среда, 14 июня 2017 г.

Event Sourcing part 1

Spacemacs + smartscan

Very handy package - Smartscan for Clojure code editing, renaming local vars in fn, jumping to usages & more.

Spacemacs + Cider + 2 repls

When we use EMACS/Spacemacs and want to use two repls for CLJ and CLJS then
1. just add (add-to-list 'auto-mode-alist '("\.cljs$" . clojurescript-mode)) to init.el to enable clojurescript-mode for cljs files (otherwise it will be clojure mode with some problems in CLJS).
2. Select CLJ file and run cider-jack-in to run Clojure REPL
3. Select CLJS file (check that EMACS in Clojurescript mode) and run cider-jack-in-clojurescript or run cider-jack-in and then  (require'[ figwheel-sidecar.repl-api :as f]) and
(f/start-figwheel!) and (f/cljs-repl)

If I need to work with two different Clojure REPLs and eval S-forms I do following.

Run two REPLs by cider-jack-in command. 

To switch between REPL connections:
1. M-x and choose cider-toogle-request-dispatch to set CIDER variable to static mode
2. choose appropriate repl window and run command: cider-make-connection-default

Now, all S-exp will be evaluated in a default repl process.