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Posted to users@buildr.apache.org by Damian Monogue <de...@gmail.com> on 2011/08/25 18:14:19 UTC
Antwrap task classpath woes.
Hello,
I was hoping you kind folks could help me out.
I'm attempting to reuse some of our old ant scripts in our current push to
implement buildr as our new build tool. I've been trucking along ok, but now
I'm having issues with it not wanting to load all of the jars in
ANT_HOME/lib.
I'm calling AntProject.new(:ant_home => "/home/dmonogue/apache-ant-1.6.5")
as /home/dmonogue/apache-ant-1.6.5 is where I exploded the 1.6.5 .tar.bz2
distributed on the ant.apache.org site. everything chugs along great, until
I get to a replaceregexp task, whereupon it blows up with the following:
build.xml:916: Problem: failed to create task or type replaceregexp
Cause: the class org.apache.tools.ant.taskdefs.optional.ReplaceRegExp was
not found.
This looks like one of Ant's optional components.
Action: Check that the appropriate optional JAR exists in
-ANT_HOME/lib
-the IDE Ant configuration dialogs
Do not panic, this is a common problem.
The commonest cause is a missing JAR.
This is not a bug; it is a configuration problem
The ant-nodeps.jar file (which contains the
org.apache.tools.ant.taskdefs.optional.ReplaceRegExp classfile) exists in
/home/dmonogue/apache-ant-1.6.5/lib directory but is apparently not actually
being loaded in any fashion which ant recognizes. I have tried also with ant
1.7.1 with the same results.
It may be worth noting that I couldn't get any of the ant tasks to work
until I added
Java.load
to the top of my buildfile, as it was then dying on such things as:
NoClassDefFoundError : org/apache/tools/ant/DefaultLogger
I only even tried the Java.load because I found something in the
documentation which mentioned it for using external java libraries with
buildr, and I figured it couldn't hurt to try it.
Is there something obvious I've overlooked? This is the last major hurdle in
proving we can use buildr for our build tool here, so any help at all is
appreciated.
Thanks,
Damian
Re: Antwrap task classpath woes.
Posted by Damian Monogue <de...@gmail.com>.
That's done it. I tried it with just Java.classpath <<
"/home/dmonogue/apache-ant-1.6.5/lib" but it seems it wants the actual
files, not just the path.
Thanks, Alex. I'll keep chugging along from here.
On Thu, Aug 25, 2011 at 1:02 PM, Alex Boisvert <al...@gmail.com>wrote:
> Hi Damian,
>
> This is a design issue with RJB (ruby-java bridge) which affects AntWrap.
> All Java libraries used by Buildr must added to Java.classpath before
> Java.load is called. (Java.load is called automatically the first call to
> a Java class is made)
>
> So you have two choices,
>
> 1) Add the following line to the top of your buildfile,
>
> Java.classpath << FileList[ENV['ANT_HOME'] + '/lib/*']
>
> 2) Run ant as an external process,
>
> task :external_ant
> exec 'ant -f build.xml some_task'
> end
>
> Also, Buildr has some syntax sugar for creating AntProject using the ant()
> method within a project,
>
> ant('my-project') do |ant|
> ant.ant(:antfile => 'build.xml', :dir => '.', :target => 'compile')
> end
>
> (API doc at http://buildr.apache.org/rdoc/classes/Buildr/Ant.html)
>
> hope this helps,
> alex
>
> On Thu, Aug 25, 2011 at 9:14 AM, Damian Monogue <de...@gmail.com>
> wrote:
>
> > Hello,
> >
> > I was hoping you kind folks could help me out.
> >
> > I'm attempting to reuse some of our old ant scripts in our current push
> to
> > implement buildr as our new build tool. I've been trucking along ok, but
> > now
> > I'm having issues with it not wanting to load all of the jars in
> > ANT_HOME/lib.
> >
> > I'm calling AntProject.new(:ant_home =>
> "/home/dmonogue/apache-ant-1.6.5")
> > as /home/dmonogue/apache-ant-1.6.5 is where I exploded the 1.6.5 .tar.bz2
> > distributed on the ant.apache.org site. everything chugs along great,
> > until
> > I get to a replaceregexp task, whereupon it blows up with the following:
> >
> > build.xml:916: Problem: failed to create task or type replaceregexp
> > Cause: the class org.apache.tools.ant.taskdefs.optional.ReplaceRegExp was
> > not found.
> > This looks like one of Ant's optional components.
