Saul <[email protected]> writes:
> Hello,
> I'm moving a small project over from maven built scala to leiningen
> built clojure. One of the features that was available with the maven
> scala plugin was the ability to run scala scripts:
>
> mvn scala:script -DscriptFile=scripts/build_db.scala
>
> This is useful for doing project specific tasks that are too
> specialised for a plugin such as downloading content or sending
> emails. It would be really cool to be able to do something like this
> in leiningen.
For small tasks, you can simply define them in project.clj. Just use with-ns:
(use 'clojure.contrib.with-ns)
(with-ns 'leiningen.build-db
(defn build-db
"Build a DB from scratch."
[project & args]
(do things to build the db)))
Tasks are simply functions named $TASK defined in the leiningen.$TASK
namespace. They take a project arg as well as any further command-line
arguments.
Of course, for anything longer than a few lines you're not going to want
it in project.clj. But you can include a src/leiningen/ for your longer
custom tasks. There shouldn't be any problems with that, but I haven't
tried it myself to confirm.
-Phil
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