Edit C:\apache-ant-1.8.0\docs\manual\CoreTasks\unpack.html
<!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <html> <head> <meta http-equiv="Content-Language" content="en-us"> <link rel="stylesheet" type="text/css" href="../stylesheets/style.css"> <title>GUnzip/BUnzip2 Task</title> </head> <body> <h2><a name="unpack">GUnzip/BUnzip2</a></h2> <h3>Description</h3> <p>Expands a resource packed using GZip or BZip2.</p> <p>If <i>dest</i> is a directory the name of the destination file is the same as <i>src</i> (with the ".gz" or ".bz2" extension removed if present). If <i>dest</i> is omitted, the parent dir of <i>src</i> is taken. The file is only expanded if the source resource is newer than the destination file, or when the destination file does not exist.</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">src</td> <td valign="top">the file to expand.</td> <td align="center" valign="top">Yes, or a nested resource collection.</td> </tr> <tr> <td valign="top">dest</td> <td valign="top">the destination file or directory.</td> <td align="center" valign="top">No</td> </tr> </table> <h3>Parameters specified as nested elements</h3> <h4>any <a href="../CoreTypes/resources.html">resource</a> or single element resource collection</h4> <p>The specified resource will be used as src.</p> <h3>Examples</h3> <blockquote><pre> <gunzip src="test.tar.gz"/> </pre></blockquote> <p>expands <i>test.tar.gz</i> to <i>test.tar</i></p> <blockquote><pre> <bunzip2 src="test.tar.bz2"/> </pre></blockquote> <p>expands <i>test.tar.bz2</i> to <i>test.tar</i></p> <blockquote><pre> <gunzip src="test.tar.gz" dest="test2.tar"/> </pre></blockquote> <p>expands <i>test.tar.gz</i> to <i>test2.tar</i></p> <blockquote><pre> <gunzip src="test.tar.gz" dest="subdir"/> </pre></blockquote> <p>expands <i>test.tar.gz</i> to <i>subdir/test.tar</i> (assuming subdir is a directory).</p> <blockquote><pre> <gunzip dest="."> <url url="http://example.org/archive.tar.gz"/> </gunzip> </pre></blockquote> <p>downloads <i>http://example.org/archive.tar.gz</i> and expands it to <i>archive.tar</i> in the project's basedir on the fly.</p> <h3>Related tasks</h3> <pre> <gunzip src="some-archive.gz" dest="some-dest-dir"/> </pre> is identical to <pre> <copy todir="some-dest-dir"> <gzipresource> <file file="some-archive.gz"/> </gzipresource> <mapper type="glob" from="*.gz" to="*"/> </copy> </pre> <p>The same is also true for <code><bunzip2></code> and <code><bzip2resource></code>. <code><copy></code> offers additional features like <a href="../CoreTypes/filterchain.html">filtering files</a> on the fly, allowing a file to be mapped to multiple destinations, preserving the last modified time or a configurable file system timestamp granularity.</p> </body> </html>
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