Let's say I have a bunch of maven modules, each with its own trunk/branches/tags. Picture something like the following.
portal_root
+project1
+tags
+branches
+trunk
+project2
.
.
.
+parent
pom.xml
If following the structure suggested in the answer to multi module maven project with parent pom and svn layout I would have the parent project at the same level as the child projects, and reference it by relative paths. However, I believe this complicates the release policy considerably.
Considering that the source was copied from trunk to tags/v*/, the relative path to the parent is no longer valid: compare ../parent/ with ../../parent. Furthermore, there is no valid parent for the tagged child, since the old parent references trunk. This leads me to the question: what is the maven best practice to build the tagged source for a module with its own SCM heirarchy?