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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>Chmod 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="chmod">Chmod</a></h2>
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| 12 | <h3>Description</h3>
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| 13 | <p>Changes the permissions of a file or all files inside specified
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| 14 | directories. Right now it has effect only under Unix or NonStop Kernel (Tandem).
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| 15 | The permissions are also UNIX style, like the argument for the chmod command.</p>
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| 16 | <p>See the section on <a href="../dirtasks.html#directorybasedtasks">directory based
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| 17 | tasks</a>, on how the inclusion/exclusion of files works, and how to
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| 18 | write patterns.</p>
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| 19 |
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| 20 | <p>This task holds an implicit <a
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| 21 | href="../CoreTypes/fileset.html">FileSet</a> and supports all of
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| 22 | FileSet's attributes and nested elements directly. More sets can be
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| 23 | specified using nested <code><fileset></code> or
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| 24 | <code><dirset></code> (<em>since Ant 1.6</em>) elements. </p>
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| 25 |
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| 26 | <p>Starting with Ant 1.6, this task also supports nested <a
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| 27 | href="../CoreTypes/filelist.html">filelist</a>s.</p>
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| 28 |
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| 29 | <p>By default this task will use a single invocation of the underlying
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| 30 | chmod command. If you are working on a large number of files this may
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| 31 | result in a command line that is too long for your operating system.
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| 32 | If you encounter such problems, you should set the maxparallel
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| 33 | attribute of this task to a non-zero value. The number to use highly
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| 34 | depends on the length of your file names (the depth of your directory
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| 35 | tree) and your operating system, so you'll have to experiment a
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| 36 | little. POSIX recommends command line length limits of at least 4096
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| 37 | characters, this may give you an approximation for the number you
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| 38 | could use as initial value for these experiments.</p>
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| 39 |
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| 40 | <h3>Parameters</h3>
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| 41 | <table border="1" cellpadding="2" cellspacing="0">
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| 42 | <tr>
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| 43 | <td valign="top"><b>Attribute</b></td>
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| 44 | <td valign="top"><b>Description</b></td>
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| 45 | <td align="center" valign="top"><b>Required</b></td>
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| 46 | </tr>
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| 47 | <tr>
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| 48 | <td valign="top">file</td>
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| 49 | <td valign="top">the file or single directory of which the permissions
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| 50 | must be changed.</td>
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| 51 | <td valign="top" valign="middle" rowspan="2">exactly one of the two or nested <code><fileset/list></code> elements.</td>
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| 52 | </tr>
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| 53 | <tr>
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| 54 | <td valign="top">dir</td>
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| 55 | <td valign="top">the directory which holds the files whose permissions
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| 56 | must be changed.</td>
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| 57 | </tr>
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| 58 | <tr>
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| 59 | <td valign="top">perm</td>
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| 60 | <td valign="top">the new permissions.</td>
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| 61 | <td valign="top" align="center">Yes</td>
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| 62 | </tr>
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| 63 | <tr>
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| 64 | <td valign="top">includes</td>
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| 65 | <td valign="top">comma- or space-separated list of patterns of files that must be
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| 66 | included.</td>
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| 67 | <td valign="top" align="center">No</td>
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| 68 | </tr>
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| 69 | <tr>
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| 70 | <td valign="top">excludes</td>
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| 71 | <td valign="top">comma- or space-separated list of patterns of files that must be
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| 72 | excluded. No files (except default excludes) are excluded when omitted.</td>
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| 73 | <td valign="top" align="center">No</td>
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| 74 | </tr>
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| 75 | <tr>
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| 76 | <td valign="top">defaultexcludes</td>
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| 77 | <td valign="top">indicates whether default excludes should be used or not
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| 78 | ("yes"/"no"). Default excludes are used when omitted.</td>
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| 79 | <td valign="top" align="center">No</td>
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| 80 | </tr>
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| 81 | <tr>
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| 82 | <td valign="top">parallel</td>
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| 83 | <td valign="top">process all specified files using a single
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| 84 | <code>chmod</code> command. Defaults to true.</td>
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| 85 | <td valign="top" align="center">No</td>
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| 86 | </tr>
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| 87 | <tr>
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| 88 | <td valign="top">type</td>
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| 89 | <td valign="top">One of <i>file</i>, <i>dir</i> or
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| 90 | <i>both</i>. If set to <i>file</i>, only the permissions of
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| 91 | plain files are going to be changed. If set to <i>dir</i>, only
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| 92 | the directories are considered.<br>
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| 93 | <strong>Note:</strong> The type attribute does not apply to
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| 94 | nested <i>dirset</i>s - <i>dirset</i>s always implicitly
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| 95 | assume type to be <i>dir</i>.</td>
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| 96 | <td align="center" valign="top">No, default is <i>file</i></td>
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| 97 | </tr>
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| 98 | <tr>
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| 99 | <td valign="top">maxparallel</td>
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| 100 | <td valign="top">Limit the amount of parallelism by passing at
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| 101 | most this many sourcefiles at once. Set it to <= 0 for
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| 102 | unlimited. Defaults to unlimited. <em>Since Ant 1.6.</em></td>
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| 103 | <td align="center" valign="top">No</td>
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| 104 | </tr>
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| 105 | <tr>
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| 106 | <td valign="top">verbose</td>
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| 107 | <td valign="top">Whether to print a summary after execution or not.
