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| <title>Apache Ant - Frequently Asked Questions</title> |
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| <p><strong>Apache Ant</strong></p> |
| <ul> |
| <li> <a href="./index.html">Front Page</a> |
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| <p><strong>Download</strong></p> |
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| <li> <a href="http://jakarta.apache.org/site/binindex.html">Binaries</a> |
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| <li> <a href="http://jakarta.apache.org/site/sourceindex.html">Source Code</a> |
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| <p><strong>Jakarta</strong></p> |
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| <li> <a href="http://jakarta.apache.org/site/news.html">News & Status</a> |
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| <p><strong>Get Involved</strong></p> |
| <ul> |
| <li> <a href="http://jakarta.apache.org/site/getinvolved.html">Overview</a> |
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| <li> <a href="http://jakarta.apache.org/site/cvsindex.html">CVS Repositories</a> |
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| <li> <a href="http://nagoya.apache.org/bugzilla/enter_bug.cgi?product=Ant">Bug Database</a> |
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| <li> <a href="http://nagoya.apache.org/bugzilla/enter_bug.cgi?product=Ant&bug_severity=Enhancement">Enhancement Requests</a> |
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| <tr><td bgcolor="#525D76"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Questions</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>About this FAQ</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#latest-version"> |
| Where do I find the latest version of this |
| document? |
| </a></li> |
| <li><a href="#adding-faqs"> |
| How can I contribute to this FAQ? |
| </a></li> |
| <li><a href="#creating-faq"> |
| How do you create the HTML version of this |
| FAQ? |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>General</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#what-is-ant"> |
| What is Apache Ant? |
| </a></li> |
| <li><a href="#ant-name"> |
| Why do you call it Ant? |
| </a></li> |
| <li><a href="#history"> |
| Tell us a little bit about Ant's history. |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Installation</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#no-gnu-tar"> |
| I get checksum errors when I try to extract the |
| <code>tar.gz</code> distribution file. Why? |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Using Ant</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#always-recompiles"> |
| Why does Ant always recompile all my Java files? |
| </a></li> |
| <li><a href="#passing-cli-args"> |
| How do I pass parameters from the command line to my |
| build file? |
| </a></li> |
| <li><a href="#jikes-switches"> |
| How can I use Jikes specific command line |
| switches? |
| </a></li> |
| <li><a href="#shell-redirect-1"> |
| How do I include a < character in my command line arguments? |
| </a></li> |
| <li><a href="#shell-redirect-2"> |
| How do I redirect standard input or standard output |
| in the <code><exec></code> task? |
| </a></li> |
| <li><a href="#defaultexcludes"> |
| I've made a <delete> task to delete unwanted |
| sourcesafe control files (CVS files, editor backup files), but |
| it doesn't seem to work. The files never get deleted. What's |
| wrong? |
| </a></li> |
| <li><a href="#multi-conditions"> |
| I want to execute a particular target only if |
| multiple conditions are true. |
| </a></li> |
| <li><a href="#stop-dependency"> |
| I have a target I want to skip if a variable is set, |
| so I have <code>unless="variable"</code> as an attribute |
| of the target. The trouble is that all of the targets that this target |
| depends on are still executed. Why? |
| </a></li> |
| <li><a href="#include-order"> |
| In my fileset, I've put in an |
| <code><exclude></code> of all files followed by an |
| <code><include></code> of just the files I want, but it |
| isn't giving me anything at all. What's wrong? |
| |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Ant and IDEs/Editors</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#integration"> |
| Is Ant supported by my IDE/Editor? |
| </a></li> |
| <li><a href="#emacs-mode"> |
| Why doesn't (X)Emacs/vi/MacOS X's project builder |
| parse the error messages generated by Ant correctly? |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Advanced issues</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#dtd"> |
| Is there a DTD that I can use to validate my build |
| files? |
| </a></li> |
| <li><a href="#xml-entity-include"> |
| How do I include an XML snippet in my build file? |
| </a></li> |
| <li><a href="#mail-logger"> |
| How do I send an email with the result of my build |
| process? |
| </a></li> |
| <li><a href="#listener-properties"> |
| How do I get at the properties that Ant was running |
| with from inside BuildListener? |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Known problems</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <ul> |
