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spacemacs/layers/+lang/haskell/packages.el

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EmacsLisp

;;; packages.el --- Haskell Layer packages File for Spacemacs
;;
;; Copyright (c) 2012-2014 Sylvain Benner
;; Copyright (c) 2014-2015 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 haskell-packages
'(
cmm-mode
company
company-ghc
company-cabal
flycheck
flycheck-haskell
ghc
haskell-mode
haskell-snippets
hindent
shm
))
(defun haskell/init-cmm-mode ()
(use-package cmm-mode
:defer t))
(defun haskell/post-init-flycheck ()
(spacemacs/add-flycheck-hook 'haskell-mode))
(when (configuration-layer/layer-usedp 'syntax-checking)
(defun haskell/init-flycheck-haskell ()
(use-package flycheck-haskell
:if (configuration-layer/package-usedp 'flycheck)
:commands flycheck-haskell-configure
:init (add-hook 'flycheck-mode-hook 'flycheck-haskell-configure))))
(defun haskell/init-ghc ()
(use-package ghc
:defer t
:if haskell-enable-ghc-mod-support
:init (add-hook 'haskell-mode-hook 'ghc-init)
:config
(when (configuration-layer/package-usedp 'flycheck)
;; remove overlays from ghc-check.el if flycheck is enabled
(set-face-attribute 'ghc-face-error nil :underline nil)
(set-face-attribute 'ghc-face-warn nil :underline nil))))
(defun haskell/init-haskell-mode ()
(use-package haskell-mode
:defer t
:init
(progn
(defun spacemacs//force-haskell-mode-loading ()
"Force `haskell-mode' loading when visiting cabal file."
(require 'haskell-mode))
(add-hook 'haskell-cabal-mode-hook
'spacemacs//force-haskell-mode-loading))
:config
(progn
;; Haskell main editing mode key bindings.
(defun spacemacs/init-haskell-mode ()
;; use only internal indentation system from haskell
(if (fboundp 'electric-indent-local-mode)
(electric-indent-local-mode -1))
(when haskell-enable-shm-support
;; in structured-haskell-mode line highlighting creates noise
(setq-local global-hl-line-mode nil)))
(defun spacemacs/haskell-interactive-bring ()
"Bring up the interactive mode for this session without
switching to it."
(interactive)
(let* ((session (haskell-session))
(buffer (haskell-session-interactive-buffer session)))
(display-buffer buffer)))
;; hooks
(add-hook 'haskell-mode-hook 'spacemacs/init-haskell-mode)
(add-hook 'haskell-cabal-mode-hook 'haskell-cabal-hook)
;; settings
(setq
;; Use notify.el (if you have it installed) at the end of running
;; Cabal commands or generally things worth notifying.
haskell-notify-p t
;; To enable tags generation on save.
