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From Benson Margulies <bimargul...@gmail.com>
Subject Re: Set specific plugin versions for a project - issue in plugin-registry.xml/maven-metada-local.xml
Date Mon, 25 Jul 2011 22:03:46 GMT
As a general principle, the design of maven is trending toward locking
down the versions of plugins for a build. Otherwise, you can't grab an
old version of the source from a tag and depend on building it.

Therefore, the idea of a separate 'control panel' for plugin versions
is not popular. Global settings.xml is about the best you are going to
do. Some day, conceivably, even that might stop working, but don't
lose sleep over it.

On Mon, Jul 25, 2011 at 5:26 PM, Kasun Gajasinghe <kasunbg@gmail.com> wrote:
> On Mon, Jul 25, 2011 at 9:46 PM, Damian Bradicich
> <dbradicich@sonatype.com> wrote:
>> But why ?  simply have a top level parent pom that is solely for defining
>> your plugin versions (and anything else that may cover all of your
>> projects), you don't need any project specific logic in there.  The parent
>> doesn't need to list any of the children that use it (and act as an
>> aggregator), that is just a common use of a parent.
>
> This would not work because the parent-pom file you are saying will be
> static. By static I meant that the parent pom file can not be modified
> later on after it goes in to the m2 repo. So, when a need arise to add
> a new plugin version, how it can be done?
> The way to do this is by maintaining maven-metadata.xml files which
> exists one per plugin under m2 repo (for example, for
> maven-compiler-plugin, it's in
> ~/.m2/repository/org/apache/maven/plugins/maven-compiler-plugin/maven-metadata*.xml).
> This way, I don't have a problem when a new plugin is added to the
> repo, right?
>
> It doesn't really matter whether this can be done via
> maven-metadata.xml or by some other means. We just need to make the
> setting details file per-plugin.
>
> --Kasun
>
>>
>> Damian
>>
>> On Mon, Jul 25, 2011 at 11:30 AM, Kasun Gajasinghe <kasunbg@gmail.com>wrote:
>>
>>> On Mon, Jul 25, 2011 at 5:34 PM, Damian Bradicich
>>> <dbradicich@sonatype.com> wrote:
>>> > err...pluginManagement section even ;)
>>> >
>>> > Damian
>>> >
>>> > On Mon, Jul 25, 2011 at 8:02 AM, Damian Bradicich
>>> > <dbradicich@sonatype.com>wrote:
>>> >
>>> >> Why not define the pluginDependency section in a parent pom, then each
>>> of
>>> >> your projects uses this as a parent, and pulls in all the plugin dep
>>> >> versions defined in it (or overrides in project pom if necessary).
>>>  Seems
>>> >> that would be simplest solution
>>>
>>> Since these projects are unrelated, they can't be glued together via a
>>> parent pom.
>>>
>>> Thanks,
>>> --Kasun
>>>
>>> >>
>>> >> Damian
>>> >>
>>> >>
>>> >> On Mon, Jul 25, 2011 at 7:43 AM, Benson Margulies <
>>> bimargulies@gmail.com>wrote:
>>> >>
>>> >>> I don't know about plugin-registry.xml, but you can distribute a
>>> >>> settings.xml for use with -gs that has an active-by-default profile
>>> >>> with a pluginManagement section that does the job.
>>> >>>
>>> >>> On Mon, Jul 25, 2011 at 3:02 AM, Kasun Gajasinghe <kasunbg@gmail.com>
>>> >>> wrote:
>>> >>> > Hi,
>>> >>> > I have a requirement where I need to specify specific versions
for a
>>> >>> > set of (basic) plugins. Adding the versions to the pom isn't
an
>>> option
>>> >>> > because we need to set the plugin versions for a vast number
of
>>> >>> > _unrelated_ builds.
>>> >>> > As I've found at [1], I've manually created a plugin-registry.xml
>>> file
>>> >>> > with needed plugin versions added. In addition to that, I've
created
>>> >>> > maven-metadata-local.xml file in the m2 repo under the plugin
>>> >>> > directories, pointing to <latest> and <release>
versions.
>>> >>> >
>>> >>> > But, unfortunately, these specified versions were not picked
up by
>>> >>> > mvn. I needed latest maven-compiler-plugin version 2.3.2, but
it
>>> >>> > always try to use 2.0.2. I've noticed that [1] is somewhat
outdated
>>> >>> > because --check-plugin-latest parameter doesn't available anymore.
>>> So,
>>> >>> > I'm asking, does the plugin-registry.xml is still used by maven?
If
>>> >>> > not what is the mechanism for specifying specific plugin versions
>>> >>> > (apart from current/parent pom)?
>>> >>> >
>>> >>> > (I've seen in some posts that the plugin-registry.xml isn't
used
>>> >>> > anymore, but debug mode shows that mvn retrieves data from
that file.
>>> >>> > ) Apparently, maven-metada-local.xml isn't created automatically
for
>>> >>> > me either. How I can instruct mvn to do that?
>>> >>> >
>>> >>> > My plugin-registry.xml is at [2]. (There wasn't a template
for that.
>>> >>> > So, hope the format is correct!). maven-metadata-local.xml
of
>>> >>> > maven-compiler-plugin is at [3].
>>> >>> > I'm using official apache maven-2.2.1 build.
>>> >>> >
>>> >>> > Your help is much appreciated.
>>> >>> >
>>> >>> > [1]
>>> >>>
>>> http://maven.apache.org/guides/introduction/introduction-to-plugin-registry.html
>>> >>> > [2] http://pastebin.com/yprQU2D2
>>> >>> > [3] http://pastebin.com/Y375dwMg
>>> >>> >
>>> >>> > Thanks,
>>> >>> > --Kasun
>>> >>> >
>>> >>> > --
>>> >>> > ~~~*******'''''''''''''*******~~~
>>> >>> > Kasun Gajasinghe,
>>> >>> > University of Moratuwa,
>>> >>> > Sri Lanka.
>>> >>> > Blog: http://blog.kasunbg.org
>>> >>> > Twitter: http://twitter.com/kasunbg
>>> >>> >
>>> >>> > ---------------------------------------------------------------------
>>> >>> > To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
>>> >>> > For additional commands, e-mail: dev-help@maven.apache.org
>>> >>> >
>>> >>> >
>>> >>>
>>> >>> ---------------------------------------------------------------------
>>> >>> To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
>>> >>> For additional commands, e-mail: dev-help@maven.apache.org
>>> >>>
>>> >>>
>>> >>
>>> >
>>>
>>>
>>>
>>> --
>>> ~~~*******'''''''''''''*******~~~
>>> Kasun Gajasinghe,
>>> University of Moratuwa,
>>> Sri Lanka.
>>> Blog: http://blog.kasunbg.org
>>> Twitter: http://twitter.com/kasunbg
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
>>> For additional commands, e-mail: dev-help@maven.apache.org
>>>
>>>
>>
>
>
>
> --
> ~~~*******'''''''''''''*******~~~
> Kasun Gajasinghe,
> University of Moratuwa,
> Sri Lanka.
> Blog: http://blog.kasunbg.org
> Twitter: http://twitter.com/kasunbg
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
> For additional commands, e-mail: dev-help@maven.apache.org
>
>

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