| <li><a href="#remove-cr"> |
| <chmod> or <exec> don't work in Ant |
| 1.3 on Unix |
| </a></li> |
| <li><a href="#javadoc-cannot-execute"> |
| JavaDoc failed: java.io.IOException: javadoc: cannot execute |
| </a></li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| </blockquote> |
| </td></tr> |
| </table> |
| |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#525D76"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong>Answers</strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <a name="latest-version"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Where do I find the latest version of this |
| document? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>The latest version can always be found at Ant's homepage |
| <a href="http://jakarta.apache.org/ant/faq.html">http://jakarta.apache.org/ant/faq.html</a>.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="adding-faqs"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How can I contribute to this FAQ? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>The page you are looking it is generated from |
| <a href="http://cvs.apache.org/viewcvs.cgi/~checkout~/jakarta-ant/xdocs/faq.xml">this</a> |
| document. If you want to add a new question, please submit |
| a patch against this document to one of Ant's mailing lists, |
| the structure is hoped to be self-explaining.</p> |
| <p>If you don't know how to create a patch, see the patches |
| section of <a href="http://jakarta.apache.org/site/source.html">this |
| page</a>.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="creating-faq"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do you create the HTML version of this |
| FAQ? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>We use |
| <a href="http://jakarta.apache.org/velocity/anakia.html">Anakia</a> |
| to render the HTML version from the original XML file.</p> |
| <p>The Velocity stylesheets used to process the XML files can |
| be found in the <code>xdocs/stylesheets</code> subdirectory of |
| Ant's CVS repository - the build file <code>docs.xml</code> is |
| used to drive Anakia. This file assumes that you have the |
| <code>jakarta-site2</code> module checked out from CVS as |
| well, but if you follow the instruction from Anakia's |
| homepage, you should get it to work without that. Just make |
| sure all required jars are in the task's classpath.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="what-is-ant"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| What is Apache Ant? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p> Ant is a Java based build tool. In theory it is kind of |
| like "make" without makes wrinkles and with the full |
| portability of pure Java code.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="ant-name"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Why do you call it Ant? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>According to Ant's original author James Duncan |
| Davidson, the name is an acronym for "Another Neat |
| Tool".</p> |
| <p>Later explanations go along the lines of "Ants are |
| doing an extremely good job at building things" or |
| "Ants are very small and can carry a weight a dozen times |
| of their own" - describing what Ant is intended to |
| be.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="history"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Tell us a little bit about Ant's history. |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>Initially Ant was part of the Tomcat code base when it was |
| donated to the Apache Software Foundation - it has been |
| created by James Duncan Davidson, who also is the original |
| author of Tomcat. Ant was there to build Tomcat, nothing |
| else.</p> |
| <p>Soon thereafter several open source Java projects realized |
| that Ant could solve the problems they had with makefiles. |
| Starting with the projects hosted at Jakarta and the old Java |
| Apache project, Ant spread like a virus and now is the build |
| tool of choice for a lot of projects.</p> |
| <p>In January 2000 Ant was moved to a separate CVS module and |
| was promoted to a project of its own, independent of |
| Tomcat. Ant became Apache Ant.</p> |
| <p>The first version of Ant that was exposed a lager audience |
| was the one that shipped with Tomcat's 3.1 release on 19 April |
| 2000. This version has later been referenced to as Ant |
| 0.3.1.</p> |
| <p>The first official release of Ant as a stand alone product was |
| Ant 1.1 released on 19 July 2000. The complete release |
| history:</p> |
| <table> |
| <tr> |
| <td bgcolor="#039acc" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| Ant Version |
| </font> |
| </td> |
| <td bgcolor="#039acc" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| Release Date |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 1.1 |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 19 July 2000 |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 1.2 |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 24 October 2000 |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 1.3 |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 3 March 2001 |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 1.4 |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 3 September 2001 |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 1.4.1 |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| 11 October 2001 |
