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spacemacs/layers/+lang/scala/packages.el
2018-01-04 02:00:25 -05:00

149 lines
4.6 KiB
EmacsLisp

;;; packages.el --- Scala Layer packages File for Spacemacs
;;
;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(setq scala-packages
'(
eldoc
ensime
flycheck
flyspell
ggtags
counsel-gtags
helm-gtags
noflet
org
scala-mode
sbt-mode
))
(defun scala/post-init-eldoc ()
(when scala-enable-eldoc
(add-hook 'scala-mode-hook #'spacemacs//java-setup-ensime-eldoc)))
(defun scala/pre-init-ensime ()
(spacemacs|use-package-add-hook ensime
:pre-config (add-to-list 'java--ensime-modes 'scala-mode)))
(defun scala/post-init-ensime ()
(use-package ensime
:defer t
:init
(progn
(add-hook 'scala-mode-hook #'spacemacs//scala-setup-ensime)
(when scala-auto-start-ensime
(add-hook 'scala-mode-hook 'spacemacs//ensime-maybe-start)))
:config
(progn
;; Enable Expand Region integration from Ensime. Ignore load errors to
;; handle older Ensime versions gracefully.
(when (configuration-layer/package-used-p 'expand-region)
(require 'ensime-expand-region nil 'noerror)))))
(defun scala/post-init-flycheck ()
(spacemacs/enable-flycheck 'scala-mode)
;; Don't use scala checker if ensime mode is active, since it provides
;; better error checking.
(with-eval-after-load 'flycheck
(add-hook 'ensime-mode-hook 'spacemacs//scala-disable-flycheck-scala)))
(defun scala/post-init-flyspell ()
(spell-checking/add-flyspell-hook 'scala-mode)
(add-hook 'scala-mode-hook #'spacemacs//java-setup-ensime-flyspell))
(defun scala/init-noflet ()
(use-package noflet))
(defun scala/pre-init-org ()
(spacemacs|use-package-add-hook org
:post-config (add-to-list 'org-babel-load-languages '(scala . t))))
(defun scala/init-sbt-mode ()
(use-package sbt-mode
:defer t
:init (spacemacs/set-leader-keys-for-major-mode 'scala-mode
"b." 'sbt-hydra
"bb" 'sbt-command)))
(defun scala/init-scala-mode ()
(use-package scala-mode
:defer t
:init
(progn
(dolist (ext '(".cfe" ".cfs" ".si" ".gen" ".lock"))
(add-to-list 'completion-ignored-extensions ext)))
:config
(progn
;; Automatically insert asterisk in a comment when enabled
(defun scala/newline-and-indent-with-asterisk ()
(interactive)
(newline-and-indent)
(when scala-auto-insert-asterisk-in-comments
(scala-indent:insert-asterisk-on-multiline-comment)))
(evil-define-key 'insert scala-mode-map
(kbd "RET") 'scala/newline-and-indent-with-asterisk)
;; Automatically replace arrows with unicode ones when enabled
(defconst scala-unicode-arrows-alist
'(("=>" . "")
("->" . "")
("<-" . "")))
(defun scala/replace-arrow-at-point ()
"Replace the arrow before the point (if any) with unicode ones.
An undo boundary is inserted before doing the replacement so that
it can be undone."
(let* ((end (point))
(start (max (- end 2) (point-min)))
(x (buffer-substring start end))
(arrow (assoc x scala-unicode-arrows-alist)))
(when arrow
(undo-boundary)
(backward-delete-char 2)
(insert (cdr arrow)))))
(defun scala/gt ()
"Insert a `>' to the buffer.
If it's part of a right arrow (`->' or `=>'),replace it with the corresponding
unicode arrow."
(interactive)
(insert ">")
(scala/replace-arrow-at-point))
(defun scala/hyphen ()
"Insert a `-' to the buffer.
If it's part of a left arrow (`<-'),replace it with the unicode arrow."
(interactive)
(insert "-")
(scala/replace-arrow-at-point))
(when scala-use-unicode-arrows
(define-key scala-mode-map
(kbd ">") 'scala/gt)
(define-key scala-mode-map
(kbd "-") 'scala/hyphen))
(evil-define-key 'normal scala-mode-map "J" 'spacemacs/scala-join-line)
;; Compatibility with `aggressive-indent'
(setq scala-indent:align-forms t
scala-indent:align-parameters t
scala-indent:default-run-on-strategy
scala-indent:operator-strategy))))
(defun scala/post-init-ggtags ()
(add-hook 'scala-mode-local-vars-hook #'spacemacs/ggtags-mode-enable))
(defun scala/post-init-counsel-gtags ()
(spacemacs/counsel-gtags-define-keys-for-mode 'scala-mode))
(defun scala/post-init-helm-gtags ()
(spacemacs/helm-gtags-define-keys-for-mode 'scala-mode))