Support changing/configuring the text in the REPL prompt

[blueberry]

When I have a long nested namespace, it takes a lot of the screen width... So, instead of something.something.something.something.something.myns> i would like it to just display the last part, myns>

I asked on slack clojurians whether this is possible now, and Bozidar says it is not, so I assume he should know. He also said it should not be complicated to support, and seems reasonable, so I have hopes :)

Thanks for the great development environment!

[cichli]

You can accomplish this using cider-repl-prompt-function:

(setq cider-repl-prompt-function (lambda (ns)
                                   (format "%s> " (car (last (split-string ns "\\."))))))

I'll keep this open as a reminder to myself to add this to the README :-).

[Malabarba]

I think it would be nice to have some more functions available for this, for the users who don't know how to write them.
I'll open a PR with a couple options.

[Malabarba]

@blueberry The behaviour you wanted is now available with

(setq cider-repl-prompt-function #'cider-repl-prompt-lastname)

But you may or may not prefer this one:

(setq cider-repl-prompt-function #'cider-repl-prompt-abbreviated)