https://github.com/apache/maven/blob/master/maven-core/src/main/java/org/apache/maven/AbstractMavenLifecycleParticipant.java#L44
afterProjectsRead sorry

So long story short you have a clean way to handle SPI from plugins with
explicit configuration from the pom or transversally from an extension.
I don't see a case in between since user is not able to consume it.

Romain Manni-Bucau
@rmannibucau <https://twitter.com/rmannibucau> |  Blog
<https://rmannibucau.metawerx.net/> | Old Blog
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<https://www.packtpub.com/application-development/java-ee-8-high-performance>


Le lun. 6 mai 2024 à 15:48, Tamás Cservenák <ta...@cservenak.net> a écrit :

> Romain,
>
> could you elaborate what you mean by this:
> "At startup it does not need to be there, so there is no issue there while
> you resolve the plugin dependency you inject from the extension in
> afterModelRead normally."
>
> What is "afterModelRead"?
>
> T
>
>
> On Mon, May 6, 2024 at 3:40 PM Romain Manni-Bucau <rmannibu...@gmail.com>
> wrote:
>
> > Tamas, the extension can inject the configuration which is instantiated
> > when the mojo will be executed.
> > At startup it does not need to be there, so there is no issue there while
> > you resolve the plugin dependency you inject from the extension in
> > afterModelRead normally.
> >
> > Romain Manni-Bucau
> > @rmannibucau <https://twitter.com/rmannibucau> |  Blog
> > <https://rmannibucau.metawerx.net/> | Old Blog
> > <http://rmannibucau.wordpress.com> | Github <
> > https://github.com/rmannibucau> |
> > LinkedIn <https://www.linkedin.com/in/rmannibucau> | Book
> > <
> >
> https://www.packtpub.com/application-development/java-ee-8-high-performance
> > >
> >
> >
> > Le lun. 6 mai 2024 à 15:36, Tamás Cservenák <ta...@cservenak.net> a
> écrit
> > :
> >
> > > Laeubi,
> > >
> > > How does tycho use plugin-spi? Can you show me some Tycho plugin-spi
> > > examples?
> > >
> > > As in case of Maven (proper, so "vanilla"), core extension is loaded
> > first
> > > (early), that would like to define SPI implementations, but the plugin
> > that
> > > would carry SPI interfaces, if SPI would be within plugin as proposed,
> is
> > > "yet to be seen", will be loaded by mvn core on first encounter in
> > > lifecycle. Or, if both load SPI interfaces, they will end up in two
> > > classloaders, again defunct.
> > >
> > > And yes, this solution would enable -- depending on SPI -- to extend
> > > existing SPI enabled-plugin in various ways, without touching the
> > > build/POMs itself.
> > >
> > >
> > > T
> > >
> > >
> > > On Mon, May 6, 2024 at 2:46 PM Christoph Läubrich <m...@laeubi-soft.de
> >
> > > wrote:
> > >
> > > > Hi Tamas,
> > > >
> > > > I'm specifically asking because Tycho has already a plugin-spi
> support
> > > > we use to a great extent, so if there would be a general usable
> > solution
> > > > that would be great I even asked many times for it but always got
> "use
> > > > an extension" so I wonder what changed the mind of maven-devs or if
> it
> > > > will be just another thing exclusive to "maven-core-plugins" or can
> > > > other reuse that (how?). And if others can reuse it, why have a
> > > > dedicated repository and not use the repository of the plugin that
> > > > offers the spi?
> > > >
> > > > Am 06.05.24 um 14:08 schrieb Tamás Cservenák:
> > > > > Howdy,
> > > > >
> > > > > I'd like to create a new ASF Maven git repo "maven-plugin-spi".
> > > > >
> > > > > This repository would hold SPIs as explained here
> > > > > https://cwiki.apache.org/confluence/display/MAVEN/Maven+Plugin+SPI
> > > > >
> > > > > Designated G: "org.apache.maven.maven-plugin-spi"
> > > > >
> > > > > For now, we have two candidates to apply SPI pattern:
> > > > > * maven-deploy-plugin (yet to be added)
> > > > > * maven-gpg-plugin (already have it, but in unusable form, as it
> does
> > > not
> > > > > follow pattern from wiki)
> > > > >
> > > > > Example GAs:
> > > > > org.apache.maven.maven-plugin-spi:maven-deploy-spi
> > > > > org.apache.maven.maven-plugin-spi:maven-gpg-spi
> > > > >
> > > > > Thanks
> > > > > T
> > > > >
> > > >
> > > > ---------------------------------------------------------------------
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> > > > For additional commands, e-mail: dev-h...@maven.apache.org
> > > >
> > > >
> > >
> >
>

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