Reference an XSD file from different XMLs sitting in different project modules?

Question

I have an XSD file that is referenced in three different XML files in different project modules using:

<item-groups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="xml_schemas/item_groups.xml.xsd">

I have been trying to figure how to avoid manually copying the XSD into every module that needs it, so I don't have to maintain three files instead of one.

Is there a way in maven that I can have only one version in one of my modules, and at build time it copies it over to the other two?

Thanks!

Answer 1

Assuming the XSD is packaged in at least one module, it should be possible to achieve what you want with the Maven Dependency plugin and dependency:unpack. The idea would be to bind the goal on generate-resources to unpack the XSD from the module having it (using includes to pick up exactly what you want) and write it where required. See the Unpacking specific artifacts for a full example.