CODEWITHSUNDEEP
clojureleiningen
Anthony
Anthony

Reputation: 2050

How to run library's `main` with Leiningen?

I had used some library, let's say it is Clojure itself (which is always added to project.clj). Clojure provides clj CLI tool (which is src/cli/clojure/main.clj, but nevermind). How to use it with lein? I mean, is there any command/plugin/technique which will allow me to use library's main?

Upvotes: 1

Views: 403

Answers (1)

Alan Thompson
Alan Thompson

Reputation: 29966

Every Var in every namespace is equal in the eyes of Clojure. From your code, just execute like:

   (some.awesome.lib/-main ...)

or whatever the fully-qualified symbol pointing to the Var in question.

For further details, please see this question:

Also

See the output of

> lein help run

Using lein, you can type

lein run -m my.awesome.proj/some-fn

or

lein run -m some.awesome.lib/-main

since to Clojure some.awesome.lib/-main is no different than any other function (the hyphen prefix on -main is just a convention and makes no difference to the Clojure compiler).

You can also set up project.clj to automatically call any function of your choosing when you type lein run by adding:

:main some.awesome.lib/-main

Upvotes: 1

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