| </font> |
| </td> |
| </tr> |
| </table> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="no-gnu-tar"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| I get checksum errors when I try to extract the |
| <code>tar.gz</code> distribution file. Why? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>Ant's distribution contains file names that are longer |
| than 100 characters, which is not supported by the standard |
| tar file format. Several different implementations of tar use |
| different and incompatible ways to work around this |
| restriction.</p> |
| <p>Ant's <tar> task can create tar archives that use |
| the GNU tar extension, and this has been used when putting |
| together the distribution. If you are using a different |
| version of tar (for example, the one shipping with Solaris), |
| you cannot use it to extract the archive.</p> |
| <p>The solution is to either install GNU tar, which can be |
| found <a href="http://www.gnu.org/software/tar/tar.html">here</a> |
| or use the zip archive instead (you can extract it using |
| <code>jar xf</code>).</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="always-recompiles"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Why does Ant always recompile all my Java files? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>In order to find out which files should be compiled, Ant |
| compares the timestamps of the source files to those of the |
| resulting <code>.class</code> files. Opening all source files |
| to find out which package they belong to would be very |
| inefficient - instead of this, Ant expects you to place your |
| source files in a directory hierarchy that mirrors your |
| package hierarchy and to point Ant to the root of this |
| directory tree with the <code>srcdir</code> attribute.</p> |
| <p>Say you have <code><javac srcdir="src" |
| destdir="dest" /></code>. If Ant finds a file |
| <code>src/a/b/C.java</code> it expects it to be in package |
| <code>a.b</code> so that the resulting <code>.class</code> |
| file is going to be <code>dest/a/b/C.class</code>.</p> |
| <p>If your setup is different, Ant's heuristic won't work and |
| it will recompile classes that are up to date. Ant is not the |
| only tool, that expects a source tree layout like this.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="passing-cli-args"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do I pass parameters from the command line to my |
| build file? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>Use properties: <code>ant |
| -D<name>=<value></code> lets you define values for |
| properties. These can then be used within your build file as |
| any normal property: <code>${<name>}</code> will put in |
| <code><value></code>.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="jikes-switches"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How can I use Jikes specific command line |
| switches? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>A couple of switches are supported via magic |
| properties:</p> |
| <table> |
| <tr> |
| <td bgcolor="#039acc" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| switch |
| </font> |
| </td> |
| <td bgcolor="#039acc" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| property |
| </font> |
| </td> |
| <td bgcolor="#039acc" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| default |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| +E |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| build.compiler.emacs |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| false == not set |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| +P |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| build.compiler.pedantic |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| false == not set |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| +F |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| build.compiler.fulldepend |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| false == not set |
| </font> |
| </td> |
| </tr> |
| <tr> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| <strong>only for Ant < 1.4, replaced by the nowarn |
| attribute of javac after that</strong> -nowarn |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| build.compiler.warnings |
| </font> |
| </td> |
| <td bgcolor="#a0ddf0" colspan="" rowspan="" |
| valign="top" align="left"> |
| <font color="#000000" size="-1" face="arial,helvetica,sanserif"> |
| true == not set |
| </font> |
| </td> |
| </tr> |
| </table> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="shell-redirect-1"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do I include a < character in my command line arguments? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>The short answer is "Use <code>&lt;</code>".</p> |
| <p>The long answer is, that this probably won't do what you |
| want anyway, see <a href="#shell-redirect-2">the next |
