scala-config.el

(require 'package) ;; You might already have this line
(let* ((no-ssl (and (memq system-type '(windows-nt ms-dos))
                    (not (gnutls-available-p))))
       (url (concat (if no-ssl "http" "https") "://stable.melpa.org/packages/")))
  (add-to-list 'package-archives (cons "melpa-stable" url) t))
(when (< emacs-major-version 24)
  ;; For important compatibility libraries like cl-lib
  (add-to-list 'package-archives '("gnu" . "http://elpa.gnu.org/packages/")))
(package-initialize) ;; You might already have this line

;;We have "sbt" and "scala" in /usr/local/bin so we add this path to the PATH environment
(setq exec-path (append exec-path '("/usr/local/bin")))
(setq exec-path (append exec-path '("/usr/local/sbin")))
(setenv "PATH" (shell-command-to-string "/bin/bash -c 'echo -n $PATH'"))


(use-package smartparens
  :diminish smartparens-mode
  :commands
  smartparens-strict-mode
  smartparens-mode
  sp-restrict-to-pairs-interactive
  sp-local-pair
  :init
  (setq sp-interactive-dwim t)
  :config
  (require 'smartparens-config)
  (sp-use-smartparens-bindings)

  (sp-pair "(" ")" :wrap "C-(") ;; how do people live without this?
  (sp-pair "[" "]" :wrap "s-[") ;; C-[ sends ESC
  (sp-pair "{" "}" :wrap "C-{")

  ;; WORKAROUND https://github.com/Fuco1/smartparens/issues/543
  (bind-key "C-<left>" nil smartparens-mode-map)
  (bind-key "C-<right>" nil smartparens-mode-map)

  (bind-key "s-<delete>" 'sp-kill-sexp smartparens-mode-map)
  (bind-key "s-<backspace>" 'sp-backward-kill-sexp smartparens-mode-map))


(use-package projectile
  :demand
  :init   (setq projectile-use-git-grep t)
  :config (projectile-global-mode t)
  :bind   (("s-f" . projectile-find-file)
           ("s-F" . projectile-grep)))


(use-package flycheck-cask
  :commands flycheck-cask-setup
  :config (add-hook 'emacs-lisp-mode-hook (flycheck-cask-setup)))

(use-package eldoc
  :ensure nil
  :diminish eldoc-mode
  :commands eldoc-mode)

(use-package yasnippet
  :diminish yas-minor-mode
  :commands yas-minor-mode
  :config (yas-reload-all))

(use-package ensime
  :ensure t
  :pin melpa-stable)

(defun scala-mode-newline-comments ()
	    "Custom newline appropriate for `scala-mode'."
	    ;; shouldn't this be in a post-insert hook?
	    (interactive)
	    (newline-and-indent)
	    (scala-indent:insert-asterisk-on-multiline-comment))
	  

(add-hook 'scala-mode-hook
          (lambda ()
            (show-paren-mode)
            (smartparens-mode)
            (yas-minor-mode)
            (company-mode)
            (ensime-mode)
            (scala-mode:goto-start-of-code)
	    (bind-key "RET" 'scala-mode-newline-comments scala-mode-map)))