> > Action: Check that the appropriate optional JAR exists in
> > -ANT_HOME/lib
> > -the IDE Ant configuration dialogs
> >
> > Do not panic, this is a common problem.
> > The commonest cause is a missing JAR.
> >
> > This is not a bug; it is a configuration problem
> >
> >
> > The ant-nodeps.jar file (which contains the
> > org.apache.tools.ant.taskdefs.optional.ReplaceRegExp classfile) exists in
> > /home/dmonogue/apache-ant-1.6.5/lib directory but is apparently not
> > actually
> > being loaded in any fashion which ant recognizes. I have tried also with
> > ant
> > 1.7.1 with the same results.
> >
> > It may be worth noting that I couldn't get any of the ant tasks to work
> > until I added
> >
> > Java.load
> >
> > to the top of my buildfile, as it was then dying on such things as:
> >
> > NoClassDefFoundError : org/apache/tools/ant/DefaultLogger
> >
> >
> > I only even tried the Java.load because I found something in the
> > documentation which mentioned it for using external java libraries with
> > buildr, and I figured it couldn't hurt to try it.
> >
> > Is there something obvious I've overlooked? This is the last major hurdle
> > in
> > proving we can use buildr for our build tool here, so any help at all is
> > appreciated.
> >
> > Thanks,
> > Damian
> >
>
Re: Antwrap task classpath woes.
Posted by Alex Boisvert <al...@gmail.com>.
Hi Damian,
This is a design issue with RJB (ruby-java bridge) which affects AntWrap.
All Java libraries used by Buildr must added to Java.classpath before
Java.load is called. (Java.load is called automatically the first call to
a Java class is made)
So you have two choices,
1) Add the following line to the top of your buildfile,
Java.classpath << FileList[ENV['ANT_HOME'] + '/lib/*']
2) Run ant as an external process,
task :external_ant
exec 'ant -f build.xml some_task'
end
Also, Buildr has some syntax sugar for creating AntProject using the ant()
method within a project,
ant('my-project') do |ant|
ant.ant(:antfile => 'build.xml', :dir => '.', :target => 'compile')
end
(API doc at http://buildr.apache.org/rdoc/classes/Buildr/Ant.html)
hope this helps,
alex
On Thu, Aug 25, 2011 at 9:14 AM, Damian Monogue <de...@gmail.com> wrote:
> Hello,
>
> I was hoping you kind folks could help me out.
>
> I'm attempting to reuse some of our old ant scripts in our current push to
> implement buildr as our new build tool. I've been trucking along ok, but
> now
> I'm having issues with it not wanting to load all of the jars in
> ANT_HOME/lib.
>
> I'm calling AntProject.new(:ant_home => "/home/dmonogue/apache-ant-1.6.5")
> as /home/dmonogue/apache-ant-1.6.5 is where I exploded the 1.6.5 .tar.bz2
> distributed on the ant.apache.org site. everything chugs along great,
> until
> I get to a replaceregexp task, whereupon it blows up with the following:
>
> build.xml:916: Problem: failed to create task or type replaceregexp
> Cause: the class org.apache.tools.ant.taskdefs.optional.ReplaceRegExp was
> not found.
> This looks like one of Ant's optional components.
> Action: Check that the appropriate optional JAR exists in
> -ANT_HOME/lib
> -the IDE Ant configuration dialogs
>
> Do not panic, this is a common problem.
> The commonest cause is a missing JAR.
>
> This is not a bug; it is a configuration problem
>
>
> The ant-nodeps.jar file (which contains the
> org.apache.tools.ant.taskdefs.optional.ReplaceRegExp classfile) exists in
> /home/dmonogue/apache-ant-1.6.5/lib directory but is apparently not
> actually
> being loaded in any fashion which ant recognizes. I have tried also with
> ant
> 1.7.1 with the same results.
>
> It may be worth noting that I couldn't get any of the ant tasks to work
> until I added
>
> Java.load
>
> to the top of my buildfile, as it was then dying on such things as:
>
> NoClassDefFoundError : org/apache/tools/ant/DefaultLogger
>
>
> I only even tried the Java.load because I found something in the
> documentation which mentioned it for using external java libraries with
> buildr, and I figured it couldn't hurt to try it.
>
> Is there something obvious I've overlooked? This is the last major hurdle
> in
> proving we can use buildr for our build tool here, so any help at all is
> appreciated.
>
> Thanks,
> Damian
>