On 08/25/2010 06:05 PM, Jacob Beard wrote:
I'm working on a Commons sandbox component which is written mostly in
JavaScript. I currently have an ant build which includes tasks to do the
following:
1. combine all of the JavaScript modules into a single file
2. minify the combined JavaScript file using the Google Closure
JavaScript compiler
3. compile the combined JavaScript file to a single Java class file
using the Rhino jsc compiler
4. create an executable JAR containing the class file.
I'm interested in working toward releasing the project, and so I'm
trying to determine what would be the most elegant way to now build this
project with Maven. Based on my understanding of the tasks performed by
Maven when staging a release, it seems to me that the compiler task
would need to be made to delegate to tasks 1-3 of the project's Ant
script. After the class file has been created with jsc, I believe the
Maven jar and assembly tasks should work as though the project were a
regular Java project.
If my understanding so far is correct, I'm wondering what is the best
way to override or customize the behaviour of Maven's compiler task so
that it delegates to Ant (probably via the antrun Maven plugin)?
The way I get this, you don't have to change the behavior of Maven's
compiler plugin.
If you check out [1], you'll see there are plenty of lifecycle phases to
hook your ant tasks (or whatnot) and perform steps 1, 2 and 3.
For example, I'd probably use generate-(re)sources/process-(re)sources
to perform 1 and 2.
For step 3, generate-sources is greate for code generation (i.e. if that
jsc thingy produces .java code), otherwise I'd just throw in the
generated class files in the target during prepare-package or,
especially if you need tests, process-classes.
Step 4 will be taken care of by maven automatically using the default
jar packaging.
Perhaps you would be interested in helping us implement 1-3 in the
maven-jstools-plugin [2] ;-)
[1]
http://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html#Lifecycle_Reference
[2] http://dev.abiss.gr/mvn-jstools
hth,
Manos
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