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|
<!--
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<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<title>Subant Task</title>
</head>
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alink="#525D76" vlink="#525D76">
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<tr>
<td>
<table border="0" width="100%"><tr>
<td valign="bottom">
<font size="+3" face="arial,helvetica,sanserif"><strong>Subant Task</strong></font>
<br><font face="arial,helvetica,sanserif">Calls a given target for all defined sub-builds.</font>
</td>
<td>
<!-- PROJECT LOGO -->
<a href="http://ant.apache.org/">
<img src="../images/ant_logo_large.gif" align="right" alt="Apache Ant" border="0">
</a>
</td>
</tr></table>
</td>
</tr>
<!-- START RIGHT SIDE MAIN BODY -->
<tr>
<td valign="top" align="left">
<!-- Applying task/description -->
<!-- Start Description -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#525D76">
<font color="#ffffff" face="arial,helvetica.sanserif">
<a name="description">
<strong>Description</strong></a></font>
</td></tr>
<tr><td><blockquote>
<p>
Calls a given target for all defined sub-builds.
This is an extension
of ant for bulk project execution.
<strong>This task must not be used outside of a
<code>target</code> if it invokes the same build file it is
part of.</strong>
</p>
<p><em>Since Apache Ant 1.6</em></p>
<p><code>subant</code> uses <code>ant</code> internally so many things
said in <a href="ant.html"><code>ant</code>'s manual page</a> apply
here as well.</p>
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<!-- Subsection heading -->
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif">
<a name="Use with directories">
<strong>Use with directories</strong></a></font>
</td></tr>
<!-- Subsection body -->
<tr><td>
<p>
subant can be used with directory sets to execute a build from different directories.
2 different options are offered :
</p>
<ul>
<li>
to run the same build file <code>/somepath/otherpath/mybuild.xml</code>
with different base directories, use the genericantfile attribute
</li>
<li>if you want to run <code>directory1/mybuild.xml</code>, <code>directory2/mybuild.xml</code>, <code>....</code>,
use the antfile attribute. The subant task does not set the base directory for you in this case, because you can specify it in each build file.
</li>
</ul>
</td></tr>
</table>
</blockquote></td></tr>
</table>
<!-- End Description -->
<!-- Ignore -->
<!-- Start Attributes -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#525D76">
<font color="#ffffff" face="arial,helvetica.sanserif">
<a name="attributes">
<strong>Parameters</strong></a></font>
</td></tr>
<tr><td><blockquote>
<table>
<tr>
<td bgcolor="#cccccc" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif"><b>Attribute</b></font>
</td>
<td bgcolor="#cccccc" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif"><b>Description</b></font>
</td>
<td bgcolor="#cccccc" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif"><b>Type</b></font>
</td>
<td bgcolor="#cccccc" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif"><b>Requirement</b></font>
</td>
</tr>
<!-- Attribute Group -->
<!-- Attribute Group -->
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">antfile</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Build file name, to use in conjunction with directories.<br> Defaults to "build.xml".<br> If <code>genericantfile</code> is set, this attribute is ignored.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">String</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left" rowspan="10">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Optional</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">buildpath</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Set the buildpath to be used to find sub-projects.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Path</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">buildpathref</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Buildpath to use, by reference.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Reference</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">failonerror</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Sets whether to fail with a build exception on error, or go on.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">boolean</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">genericantfile</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Build file path, to use in conjunction with directories.<br> Use <code>genericantfile</code>, in order to run the same build file with different basedirs.<br> If this attribute is set, <code>antfile</code> is ignored.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">File</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">inheritall</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1"
face="arial,helvetica,sanserif">Corresponds to
<code><ant></code>'s
<code>inheritall</code> attribute but defaults
to false in this task..</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">boolean</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">inheritrefs</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Corresponds to <code><ant></code>'s <code>inheritrefs</code> attribute.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">boolean</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">output</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">Corresponds to <code><ant></code>'s <code>output</code> attribute.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">String</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">target</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif"></font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">String</font>
</td>
</tr>
<!-- Attribute -->
<tr>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">verbose</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">
Enable/ disable log messages showing when each sub-build path is entered/ exited.
The default value is false.</font>
</td>
<td bgcolor="#eeeeee" valign="top" align="left">
<font color="#000000" size="-1" face="arial,helvetica,sanserif">boolean</font>
</td>
</tr>
</table>
</blockquote></td></tr>
</table>
<!-- End Attributes -->
<!-- Start Elements -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#525D76">
<font color="#ffffff" face="arial,helvetica.sanserif">
<a name="elements">
<strong>Parameters as nested elements</strong></a></font>
</td></tr>
<tr><td><blockquote>
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>any filesystem based <a href="../Types/resources.html#collection">resource collection</a></strong></font>
</td></tr>
<tr><td><blockquote>
This includes <code><fileset></code>,
<code><dirset></code> and <code><filelist></code>
which are the nested resource collections supported prior
to Ant 1.7.
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>dirset</strong> (org.apache.tools.ant.types.DirSet)</font>
</td></tr>
<tr><td><blockquote>
Adds a directory set to the implicit build path. <p> <em>Note that the directories will be added to the build path in no particular order, so if order is significant, one should use a file list instead!</em>
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>filelist</strong> (org.apache.tools.ant.types.FileList)</font>
</td></tr>
<tr><td><blockquote>
Adds an ordered file list to the implicit build path. <p> <em>Note that contrary to file and directory sets, file lists can reference non-existent files or directories!</em>
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>fileset</strong> (org.apache.tools.ant.types.FileSet)</font>
</td></tr>
<tr><td><blockquote>
Adds a file set to the implicit build path. <p> <em>Note that the directories will be added to the build path in no particular order, so if order is significant, one should use a file list instead!</em>
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>property</strong> (org.apache.tools.ant.taskdefs.Property)</font>
</td></tr>
<tr><td><blockquote>
Corresponds to <code><ant></code>'s nested <code><property></code> element.
