Question

I am working on a Maven multi-modules project. I want to build a given module and skip the unit tests to speed the build process up.

I’ve tried the following:

mvn reactor:make -Dmake.folders=search -Dgoals=package,-DskipTests

mvn reactor:make -Dmake.folders=search -Dgoals=package -Dmaven.test.skip=True

However, this does not have an effect at all. Any clues?

Answer 1

Your first line looks like the right idea, but instead of -Dgoals you should use -Dmake.goals.

From the reactor plugin examples page:

The reactor plugin launches a second
copy of Maven to do its magic. This
copy of Maven doesn’t necessarily have
all of the flags and options that you
passed to your first copy of Maven,
including the –debug flag, system
properties, and -DskipTests.

You can pass additional arguments to
the spawned Maven by treating them as
goals with -Dmake.goals, like this:

mvn reactor:resume -Dmake.folders=barBusinessLogic -Dmake.goals=install,-DskipTests

In other words, the “goals” are just
extra command-line parameters passed
to the spawned Maven; they don’t
necessarily have to be “goals.”

If you want to get really fancy, you
may prefer to just dry run the reactor
plugin in -Dmake.printOnly mode,
described above. That will print out
the command that the plugin would have
used to build, but you can tweak that
command line to your heart’s content!