Invoking maven in a plugin?

[De Smet Ringo <Ri...@staff.telenet.be>]

Hello,
 
We have a custom plugin that, for some functionality, spawns Maven again but with other arguments. The current implementation depends on the MavenExecutor from the maven-release-plugin:2.0-beta-4. I updated the dependency to 2.0-beta-8, but in there, the API to MavenExecutor has changed to include ReleaseEnvironment and ReleaseResult arguments. I don't want to delve any further in how I could get access to such objects since I'm running the MavenExecutor outside the release context.
 
What is the best way for a plugin to spawn Maven again in a subprocess? If there is any existing code, can you give me a pointer to it, or provide me with an example? I bumped into the maven-maven-plugin from geronimo.apache.org but they just use Ant to perform an exec task specifying the mvn command line again. I was hoping there is a more intelligent solution.
 
Thanks,
 
Ringo

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Re: Invoking maven in a plugin?

[Stephen Connolly <st...@gmail.com>]

have a look at maven-invoker which is used by the maven-invoker-plugin

2008/12/23 De Smet Ringo <Ri...@staff.telenet.be>

> Hello,
>
> We have a custom plugin that, for some functionality, spawns Maven again
> but with other arguments. The current implementation depends on the
> MavenExecutor from the maven-release-plugin:2.0-beta-4. I updated the
> dependency to 2.0-beta-8, but in there, the API to MavenExecutor has changed
> to include ReleaseEnvironment and ReleaseResult arguments. I don't want to
> delve any further in how I could get access to such objects since I'm
> running the MavenExecutor outside the release context.
>
> What is the best way for a plugin to spawn Maven again in a subprocess? If
> there is any existing code, can you give me a pointer to it, or provide me
> with an example? I bumped into the maven-maven-plugin from
> geronimo.apache.org but they just use Ant to perform an exec task
> specifying the mvn command line again. I was hoping there is a more
> intelligent solution.
>
> Thanks,
>
> Ringo
>
> *************************************************************
>
> Dit e-mail bericht inclusief eventuele ingesloten bestanden kan informatie
> bevatten die vertrouwelijk is en/of beschermd door intellectuele
> eigendomsrechten. Dit bericht is uitsluitend bestemd voor de
> geadresseerde(n). Elk gebruik van de informatie vervat in dit bericht
> (waaronder de volledige of gedeeltelijke reproductie of verspreiding onder
> elke vorm) door andere personen dan de geadresseerde(n) is verboden. Indien
> u dit bericht per vergissing heeft ontvangen, gelieve de afzender hiervan te
> verwittigen en dit bericht te verwijderen.
>
> This e-mail and any attachment thereto may contain information which is
> confidential and/or protected by intellectual property rights and are
> intended for the sole use of the addressees. Any use of the information
> contained herein (including but not limited to total or partial reproduction
> or distribution in any form) by other persons than the addressees is
> prohibited. If you have received this e-mail in error, please notify the
> sender and delete its contents.
>
> Ce courriel et les annexes éventuelles peuvent contenir des informations
> confidentielles et/ou protégées par des droits de propriété intellectuelle.
> Ce message est adressé exclusivement à son (ses) destinataire(s). Toute
> utilisation du contenu de ce message (y compris la reproduction ou diffusion
> partielle ou complète sous toute forme) par une autre personne que le(s)
> destinataire(s) est formellement interdite. Si vous avez reçu ce message par
> erreur, veuillez prévenir l'expéditeur du message et en détruire le contenu.
>
> *************************************************************
>

Re: Invoking maven in a plugin?

[Benjamin Bentmann <be...@udo.edu>]

De Smet Ringo wrote:

> What is the best way for a plugin to spawn Maven again in a subprocess?

http://maven.apache.org/shared/maven-invoker/

> If there is any existing code, can you give me a pointer to it, or provide me with an example?

http://maven.apache.org/plugins/maven-invoker-plugin/
http://maven.apache.org/plugins/maven-reactor-plugin/

There exists another executor in the Maven Release Manager that also 
uses the Maven Invoker.


Benjamin

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