How to list active sub-modules in a Maven project?

Question

I have a complex project where there are many directories that have POM files, but only some of which are sub-modules (possibly transitively) of a particular parent project.

Answer 1

The following script prints artifactId's of all sub-modules:

mvn -Dexec.executable='echo' -Dexec.args='${project.artifactId}' exec:exec -q

Example output:

build-tools
aws-sdk-java-pom
core
annotations
utils
http-client-spi
http-client-tests
http-clients
apache-client
test-utils
sdk-core
...