| section</a>.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="shell-redirect-2"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do I redirect standard input or standard output |
| in the <code><exec></code> task? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>Say you want to redirect the standard input stream of the |
| <code>cat</code> command to read from a file, something |
| like</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| shell-prompt> cat < foo |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>and try to translate it into</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <exec executable="cat"> |
| <arg value="&lt;" /> |
| <arg value="foo" /> |
| </exec> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>This will not do what you expect. The input-redirection is |
| performed by your shell, not the command itself, so this |
| should read:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <exec executable="/bin/sh"> |
| <arg value="-c" /> |
| <arg value="cat &lt; foo" /> |
| </exec> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>Note, that you must use the <code>value</code> attribute of |
| <code><arg></code> in the last element.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="defaultexcludes"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| I've made a <delete> task to delete unwanted |
| sourcesafe control files (CVS files, editor backup files), but |
| it doesn't seem to work. The files never get deleted. What's |
| wrong? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>This is probably happening because by default, Ant excludes |
| SourceSafe control files (<code>vssver.scc</code>) and other |
| files from FileSets.</p> |
| <p>Here's what you probably did:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <delete> |
| <fileset dir="${build.src}" includes="**/vssver.scc"/> |
| </delete> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>You need to switch off the default exclusions and it will work:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <delete> |
| <fileset dir="${build.src}" includes="**/vssver.scc" |
| defaultexcludes="no"/> |
| </delete> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>For a complete listing of the patterns that are excluded |
| by default, see <a href="manual/dirtasks.html">the user |
| manual</a>.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="multi-conditions"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| I want to execute a particular target only if |
| multiple conditions are true. |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>There are actually several answers to this question.</p> |
| <p>If you have only one set and one unset property to test, |
| you can put both an <code>if</code> and an <code>unless</code> |
| attribute into the target. The target will act as if they |
| are "anded" together.</p> |
| <p>If you are using a version of Ant 1.3 or earlier, the |
| way to work with all other cases is to chain targets together |
| to determine the specific state you wish to test for.</p> |
| <p>To see how this works, assume you have three properties, |
| <code>prop1</code>, <code>prop2</code>, and <code>prop3</code>. |
| You want to test that <code>prop1</code> and <code>prop2</code> |
| are set, but that <code>prop3</code> is not. If the condition |
| holds true you want to echo "yes".</p> |
| <p>Here is the implementation in Ant 1.3 and earlier:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <target name="cond" depends="cond-if"/> |
| |
| <target name="cond-if" if="prop1"> |
| <antcall target="cond-if-2"/> |
| </target> |
| |
| <target name="cond-if-2" if="prop2"> |
| <antcall target="cond-if-3"/> |
| </target> |
| |
| <target name="cond-if-3" unless="prop3"> |
| <echo message="yes"/> |
| </target> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>Note that <code><antcall></code> tasks do not pass |
| property changes back up to the environment they were called |
| from.</p> |
| <p>Starting with Ant 1.4, you can use the |
| <code><condition></code> task.</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <target name="cond" depends="cond-if,cond-else"/> |
| |
| <target name="check-cond"> |
| <condition property="cond-is-true"> |
| <and> |
| <not> |
| <equals arg1="${prop1}" arg2="$${prop1}" /> |
| </not> |
| <not> |
| <equals arg1="${prop2}" arg2="$${prop2}" /> |
| </not> |
| <equals arg1="${prop3}" arg2="$${prop3}" /> |
| </and> |
| </condition> |
| </target> |
| |
| <target name="cond-if" depends="check-cond" if="cond-is-true"> |
| <echo message="yes"/> |
| </target> |
| |
| <target name="cond-else" depends="check-cond" unless="cond-is-true"> |
| <echo message="no"/> |
| </target> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>This version takes advantage of two things:</p> |
| <ul> |
| <li>If a property <code>a</code> has not been set, |
| <code>${a}</code> will evaluate to <code>${a}</code>.</li> |
| |
| <li>To get a literal <code>$</code> in Ant, you have to |
| escape it with another <code>$</code> - this will also break |
| the special treatment of the sequence <code>${</code>.</li> |
| </ul> |
| <p>This is neither readable, nor easy to understand, therefore |
| post-1.4.1 Ant introduces the <code><isset></code> element |
