Add a leinify command

[kytrinyx]

See exercism/exercism#1663 and https://gist.github.com/rubysolo/d0c03cc4d5d62cfb0070 (from @rubysolo) for context and a prototype.

I'm thinking create a new handler, Leinify() in the handlers package that will read the config, get the exercism directory, and for each directory in the clojure subdirectory, leinify any not-already leinified problems.

It would bail with an error message if it can't find the exercism dir, or if it can't find a clojure directory in within it.

I haven't looked at whether or not it's straight forward to figure out if something has been leinified or not, but at first glance it seems like that should be straight-forward.

[canweriotnow]

'leinification' should primarily be as simple as generating a proper basic project.clj and moving files to the idiomatic paths (src/{{projectname}},test/{{projectname}} and handling the requires; I think the best way to do this, honestly, would be to create a lein-template for slurping in an existing project dir and using it to generate a new lein project with sensible defaults, rather than having the CLI itself try to figure out how to generate Clojure. I could work on this if it's desired to go that route.

Then exercism CLI could just invoke lein exercise {{dirname}} to reconfigure it, or people could do it manually with leiningen.

[kytrinyx]

That sounds like a sensible approach. I'd be happy to do any of the work necessary on the CLI to tie things together.

[canweriotnow]

Cool... I can't promise when I'll have time to dive into it, but lein is pretty easy to hack, so I'll put that in the bucket with continuing to work on exercism-emacs now that xscheme is launched :)

[kytrinyx]

What's the status on this. Do we still want to have the leinify command?

[Tonkpils]

My two cents on this after thinking about it for a while is that we probably should not add this to the CLI. I think it's an edge case and seems very odd to have it if a user is not using clojure.

[kytrinyx]

Agreed. Maybe there could be an exercism-leinify clojure script or something that people could use if they wanted to.

I'm closing this.