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<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
<title>Patch Task</title>
</head>
<body>
<h2><a name="patch">Patch</a></h2>
<h3>Description</h3>
<p>Applies a diff file to originals. ; requires "patch" to be
on the execution path. </p>
<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
<tr>
<td valign="top"><b>Attribute</b></td>
<td valign="top"><b>Description</b></td>
<td align="center" valign="top"><b>Required</b></td>
</tr>
<tr>
<td valign="top">patchfile</td>
<td valign="top">the file that includes the diff output</td>
<td align="center" valign="top">Yes</td>
</tr>
<tr>
<td valign="top">originalfile</td>
<td valign="top">the file to patch</td>
<td align="center" valign="top">No, tries to guess it from the diff
file</td>
</tr>
<tr>
<td valign="top">destfile</td>
<td valign="top">the file to send the output to instead of
patching the file(s) in place. <em>since Apache Ant 1.6</em></td>
<td align="center" valign="top">No.</td>
</tr>
<tr>
<td valign="top">backups</td>
<td valign="top">Keep backups of the unpatched files</td>
<td align="center" valign="top">No</td>
</tr>
<tr>
<td valign="top">quiet</td>
<td valign="top">Work silently unless an error occurs</td>
<td align="center" valign="top">No</td>
</tr>
<tr>
<td valign="top">reverse</td>
<td valign="top">Assume patch was created with old and new files
swapped.</td>
<td align="center" valign="top">No</td>
</tr>
<tr>
<td valign="top">ignorewhitespace</td>
<td valign="top">Ignore whitespace differences.</td>
<td align="center" valign="top">No</td>
</tr>
<tr>
<td valign="top">strip</td>
<td valign="top">Strip the smallest prefix containing <i>num</i> leading
slashes from filenames.</td>
<td align="center" valign="top">No</td>
</tr>
<tr>
<td valign="top">dir</td>
<td valign="top">The directory in which to run the patch command.</td>
<td align="center" valign="top">No, default is the project's basedir.</td>
</tr>
<tr>
<td valign="top">failonerror</td>
<td valign="top">Stop the buildprocess if the command exits with a
return code signaling failure. Defaults to false.
<em>since Ant 1.8.0</em></td>
<td align="center" valign="top">No</td>
</tr>
</table>
<h3>Examples</h3>
<pre> <patch patchfile="module.1.0-1.1.patch"/></pre>
<p>applies the diff included in <i>module.1.0-1.1.patch</i> to the
files in base directory guessing the filename(s) from the diff output.</p>
<pre> <patch patchfile="module.1.0-1.1.patch" strip="1"/></pre>
<p>like above but one leading directory part will be removed. i.e. if
the diff output looked like</p>
<pre>
--- a/mod1.0/A Mon Jun 5 17:28:41 2000
+++ a/mod1.1/A Mon Jun 5 17:28:49 2000
</pre>
the leading <i>a/</i> will be stripped.
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