Fixing broken JPackage Ant rpm for use with 3rd party JARs such as Ivy

# ant

Buildfile: build.xml

resolve:

BUILD FAILED

/usr/local/apache-ivy-2.3.0-rc1/src/example/hello-ivy/build.xml:38: Problem: failed to create task or type antlib:org.apache.ivy.ant:retrieve

Cause: The name is undefined.

Action: Check the spelling.

Action: Check that any custom tasks/types have been declared.

Action: Check that any <presetdef>/<macrodef> declarations have taken place.

No types or tasks have been defined in this namespace yet

This appears to be an antlib declaration. 

Action: Check that the implementing library exists in one of:

        -/usr/share/ant/lib

        -/root/.ant/lib

        -a directory added on the command line with the -lib argument

Total time: 0 seconds

Now apparently people have been getting this problem as far back as 2008!  I found this bug which gave some insight as to what is going on:ASF Bugzilla – Bug 44849 The solution I implemented was to edit the ant.conf file, which looks like this:

# cat /etc/ant.conf

# ant.conf (Ant 1.7.x)

# JPackage Project <http://www.jpackage.org/>

# Validate --noconfig setting in case being invoked

# from pre Ant 1.6.x environment

if [ -z "$no_config" ] ; then

  no_config=true

fi

# Setup ant configuration

if $no_config ; then

  # Disable RPM layout

  rpm_mode=false

else

  # Use RPM layout

  rpm_mode=true

  # ANT_HOME for rpm layout

  ANT_HOME=/usr/share/ant

fi

and I changed the line with rpm_mode=true to rpm_mode=false.  Ivy then works fine.  I am sure this effects many other 3rd party JAR files being used with Ant as well.  It's very frustrating to have to do this, hopefully someone at JPackage makes corrections to Ant.  Here is the build of hello-ivy after the change to /etc/ant.conf:

# ant

Buildfile: build.xml

resolve:

:: Apache Ivy 2.3.0-rc1 - 20120416000235 :: http://ant.apache.org/ivy/ ::

:: loading settings :: url = jar:file:/usr/share/ant/lib/ivy.jar!/org/apache/ivy/core/settings/ivysettings.xml

:: resolving dependencies :: org.apache#hello-ivy;working@localhost

 confs:

 found commons-lang#commons-lang;2.0 in public

 found commons-cli#commons-cli;1.0 in public

 found commons-logging#commons-logging;1.0 in public

:: resolution report :: resolve 177ms :: artifacts dl 11ms

 :: evicted modules:

 commons-lang#commons-lang;1.0 by in

        ---------------------------------------------------------------------

        |                  |            modules            ||   artifacts   |

        |       conf       | number| search|dwnlded|evicted|| number|dwnlded|

        ---------------------------------------------------------------------

        |      default     |   4   |   0   |   0   |   1   ||   7   |   0   |

        ---------------------------------------------------------------------

:: retrieving :: org.apache#hello-ivy

 confs:

 0 artifacts copied, 7 already retrieved (0kB/6ms)

run:

standard message : hello ivy !

capitalized by org.apache.commons.lang.WordUtils : Hello Ivy !

BUILD SUCCESSFUL

Total time: 0 seconds Hopefully this helps others having the same problem.