haskell-and-friends.el

(use-package direnv
  :demand t
  :config
  (validate-setq direnv-always-show-summary nil)
  (direnv-mode +1)
  :general
  (:prefix "C-c d e"
           "" '(nil :wk "direnv")
           "a" 'direnv-allow
           "e" 'direnv-update-environment
           "d" 'direnv-update-directory-environment))

(use-package lsp-mode
  :after direnv
  :preface
  (setq lsp-keymap-prefix "C-c l")
  ;; Experimental workaround to https://github.com/wbolster/emacs-direnv/issues/17,
  (advice-add 'lsp :before 'direnv-update-environment)
  :hook
  ((lsp-mode . lsp-enable-which-key-integration)))

(use-package haskell-mode
  :config
  (validate-setq haskell-process-log t
                 haskell-process-show-debug-tips nil
                 haskell-process-suggest-remove-import-lines t
                 haskell-process-suggest-hoogle-imports t)
  ;; This one grinds everything to a halt.
  (setq-default flycheck-disabled-checkers '(haskell-stack-ghc))
  :hook
  (haskell-mode . interactive-haskell-mode)
  (haskell-mode . subword-mode)
  (haskell-cabal-mode . subword-mode)
  :general
  (:keymaps 'haskell-mode-map
            :prefix "C-c m"
            "" '(nil :wk "haskell")
            "h" 'hoogle
            "t" 'haskell-session-change-target)
  (:keymaps 'haskell-mode-map
            :prefix "C-c m g"
            "" '(nil :wk "go")
            "i" 'haskell-navigate-imports
            "I" 'haskell-navigate-imports-return)
  (:keymaps 'haskell-mode-map
            :prefix "C-c m r"
            "" '(nil :wk "interactive")
            "r" 'haskell-interactive-bring))

(use-package lsp-haskell
 :config
 (setq lsp-haskell-process-path-hie "haskell-language-server-wrapper")
 :hook
 (haskell-mode . lsp))

(use-package ormolu
  :after crux
  :config
  (crux-with-region-or-buffer ormolu-format-region)
  :general
  (:keymaps 'haskell-mode-map
            "C-c m f" 'ormolu-format-region))