haskell-tags-on-save t
;; Remove annoying error popups
haskell-interactive-popup-errors nil
;; Better import handling
haskell-process-suggest-remove-import-lines t
haskell-process-auto-import-loaded-modules t
;; Disable haskell-stylish on save, it breaks flycheck highlighting
haskell-stylish-on-save nil)
;; prefixes
(spacemacs/declare-prefix-for-mode 'haskell-mode "mg" "haskell/navigation")
(spacemacs/declare-prefix-for-mode 'haskell-mode "ms" "haskell/repl")
(spacemacs/declare-prefix-for-mode 'haskell-mode "mc" "haskell/cabal")
(spacemacs/declare-prefix-for-mode 'haskell-mode "mh" "haskell/documentation")
(spacemacs/declare-prefix-for-mode 'haskell-mode "md" "haskell/debug")
(spacemacs/declare-prefix-for-mode 'haskell-interactive-mode "ms" "haskell/repl")
(spacemacs/declare-prefix-for-mode 'haskell-cabal-mode "ms" "haskell/repl")
;; key bindings
(defun spacemacs/haskell-process-do-type-on-prev-line ()
(interactive)
(if haskell-enable-ghci-ng-support
(haskell-mode-show-type-at 1)
(haskell-process-do-type 1)))
(evil-leader/set-key-for-mode 'haskell-mode
"mgg" 'haskell-mode-jump-to-def-or-tag
"mgi" 'haskell-navigate-imports
"mf" 'haskell-mode-stylish-buffer
"msb" 'haskell-process-load-or-reload
"msc" 'haskell-interactive-mode-clear
"mss" 'spacemacs/haskell-interactive-bring
"msS" 'haskell-interactive-switch
"mca" 'haskell-process-cabal
"mcb" 'haskell-process-cabal-build
"mcc" 'haskell-compile
"mcv" 'haskell-cabal-visit-file
"mhd" 'inferior-haskell-find-haddock
"mhh" 'hoogle
"mhH" 'hoogle-lookup-from-local
"mhi" (lookup-key haskell-mode-map (kbd "C-c C-i"))
"mht" (lookup-key haskell-mode-map (kbd "C-c C-t"))
"mhT" 'spacemacs/haskell-process-do-type-on-prev-line
"mhy" 'hayoo
"mdd" 'haskell-debug
"mdb" 'haskell-debug/break-on-function
"mdn" 'haskell-debug/next
"mdN" 'haskell-debug/previous
"mdB" 'haskell-debug/delete
"mdc" 'haskell-debug/continue
"mda" 'haskell-debug/abandon
"mdr" 'haskell-debug/refresh)
;; Switch back to editor from REPL
(evil-leader/set-key-for-mode 'haskell-interactive-mode
"msS" 'haskell-interactive-switch-back)
;; Compile
(evil-leader/set-key-for-mode 'haskell-cabal
"mC" 'haskell-compile)
;; Cabal-file bindings
(evil-leader/set-key-for-mode 'haskell-cabal-mode
;; "m=" 'haskell-cabal-subsection-arrange-lines ;; Does a bad job, 'gg=G' works better
"md" 'haskell-cabal-add-dependency
"mb" 'haskell-cabal-goto-benchmark-section
"me" 'haskell-cabal-goto-executable-section
"mt" 'haskell-cabal-goto-test-suite-section
"mm" 'haskell-cabal-goto-exposed-modules
"ml" 'haskell-cabal-goto-library-section
"mn" 'haskell-cabal-next-subsection
"mp" 'haskell-cabal-previous-subsection
"msc" 'haskell-interactive-mode-clear
"mss" 'spacemacs/haskell-interactive-bring
"msS" 'haskell-interactive-switch
"mN" 'haskell-cabal-next-section
"mP" 'haskell-cabal-previous-section
"mf" 'haskell-cabal-find-or-create-source-file)
;; Make "RET" behaviour in REPL saner
(evil-define-key 'insert haskell-interactive-mode-map
(kbd "RET") 'haskell-interactive-mode-return)
(evil-define-key 'normal haskell-interactive-mode-map
(kbd "RET") 'haskell-interactive-mode-return)
;;GHCi-ng
(when haskell-enable-ghci-ng-support
;; haskell-process-type is set to auto, so setup ghci-ng for either case
;; if haskell-process-type == cabal-repl
(setq haskell-process-args-cabal-repl '("--ghc-option=-ferror-spans" "--with-ghc=ghci-ng"))
;; if haskell-process-type == GHCi
(setq haskell-process-path-ghci "ghci-ng")
(evil-leader/set-key-for-mode 'haskell-mode
;; function suggested in
;; https://github.com/chrisdone/ghci-ng#using-with-haskell-mode
"mu" 'haskell-mode-find-uses
"mht" 'haskell-mode-show-type-at
"mgg" 'haskell-mode-goto-loc))
;; Useful to have these keybindings for .cabal files, too.
