Re: [aether-users] Determining the GAV of poms in remote repository

[Benjamin Bentmann <bentmann@xxxxxxxxxxxx>]

Samuel Cox wrote:

> I posted the following to the Maven mailing list, but I'm guessing this
> list is more appropriate.  Essentially, what I need is the following
> function:
>
> gav(File settingsXml, File pom) => GAV coordinates

Aether is about artifacts and repositories, not pom.xml or settings.xml 
reading. So this mailing list is not the appropriate place to ask about 
Maven-specific functionality.

> I'm writing a standalone program that needs to find the GAV coordinates for
> a Maven pom file, which is retrieved from Subversion.  In the simple case,
> this is easy.  I just parse the pom.  However, things get much more
> complicated when only the artifactId is present.
>
> Is this possible?  It seems like it should be since Maven can build the
> project if I check it out (presumably by resolving all the parent stuff).

For any well-maintained POM file, its GAV can be determined from just 
that file, either from project.groupId|artifactId|version or from 
project.parent.groupId|artifactId|version if former values are omitted.

Maven itself uses DefaultProjectBuilder, DefaultSettingsBuilder and a 
couple other components to build the full MavenProject instance. Details 
about said components can be asked on the Maven mailing lists or just 
gleaned from Maven's source code.


Benjamin