<p>When more than one nested <code><property></code> element
would set a property of the same name, the one declared last will
win. This is for backwards compatibility reasons even so it is
different from the way <code><property></code> tasks in build
files behave.</p>
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>propertyset</strong> (org.apache.tools.ant.types.PropertySet)</font>
</td></tr>
<tr><td><blockquote>
Corresponds to <code><ant></code>'s nested <code><propertyset></code> element.
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>buildpath</strong> (org.apache.tools.ant.types.Path)</font>
</td></tr>
<tr><td><blockquote>
Creates a nested build path, and add it to the implicit build path.
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>buildpathelement</strong> (org.apache.tools.ant.types.Path.PathElement)</font>
</td></tr>
<tr><td><blockquote>
Creates a nested <code><buildpathelement></code>, and add it to the implicit build path.
<!-- Ignore -->
<!-- Ignore -->
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- manually written -->
<!-- Start Element -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#828DA6">
<font color="#ffffff" face="arial,helvetica.sanserif" size="-1">
<strong>target</strong> (org.apache.tools.ant.taskdefs.Ant.TargetElement)</font>
</td></tr>
<tr><td><blockquote>
You can specify multiple targets using nested <code><target></code> elements
instead of using the target attribute. These will be executed as if
Ant had been invoked with a single target whose dependencies are the
targets so specified, in the order specified.
<!-- Ignore -->
<!-- Ignore -->
<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">name</td>
<td valign="top">The name of the called target.</td>
<td valign="top" align="center">Yes</td>
</tr>
</table>
<p><em>since Ant 1.7</em>.</p>
</blockquote></td></tr>
</table>
<!-- End Element -->
<!-- manually written end -->
</blockquote></td></tr>
</table>
<!-- End Elements -->
<table border="0" cellspacing="0" cellpadding="2" width="100%">
<tr><td> </td></tr>
<tr><td bgcolor="#525D76">
<font color="#ffffff" face="arial,helvetica.sanserif">
<a name="examples">
<strong>Examples</strong></a></font>
</td></tr>
<tr><td><blockquote style="">
<pre>
<project name="subant" default="subant1">
<property name="build.dir" value="subant.build"/>
<target name="subant1">
<subant target="">
<property name="build.dir" value="subant1.build"/>
<property name="not.overloaded" value="not.overloaded"/>
<fileset dir="." includes="*/build.xml"/>
</subant>
</target>
</project>
</pre>
<p>
this snippet build file will run ant in each subdirectory of the project directory,
where a file called build.xml can be found.
The property build.dir will have the value subant1.build in the ant projects called by subant.
</p>
<pre>
<subant target="">
<propertyset>
<propertyref prefix="toplevel"/>
<mapper type="glob" from="foo*" to="bar*"/>
</propertyset>
<fileset dir="." includes="*/build.xml"/>
</subant>
</pre>
<p>
this snippet build file will run ant in each subdirectory of the project directory,
where a file called build.xml can be found.
All properties whose name starts with "foo" are passed, their names are changed to start with "bar" instead
</p>
<pre>
<subant target="compile" genericantfile="/opt/project/build1.xml">
<dirset dir="." includes="projects*"/>
</subant>
</pre>
<p>
assuming the subdirs of the project dir are called projects1, projects2, projects3
this snippet will execute the compile target of /opt/project/build1.xml,
setting the basedir to projects1, projects2, projects3
</p>
<!-- manually written -->
<p>Now a little more complex - but useful - scenario. Assume that we have
a directory structure like this:</p>
<pre>
root
| common.xml
| build.xml
|
+-- modules
+-- modA
| +-- src
+-- modB
+-- src
<u><b>common.xml:</b></u><br>
<project>
<property name="src.dir" value="src"/>
<property name="build.dir" value="build"/>
<property name="classes.dir" value="${build.dir}/classes"/>
<target name="compile">
<mkdir dir="${classes.dir}"/>
<javac srcdir="${src.dir}" destdir="${classes.dir}"/>
</target>
<!-- more targets -->
</project>
<u><b>build.xml:</b></u><br>
<project>
<macrodef name="iterate">
<attribute name="target"/>
<sequential>
<subant target="@{target}">
<fileset dir="modules" includes="*/build.xml"/>
</subant>
</sequential>
</macrodef>
<target name="compile">
<iterate target="compile"/>
</target>
<!-- more targets -->
</project>
<u><b>modules/modA/build.xml:</b></u><br>
<project name="modA">
<import file="../../common.xml"/>
</project>
</pre>
<p>This results in very small buildfiles in the modules, maintainable
buildfile (common.xml) and a clear project structure. Additionally
the root buildfile is capable to run the whole build over all
modules.
</p>
<pre>
<subant failonerror="false">
<fileset dir="." includes="**/build.xml" excludes="build.xml"/>
<target name="clean"/>
<target name="build"/>
</subant>
</pre>
<p>Does a "clean build" for each subproject.</p>
<p><b>Hint:</b> because buildfiles are plain xml, you could generate the
masterbuildfile from the common buildfile by using a XSLT transformation:
</p>
<pre>
<xslt in="common.xml"
out="master.xml"
style="${ant.home}/etc/common2master.xsl"
/>
</pre>
<!-- manually written -->
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