92 lines
3.6 KiB
Org Mode
92 lines
3.6 KiB
Org Mode
← [[doom-module-index:][Back to module index]] ↙ [[doom-module-issues:::lang haskell][Issues]] ↖ [[doom-module-source:lang/haskell][Source]] ± [[doom-suggest-edit:][Suggest edits]] ? [[doom-help-modules:][Help]]
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#+TITLE: :lang haskell
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#+SUBTITLE: A language that's lazier than I am
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#+CREATED: March 29, 2016
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#+SINCE: 0.9
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* Description :unfold:
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This module adds Haskell support to Doom Emacs.
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** Maintainers
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*This module needs a maintainer.* [[doom-contrib-maintainer:][Become a maintainer?]]
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** Module flags
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- +lsp ::
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Enable LSP support for ~haskell-mode~. Requires [[doom-module:][:tools lsp]] and a langserver
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(supports [[https://github.com/haskell/haskell-language-server][haskell-language-server]]).
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** Packages
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- [[doom-package:][haskell-mode]]
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- [[doom-package:][lsp-haskell]] if [[doom-module:][+lsp]]
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** Hacks
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/No hacks documented for this module./
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* Installation
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[[id:01cffea4-3329-45e2-a892-95a384ab2338][Enable this module in your ~doom!~ block.]]
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It is recommended to install the haskell tooling using [[https://www.haskell.org/ghcup/][ghcup]]. Only ghc is needed
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for basic functionality:
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#+begin_src sh
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ghcup install ghc
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#+end_src
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but =+lsp= users should also install the language server:
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#+begin_src sh
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ghcup install hls
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#+end_src
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Installing [[https://www.haskell.org/cabal/][cabal]] or [[https://docs.haskellstack.org/en/stable/README/][stack]] as well is recommended, and can be done through
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=ghcup=.
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=haskell-mode= provides support for [[https://github.com/ndmitchell/hoogle][hoogle]], which can be installed through
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system package manager, cabal, or stack.
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=haskell-language-server= provides support for [[https://github.com/ndmitchell/hlint/][hlint]], and haskell code
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formatters such as [[https://github.com/lspitzner/brittany][brittany]], [[https://github.com/ennocramer/floskell][floskell]], [[https://github.com/tweag/ormolu][ormolu]], [[https://github.com/fourmolu/fourmolu][fourmolu]], and [[https://github.com/haskell/stylish-haskell][stylish-haskell]],
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which can be installed through system package manager, cabal, or stack.
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* TODO Usage
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#+begin_quote
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🔨 /This module's usage documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
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#+end_quote
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This module integrates the haskell packages into Doom by providing things such
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as REPL support, project root recognition, etc. It also provide the following
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keybindings:
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| Keybinding | Description |
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|-----------------+-----------------------------------------------|
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| [[kbd:][<localleader> b]] | Build the current cabal project |
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| [[kbd:][<localleader> c]] | Visit the =.cabal= file of the current buffer |
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| [[kbd:][<localleader> h]] | Toggle visibility of the form at point |
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| [[kbd:][<localleader> H]] | hides all top level functions |
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* TODO Configuration
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#+begin_quote
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🔨 /This module's configuration documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
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#+end_quote
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After installing your preferred formatter, make sure to set
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=lsp-haskell-formatting-provider= to it.
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Make sure to configure the lsp to use your perfered formatter, e.g.:
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#+begin_src emacs-lisp
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;; ~/.doom.d/config.el
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(after!
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(setq lsp-haskell-formatting-provider "brittany"))
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#+end_src
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* Troubleshooting
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/There are no known problems with this module./ [[doom-report:][Report one?]]
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* Frequently asked questions
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/This module has no FAQs yet./ [[doom-suggest-faq:][Ask one?]]
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* TODO Appendix
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#+begin_quote
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🔨 This module has no appendix yet. [[doom-contrib-module:][Write one?]]
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#+end_quote
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