></code> and
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| 24 | <code><filelist></code> elements.</p>
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| 25 |
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| 26 | <p>By default this task will use a single invocation of the underlying
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| 27 | chgrp command. If you are working on a large number of files this may
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| 28 | result in a command line that is too long for your operating system.
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| 29 | If you encounter such problems, you should set the maxparallel
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| 30 | attribute of this task to a non-zero value. The number to use highly
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| 31 | depends on the length of your file names (the depth of your directory
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| 32 | tree) and your operating system, so you'll have to experiment a
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| 33 | little. POSIX recommends command line length limits of at least 4096
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| 34 | characters, this may give you an approximation for the number you
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| 35 | could use as initial value for these experiments.</p>
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| 36 |
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| 37 | <h3>Parameters</h3>
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| 38 | <table border="1" cellpadding="2" cellspacing="0">
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| 39 | <tr>
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| 40 | <td valign="top"><b>Attribute</b></td>
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| 41 | <td valign="top"><b>Description</b></td>
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| 42 | <td align="center" valign="top"><b>Required</b></td>
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| 43 | </tr>
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| 44 | <tr>
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| 45 | <td valign="top">file</td>
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| 46 | <td valign="top">the file or directory of which the group must be
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| 47 | changed.</td>
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| 48 | <td valign="top" valign="middle">Yes or nested
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| 49 | <code><fileset/list></code> elements.</td>
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| 50 | </tr>
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| 51 | <tr>
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| 52 | <td valign="top">group</td>
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| 53 | <td valign="top">the new group.</td>
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| 54 | <td valign="top" align="center">Yes</td>
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| 55 | </tr>
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| 56 | <tr>
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| 57 | <td valign="top">parallel</td>
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| 58 | <td valign="top">process all specified files using a single
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| 59 | <code>chgrp</code> command. Defaults to true.</td>
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| 60 | <td valign="top" align="center">No</td>
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| 61 | </tr>
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| 62 | <tr>
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| 63 | <td valign="top">type</td>
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| 64 | <td valign="top">One of <i>file</i>, <i>dir</i> or
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| 65 | <i>both</i>. If set to <i>file</i>, only the group of
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| 66 | plain files are going to be changed. If set to <i>dir</i>, only
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| 67 | the directories are considered.<br>
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| 68 | <strong>Note:</strong> The type attribute does not apply to
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| 69 | nested <i>dirset</i>s - <i>dirset</i>s always implicitly
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| 70 | assume type to be <i>dir</i>.</td>
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| 71 | <td align="center" valign="top">No, default is <i>file</i></td>
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| 72 | </tr>
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| 73 | <tr>
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| 74 | <td valign="top">maxparallel</td>
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| 75 | <td valign="top">Limit the amount of parallelism by passing at
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| 76 | most this many sourcefiles at once. Set it to <= 0 for
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| 77 | unlimited. Defaults to unlimited.</td>
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| 78 | <td align="center" valign="top">No</td>
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| 79 |
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| 80 | </tr>
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| 81 | <tr>
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| 82 | <td valign="top">verbose</td>
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| 83 | <td valign="top">Whether to print a summary after execution or not.
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| 84 | Defaults to <code>false</code>.</td>
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| 85 | <td align="center" valign="top">No</td>
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| 86 | </tr>
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| 87 |
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| 88 | </table>
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| 89 | <h3>Examples</h3>
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| 90 | <blockquote>
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| 91 | <p><code><chgrp file="${dist}/start.sh" group="coders"/></code></p>
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| 92 | </blockquote>
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| 93 | <p>makes the "start.sh" file belong to the coders group on a
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| 94 | UNIX system.</p>
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| 95 | <blockquote>
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| 96 | <pre>
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| 97 | <chgrp group="coders">
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| 98 | <fileset dir="${dist}/bin" includes="**/*.sh"/>
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| 99 | </chgrp>
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| 100 | </pre>
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| 101 | </blockquote>
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| 102 | <p>makes all ".sh" files below <code>${dist}/bin</code>
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| 103 | belong to the coders group on a UNIX system.</p>
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| 104 | <blockquote>
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| 105 | <pre>
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| 106 | <chgrp group="coders">
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| 107 | <fileset dir="shared/sources1">
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| 108 | <exclude name="**/trial/**"/>
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| 109 | </fileset>
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| 110 | <fileset refid="other.shared.sources"/>
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| 111 | </chgrp>
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| 112 | </pre>
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| 113 | </blockquote>
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| 114 | <p>makes all files below <code>shared/sources1</code> (except those
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| 115 | below any directory named trial) belong to the coders group on a UNIX
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| 116 | system. In addition all files belonging to a FileSet
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| 117 | with <code>id</code> <code>other.shared.sources</code> get the same
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| 118 | group.</p>
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| 119 |
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| 120 | <blockquote>
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| 121 | <pre>
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| 122 | <chgrp group="webdev" type="file">
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| 123 | <fileset dir="/web">
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| 124 | <include name="**/*.test.jsp"/>
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| 125 | <include name="**/*.new"/>
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| 126 | </fileset>
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| 127 | <dirset dir="/web">
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| 128 | <include name="**/test_*"/>
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| 129 | </dirset>
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| 130 | </chmod>
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| 131 | </pre>
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| 132 | </blockquote>
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| 133 |
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| 134 | <p>makes all <code>.test.jsp</code>, and <code>.new</code> files belong to
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| 135 | group webdev. Directories beginning with <code>test_</code> also will belong
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| 136 | to webdev, but if there is a directory that ends in <code>.new</code> or a file
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| 137 | that begins with <code>test_</code> it will be unaffected.</p>
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| 138 |
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| 139 |
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| 140 | <hr>
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| 141 | <p align="center">Copyright © 2002-2004 The Apache Software
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| 142 | Foundation. All rights Reserved.</p>
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| 143 |
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| 144 | </body>
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| 145 | </html>
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| 146 |
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