| to the <code><condition></code> task.</p> |
| <p>Here is the previous example done using |
| <code><isset></code>:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <target name="check-cond"> |
| <condition property="cond-is-true"> |
| <and> |
| <isset property="prop1"/> |
| <isset property="prop2"/> |
| <not> |
| <isset property="prop3"/> |
| </not> |
| </and> |
| </condition> |
| </target> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>The last option is to use a scripting language to set the |
| properties. This can be particularly handy when you need much |
| better control than the simple conditions shown here, but of |
| course comes with the overhead of adding JAR files to support |
| the language, to say nothing of the added maintenance in requiring |
| two languages to implement a single system.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="stop-dependency"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| I have a target I want to skip if a variable is set, |
| so I have <code>unless="variable"</code> as an attribute |
| of the target. The trouble is that all of the targets that this target |
| depends on are still executed. Why? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>The list of dependencies is generated by Ant before any of the |
| targets are run. This allows dependent targets such as an |
| <code>init</code> target to set properties that can control the |
| execution of the targets higher in the dependency graph. This |
| is a good thing.</p> |
| <p>When your dependencies actually break down the higher level task |
| into several simpler steps, though, this behaviour becomes |
| counterintuitive. There are a couple of solutions available: |
| </p> |
| <ol> |
| <li>Put the same condition on each of the dependent targets.</li> |
| |
| <li>Execute the steps using <code><antcall></code> |
| instead of specifying them inside the <code>depends</code> |
| attribute.</li> |
| </ol> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="include-order"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| In my fileset, I've put in an |
| <code><exclude></code> of all files followed by an |
| <code><include></code> of just the files I want, but it |
| isn't giving me anything at all. What's wrong? |
| |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>The order of the <code><include></code> and |
| <code><exclude></code> tags within a fileset is ignored |
| when the fileset is created. Instead, all of the |
| <code><include></code> elements are processed together, |
| followed by all of the <code><exclude></code> |
| elements. This means that the <code><exclude></code> |
| elements only apply to the file list produced by the |
| <code><include></code> elements.</p> |
| <p>To get the files you want, focus on just the |
| <code><include></code> patterns that would be necessary |
| to get them. If you need to trim the list that the includes |
| would produce, use excludes.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="integration"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Is Ant supported by my IDE/Editor? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>See the <a href="external.html#IDE and Editor Integration">section |
| on IDE integration</a> on our external tools page.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="emacs-mode"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Why doesn't (X)Emacs/vi/MacOS X's project builder |
| parse the error messages generated by Ant correctly? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>Ant adds a "banner" with the name of the current |
| task in front of all messages - and there are no built-in |
| regular expressions in your Editor that would account for |
| this.</p> |
| <p>You can disable this banner by invoking Ant with the |
| <code>-emacs</code> switch. Alternatively you can add the |
| following snippet to your <code>.emacs</code> to make Emacs |
| understand Ant's output.</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| (require 'compile) |
| (setq compilation-error-regexp-alist |
| (append (list |
| ;; works for jikes |
| '("^\\s-*\\[[^]]*\\]\\s-*\\(.+\\):\\([0-9]+\\):\\([0-9]+\\):[0-9]+:[0-9]+:" 1 2 3) |
| ;; works for javac |
| '("^\\s-*\\[[^]]*\\]\\s-*\\(.+\\):\\([0-9]+\\):" 1 2)) |
| compilation-error-regexp-alist)) |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>Yet another alternative that preserves most of Ant's |
| formatting is to pipe Ant's output through the following Perl |
| script by Dirk-Willem van Gulik:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| #!/usr/bin/perl |
| # |
| # May 2001 dirkx@apache.org - remove any |
| # [foo] lines from the output; keeping |
| # spacing more or less there. |
| # |
| $|=1; |
| while(<STDIN>) { |
| if (s/^(\s+)\[(\w+)\]//) { |
| if ($2 ne $last) { |
| print "$1\[$2\]"; |
| $s = ' ' x length($2); |
| } else { |
| print "$1 $s "; |
| }; |
| $last = $2; |
| }; |
| print; |
| }; |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="dtd"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| Is there a DTD that I can use to validate my build |
