Yeah - you can follow the same pattern that the jruby and ant uses - using
the plexus factories to run the scripts as components. I don't know the
status of the groovy factory - but it's been removed from the parent's
module list, so I presume there was a good reason. In any case, if you can
harden the plexus groovy factory in the process, that'd be awesome.

http://svn.codehaus.org/plexus/plexus-component-factories/trunk/

I'm sure eventually some patterns will evolve so any component factory can
easily be turned into a suported maven plugin type - just add descriptor
extractor.

Eric

On 2/24/07, Jason Dillon <[EMAIL PROTECTED]> wrote:

Hey, I see that the jruby plugin does support both inline usage and
mojo-impl stuff... so I imagine it should be simple enough to have the
groovy-maven-plugin do something similar, though still need to sort out what
is there now and see how/if they can be merged together into one plugin.
--jason


On Feb 24, 2007, at 7:02 PM, Eric Redmond wrote:

Ant and JRuby plugins support both behaviors - creating plugins and
embedding scripts into the POM. For consistency there's no reason Groovy
shouldn't act the same way.

Eric

On 2/24/07, Jason Dillon <[EMAIL PROTECTED]> wrote:
>
> Here is a tiny example of the plugin actually doing something useful:
>
>      https://svn.apache.org/repos/asf/geronimo/sandbox/hokeypokey/
> trunk/pom.xml
>
> A tiny bit of logic here is used to prevent extra downloading/
> unpacking.  To make this into an official Maven plugin would be
> overkill.  And you can't really do this with antrun, because there is
> no easy way to short-circuit the bits using <get> to fetch the zip
> here.  Ant's way of doing this is to use linked targets with if/
> unless attributes, which AFAIK can't be used in antrun.  And
> personally, I'd rather see this little bit of script, than linked
> targets anyways, never did like that mess.
>
> IMO, this plugin helps folks (er me really) to solve some problems,
> and when/if I find they are generally useful outside of the scope I
> use them in, then I start to think about turning them into real Maven
> plugins...
>
> --jason
>
>
> On Feb 24, 2007, at 6:07 PM, Jason Dillon wrote:
>
> > On Feb 24, 2007, at 5:54 PM, Jason van Zyl wrote:
> >> On 24 Feb 07, at 8:22 PM 24 Feb 07, Jason Dillon wrote:
> >>
> >>> Folks, I'm thinking about moving the plugin-support module out of
> >>> Genesis and into the Mojo project.  A few plugins I maintain
> >>> there already use some parts of this, but the classes were simply
> >>> duplicated.
> >>>
> >>> I'm also planning on updating the groovy-maven-plugin at the Mojo
> >>> project to have the same features as the script-maven-plugin from
> >>> Genesis, and that plugin uses a quite a bit of the support fluff
> >>> in plugin-support.  I've talked to Jeff already about this and he
> >>> seems fine with it.
> >>
> >> I would much rather see the Groovy stuff work the same way as the
> >> Beanshell and Ruby mojos. What is the script-maven plugin exactly?
> >> Some BSF thing?
> >
> > The script-maven-plugin is really just an advanced groovy-maven-
> > plugin which I whipped up to support getting better scripting into
> > Maven, which we now use extensively in the TCK harness.
> >
> >     http://geronimo.apache.org/maven/genesis/plugins/script-maven-
> > plugin/index.html
> >
> > I had planned on adding other scripting-related muck here, though
> > turns out that Groovy was all I needed, so the name is legacy.  Its
> > basically a much more configurable/flexible implementation of:
> >
> >     http://mojo.codehaus.org/groovy-maven-plugin/
> >
> > AFAIK, BSF-like execution isn't rich enough, unless I re-write the
> > engine to allow customizing the classpath/scriptpath, etc... and
> > even then I'm not sure it will cut it.
> >
> > This is *not* for writing mojos, but for allowing groovy Scripts to
> > be run inside of Maven.  The difference might be a bit subtle, but
> > there are some times when you just need a tiny bit of scripting to
> > solve a problem, and the work to create a Maven plugin, vote/stage/
> > release it so that it can be used is just not worth the trouble.
> >
> >  * * *
> >
> > I still have some of the work I did to make richer Groovy plexus
> > components around too, which is to help make Mojo's with Groovy,
> > but I have not had time to deal with merging my bits into the bits
> > under Mojo's mojo-sandbox/groovy-maven-tools stuff.  This stuff is
> > more along the lines of the Beanshell and Ruby mojo support stuff
> > you are refering too... ie. writing Maven plugins with Groovy.  But
> > the groovy-maven-plugin (script-maven-plugin in Genesis) are
> > focuses not on building plugins, but allow projects to invoke small
> > Groovy scripts (or bigger ones, as it the case with the Geronimo
> > TCK harness).
> >
> > --jason
>
>
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--
Eric Redmond
http://codehaus.org/~eredmond <http://codehaus.org/%7Eeredmond>





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Eric Redmond
http://codehaus.org/~eredmond

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