https://github.com/matthewbauer/nix-haskell-mode

Automatic Haskell setup in Emacs, for Nix users
https://github.com/matthewbauer/nix-haskell-mode

Last synced: about 1 month ago
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Automatic Haskell setup in Emacs, for Nix users

• Host: GitHub
• URL: https://github.com/matthewbauer/nix-haskell-mode
• Owner: matthewbauer
• License: gpl-3.0
• Created: 2019-03-29T18:22:31.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-06-15T01:35:43.000Z (over 5 years ago)
• Last Synced: 2024-10-11T23:42:06.631Z (2 months ago)
• Language: Emacs Lisp
• Size: 121 KB
• Stars: 28
• Watchers: 3
• Forks: 2
• Open Issues: 2
• Metadata Files:
  • Readme: README.org
  • License: LICENSE

Awesome Lists containing this project

• awesome-nix - nix-haskell-mode - Automatic Haskell setup in Emacs. (Programming Languages / Haskell)

README

        
#+title: nix-haskell-mode

#+author: Matthew Bauer

#+email: [email protected]

#+language: en

#+keywords: nix haskell emacs

#+html_head:  

#+link_home: https://github.com/matthewbauer/nix-haskell-mode

[[https://melpa.org/#/nix-haskell-mode][file:https://melpa.org/packages/nix-haskell-mode-badge.svg]]

nix-haskell-mode is an easy way to get Haskell projects set up in

Emacs. It uses haskell-mode’s interactive-haskell-mode to provide

integration with Emacs. Nix is used to pull in dependencies of each

Cabal file.

To use with use-package, just add this to your configuration,

#+BEGIN_SRC emacs-lisp

(use-package nix-haskell-mode

  :hook (haskell-mode . nix-haskell-mode))

#+END_SRC

nix-haskell-mode is available in MELPA. You can install it yourself

with =M-x package-install nix-haskell-mode=. Alternative configuration

for vanilla Emacs is available below,

#+BEGIN_SRC emacs-lisp

(require 'haskell-mode)

(require 'nix-haskell-mode)

(add-hook 'haskell-mode-hook 'nix-haskell-mode)

#+END_SRC

This configuration should work out of the box with Cabal projects. If

you have custom dependencies that need to be available, you should

create override in Haskell packages in Nix. More documentation on this

is available in the Nixpkgs manual available here:

https://nixos.org/nixpkgs/manual/#users-guide-to-the-haskell-infrastructure

* Affected modes

These modes are affected by nix-haskell-mode. They are listed below

along with what variables are set by nix-haskell-mode.

- Flycheck - sets =flycheck-ghc-package-databases= and

  =flycheck-haskell-ghc-executable=.

- Haskell Mode - sets =haskell-process-type= to =cabal-new-repl=,

  =haskell-process-path-cabal=, =haskell-process-args-cabal-new-repl=.

* Project information

This project is available at

http://github.com/matthewbauer/nix-haskell-mode. Pull requests and

issues are accepted.

* Disabling nix-haskell-mode for a project

Occasionally you will want to disable nix-haskell-mode. This might

occur in very large projects where interactive-haskell-mode fails at

or when some dependency cannot be fetched succesfully. In these cases,

you should run the following in the root of your project:

=M-x

add-dir-local-variablehaskell-modeeval(nix-haskell-mode

-1)=