| files? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>An incomplete DTD can be created by the |
| <code><antstructure></code> task - but this one |
| has a few problems:</p> |
| <ul> |
| <li>It doesn't know about required attributes. Only |
| manual tweaking of this file can help here.</li> |
| |
| <li>It is not complete - if you add new tasks via |
| <code><taskdef></code> it won't know about it. See |
| <a href="http://www.sdv.fr/pages/casa/html/ant-dtd.en.html">this |
| page</a> by Michel Casabianca for a solution to this |
| problem. Note that the DTD you can download at this page |
| is based on Ant 0.3.1.</li> |
| |
| <li>It may even be an invalid DTD. As Ant allows tasks |
| writers to define arbitrary elements, name collisions will |
| happen quite frequently - if your version of Ant contains |
| the optional <code><test></code> and |
| <code><junit></code> tasks, there are two XML |
| elements named test (the task and the nested child element |
| of <code><junit></code>) with different attribute |
| lists. This problem cannot be solved, DTDs don't give a |
| syntax rich enough to support this.</li> |
| </ul> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="xml-entity-include"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do I include an XML snippet in my build file? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>You can use XML's way of including external files and let |
| the parser do the job for Ant:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <?xml version="1.0"?> |
| |
| <!DOCTYPE project [ |
| <!ENTITY common SYSTEM "file:./common.xml"> |
| ]> |
| |
| <project name="test" default="test" basedir="."> |
| |
| <target name="setup"> |
| ... |
| </target> |
| |
| &common; |
| |
| ... |
| |
| </project> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>will literally include the contents of <code>common.xml</code> where |
| you've placed the <code>&common;</code> entity.</p> |
| <p>In combination with a DTD, this would look like this:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| <!DOCTYPE project PUBLIC "-//ANT//DTD project//EN" "file:./ant.dtd" [ |
| <!ENTITY include SYSTEM "file:./header.xml"> |
| ]> |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="mail-logger"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do I send an email with the result of my build |
| process? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>If you are using a nightly-build of Ant 1.5 after |
| 2001-12-14, you can use the built-in MailLogger.</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| ant -logger org.apache.tools.ant.listener.MailLogger |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>See the <a href="http://cvs.apache.org/viewcvs/~checkout~/jakarta-ant/docs/manual/listeners.html?content-type=text/html">Listener |
| & Logger documentation</a> for details on the properties |
| required.</p> |
| <p>For older versions of Ant you can use a custom |
| BuildListener, that sends out an email |
| in the buildFinished() method. Will Glozer |
| <will.glozer@jda.com> has written such a listener based |
| on <a href="http://java.sun.com/products/javamail/">JavaMail</a>, |
| the source is</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| import java.io.*; |
| import java.util.*; |
| import javax.mail.*; |
| import javax.mail.internet.*; |
| import org.apache.tools.ant.*; |
| |
| /** |
| * A simple listener that waits for a build to finish and sends an email |
| * of the results. The settings are stored in "monitor.properties" and |
| * are fairly self explanatory. |
| * |
| * @author Will Glozer |
| * @version 1.05a 09/06/2000 |
| */ |
| public class BuildMonitor implements BuildListener { |
| protected Properties props; |
| |
| /** |
| * Create a new BuildMonitor. |
| */ |
| public BuildMonitor() throws Exception { |
| props = new Properties(); |
| InputStream is = getClass().getResourceAsStream("monitor.properties"); |
| props.load(is); |
| is.close(); |
| } |
| |
| public void buildStarted(BuildEvent e) { |
| } |
| |
| /** |
| * Determine the status of the build and the actions to follow, now that |
| * the build has completed. |
| * |
| * @param e Event describing the build tatus. |
| */ |
| public void buildFinished(BuildEvent e) { |
| Throwable th = e.getException(); |
| String status = (th != null) ? "failed" : "succeeded"; |
| |
| try { |
| String key = "build." + status; |
| if (props.getProperty(key + ".notify").equalsIgnoreCase("false")) { |
| return; |
| } |
| |
| Session session = Session.getDefaultInstance(props, null); |
| |
| MimeMessage message = new MimeMessage(session); |
| message.addRecipients(Message.RecipientType.TO, parseAddresses( |
| props.getProperty(key + ".email.to"))); |
| message.setSubject(props.getProperty(key + ".email.subject")); |
| |
| BufferedReader br = new BufferedReader(new FileReader( |
| props.getProperty("build.log"))); |
| StringWriter sw = new StringWriter(); |
| |
| String line = br.readLine(); |
| while (line != null) { |
| sw.write(line); |
| sw.write("\n"); |
| line = br.readLine(); |
| } |
| br.close(); |
| |
| message.setText(sw.toString(), "UTF-8"); |
| sw.close(); |
| |
| Transport transport = session.getTransport(); |
| transport.connect(); |
