CIDER 0.9 is finally out and it’s our best release yet (believe it or not)! It took a lot more time than I originally anticipated, but at least we managed to ship in time for EuroClojure!

There are a ton of important changes and new features in 0.9 and now I’ll go quickly through some of them.

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Octopress 3.0

Can’t wait for Octopress 3.0 to be released! Octopress 2 is killing me and I was seriously considering going back to a plain Jekyll blog, before I saw 3.0 is right around the corner.

Any day now…

Update: Never got to upgrade to Octopress 3.0. Eventually (3 years later), I went back to Jekyll. If only I had done this earlier!

Introducing Inf-clojure - a Better Basic Clojure REPL for Emacs

At Clojure/conj I had the chance to shake Rich Hickey’s hand and exchange a few words with him. When I asked him whether he currently uses CIDER or Cursive for Clojure development he replied that he preferred a simpler solution – clojure-mode & inferior-lisp-mode. I was a bit surprised because clojure-mode’s integration with inferior-lisp-mode sucks (big time). It has always been extremely limited and was never really improved/extended. It has no Clojure specific features and no code completion. I felt that Rich and all the people using inferior-lisp-mode deserved something better, so I quickly put together inf-clojure.

inf-clojure provides some Clojure specific features like showing a var’s doc or source, derives some core functionality from clojure-mode and even features basic code-completion (and company-mode support). That’s not much admittedly, but it’s a good start. Extending inf-clojure is super easy and I expect that we’ll add a bit more features to it along the way (e.g. macroexpansion).

inf-clojure is available in MELPA and will eventually replace completely inferior-lisp-mode when clojure-mode 4.0 is released.

Keep in mind that inf-clojure is nothing like CIDER and will never be. CIDER will always be the powertool for Clojure programming in Emacs. I do understand, however, that some people are overwhelmed by CIDER and some people simply don’t need anything sophisticated. I hope they’ll enjoy inf-clojure!

A CIDER Unsession at Clojure/conj

I’ll be talking about the evolution of CIDER at the conj, but I won’t be able to show much (in terms of features) during my talk. Luckily, however, beside the talks we also have the option for unsessions. Here’s my proposal for one such unsession…

I’d like to do a more extensive demonstration of the general workflow with CIDER and all the cool things we’ve done recently and I’d also like discuss with our users (and potential users) existing problems, ideas for improvements and the future direction of the project. If you like my idea you can show your support for it here.

Feedback is important and I’d like to get as much as possible to make CIDER better!