(with-eval-after-load 'haskell-cabal-mode-map
(define-key haskell-cabal-mode-map
[?\C-c ?\C-z] 'haskell-interactive-switch))))
;; align rules for Haskell
(with-eval-after-load 'align
(add-to-list 'align-rules-list
'(haskell-types
(regexp . "\\(\\s-+\\)\\(::\\|∷\\)\\s-+")
(modes . '(haskell-mode literate-haskell-mode))))
(add-to-list 'align-rules-list
'(haskell-assignment
(regexp . "\\(\\s-+\\)=\\s-+")
(modes . '(haskell-mode literate-haskell-mode))))
(add-to-list 'align-rules-list
'(haskell-arrows
(regexp . "\\(\\s-+\\)\\(->\\|→\\)\\s-+")
(modes . '(haskell-mode literate-haskell-mode))))
(add-to-list 'align-rules-list
'(haskell-left-arrows
(regexp . "\\(\\s-+\\)\\(<-\\|←\\)\\s-+")
(modes . '(haskell-mode literate-haskell-mode))))))
(defun haskell/init-haskell-snippets ()
;; manually load the package since the current implementation is not lazy
;; loading friendly (funny coming from the haskell mode :-))
(setq haskell-snippets-dir (spacemacs//get-package-directory
'haskell-snippets))
(defun haskell-snippets-initialize ()
(let ((snip-dir (expand-file-name "snippets" haskell-snippets-dir)))
(add-to-list 'yas-snippet-dirs snip-dir t)
(yas-load-directory snip-dir)))
(with-eval-after-load 'yasnippet (haskell-snippets-initialize)))
(defun haskell/init-hindent ()
(use-package hindent
:defer t
:if (stringp haskell-enable-hindent-style)
:init
(add-hook 'haskell-mode-hook #'hindent-mode)
:config
(progn
(setq hindent-style haskell-enable-hindent-style)
(evil-leader/set-key-for-mode 'haskell-mode
"mF" 'hindent/reformat-decl))))
(defun haskell/init-shm ()
(use-package shm
:defer t
:if haskell-enable-shm-support
:init
(add-hook 'haskell-mode-hook 'structured-haskell-mode)
:config
(progn
(when (require 'shm-case-split nil 'noerror)
;;TODO: Find some better bindings for case-splits
(define-key shm-map (kbd "C-c S") 'shm/case-split)
(define-key shm-map (kbd "C-c C-s") 'shm/do-case-split))
(evil-define-key 'normal shm-map
(kbd "RET") nil
(kbd "C-k") nil
(kbd "C-j") nil
(kbd "D") 'shm/kill-line
(kbd "R") 'shm/raise
(kbd "P") 'shm/yank
(kbd "RET") 'shm/newline-indent
(kbd "RET") 'shm/newline-indent
(kbd "M-RET") 'evil-ret
)
(evil-define-key 'operator shm-map
(kbd ")") 'shm/forward-node
(kbd "(") 'shm/backward-node)
(evil-define-key 'motion shm-map
(kbd ")") 'shm/forward-node
(kbd "(") 'shm/backward-node)
(define-key shm-map (kbd "C-j") nil)
(define-key shm-map (kbd "C-k") nil))))
(when (configuration-layer/layer-usedp 'auto-completion)
(defun haskell/post-init-company ()
(spacemacs|add-company-hook haskell-mode)
(spacemacs|add-company-hook haskell-cabal-mode))
(defun haskell/init-company-ghc ()
(use-package company-ghc
:if (configuration-layer/package-usedp 'company)
:defer t
:init
(push (if haskell-enable-ghc-mod-support
'(company-ghc company-dabbrev-code company-yasnippet)
'(company-dabbrev-code company-yasnippet))
company-backends-haskell-mode)))
(defun haskell/init-company-cabal ()
(use-package company-cabal
:if (configuration-layer/package-usedp 'company)
:defer t
:init
(push '(company-cabal)
company-backends-haskell-cabal-mode))))