| transport.send(message); |
| transport.close(); |
| } catch (Exception ex) { |
| System.out.println("BuildMonitor failed to send email!"); |
| ex.printStackTrace(); |
| } |
| } |
| |
| /** |
| * Parse a comma separated list of internet email addresses. |
| * |
| * @param s The list of addresses. |
| * @return Array of Addresses. |
| */ |
| protected Address[] parseAddresses(String s) throws Exception { |
| StringTokenizer st = new StringTokenizer(s, ","); |
| Address[] addrs = new Address[st.countTokens()]; |
| |
| for (int i = 0; i < addrs.length; i++) { |
| addrs[i] = new InternetAddress(st.nextToken()); |
| } |
| return addrs; |
| } |
| |
| public void messageLogged(BuildEvent e) { |
| } |
| |
| public void targetStarted(BuildEvent e) { |
| } |
| |
| public void targetFinished(BuildEvent e) { |
| } |
| |
| public void taskStarted(BuildEvent e) { |
| } |
| |
| public void taskFinished(BuildEvent e) { |
| } |
| } |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>With a <code>monitor.properties</code> like this</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| # configuration for build monitor |
| |
| mail.transport.protocol=smtp |
| mail.smtp.host=<host> |
| mail.from=Will Glozer <will.glozer@jda.com> |
| |
| build.log=build.log |
| |
| build.failed.notify=true |
| build.failed.email.to=will.glozer@jda.com |
| build.failed.email.subject=Nightly build failed! |
| |
| build.succeeded.notify=true |
| build.succeeded.email.to=will.glozer@jda.com |
| build.succeeded.email.subject=Nightly build succeeded! |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p><code>monitor.properties</code> should be placed right next |
| to your compiled <code>BuildMonitor.class</code>. To use it, |
| invoke Ant like</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| ant -listener BuildMonitor -logfile build.log |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>Make sure that <code>mail.jar</code> from JavaMail and |
| <code>activation.jar</code> from the |
| <a href="http://java.sun.com/products/javabeans/glasgow/jaf.html">Java |
| Beans Activation Framework</a> in your <code>CLASSPATH</code>.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="listener-properties"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| How do I get at the properties that Ant was running |
| with from inside BuildListener? |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>You can get at a hashtable with all the properties that Ant |
| has been using through the BuildEvent parameter. For |
| example:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| public void buildFinished(BuildEvent e) { |
| Hashtable table = e.getProject().getProperties(); |
| String buildpath = (String)table.get("build.path"); |
| ... |
| } |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| <p>This is more accurate than just reading the same property |
| files that your project does, since it will give the correct |
| results for properties that are specified on the command line |
| when running Ant.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="remove-cr"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| <chmod> or <exec> don't work in Ant |
| 1.3 on Unix |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>The <code>antRun</code> script in <code>ANT_HOME/bin</code> |
| has DOS instead of Unix line endings, you must remove the |
| carriage return characters from this file. This can be done by |
| using Ant's <fixcrlf> task or something like:</p> |
| <div align="left"> |
| <table cellspacing="4" cellpadding="0" border="0"> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#ffffff"><pre> |
| tr -d '\r' < $ANT_HOME/bin/antRun > /tmp/foo |
| mv /tmp/foo $ANT_HOME/bin/antRun |
| </pre></td> |
| <td bgcolor="#023264" width="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| <tr> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td> |
| </tr> |
| </table> |
| </div> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| <a name="javadoc-cannot-execute"> |
| <table border="0" cellspacing="0" cellpadding="2" width="100%"> |
| <tr><td bgcolor="#828DA6"> |
| <font color="#ffffff" face="arial,helvetica,sanserif"> |
| <strong> |
| JavaDoc failed: java.io.IOException: javadoc: cannot execute |
| </strong> |
| </font> |
| </td></tr> |
| <tr><td> |
| <blockquote> |
| <p>There is a bug in the Solaris reference implementation of |
| the JDK, see <a href="http://developer.java.sun.com/developer/bugParade/bugs/4230399.html">http://developer.java.sun.com/developer/bugParade/bugs/4230399.html</a>. |
| This also appears to be true under Linux, moving the JDK to |
| the front of the PATH fixes the problem.</p> |
| </blockquote> |
| </td></tr> |
| </table> |
| </a> |
| </blockquote> |
| </td></tr> |
| </table> |
| </td> |
| </tr> |
| |
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| <tr><td colspan="2"> |
| <hr noshade="" size="1"/> |
| </td></tr> |
| <tr><td colspan="2"> |
| <div align="center"><font color="#525D76" size="-1"><em> |
| Copyright © 2000-2002, Apache Software Foundation |
| </em></font></div> |
| </td></tr> |
| </table> |
| </body> |
| </html> |
| <!-- end the processing --> |
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