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| 108 | Defaults to <code>false</code>. <em>Since Ant 1.6.</em></td>
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| 109 | <td align="center" valign="top">No</td>
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| 110 | </tr>
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| 111 | </table>
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| 112 | <h3>Examples</h3>
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| 113 | <blockquote><pre>
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| 114 | <chmod file="${dist}/start.sh" perm="ugo+rx"/>
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| 115 | </pre></blockquote>
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| 116 | <p>makes the "start.sh" file readable and executable for anyone on a
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| 117 | UNIX system.</p>
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| 118 | <blockquote><pre>
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| 119 | <chmod file="${dist}/start.sh" perm="700"/>
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| 120 | </pre></blockquote>
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| 121 | <p>makes the "start.sh" file readable, writable and executable only for the owner on a
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| 122 | UNIX system.</p>
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| 123 | <blockquote>
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| 124 | <pre>
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| 125 | <chmod dir="${dist}/bin" perm="ugo+rx"
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| 126 | includes="**/*.sh"/>
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| 127 | </pre>
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| 128 | </blockquote>
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| 129 | <p>makes all ".sh" files below <code>${dist}/bin</code>
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| 130 | readable and executable for anyone on a UNIX system.</p>
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| 131 | <blockquote>
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| 132 | <pre>
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| 133 | <chmod perm="g+w">
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| 134 | <fileset dir="shared/sources1">
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| 135 | <exclude name="**/trial/**"/>
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| 136 | </fileset>
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| 137 | <fileset refid="other.shared.sources"/>
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| 138 | </chmod>
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| 139 | </pre>
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| 140 | </blockquote>
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| 141 | <p>makes all files below <code>shared/sources1</code> (except those
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| 142 | below any directory named trial) writable for members of the same
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| 143 | group on a UNIX system. In addition all files belonging to a FileSet
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| 144 | with <code>id</code> <code>other.shared.sources</code> get the same
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| 145 | permissions.</p>
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| 146 |
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| 147 | <blockquote>
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| 148 | <pre>
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| 149 | <chmod perm="go-rwx" type="file">
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| 150 | <fileset dir="/web">
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| 151 | <include name="**/*.cgi"/>
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| 152 | <include name="**/*.old"/>
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| 153 | </fileset>
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| 154 | <dirset dir="/web">
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| 155 | <include name="**/private_*"/>
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| 156 | </dirset>
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| 157 | </chmod>
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| 158 | </pre>
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| 159 | </blockquote>
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| 160 |
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| 161 | <p>keeps non-owners from touching cgi scripts, files with a <code>.old</code>
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| 162 | extension or directories beginning with <code>private_</code>. A directory
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| 163 | ending in <code>.old</code> or a file beginning with private_ would remain
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| 164 | unaffected.</p>
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| 165 |
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| 166 | <hr>
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| 167 | <p align="center">Copyright © 2000-2005 The Apache Software Foundation.
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| 168 | All rights Reserved.</p>
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| 169 |
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| 170 | </body>
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| 171 | </html>
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| 172 |
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