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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>Chown 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="Chown">Chown</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 owner of a file or all files inside specified
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| 16 | directories. Right now it has effect only under Unix. The owner
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| 17 | attribute is equivalent to the corresponding argument for the chown
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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 |
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| 27 | <p>By default this task will use a single invocation of the underlying
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| 28 | chown command. If you are working on a large number of files this may
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| 29 | result in a command line that is too long for your operating system.
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| 30 | If you encounter such problems, you should set the maxparallel
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| 31 | attribute of this task to a non-zero value. The number to use highly
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| 32 | depends on the length of your file names (the depth of your directory
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| 33 | tree) and your operating system, so you'll have to experiment a
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| 34 | little. POSIX recommends command line length limits of at least 4096
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| 35 | characters, this may give you an approximation for the number you
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| 36 | could use as initial value for these experiments.</p>
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| 37 |
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| 38 | <h3>Parameters</h3>
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| 39 | <table border="1" cellpadding="2" cellspacing="0">
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| 40 | <tr>
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| 41 | <td valign="top"><b>Attribute</b></td>
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| 42 | <td valign="top"><b>Description</b></td>
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| 43 | <td align="center" valign="top"><b>Required</b></td>
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| 44 | </tr>
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| 45 | <tr>
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| 46 | <td valign="top">file</td>
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| 47 | <td valign="top">the file or directory of which the owner must be
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| 48 | changed.</td>
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| 49 | <td valign="top" valign="middle">Yes or nested
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| 50 | <code><fileset/list></code> elements.</td>
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| 51 | </tr>
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| 52 | <tr>
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| 53 | <td valign="top">owner</td>
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| 54 | <td valign="top">the new owner.</td>
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| 55 | <td valign="top" align="center">Yes</td>
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| 56 | </tr>
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| 57 | <tr>
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| 58 | <td valign="top">parallel</td>
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| 59 | <td valign="top">process all specified files using a single
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| 60 | <code>chown</code> command. Defaults to true.</td>
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| 61 | <td valign="top" align="center">No</td>
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| 62 | </tr>
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| 63 | <tr>
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| 64 | <td valign="top">type</td>
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| 65 | <td valign="top">One of <i>file</i>, <i>dir</i> or
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| 66 | <i>both</i>. If set to <i>file</i>, only the owner of
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| 67 | plain files are going to be changed. If set to <i>dir</i>, only
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| 68 | the directories are considered.<br>
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| 69 | <strong>Note:</strong> The type attribute does not apply to
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| 70 | nested <i>dirset</i>s - <i>dirset</i>s always implicitly
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| 71 | assume type to be <i>dir</i>.</td>
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| 72 | <td align="center" valign="top">No, default is <i>file</i></td>
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| 73 | </tr>
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| 74 | <tr>
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| 75 | <td valign="top">maxparallel</td>
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| 76 | <td valign="top">Limit the amount of parallelism by passing at
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| 77 | most this many sourcefiles at once. Set it to <= 0 for
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| 78 | unlimited. Defaults to unlimited.</td>
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| 79 | <td align="center" valign="top">No</td>
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| 80 |
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| 81 | </tr>
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| 82 | <tr>
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| 83 | <td valign="top">verbose</td>
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| 84 | <td valign="top">Whether to print a summary after execution or not.
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| 85 | Defaults to <code>false</code>.</td>
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| 86 | <td align="center" valign="top">No</td>
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| 87 | </tr>
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| 88 |
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| 89 | </table>
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| 90 | <h3>Examples</h3>
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| 91 | <blockquote>
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| 92 | <p><code><chown file="${dist}/start.sh" owner="coderjoe"/></code></p>
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| 93 | </blockquote>
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| 94 | <p>makes the "start.sh" file belong to coderjoe on a
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| 95 | UNIX system.</p>
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| 96 | <blockquote>
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| 97 | <pre>
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| 98 | <chown owner="coderjoe">
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| 99 | <fileset dir="${dist}/bin" includes="**/*.sh"/>
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| 100 | </chown>
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| 101 | </pre>
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| 102 | </blockquote>
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| 103 | <p>makes all ".sh" files below <code>${dist}/bin</code>
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| 104 | belong to coderjoe on a UNIX system.</p>
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| 105 | <blockquote>
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| 106 | <pre>
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| 107 | <chown owner="coderjoe">
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| 108 | <fileset dir="shared/sources1">
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| 109 | <exclude name="**/trial/**"/>
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| 110 | </fileset>
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| 111 | <fileset refid="other.shared.sources"/>
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| 112 | </chown>
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| 113 | </pre>
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| 114 | </blockquote>
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| 115 | <p>makes all files below <code>shared/sources1</code> (except those
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| 116 | below any directory named trial) belong to coderjoe on a UNIX
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| 117 | system. In addition all files belonging to a FileSet
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| 118 | with <code>id</code> <code>other.shared.sources</code> get the same
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| 119 | owner.</p>
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| 120 |
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| 121 | <blockquote>
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| 122 | <pre>
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| 123 | <chown owner="webadmin" type="file">
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| 124 | <fileset dir="/web">
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| 125 | <include name="**/*.cgi"/>
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| 126 | <include name="**/*.old"/>
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| 127 | </fileset>
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| 128 | <dirset dir="/web">
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| 129 | <include name="**/private_*"/>
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| 130 | </dirset>
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| 131 | </chmod>
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| 132 | </pre>
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| 133 | </blockquote>
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| 134 |
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| 135 | <p>makes cgi scripts, files with a <code>.old</code> extension or
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| 136 | directories beginning with <code>private_</code> belong to the user named
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| 137 | webadmin. A directory ending in <code>.old</code> or a file beginning with
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| 138 | <code>private_</code> would remain unaffected.</p>
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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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