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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>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/filterchains.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> |
