I always lock down all plugin versions in my production at release time
and use snapshots, if needed, during development time.  The draw back is
that the release date is heavily depent on all snapshot plugins to be
released first.
Lucky, i have internal repo to deploy a known snapshot.  For your case
it will be tough, since you dont have  an internal repo to fall back.

-D

On 1/22/07, Barrie Treloar <[EMAIL PROTECTED]> wrote:

On 1/23/07, mraible <[EMAIL PROTECTED]> wrote:
>
> What's the best way to specify versions for Maven Plugins. In the
AppFuse
> project, we're distributing archetypes that have plugins pre-defined in
the
> pom.xml files.
>
> Should we:
>
> 1. Have no version
> 2. Use the latest version in the Maven repo
> 3. Use <version>LATEST</version>
> 4. Use <version>RELEASE</version>
>
> We've been using #1 and the downside seems to be that snapshot
repositories
> are checked for updates. Does this problem go away when we don't depend
on
> any snapshots?

Yes, this is what lead me to write
http://docs.codehaus.org/display/MAVENUSER/Patching+Maven+Plugins

So that I could enjoy the benefits of a snapshot plugin but without
bringing in every other plugin at the same time.

If you are not in a corporate environment where you can setup an
internal repository you may have more issues to resolve. e.g. there is
a defect (I don't know if it is in JIRA yet) where if different
versions of the artifact reside in different repositories then the
artifact incorrectly resolves to central.  This has the effect that
maven thinks your newly internally released plugin is available on
central, when of course it is not. Wrapping with mvn-proxy hides this
problem by aggregating all the repositories.

> #2 seems good, but it requires our users to manually update the version
> number when a new release comes out.
>
> I'm looking for the method that doesn't cause a slowdown (i.e. checking
> repos for updates) in the build process, but auto-upgrades when new
releases
> come out.  We have found issues with some plugins (i.e. Jetty 6.0.1doesn't
> work with JSF), so for those we're willing to hard-code the plugin
version.

I would have thought that
* no version
* LATEST
* RELEASE
all resolve to the same version on a non-snapshot repository.

I'm happily using "1) Have no version" in conjunction with internally
releasing snapshot plugins that I require.  The benefit is also that
when an official release occurs my internally released snapshot is no
longer used.  The downside is that I must check to make sure all the
defects I had patched in my internally released plugin are applied to
the official release.

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