Update hydras for Elixir, FSharp and Haskell

languages/haskell.el

@@ -18,20 +18,37 @@
   :ensure t
   :defer t)
 
-(use-package dante
+(use-package lsp-haskell
   :ensure t
   :defer t
-  :requires (haskell-mode))
+  :requires (lsp-mode lsp-ui haskell-mode)
+  :config
+  (setq lsp-haskell-process-path-hie "haskell-language-server-wrapper"))
+
+(defhydra my-haskell/context-hydra (:color teal :hint nil)
+  "
+  Haskell actions
+
+   ^Haskell^                          ^Actions^
+^^^^^^^^-----------------------------------------------------------------------
+_f_: Format buffer
+_i_: imenu
+"
+  ("q" nil "cancel" :color blue)
+
+  ("f" lsp-format-buffer)
+  ("i" lsp-ui-imenu))
 
 (defun activate-haskell-mode ()
   "Run this in haskell-mode."
   (set-indent 2)
   (column-enforce-n 80)
-  (dante-mode)
+  (lsp)
+  (define-key haskell-mode-map (kbd "C-c l") 'my-haskell/context-hydra/body)
 
   ;; Company list override
   (add-to-list (make-local-variable 'company-backends)
-               '(dante-company company-yasnippet)))
+               '(company-capf company-yasnippet)))
 
 (add-hook 'haskell-mode-hook 'activate-haskell-mode)