Hi Val,

Most of the time you just need

mvn clean install

sometimes if you can't be bothered with the test suite

mvn clean install -DskipTests

is also useful.

And if you just want to run tests you can do,

mvn clean test

Maven is a dependency management tool the actual compilation(much like make is) is passed off to javac, and as such .m2 is where all the OODT(and any other maven projects) dependencies are stored so it can build it again and reuse the old dependencies if they've not changed as thats quicker than downloading them all again.

The other goals are largely called by other processes or used for building the old website etc, so you can ignore them.

OODT is also a multimodule project so if you call maven from the top level you'll build all the modules, if you are only interested in a specific module you can also call it from within that modules directory and it will build that specific module.

Hope that helps.

Tom


On 06/11/14 15:15, Mallder, Valerie wrote:
Hello Everyone,

Where is the best place I should look to find out what each of the maven "goals" actually do?  I am 
new to 'maven' but very familiar with 'make'.  I am used to using "make install" to build my 
application and 'install' it into the place where my users will run it from.  But, it looks like "mvn 
install" does something complete different. I have noticed it is installing things in an .m2 folder in 
my home directory. (What the heck is this .m2 folder and why do I need it?)

So I thought I would just ask the general question where do I go to find out 
what all of the goals listed below actually do?

Thanks,
Val


validate,
initialize,
generate-sources,
process-sources,
generate-resources,
process-resources,
compile,
process-classes,
generate-test-sources,
process-test-sources,
generate-test-resources,
process-test-resources,
test-compile,
process-test-classes,
test,
prepare-package,
package,
pre-integration-test,
integration-test,
post-integration-test,
verify,
install,
deploy,
pre-site,
site,
post-site,
site-deploy,
pre-clean,
clean,
post-clean.

Valerie A. Mallder

New Horizons Deputy Mission System Engineer
The Johns Hopkins University/Applied Physics Laboratory
11100 Johns Hopkins Rd (MS 23-282), Laurel, MD 20723
240-228-7846 (Office) 410-504-2233 (Blackberry)




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