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ant(1)
======
:doctype:       manpage
:man source:    ANT
:man manual:    Apache Ant

NAME
----
ant - Java build tool

SYNOPSIS
--------
*ant* [OPTIONS] [TARGET [TARGET2 [TARGET3] ...]]

DESCRIPTION
-----------
Apache Ant is a Java library and command-line tool whose mission is to drive
processes described in build files as targets and extension points dependent
upon each other. The main known usage of Ant is the build of Java applications.
Ant supplies a number of built-in tasks allowing to compile, assemble, test and
run Java applications. Ant can also be used effectively to build non Java
applications, for instance C or C++ applications. More generally, Ant can be
used to pilot any type of process which can be described in terms of targets
and tasks.

USAGE
-----
When no arguments are specified, Ant looks for a build.xml file in the current
directory and, if found, uses that file as the build file and runs the target
specified in the default attribute of the <project> tag. To make Ant use
a build file other than build.xml, use the command-line option *-buildfile*
file, where file is the name of the build file you want to use (or a directory
containing a build.xml file).

If you use the *-find* [file] option, Ant will search for a build file first in
the current directory, then in the parent directory, and so on, until either
a build file is found or the root of the filesystem has been reached. By
default, it will look for a build file called build.xml. To have it search for
a build file other than build.xml, specify a file argument. Note: If you
include any other flags or arguments on the command line after the *-find*
flag, you must include the file argument for the *-find* flag, even if the name
of the build file you want to find is build.xml.

You can also set properties on the command line. This can be done with the
*-Dproperty*=value option, where property is the name of the property, and
value is the value for that property. If you specify a property that is also
set in the build file (see the property task), the value specified on the
command line will override the value specified in the build file. Defining
properties on the command line can also be used to pass in the value of
environment variables; just pass *-DMYVAR*=$MYVAR to Ant. You can then access
these variables inside your build file as ${MYVAR}. You can also access
environment variables using the property task's environment attribute.

Options that affect the amount of logging output by Ant are: *-quiet*, which
instructs Ant to print less information to the console; *-verbose*, which
causes Ant to print additional information to the console; *-debug*, which
causes Ant to print considerably more additional information; and *-silent*
which makes Ant print nothing but task output and build failures (useful to
capture Ant output by scripts).

It is also possible to specify one or more targets that should be executed.
When omitted, the target that is specified in the default attribute of the
project tag is used.

The *-projecthelp* option prints out a list of the build file's targets.
Targets that include a description attribute are listed as "Main targets",
those without a description are listed as "Other targets", then the "Default"
target is listed ("Other targets" are only displayed if there are no main
targets, or if Ant is invoked in *-verbose* or *-debug* mode).

OPTIONS
-------

*-help, -h*::
print this message and exit
*-projecthelp, -p*::
print project help information and exit
*-version*::
print the version information and exit
*-diagnostics*::
print information that might be helpful to diagnose or report problems and exit
*-quiet, -q*::
be extra quiet
*-silent, -S*::
print nothing but task outputs and build failures
*-verbose, -v*::
be extra verbose
*-debug, -d*::
print debugging information
*-emacs, -e*::
produce logging information without adornments
*-lib <path>*::
specifies a path to search for jars and classes
*-logfile <file>, -l <file>*::
use given file for log
*-logger <classname>*::
the class which is to perform logging
*-listener <classname>*::
add an instance of class as a project listener
*-noinput*::
do not allow interactive input
*-buildfile <file>, -file <file>, -f <file>*::
use given buildfile
*-D<property>=<value>*::
use value for given property
*-keep-going, -k*::
execute all targets that do not depend on failed target(s)
*-propertyfile <name>*::
load all properties from file with *-D* properties taking precedence
*-inputhandler <class>*::
the class which will handle input requests
*-find <file>, -f <file>*::
search for buildfile towards the root of the filesystem and use it
*-nice number*::
A niceness value for the main thread:
1 (lowest) to 10 (highest); 5 is the default
*-nouserlib*::
Run ant without using the jar files from `${user.home}/.ant/lib`
*-noclasspath*::
Run ant without using `CLASSPATH`
*-autoproxy*::
Java1.5+: use the OS proxy settings
*-main <class>*::
override Ant's normal entry point

EXAMPLES
--------
*ant*::

runs Ant using the build.xml file in the current directory, on the default target.

*ant -buildfile test.xml*::

runs Ant using the test.xml file in the current directory, on the default target.

*ant -buildfile test.xml dist*::

runs Ant using the test.xml file in the current directory, on the target called dist.

*ant -buildfile test.xml -Dbuild=build/classes dist*::

runs Ant using the test.xml file in the current directory, on the target called dist, setting the build property to the value "build/classes".

*ant -lib /home/ant/extras*::

runs Ant picking up additional task and support jars from the /home/ant/extras location

*ant -lib one.jar;another.jar*::

adds two jars to Ants classpath.

FILES
-----
The Ant wrapper script for Unix will source (read and evaluate) the file *~/.antrc* before it does anything. You can use the file, for example, to set/unset environment variables that should only be visible during the execution of Ant.

ENVIRONMENT VARIABLES
---------------------
The wrapper scripts use the following environment variables (if set):

JAVACMD::
full path of the Java executable. Use this to invoke a different JVM than JAVA_HOME/bin/java.
ANT_OPTS::
command-line arguments that should be passed to the JVM. For example, you can define system properties or set the maximum Java heap size here.
ANT_ARGS::
Ant command-line arguments. For example, set ANT_ARGS to point to a different logger, include a listener, and to include the *-find* flag.
Note: If you include *-find* in ANT_ARGS, you should include the name of the build file to find, even if the file is called build.xml.

SEE ALSO
--------
java(1), make(1), mvn(1)